Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 14-04-2011, 14:55   #1
Registered User

Join Date: Apr 2011
Posts: 1
Yanmar 1GM10 Engine Mounts

I am in need of replacing my 1gm10 mounts. The OEM mounts seem very pricy and of poor quality. I am looking at the Bushings Inc DF-2205-2 , the polymax whatever they are and the PYIINC 800-37y mounts. Has anybody had experience with any of these puppies? I really dont wantr to drop over 400 clams on OEM. The motor sits in a 27 foot Jeanneau.
Thnks
__________________

__________________
tekwizard is offline   Reply With Quote
Old 14-04-2011, 18:53   #2
Eternal Member
 
Chief Engineer's Avatar

Join Date: Aug 2006
Location: North of Baltimore
Boat: Ericson 27 & 18' Herrmann Catboat
Posts: 3,798
Re: Yanmar 1GM10 Engine Mounts

Be advised that the Yanmar Mounts ameliorate some of the vibration that a one lunger has. As long as you don't mind the vibration/noise of a "harder" engine mount tansmitting thu the hull/cabin....go 4 it
__________________

__________________
Chief Engineer is offline   Reply With Quote
Old 14-04-2011, 18:59   #3
Senior Cruiser
 
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,702
Images: 122
Re: Yanmar 1GM10 Engine Mounts

And the mounts from PYI are in the $130 each bracket.
__________________
Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
A nation of sheep breeds a government of wolves!

Unprepared boaters, end up as floatsum!.......
delmarrey is offline   Reply With Quote
Old 11-03-2017, 07:27   #4
Registered User
 
TooCoys's Avatar

Join Date: Apr 2016
Location: Kemah, TX.
Boat: 1967 Chris Craft Commander 31
Posts: 404
Re: Yanmar 1GM10 Engine Mounts

I am resurrecting this thread because sailing friend of mine questioned my motor mounts last night. They have no rubber on them and the vibbration transfers directly to the hull. Do these look normal, or Ian the rubber bushings in fact missing?
Attached Thumbnails
Click image for larger version

Name:	IMG_1048.jpg
Views:	69
Size:	428.4 KB
ID:	142898  
__________________
TooCoys is offline   Reply With Quote
Old 11-03-2017, 08:03   #5
Registered User
 
four winds's Avatar

Join Date: Oct 2010
Location: Wandering the US Gulf Coast
Boat: 78 Pearson323 Four Winds
Posts: 2,138
Re: Yanmar 1GM10 Engine Mounts

There's rubber or something similar in there. Probably.

Take a look while the engine is running and I believe you will see some movement.
__________________
Life begins at the waters edge.
four winds is offline   Reply With Quote
Old 11-03-2017, 08:07   #6
Registered User

Join Date: May 2016
Location: Gunkholing along the Chesapeake Bay
Boat: 81 Hunter Cherubini 27
Posts: 298
Images: 3
Re: Yanmar 1GM10 Engine Mounts

Quote:
Originally Posted by TooCoys View Post
I am resurrecting this thread because sailing friend of mine questioned my motor mounts last night. They have no rubber on them and the vibration transfers directly to the hull. Do these look normal, or Ian the rubber bushings in fact missing?
TooCoys, looking at a video that the marine surveyor sent me of engine testing (I haven't actually been onboard my boat yet, that's next month when I repatriate) and my 1GM appears to have rubberized mounts. Whether or not they are OEM or not, I couldn't tell you. However, looking at the amount of engine vibration on a good running engine with just 600 hours on it, I can't help but think that all of that vibration being transmitted to the hull would certainly not be a good thing.

FWIW, if you can get the specs on the OEM mounts, stud size and type of rubber used, one can use virtually any motor mount that comes close to the OEM specifications (with a little modification on the mounting of course),
whether they are used mounts out of an old beater at the junkyard or a Greyhound bus.
__________________
Teknishn (Technician): One who fixes stuff you can't, based on dubious information provided by those with questionable knowledge and/or experience.
Teknishn is offline   Reply With Quote
Old 11-03-2017, 08:21   #7
Registered User
 
Island Time O25's Avatar

Join Date: Sep 2014
Posts: 2,019
Re: Yanmar 1GM10 Engine Mounts

Last Spring I installed a 2QM15 in place of 11hp Universal. The old Yanmar mounts were OK except the rubber was very hard and probably would not work well as intended. So I got some used but more recent mounts from the yard and they are fine.

On your pic look under the washer which sits on top of the black part. That part I believe is the rubber. It may not feel as such and more like bakelite plastic or some such which means it hardened with age. Just look for matching used but not too old mounts and you'd be OK. Private sellers usually still want an arm and a leg for them but you can score them either from craigslist or boat yards for about $100-$150 for a set.

I forget now if the rubber inserts were replaceable or baked in place but I was doing the install with the help of my marine pro friend who recommended getting a used set he checked out and OK'd before I installed it. Initially we were planning to use the Universal mounts as they were newish looking and intact but suprisingly their bolts were of a much larger diameter and the Yanmar legs were not "meaty" enough to drill out. I also still have old mounts from Volvo MD5A I took off my first boat but these were also with bolts too big for the Yanmar. So much for Yanmar "ruggedness".

According to my friend I could've used any mounts with same bolt diameter as long as they were a matching set. But even if they're not all are adjustable (to a point) to level them off as needed. It is basically as bulb sockets are the same but some bulbs are just too large for the fixture they're going in. You learn a lot when you deal with a pro who is not interested in draining your boat repair account.
__________________
Island Time O25 is offline   Reply With Quote
Old 11-03-2017, 08:32   #8
Registered User
 
MikeFergie's Avatar

Join Date: Mar 2015
Location: Mozambique
Boat: Leopard 40 (2009) & Crownline 250CR
Posts: 134
Re: Yanmar 1GM10 Engine Mounts

These are rubber mounts and look exactly like my Mercruiser v8 mounts on my other boat. They are good
__________________
MikeFergie is offline   Reply With Quote
Old 11-03-2017, 08:37   #9
Registered User

Join Date: Aug 2015
Posts: 444
Re: Yanmar 1GM10 Engine Mounts

Every Yanmar engine has specific engine mounts recommended by the manufacturer. They may all look the same, but they have different "weight" rubber (and a number embossed on the side).

First you have to get the correct mounts, and install them on the correct side of the engine. One side usually has a different weight than the other due to rotation and shaft torque.
__________________
boatbod is online now   Reply With Quote
Old 11-03-2017, 08:41   #10
Registered User
 
TooCoys's Avatar

Join Date: Apr 2016
Location: Kemah, TX.
Boat: 1967 Chris Craft Commander 31
Posts: 404
Re: Yanmar 1GM10 Engine Mounts

Well right now the engine noise and hull vibration is deafening. By comparison, our friends Volvo Penta diesel in their '36 Jouet is nearly undetectable. Maybe it's just my boat and engine.
__________________
TooCoys is offline   Reply With Quote
Old 11-03-2017, 08:47   #11
Senior Cruiser
 
Sailmonkey's Avatar

Cruisers Forum Supporter

Join Date: Sep 2009
Location: Houston
Boat: '76 Allied Seawind II, 32'
Posts: 5,787
Re: Yanmar 1GM10 Engine Mounts

Those are rubber mounts, but lack the amount of deflection built into the oem yanmar mounts. You may consider changing the mounts for some with greater "give".
__________________
Sailmonkey is online now   Reply With Quote
Old 11-03-2017, 09:06   #12
Registered User
 
four winds's Avatar

Join Date: Oct 2010
Location: Wandering the US Gulf Coast
Boat: 78 Pearson323 Four Winds
Posts: 2,138
Re: Yanmar 1GM10 Engine Mounts

Quote:
Originally Posted by TooCoys View Post
Well right now the engine noise and hull vibration is deafening. By comparison, our friends Volvo Penta diesel in their '36 Jouet is nearly undetectable. Maybe it's just my boat and engine.
Those one cylinders really jump around. Never seem to sit still at any RPM.

The original Yanmar mounts are better suited for this than the ones you have.
__________________
Life begins at the waters edge.
four winds is offline   Reply With Quote
Old 11-03-2017, 09:14   #13
Senior Cruiser
 
Cheechako's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 19,371
Re: Yanmar 1GM10 Engine Mounts

Quote:
Originally Posted by TooCoys View Post
I am resurrecting this thread because sailing friend of mine questioned my motor mounts last night. They have no rubber on them and the vibbration transfers directly to the hull. Do these look normal, or Ian the rubber bushings in fact missing?
Those are rubber filled. There are many mounts around, they all have weight ratings.
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard











Cheechako is offline   Reply With Quote
Old 11-03-2017, 15:24   #14
Certifiable Refitter/Senior Wannbe
 
Wotname's Avatar

Cruisers Forum Supporter

Join Date: Jan 2008
Location: South of 43 S, Australia
Boat: Van DeStat Super Dogger 31'
Posts: 7,334
Re: Yanmar 1GM10 Engine Mounts

Quote:
Originally Posted by TooCoys View Post
I am resurrecting this thread because sailing friend of mine questioned my motor mounts last night. They have no rubber on them and the vibbration transfers directly to the hull. Do these look normal, or Ian the rubber bushings in fact missing?
The mounts picture are not Yanmar GM series mounts. The Yanmar ones have a much larger amount of "rubber" incorporated in the mount. If you grab the top of the engine you will be able to move it sideways maybe a quarter to a half an inch with a good shove if you have Yanmar mounts.

While there many after mounts available, these people ( Poly Flex Group - Advanced Polymer Technology for Vibration Control - Y Series ) make direct replacement mounts for many applications including Yanmar. Their Y series mounts are all for Yanmar and I understand that several Yanmar dealers in Europe fit the Polyflex mounts in lieu of Yanmar mounts even when suppling new engines.

One issue with the Yanmar mount is that they are not rated to hold the engine in place when inverted and given they are vulcanised they are unlikely to secure the engine in place when they age even in a serious knock down.

The Polyflex mounts are will support the engine inverted and even when they age.

I have no affiliation with Polyflex and have not fitted these mounts myself but they will be on the shopping list when the time comes to replace my original mounts.

I understand they are available in the USA though Thermoboat.
__________________
All men dream: but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find it was vanity: but the dreamers of the day are dangereous men, for they may act their dreams with open eyes, to make it possible. T.E. Lawrence
Wotname is offline   Reply With Quote
Old 12-03-2017, 06:34   #15
Registered User

Join Date: Aug 2015
Posts: 444
Re: Yanmar 1GM10 Engine Mounts

The 1GM is never going to be silent, but it shouldn't be deafening either. I suspect the Volvo engine in your friend's 36' boat has more than one cylinder, so it's probably not an equal comparison.
__________________

__________________
boatbod is online now   Reply With Quote
Reply

Tags
1gm10, engine, yanmar

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Yanmar Engine Mounts Tropic Cat Engines and Propulsion Systems 49 14-01-2015 16:17
Want To Buy: Yanmar 1GM10 endoftheroad Classifieds Archive 2 19-10-2010 15:33
DC Generator - Yanmar 1GM10 iain_scott Electrical: Batteries, Generators & Solar 22 07-06-2009 11:42
Yanmar engine mounts - what's your experience? mepsnbarry Engines and Propulsion Systems 2 10-03-2009 15:20



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 18:45.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.