yanmar

Could someone help me diagnose this knocking sound coming from my 2GM20F engine> Halfway through the recording I am playing with the decompression levers to see if the sound changes. 1) When I lift the the decompression lever for cylinder 1, I get a pulsating feedback on my finger. 2) When I...

I am the new owner of a 1980 Hunter Cherubini 30 ft with a fairly new Yanmar engine. Unfortunately the engine control panel is not as new and being and engineer, I'd like to know a little bit more about my engine while it is running. Has anyone here had experience with swapping out an old panel...

Hello everyone It's finally time to replace the engine mounts under my trusty Yanmar 3GMF. One option would be to replace like with like i.e. OEM Yanmar mounts. The other option would be to use a set of 3rd party mounts such as the R&D Marine mounts sold by PYI. What I am looking for is...

I'm a Great Lakes sailor and have an Oceanis 45 (5th season). I'd like to prepare my boat for early spring long distance cruising, so I have two questions: 1. What is the best approach to having heat while under way? I have a very nice dometic system (heating & cooling), however it only works...

I'm having some work done on my power train (fly wheel to prop) and the mechanic is asking for specs on the Kanzaki KH18 transmission. I've tried to find a service / parts manual on this equipment but keep coming up short. Most references I've found have correctly associated it with the Yanmar...

I have a Variprop 4 blade thats slightly over pitched (only gets to 2900 of a max 3200) I've run it this way for a couple of years but I'm beginning to think that I'm not doing myself any favors here. So I want to adjust accordingly. Now the Yanmar specs say the rotation is counter...

I have a Catalina 309 with 1008 hours on an engine that has been well maintained. Repeated bleeding of the injectors has not allowed starting the engine. A mechanic has indicated that it is a simple problem (which he will not disclose). Does anyone else have knowledge of a simple explanation...

I didn't want this to get lost on the other thread, but I recently purchased a replacement mixing elbow for my Yanmar 1GM from Ben Cotton in Norfolk, VA. His web site is at: http://exhaustelbow.com/ There are other models available, scroll down through the site and look. He may also be able to...

Hi, I have a 1985 3GM30F installed in a Hunter 336. It's been perfect for 21 years. This year, the RPMs have started to fluctuate. When the engine's cold and for the first 20 minutes of operation, it behaves normally. After about 20 minutes at cruise speed around 2,500 RPMs, RPMs fluctuate down...

Hey everyone I was hoping maybe somebody had some info I'm looking for. I have a yanmar 4jhe and I am leaking some oil from the rear crankshaft seal. I have replaced it and it is still leaking. I have surface rust and it is pitted. Does anyone know the dimensions of the diameter where the...

I need to replace cooling water hoses on my Yanmar 3GM30F. I live in Huntsville, AL. Can anyone provide some guidance on a reputable parts dealer. I've noticed that Yanmar's set-up seems to limit which suppliers can ship to any given state. Thanks.

Like a small child, it started to "run away" but then came to its own senses, came back and seems to be operating normally with no ill effects... what gives? Okay so details: Yanmar YSM-8R, water inlet on Port, heel angle 15-20°? I was sailing single handed, sailing into Muskegon channel...

My "Kill the Fuel" handle was left pulled out and being that it was placed in a terrible spot has become bent. The cable still slides nicely, but the solid bar that slides in/out makes it hard to shut off (and push back in). Question: Can the handle be removed from the cable and replaced, or...

Does anyone know what the approx. cost of replacing (4) rusted Yanmar 3GM30 Engine mounts would be on a 1989 Caliber 33? There seems to be plenty of engine compartment work-room to easily access the motor mounts. Could I entertain doing this job myself? Seems a leaky companionway sliding...

Ahoy. I figured my first post ought to be a good one, but maybe it's not. After purchase the previous boat owner told me (after I launched) that the transmission coupler on the prop shaft side needed to be replaced, but neither I nor my boatyard guy saw anything wrong, nor can we seem to...

I recently bought a new engine control panel (tacho, oil pressure, water temp, start, stop and alarms ) on HunterOwners. The panel is a perfect replacement for my 2001 H410, but once wired in, the water temperature shows about 210F (I measured it at 172 F in reality) and the oil pressure shows...

My boat sunk. It has been brought back to life. The existing yanmar engine and trans are toast and must be removed. Will a yanmar 3gm30 fit?

I bought a 1983 Hunter 34 with the original Yanmar 3GMF diesel in January 2015. There is no hour meter on the motor. From the time I got it until IT happened it started right away (maybe 5 revolutions and off we go). Then I decided to maintain it... Read carefully, because there's a quiz at the...

I removed the heat exchanger from a Yanmar 2GM20F and would like to replace the shroud surrounding the core. Does anyone if that is doable and if so, how are the brass end caps which the tubes pass through removed? Did Yanmar pressure fit them on or will a little PB blaster and firm tapping...

I am planning to change antifreeze in the cooling system of my Yanmar 3YM30 (the closed circulation, not the sea water). I could find in the engine manual the coolant capacity, but that does not include the volume of the coolant circulating through the water heater. Does anybody know what extra...