Hi Larry,
I'm sad to say that this sounds pretty serious and this is definitely a repair that needs to be made out of the water. Further, if you can see seepage with the naked eye, you need to take quick and decisive action.
You could well be right in that there may be delamination and/or some pretty serious osmosis. I would recommend having the boat hauled and the whole hull surveyed for moisture content and delamination. The results of this will dictate the remedy, but I am not a qualified fiberglass/delamination expert. Your surveyor should be able to direct you on this.
Best regards,
Captain Ian Fagg
"Hi Ken,
In general, the pencil zincs on heat exchangers are located on the bottom of the cylinder. I've attached a link to a photo of a Mercruiser 7.4 that has a yellow exchanger on it - - the zinc is seen on the lower left. Click the link below:
Hope this helps,
Captain Craig Bliss
"Hi Bob,
I think you are doing the right thing with penetrating oil and patience. You might also try fully submerging the chain in diesel fuel (wonderful lubricant) and moving each link a little bit at a time over the course of several hours. Eventually I'm confident this chain will loosen up.
Best,
Captain Bob Wellen
"Hi Ron,
As far as size is concerned 42' is plenty for a couple to live aboard comfortably, especially so in a power boat. It's also going to be a lot easier finding a slip for it. Alden and Wesmac are both quality designed and constructed boats and either one would be a good choice and provide a lot of enjoyment. I would recommend walking the docks at your local marinas and talking with boat owners in the size range you are thinking about and pick their brains about size and drives.
Moving to your drive question - - while at speed, it is difficult for a jet drive to suck in debris; your only worry would be at low speed in shallow water where the chances increase. I'm a bit old school myself, so my choice would be an inboard - - if you foul the prop you can always dive on it to remove the debris. Also, an inboard solution is always less expensive than jet drive. The trade-off is always draft; if you will be in really shallow water much of the time, then jet drive is your best solution. But, if most of your time is spent with at least 4 feet of depth under your keel then an outboard should do fine and be less costly in the long run.
Drop me a line and let me know what you decide, I'd be interested in your solution.
Best,
Captain Craig Bliss
"Hello H.E.,
Here's a little trivia on how we got to 16 bells on New Year's. The Ship's Bell has traditionally been carried on board since man developed shaping of metal, and it was made of brass with the ship's name engraved on it. The practice of ringing bells at sea is as old as the bells themselves and served several purposes. Sounding the ship's bell was used to call the crew to quarters, as a fog signal, for special occasions, and also to mark the passing of time.
In years past, accurate clocks were not available, or to expensive to carry aboard, so sand hour glasses were used to measure time. The ship's boys or midshipmen were assigned responsibility for turning the hour glass, usually every half hour, with the practice of sounding the ship's bell every time the sand glass was turned.
Unlike civil clocks, the number of strikes of the ship's bell does not indicate the hour; instead, they were sounded to mark the time of a duty period. Starting at the beginning of a duty period, every half hour was marked by the ringing of one bell, with an additional ring for each subsequent half hour. Therefore 1230 was marked with one bell, 1300 by two bells and so on, counting until eight bells were sounded marking the end of a four-hour duty period, hence the saying "Eight bells and all is well."
NEW YEAR'S EVE - 16 Bells
On 31 December at the end of the evening watch at 2400, sixteen bells were struck to mark the end of an old year and the beginning of a new. Tradition called for the oldest person on board to "ring out" the old year with 8 bells, while the youngest person on board followed with 8 bells to "ring in" the new.
All the best,
Captain Gordon Hartschuh
"Hi Ron,
I'm not much of an expert on these types of craft, so can't really give you much advice of brands, but hull shape no problem. A flat bottom will promote early planing and this would be useful if you want to reduce the size of engine needed. The downside is it will be uncomfortable when the chop builds up. A rounded hull will take longer to plane, but remain more comfortable in choppy conditions.
As far as engines go, Yamaha is the ONLY engine I would buy. It's far from the cheapest, but you can't beat the dependability, the quiet sound and the fuel economy on their new engines. For other manufacturers Honda and Mercury also make great engines.
For size, your dealer is the best source. They should be able to size the engine based on the boat your by and is gross weight.
Best regards,
Captain Ian Fagg
"Hi Terry,
I just experienced a similar issue with an air conditioning raw water outlet. Mind you, this happened just two days before leaving the Caribbean to sail non-stop to Newport, RI.
The seal on the circulation pump had gone and was leaking water coming from the seawater inlet even when switched off as the whole installation is below the waterline. I closed the through-hull to prevent any further leaking until I could replace the seal. We cast off the lines and set sail without any further thought about danger.
On the first day out I noticed the bilge pump was cycling continuously and checked the bilge to find that we had taken aboard approximately 60-80 gallons of sea water, probably more considering the cycling of the bilge pump. The water was leaking from the broken seal. What transpired was the sea water outlet (located 6 inches above the waterline) at rest, was now on the windward side and given our heeling angle was about 4 feet above the waterline. Our installation did not include an anti-siphon loop between the outlet and the air conditioning circulation pump. Thus, the waves were splashing into the outlet, filling the pipe to the pump and then draining into the bilge through the broken seal.
So . . . Yes, you could install a non-return valve, but my concern is that these valves can easily get stuck in the open position with a piece of debris or fail all together. Also, placing a valve in the line may restrict pump flow. Without a shadow of a doubt, I would immediately install an anti-siphon loop. Take the outlet pipe from the pump to a point on the boat much higher than the waterline in a loop before it continues down to the outlet. Further to this, at the highest point of the loop you should install a breather valve to allow air in, but no water out; this will prevent a back siphon. Installing the anti-siphon loop should be pretty easy to do yourself and the various parts are inexpensive and can be found in most chandleries.
Good job on noticing this one Terry - - it could ruin you whole day.
Best regards,
Captain Ian Fagg
"Hi Ron,
I recently answered a similar question about a boat "not being for sale to U.S. citizens while in U.S. waters." Look up that answer as part of it pertains to your situation as well. Also, I invoke the same disclaimer for that answer, that I am not a lawyer and I am not providing legal advise.
That said, here's your answer. Get a good broker to represent you in the purchase. Take delivery of the yacht off-shore, that way you avoid sales tax all together. You will have to pay U.S. Duty when you bring it back into U.S. waters, but this is much less than the sales tax. Personally, I would document the yacht in Delaware as it is a "duty free" state. This is done all the time and your broker can guide you down this simple path. I would also talk to Atlantic Documentation in Annapolis, MD as they specialize in this sort of thing and can handle the entire process for you.
Now regarding California. You said the boat won't be in California waters, at least for a while. However, being a California resident, the state will attempt to collect personal property tax and that is why it is important that you document monthly expenditures such as dockage, fuel, repair bills that will prove the boat was not in California waters. As far as sales tax goes, the sale didn't take place in California, the boat isn't in California and therefore California isn't entitled to sales tax. Again you may be asked to prove that and that is why I would work with Atlantic Documentation.
Check with your broker, but I believe if you have owned the boat for more than one year, you can then legally bring the yacht into California waters without paying sales tax; it might be eighteen months now. Again you will need documentation of the ownership period. But if you eventually do bring the boat to California waters and keep it there, then ultimately you will end up paying personal property tax.
Get yourself a good broker, talk to Atlantic Documentation and it will all go smoothly.
Hope this helps,
Captain Bob Wellen
"Hi Richard,
This is an interesting problem, stray current is exactly that, it meanders wherever there is an electrical pathway. In other words it's not selective. The perplexing issue is that you say the port-side anode doesn't decompose, but the starboard-side anode does. You also state that the halos and corrosion on the metal underwater parts is worse on the port side where the anode doesn't decompose. This begs the question - - is there and a break in the electrical connection to the port-side zinc anode? That's where I would start.
Moving on, let's assume you've verified that the port anode has electrical connection, then we have to look a stray current sources. Preforming a stray current test is pretty simple when the boat is out of the water. Just take a regular voltmeter and attach the negative lead to the negative side of your service batteries, then touch the positive probe one at a time to the engine block, propeller shaft, your bonded system, keel bolts (if you have them), bow thruster casing (again if you have one), ans so on until you find the source of the stray current. With the boat out of the water the current should read very close to 0.0 Volts. If you do find a stray current then try to isolate it by switching off one at a time at the switch panel the various electrical appliances until you see the voltage disappear. Once you isolate the source, then you can trace the wires back to the offending item.
I recently had to do this on a new Swan 82 and managed to trace a stray current back to some faulty wiring in a compass light. I only took me about half a day, so it's a much less daunting task than it may seem.
However, the fact that your halos and corrosion appear more on the port side and the port side anode isn't decomposing at more or less the same rate as the starboard side suggests to me that the connection to the port side anode is damaged in some way or possibly severed.
Hope this helps. Good luck.
Captain Ian Fagg
"Hello Art,
If you are planning to take the rudders right back to bare metal, then you should use a suitable metal primer before applying the bottom paint. Check the paint manufacturer's recommendations of specific primers and methodology for painting onto bare metal.
If however, the paint is in good condition and has been previously painted with the same product as the bottom coat, then you can go ahead with giving it a light sanding (80 grit) and re-apply the same paint over the top. Remember, the paint is ablative so sand lightly and make sure you don't go down to bare metal, otherwise you will need to prime. Also, make sure you give it a good wash with soap and water to remove any sanding dust and let it dry well before re-coating.
On the annode, the most important thing is that it make full contact with the whole of it's surface area to the bare metal of the rudder/trim tab. It doesn't really matter if you remove the annode before or after you paint, just don't paint under where it goes and don't paint the annode itself, it needs water contact to do its job.
Best regards,
Captain Ian Fagg
"Hi Richard,
The answer lies in the total amps of stored power. The 6-volt batteries hooked in series have more total cranking power. Most likely Egg Harbor chose the set up because of battery technology in 1984 and the 454 engines require a lot of cranking power. However, battery technology has improved dramatically in the last twenty years so today a single 12-volt deep cycle marine battery will work just as well. Hope this answer helps.
Best,
Captain Bob Wellen
"Hi Dave,
Well it is clear you've given considerable thought to this issue. Without actually seeing the spaces you have to work with it's difficult for me to make a decisive recommendation. However, I would suggest that since you already have a slight list to Starboard, that you favour finding a location to Port to try and balance the weight distribution. Concerning trim, you can temporarily secure the inverter in the space where you think you might install it, then make a few runs to see what affect it has on trim. If it affects trim negatively, then find another space and try again until you find the spot with minimal affect. Everything on boats is a matter of compromise.
Now, as far as the run length, if the manufacturers data is recommending that you keep the run shorter than 10 ft., then I would definitely stay within those parameters as you may find that the warranty is voided if you are outside those specifications.
Next, going through bulkheads isn't a problem, but there are several things you need to consider:
- Is the bulkhead watertight? If so, you will need to make sure that after you pass the wire that you fill the hole with a quality marine grade sealent to ensure it maintains it's water tight integrity.
- When you drill through the bulkhead, be it Wood, GRP, or Foam core, you will need to seal the edges again to prevent water ingress. In the case of Wood or GRP, epoxy will be fine, but if it is Foam core you will need something to bridge the gap. I recommend epoxying a section of G10 tubeing to fill the gap. This has worked well for me.
- Lastly, make sure you consider chafe when passing a hose or wire through a bulkhead. There will always be a danger that the wire/pipe may chafe on the hole it is passed through. Make sure you add some additional conduit at this point to protect against chafe.
- Finally, when you have the inverter installed, run it under some high loads and check to see how hot the wire gets. There should be no odour and although the wire may get slightly warm, it should not get hot.
I hope this helps you pick the best of your alternatives.
Cheers,
Captain Ian Fagg
"Hi Art,
5200 is probably not the best material for this application. I would favor an Epoxy filler. West Systems is arguably the best product on the market and available at most good marine stores. I checked online and found a great PDF file you can download with very detailed directions on how to apply and which of their products to use. Click HERE to download the PDF. The link in case you need it is http://westsystem.com/ss/assets/HowTo-Publications/Fiberglass-Boat-Repair-and-Maintenance.pdf; you will find what you need in Section 2 of this document. You'll probably also want to save this PDF because it is loaded with information for future repairs.
Happy repairs,
Captain Ian Fagg
"Hello Mr. Greenbacker,
Well this was a tough one and I had to do a bit of work including talking with a friend who is a shipwright. It's hard because we can't "see" the problem, but here is what I learned. The track for your door works with rollers, to remove the door you need to get to those rollers first and remove them. This will then allow the door to be lifted out. My shipwright friend says all rollers work with an adjuster to keep a snug fit, so you should first try adjusting the roller height, this might save you a lot of work.
If the adjuster trick doesn't work, then the problem is going to be gaining access to the rollers. Chris Craft usually hide the mechanism behind some sort of skirting/vanity board. The skirting, which is probably glued in place, needs to be removed to gain access. Sadly, the only solution is going to be to somehow carefully pry the skirting off. I suspect you are not going to be able to avoid getting out the sand paper and varnish brush when the job is complete. Personally, I would recommend replacing the board with tapped screws to provide a more user friendly means of removing it in the future.
Good luck,
Captain Ian Fagg
"Hi Art,
It is true that Sea-Ray uses Petit Hydrocoat on all their boats. Hydrocoat is an ablative, meaning a small amount of the paint wears away each time you use the boat to keep exposing fresh bioside. It's water-based and easy to work with for a DIY project, but there are a couple of questions to consider.
You said your boat is new and has been in the water for only a few months and mainly in fresh water. Hydrocoat is a multi-year paint so it begs the question why is it failing so soon? It's also interesting that you said it has come up at the "edges." All bottom paint should extend at least 3 inches above the waterline to avoid the "edge" problem. It may be that after purchasing the boat and adding the weight of your personal items that the boat now sits lower in the water and that can be the source of the edge problem. Just make sure when repainting to have at least 3 inches of paint above the waterline.
Although the manufacturer states that no sanding is required, pressure washing at a minimum will be required to make sure the surface is clean. Since Hydrocoat is an ablative paint, pressure washing will remove some layers of the old paint, so as long as the boat is out of the water you may want to consider a light coat over the entire bottom. If you are just touching up, and not intending to sand the area, then make sure you understand fully what Petit will cover in the event that the adhesion fails. For example, will they cover paint cost only? Is it covered only if professionally applied?
Touching up the bottom scrapes is easy enough and the product is thin so you shouldn't have a problem blending the edges either. Just keep in mind the surface preparation and follow the manufacturer's instructions. Also make sure the paint extends 3 inches above the waterline.
Best,
Captain Bob Wellen
"Hi Art,
This is a problem that a lot of boat owners are facing and I just went through it last year so I will give your our experience. When Congress passed the law that forced all stations to convert to digital broadcasts by June 12, 2009, they created a big problem for boaters. Unfortunately, you only have two choices:
As you know, space is at a premium on a boat and the ability to install a large converter box on top of the TV;s just isn't possible. The typical tuner costs $60-70 and slightly more for a unit that uses an RF remote instead of IR. The advantage of an RF model is the unit can be mounted out of site in a storage locker, under a berth, etc.
We decided to start with the master cabin first and bought an Artec converter with an RF remote. Installation was straightforward and we mounted the unit under the master berth. Immediately we had a signal, but the quality of the signal was marginal. As we continued trying to improve the signal we learned that the quality of the antenna and the "sensitivity" of the tuner, meaning how it will respond to low signal, are key. We upgraded the antenna and it significantly improved the signal at the dock, but underway the pitch and roll of the boat resulted in loss of signal and a frozen, or black screen.
Long story short, we tried other receiver/antenna combinations and were able to finally get a sustained picture underway, but the quality of the picture was not acceptable to the owner, so in the end we ended up replacing all the TV's with digital ready TV's. The high gain digital antenna we had bought works well with the DTV sets and provides good picture quality underway and excellent picture quality at anchor or dock. Plus you don't need a converter box.
So, to answer your question, if you are willing to accept a marginal to good picture at anchor or dock with limited or no reception while underway, than an RF controlled converter box may be your solution. It is certainly the least expensive solution. If however, you want excellent picture quality, then your only choice is to replace the existing analog sets with DTV. Wish I had better news for you, but based on our experience, biting the bullet and upgrading to DTV is the best way to go.
Happy channel surfing,
Captain Mike Clayton
"Hello Anibal,
Well, this is a double problem. Because Halon depletes the ozone layer, it was outlawed in 1993, but systems could be recharged until 2002. Since your system has discharged, the first problem is you will need to replace the Halon system with one of the newer FM-200 or FE-241 chemical systems. FE-241 is approved for unoccupied spaces like engine rooms, so that's your best bet.
The bigger problem is the engines won't start. On all the vessels I have run, the engines have automatic tripped relays to shut down the engines just before the Halon is released and I'm sure this is the case with your 2D-tronics. This prevents the orange powder from being sucked into the engine intake. I hope this was the case with your engines. So, the first thing to check is whether the relay has been reset, or re-fused. If it hasn't, that will prevent the engines from starting.
A common mistake after an accidental discharge is restarting the engines to get back to the dock before cleaning up the orange powder. Hopefully, that didn't happen in your case, because the engines will suck the powder into the intake. Remove and check the inside of the air filters and the injector ports for the presence of orange powder. If the engines turn over, but won't start, the engines are probably just fine, but you will now have to clean the area where the valve surfaces mate up atop the engine.
Even if it is simply the relay switch that needs resetting, you should have a qualified marine diesel mechanic inspect the engines before restarting. Also, change the oil and filter and the air and fuel filters as well before restart. Lastly, I would contact the manufacture of the fire suppression equipment for advice on cleanup and price quotes for a new FE-241 system. Most of what you already have can be used for the new system. Hope this helps.
Good luck,
Captain Bob Wellen
"Hi Ron,
I can't comment on Jet-Drive boats because as yet, I have no experience with them. I have heard mixed reports both for and against, the biggest plus being safety of not having a propeller.
I have just outfitted a Swan 82 with a new 14-foot tender with a 40hp 4-stroke engine and am very pleased with the result. We went for an AB 14 fiberglass inflatable open style boat, the engin being a Yamaha F40. The open (no console) design works well for us as we often ferry a lot of guests and luggage around, and not having the cockpit space taken up with a console is definitely a benefit. On the flip side, the boat is pretty lively and needs an experienced driver, especially in choppy/windy conditions. A center console in the boat does add a little more stability and controllability, especially with a 50hp engine.
I would avoid an aluminum bottom like the plague. I have had a number of these over the years and to be frank, none of the manufacturers of these boats paint them very well. Many sail boaters like the aluminum for the small amount of weight saving, but I honestly believe it's not worth it.
Caribe and AB both make a good boat. The Caribe has larger tubes, a benefit for keeping dry, but more difficult to get in and out of from the water. The AB has more of a "turn up" in the bow and a deeper "V" so a slightly smoother ride in choppy conditions, but still a wetter ride than a Caribe in my opinion. If you want to spend a little more cash then I believe the Novurania makes a very high quality product.
Happy tender hunting,
Captain Ian Fagg
"Hi Robert,
The short answer is NO, you shouldn't be using the VHF for communication between crew members on the same boat, even on the low power setting. Some fixed type VHF's do have built in intercom systems with other VHF's in the same network, but they use a hard wire, not the VHF radio frequencies. Also, some of the newest and more expensive handheld VHF's do have private personal communication channels not part of the regular VHF frequencies; these are OK to use intra-vessel. But, if you do require an intercom system there are a number of relatively inexpensive radios on the market that are weather resistant and come with ear pieces for hands free operation and they are often voice activated. These come in especially handy when your crew member is at the bow ready to release the anchor and you are at the helm and it is nice to be able to communicate with your crew without having to shout and it looks all that bit more professional.
Cheers,
Captain Ian Fagg
"Hi John,
Basically there are two ways to winterize the fresh water system on a boat. You can drain the system including the hot water tank (the Dry method), or you can fill the system with RV-approved non-toxic antifreeze (the Wet method).
The "Dry" method requires more than just draining the system, as small amounts of water can remain trapped in low areas, elbows, and fittings. Once these small amounts of water freeze in place they can/will damage the plumbing. But, to properly use the dry method you need to use compressed air to blow out any remaining water after draining the system. This requires an air compressor and appropriate adapters, but is otherwise straightforward. Connect the compressor and let it run until the plumbing is completely dry.
The "Wet" method is where the hot water heater bypass comes in. It is nothing more than a bypass valve installed on the water heater that allows you to bypass the heater when filling the system with antifreeze. Depending on the size of your tank this can save you 6-12 gallons of antifreeze. They sell these so-called kits, but frankly, you can simply connect the "In" and "Out" lines to the water heater and you've created your own bypass valve; no need to buy one.
An additional problem when using the "Wet" method is you have to remove water filters, make sure you flush antifreeze through the heads, shower drains, sink drains, and grey water tanks. For black water tanks make sure they are pumped out and then winterize them with a couple of gallons of antifreeze.
So the answer to your question is that you don't need the bypass at all if you are using the "Dry" method. If using the "Wet" method I would simply connect the in/out lines after draining the water heater and then pump the antifreeze through the system.
At the end of the day, I prefer the Dry method, it costs less, you don't have to flush the system when re-commissioning in the spring, and you don't need a bypass valve. Regardless of which method you use, you still need to winterize the holding tanks.
Best,
Captain Craig Bliss
"Hi Jay -
Yes you can use Muriatic Acid as a bottom wash, but it depends on what your are trying to remove. Basically, all marine bottom cleaners contain acids, usually Muriatic acid. Muriatic acid is hydrochloric acid and also known as swimming pool acid, so it is very inexpensive when bought at a swimming pool supply store.
If you are trying to remove barnacles and heavy growth, first scrape the barnacles and slime off the bottom, then brush full-strength Muriatic acid over the spots and areas of heavy growth. Let sit for 15 mintues, then scrub with a good boat soap and lots of water.
If it is just a general bottom clean, there are lots of bottom cleaning products that work very well. If you want to use Muriatic acid, then I recommend diluting it 50/50 with water, wiping or brushing the bottom and waiting 15 minutes before washing with a good marine boat soap and lots of water.
Remember, Muriatic acis is caustic, so take all necessary precaustions not to breathe the fumes and not to get it on you skin or in your eyes.
Good luck
Captain Bob Wellen
"Hi Edwin,
I took a look at the page link you provided and read the reviews. It certainly sounds promising. However, all of these miracle products seem to have one thing in common, they all contain an acid, be it citric, Phosphoric or worse still Muriatic acid. Over time using these products, working them deep into the pores of the gelcoat as the product suggests, will begin to leave the surface chalky. Knowing this, I would recommend using the product sparingly and then after an application, using some kind of wax to seal the hull. My current favourite hull cleaner is Sea Power Marine Cleaner and Wax which I recommended on Pro's Products on this website. You can buy the product through the website, or West Marine. I use this product on the Swan 82 I run and know it is a quality product.
Bottom line is this; you can use any strong degreaser to wash your hull to remove dirt and grime. For example, diluting a bilge cleaner works well. I find that Osfo (also in Pro's Products) either sprayed on or brushed on works very well for removing rust stains, but best kept away from painted surfaces, especially Awl Craft 2000 (I speak from experience on this !!), and then always seal the boat with wax afterwards to maintain a good shine.
Sadly to maintain a hull in perfect condition is always going to involve some elbow grease. You can find both of these products at most marine product stores.
Good luck,
Captain Ian Fagg
"Hi Lawrence,
You will definitely be able to have the repair made without replacing the whole rail. You said the supports were "snapped off" but I suspect they were badly scratched and bent from the impact, so your fabricator will probably choose to replace the uprights. Any reputable stainless steel fabricator can easily match the undamaged supports. Once the welding is complete, the polishing process should remove any discoloration and your rail will look like new again.
Unfortunately, you will need to remove the rail in order to have the job done, I can't imagine many welders would be prepared to try and do this outside. Find yourself an experienced marine welder and perhaps check out some of his work before you commit to letting him do the job. Shouldn't be too big of a job and the rail will look like new again.
Best of luck,
Captain Ian Fagg
"Hi Marty,
To start, there is definitely an obstruction somewhere in the coolant loop, or the coolant pump has failed. Also, sometimes there is a screen in the coolant loop that may need to be cleaned; check your owner's manual to see if that is the case here.
Assuming that you have checked the coolant pump and it is working properly, another thing you can try is to drain all the coolant, then connect a garden hose under pressure and flush water through to see if it passes at the different points of the coolant loop; that way you can isolate the point of blockage.
My next advice is to seek a trained mechanic. There is definitely blockage, but attempts to disassemble the coolant loop by a novice may open a bigger can of worms, with gaskets needing to be replaced once a section is opened.
Sorry I couldn't be more help, but make sure the pump is working properly, then clean the screen (if applicable), then do the garden hose test to isolate the blockage, then seek the advice of a trained mechanic as these problems are not simple.
Best,
Captain Bob Wellen
"
Hi John,
The 320 Sea Ray Sundancer is a very nice boat. The Smartcraft gauge setup with the standard 2/260-hp Mercrusier can display speed from two different senders: the paddle wheel; or at speed the GPS. My understanding is that whenever a GPS signal is available, it will always override the paddle wheel input. As you stated, there is an adjustment in the speedometer calibration process where you can set the speed at which the Smartcraft gauges change from the paddle wheel input to the GPS - - the “paddle to pitot transition” in your owner’s manual. You also said you currently have the transition set at 21 knots and I think that is the source of your error “check paddle/trans spd”. First, that error message doesn’t “affect” anything, the GPS speed is always more accurate than the paddle wheel. Second, to get rid of the error message, try setting the transition speed (paddle to pitot) to 5 knots. The error you’re seeing is because the Smartcraft gauges are receiving different signals that are in conflict - - i.e. the GPS is showing one speed (the more accurate) and the paddle wheel another (less accurate). Adjusting the transition speed to 5 knots should eliminate the error message. Alternately, in the speedometer calibration you can select “Use GPS Speed” as the speed input and the gauges will always take their input from the GPS sensor. You only need the paddle wheel input for very low speeds in “Troll Control” mode. If that doesn’t solve the issue, then there is an error in your Smartcraft unit that will require a visit from an authorized Mercruiser representative. Good luck and safe boating.
Captain Craig Bliss
Dear Jerry,
Assuming this is a Bennet brand trim system, I agree it is a bit confusing as the labeling on the port & starboard rocker switches are labeled "bow down/bow up". If they are deployed simultaneously "bow down" it does in fact result in the bow moving downward as a result of the stern being induced with lift.
An easier way to think about the trim tabs is "lift" in the stern independently either from the port or starboard stern quarter. Try thinking about them this way on your next excursion and you should have a more enjoyable trim tab experience.
Best, Capt Bob Wellen