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Old 17-05-2012, 08:41   #1
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Replacing Yanmar Motor Mounts - anyone with 3rd party success?

Greetings! I need to buy a shiny set of new motor mounts for my Yanmar 4JH2E. There seem to be quite a few 3rd party manufactured mounts that cost a significant amount less than the Yanmar mounts. The ones I keep finding when searching are these from Torresen Marine:

Sailboat Supplies, Engine Parts and Boat Parts

They cost almost $100 less PER MOUNT than the Yanmar mounts. Has anyone tried these or another 3rd party mount with success? After doing some searching, I've gotten a bit worried about using a 3rd party mount. Examples of why I'm worried:

Yanmar engine mounts are a good thing - SailNet Community

ENGINE MOUNTS

I'd love to go with a 3rd party due to cost and convenience. Even if I wanted to buy the Yanmars, I'd have to find a local supplier due to Yanmar's idiotic regional policy. Unless, that is, anyone knows of a online Yanmar part retailer that can ship to Florida. I'd love to buy my replacement parts from Torresen since they have one of the best websites with Yanmar parts, but they can't ship to Florida. Seems I need to throw away all of this great online technology and talk to Billy Bob at some shop 50 miles away to get parts. Yanmar is ridiculous..../rant
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Old 17-05-2012, 09:43   #2
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Re: Replacing Yanmar Motor Mounts - anyone with 3rd party success?

How much worse than the Yanmar mounts could the 3rd party ones be? My Yanmar mounts are completely rusted after only 7 years!
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Old 17-05-2012, 10:21   #3
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Re: Replacing Yanmar Motor Mounts - anyone with 3rd party success?

There was a report in Practical boat owner a few years ago about replacing the Yanmar mounts with some from Polyflex. These look much better made and engineered than the original ones to my eye.
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Old 17-05-2012, 10:51   #4
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Re: Replacing Yanmar Motor Mounts - anyone with 3rd party success?

Quote:
Originally Posted by virginia boy View Post
How much worse than the Yanmar mounts could the 3rd party ones be? My Yanmar mounts are completely rusted after only 7 years!
seriously, this was the state of mine when I removed them:

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Old 17-05-2012, 11:34   #5
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Re: Replacing Yanmar Motor Mounts - anyone with 3rd party success?

For one two and three cylinder engines I'd stick with the yanmar mounts, but for anything more that runs smoothly I'd go with the pyi mounts. We've got a 3cyl Kubota and I put the pyi mounts on it. the mounts I chose were a lot stiffer than the original, so the engine did a lot less of the jumping around at idle.....and it made it quieter too. Your experience may vary.
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Old 17-05-2012, 13:35   #6
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Re: Replacing Yanmar Motor Mounts - anyone with 3rd party success?

If they are made in China, you know what you'll get.
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Old 05-08-2012, 08:28   #7
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Re: Replacing Yanmar Motor Mounts - anyone with 3rd party success?

I finally replaced the original mounts on my Yanmar 4JH2E at 11 years and 5,000 hours. I ordered R&D mounts from PYI. The new R&D mounts were so much worse than my old Yanmar mounts that I sent them back to PYI who generously refunded my money. I then purchased genuine Yanmar mounts and am very pleased with them. The Yanmar manual says to replace the mounts every two or three years, which I think is a bit excessive. However, the manual has a graph showing the dynamic response (damping) at various RPMs. The R&D mounts would smooth engine above 2600 RPM, but I almost never operate above 2450.

Stick with the Yanmar mounts or find someone with your exact engine who happy with something else. Experimenting is too costly on this subject.
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Old 08-06-2013, 13:32   #8
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Re: Replacing Yanmar Motor Mounts - anyone with 3rd party success?

Go to: Certified Diesel & Marine
2640 Avenue of the Americas, Englewood, FL 34224-9720
Phone: 941-475-7270 and Talk to Wane McNail.
I have experienced very friendly service. Wane can get you any part for your diesel.
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Old 05-02-2017, 21:37   #9
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Re: Replacing Yanmar Motor Mounts - anyone with 3rd party success?

This is an old thread but thought I would add some info in case anyone is doing research. I installed R&D replacement mounts on a 4JH2-TE in 2014. The mounts worked fine at higher RPMs but were horrible at idle. And I mean horrible! The teapot practically rattled off the stove. Suddenly we realized how much time we spent at idle --- looking for an anchoring spot, slowly backing when anchoring, waiting for the anchor to be retrieved, entering harbors... we finally pulled the R&D's out and went back to our old Yanmars. Another boat used them and had the same result: R&D Engine Mounts Review – Two At Sea. I would never recommend using these mounts.

And, unlike for Sailor Harry, PYI refused to refund my money and I ended up selling the mounts on ebay at a loss. Too bad because PYI has been terrific every other time I've dealt with them. I believe they realized something was wrong as I don't think they advertise them any longer.
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Old 05-02-2017, 22:43   #10
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Re: Replacing Yanmar Motor Mounts - anyone with 3rd party success?

bblan,

Thanks for sharing this. Low rpm Yanmar operation in my experience is the real test of motor mounts. And since my 3JH5e vibrates a lot at anything lower than 1500 rpm, I would think Yanmar knows best. Stick with the guys that engineered their engine for the lowest common denominator of installation challenges when recommending the rights motor mounts for their engine is my thinking!
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Old 06-02-2017, 00:32   #11
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Re: Replacing Yanmar Motor Mounts - anyone with 3rd party success?

If you have a technical background, it's not too hard to get your mind around the basic science of mount selection. A few of the manufacturers very kindly provide excellent selection guides which take into account various issues. A bit of Googling is well worth while.

I did this and bought Trelleborg Cushyfloats, which hold my 2GM up very well, and keep it smoother than the old mounts.

There's nothing very particular about a Yanmar versus a Bukh or Volvo or whatever - it's a certain mass of metal, which wobbles around in a very predictable fashion.

Cheers, Graeme
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Old 06-02-2017, 01:21   #12
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Re: Replacing Yanmar Motor Mounts - anyone with 3rd party success?

Quote:
Originally Posted by lockie View Post
If you have a technical background, it's not too hard to get your mind around the basic science of mount selection. A few of the manufacturers very kindly provide excellent selection guides which take into account various issues. A bit of Googling is well worth while.

I did this and bought Trelleborg Cushyfloats, which hold my 2GM up very well, and keep it smoother than the old mounts.

There's nothing very particular about a Yanmar versus a Bukh or Volvo or whatever - it's a certain mass of metal, which wobbles around in a very predictable fashion.

Cheers, Graeme
Graeme,

Can you recall the actual model number of the Trelleborg mounts you used on your 2GM. By the way, is your engine a 2GM or 2GM20?

I ask as I thinking I need to replace my 2GM20 soon...
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