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Old 26-04-2010, 07:11   #1
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Yanmar Engine Mounts

I have a shake rattle and roll issue as well as a chronic oil leak issue with one of my older Yanmar 1GM10. So much so that on Saturday I pulled my starboard engine (with a lot of help from friends). As suspected all of the Yanmar engine mounts literally came apart during the engine extraction. So, I need new engine mounts.

I've been doing research to locate a less expensive alternative to the expensive Yanmar engine mounts. Since I need 4 of them, this gets a little pricey (the admiral is grinding her teeth). So far, I've found two alternatives.

Barr Marine Inc. engine mounts part number BAR 800001 seem to be reasonably priced. As are Engine Mounts by Bushings Inc.. Part number DF2205-2.

The Barr Marine Inc. mounts are fitted by measurements, so I'm going to remeasure my old mounts to verify I have the dimensions correct. Bushings Inc. actually had a conversion table on their website and these are called drop in replacements.

My question is: Has anyone used either of these mounts? Is there info on whether these are good/bad?

Feedback would be greatly appreciated.

I'm dealing with the oil leak today and am going to adjust the valves as well.
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Old 26-04-2010, 07:31   #2
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Ive been satisfied with the Bushings Inc. DF series Motor Mounts, at about the price of the Yanmar OEM models.

Cross-Reference ➥
Yanmar Torresen

However, Torrensen seems to price them a little higher than Ive seen elsewhere.
Ie: DF 2205-2 @ $61+ vs $51.
Yanmar Torresen
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Old 26-04-2010, 08:13   #3
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why not go with the factory stuff? how much less are the cheaper mounts?
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Old 26-04-2010, 08:25   #4
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I would suggest you consider the Polyflex mounts.

Poly Flex Group Pty Ltd
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Old 26-04-2010, 09:36   #5
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I second the use of the type of mounts as Gord has linked to!

That's what came on my boat, and i replaced with similar. Old ones weren't that bad, and were likely 10+ years old (possibly 25 years old). Sailboat only motors < 100 hours per season.

Why does Yanmar "require" their highly flexible OEM mounts?
I do not have any excess vibrations from the ones that Gord has linked to.
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Old 26-04-2010, 09:53   #6
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Quote:
Originally Posted by Northeaster View Post
... Why does Yanmar "require" their highly flexible OEM mounts?
I do not have any excess vibrations from the ones that Gord has linked to.
FWIW ➥ ENGINE MOUNTS
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Old 26-04-2010, 11:12   #7
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Originally Posted by gonesail View Post
why not go with the factory stuff? how much less are the cheaper mounts?
about $200 less for the set of 4.

From the chart Gord provided, it appears the issue is idle vibration. Since I don't make a habit of idling engines, it looks like I can live with the DF series. Having said that, I took a tape measure on the current engine mounts which I assumed were original Yanmar. The hole centers on these are 5 inches. The Bushings Inc catalog says their drop in replacement have hole centers of just 4 inches. They don't match.

Now I'm competely stumped. The current mounts are the Yanmar style. I wonder if these are oversized engine mounts??
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Old 26-04-2010, 12:42   #8
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The current engine mounts are stamped 'Yanmar" D50 on the rubber and
have 5" centers???
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Old 26-04-2010, 16:51   #9
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The current engine mounts are stamped 'Yanmar" D50 on the rubber and
have 5" centers???
a pic could easily confirm your suspicion.....
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Old 26-04-2010, 22:22   #10
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If I recall correctly, Poly Flex have a mount that was either made specifically for the GM series or by coincidence worked very well. I think Yanmar have numerous hardness mounts for various engines and the rear mounts are usually higher rated than the forard ones. Fore & aft alignment of the genuine Yanmar mounts is critical.
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Old 26-04-2010, 22:27   #11
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About 1/4 of the way down the page.
http://www.polyflex.com.au/Gallery/A...ts_Feb2007.pdf
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Old 30-04-2010, 23:17   #12
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Ended up going back to Yanmar and buying the factory mounts. One thing about a catamaran is the engine is a snap to remove and reinstall. I should have done this years ago.
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Old 13-06-2010, 11:01   #13
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Sized different....

I recently had work done on my 4JHTE and the motor mounts will need to be changed soon. The mechanic stated that all 4 of the mounts ARE NOT the same size (port vs starboard). The reason he said was because of the torque of the engine displacing more force to one side than the other. Is this reasoning correct?

I used to get myself sucked into finding cheaper parts vs buying OEM. Not anymore. Too much of a headache and I'll have peace of mind in the long run about the right parts.
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Old 13-06-2010, 13:37   #14
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Where you may find a discrepancy is that height of a Yanmar Mount vs others.
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Old 13-06-2010, 13:39   #15
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Welcome to POLYFLEX YANMAR MASTER ENGINE MOUNTS - THERMOBOAT LTD., is the North American supplier of products to make your boat experience WARM, QUIET, COMFORTABLE and SAFE

Link to spec sheet
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