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What are the laws/regs regarding what diesel engines can be installed in boats with the EPA emission regs? Can I install any engine in a boat I built? Can I repower my own boat with an old engine? Does recreational or commercial make a difference? Is there a difference in paying a shop to...

I have a small Yanmar with a dual foot alternator. I get some belt dust and the belt is difficult to get tight because of play in the pivot bolt. Also the 8mm bolt has sleeves to bring the size to 10mm or 3/8" for the holes in the alternator feet. This also causes some slop. This quote from...

Glacier Bay has been waiting for their new "Pilot Boat" for a while. The builder brought the boat up the inside passage from Seattle. On their last leg from Juneau to Glacier Bay they had to return to Juneau and get hauled out as something wasn't right. It is a 40' displacement catamaran. When...

On my boat the steering cylinder and rudder are easily accessible from the cockpit. I want to install a bypass valve so I can easily steer with a detachable tiller. I have an emergency tiller now but it has to be bolted on and the ram has to be detached from the rudder stock. I have seen a valve...

I have a Yanmar 3HM. The specs are as follows: 27hp at 3200rpm - continuous rating 30hp at 3400rpm - 1 hour rating 3600 rpm max no load speed WOT throttle is around 3500-3600 rpm. This is my dash tach display reading. I got a digital laser tach recently and haven't tried it yet but maybe today...

From everything I have heard and read Deere makes a great marine engine. On the other hand Deere is often talked about in any discussion of right to repair issues. The talk is mostly about farmers not being able to repair their tractors themselves because diagnostic and repair software is not...

I have a Yanmar 3 cylinder engine. The old Yanmar Operation manual gives the following shut down procedure: 1a) Place the clutch handle in the "neutral" position and idle the engine for about 5 minutes. 1-b) After five minutes' idling, place the speed control lever in the "full" position and...

My 36 year old Allweather has a 112 gallon fuel tank which is a lot for a boat that burns 1/2 to 3/4 gallons an hour. The tank is the floor of the main cabin, You are walking on the steel top. I am not sure what kind of steel it is but it is magnetic and fairly thick as there is no flex. The...

I have a dry exhaust and it exits the pilothouse roof at head level when standing on the back deck. There is ventilation around the pipe where it exits, see photo. I rebuilt the system using galvanized plumbing pipe, (1.25" and 1.5") which was a mistake. The first sea trials with the new system...

Just installed 2 Renogy 50 watt panels and Victron Bluesolar 76/10 controller. Panels are paralell. My boat will be anchored or on a mooring so no access to shore power. Also hope the batteries will be kept up when cruising and anchor for a few days. Our power needs are modest. There is some...

I have an older Yanmar 3HM. It is keel cooled and seems to be in good shape. The 3HM was designed for raw water cooling but was adapted to keel cooling by the builder. The engine temp runs at around 135-140F. I have looked into changing the thermostats to a higher temp but that option is not...

My Allweather has lead ballast in the stern mostly under the shaft seal area. The lead is in pieces of about 30-40 lbs each 10 or so. They are just sitting there, not secured but kind of contained by the shape of the hull. I am considering pouring two part polyurethane foam around them to fix...

I had a LED flood light that interfered with the VHF and FM radio. So I did some research and found Marinebeam.com. On their website's FAQ section they have an article "Controlling EMI" describinh their commitment to selling light that don't emit EMI or at least emit very low levels. That...

I have a dry stack for my little 3 cylinder Yanmar. The engine for its size is a vibrating beast. The engine is connected to the 1 1/4" diameter exhaust pipe via a 1' long steel flexible coupling. The stack is hard bolted with a couple brackets to the aft plywood bulkhead between the wheelhouse...

I want to check valve adjustment on my 3 cylinder Yanmar. I have no record of it ever being done. The manual says to remove the starter to see the timing marks. I would rather not remove the starter and I have read about alternate methods. Here for one: https://www.hoyetractor.com/valve-set.htm...

The manual for my older Yanmar recommends, for my temperatures, mono grade SEA 20 oil. This is hard to find at least for me in remote Alaska. I have been using Delo 400 15-30. I fine lots of conflicting info on the web concerning this but what do you think? Is it worth seeking out a mono grade...

I recently put my boat on the hard to check/replace anodes. All the anodes were similarly reduced which is probably a good thing? My boat is mostly bonded except for the rudder and rudder shaft (hydraulic steering has nylon tubing). I have not had the boat for much more than a year and this is...

https://juneau.craigslist.org/boa/d/westship-48-fiberglass/6595214822.html Not my boat but I know the owner and the boat is immaculate. Very well maintained and ready to go. Start your boat ownership in Southeast Alaska and cruise south.

What is a Taiwan zinc? In searching for a plate zinc with 3" center to center bolt spacing the only one I could come up with has a galvanized steel core. This seems odd to me. It is also refereed to as a Taiwan zinc. I have a fiberglass hull.

When my dry stacked engine has sat for a while and I go to start it I get black spots all over the back deck. It appears to be water and soot. The only explanation I can think of is that water is condensing in the exhaust pipe and or vertical muffler. The pipe is only 1 1/2" and I put a cap on...

I installed two Johnson 2200 GPH bilge pumps 1 1/2 years ago when I did a major refit of all the systems on my Allweather. Today I went out in the boat for a short trip to try out my new cell phone booster, it worked great. At one point I thought I would test the on-off-manual switches on my...

I have reduced considerably the noise from my engine in various ways. My pilothouse ceiling is bare fiberglass (plywood core) and I would like to cover it with some kind of sound absorption material. There are no beams or stringers. What materials have you used and how effective was it? There is...

I have a 26' trawler with a 27 hp diesel and dry exhaust. The exhaust comes straight up from a small elbow on the manifold through a sheet metal housing inside the cabin on the bulkhead. The exhaust exits through the roof with a rain guard. The PO put a muffler on the end of the exhaust...

I have a Yanmar 3HM, 3 cylinder, 27 hp. The engine runs fine, starts easily. The problem is that it stalls when the throttle is pulled back to idle rapidly, as when docking. If I ease the throttle back slowly it keeps running. After it stalls I can restart it immediately. The idle is set...

I bought one of these: Does this completely replace both prop nuts? Do you still use a cotter pin? I had put on a shaft zinc between the prop and the cutlass bearing but there is very little space there. I want to be able to remove my flexible coupling, move the shaft forward and mate the...