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Old 09-12-2019, 12:19   #1
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Motor mount recommendation for Yanmar SB12

It's about time for new motor mounts on our trusty old one-banger. Its a 1978 Yanmar SB12. Any suggestions on which mounts to use? Here is a quick photo of what we are getting away with currently.

Thanks folks!Click image for larger version

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Old 09-12-2019, 23:34   #2
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Re: Motor mount recommendation for Yanmar SB12

It looks as though you already have "Bushings" brand engine mounts, why not order an identical new set from them. Look for a part number on the existing mounts.
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Old 10-12-2019, 00:01   #3
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Re: Motor mount recommendation for Yanmar SB12

Or go with yanmar mounts...... I have always used them and am very happy. They are softer than what you have...... and prob a bit more expensive but in my mind it made sense.
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Old 22-09-2021, 19:59   #4
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Re: Motor mount recommendation for Yanmar SB12

Bumping this. Covid derailed our refit/cruising plans for a year but I'm heading back to the boat in two weeks and want to tackle the motor mounts. I just don't know enough to make the decision.

Options as far as I can tell are:

1) Replace with what I have, Bushings Inc DF-2205-1. $50ish each. Marinehowto.com gives a pretty rough review of these and advises against them.

2) These swedish mounts for $40/ea. https://www.ebay.com/itm/272547625978 They are recommended by one other B29.9 owner.

3) Yanmar 104271-08340, for $50 ea, which is the OEM according to one vendor.

4) Yanmar 124070-08341, for $225 each, which is the OEM as far as I can tell from the engine parts catalog and looks more adjustable and robust than any of the other options.

5) R&D Marine® 800-038 - Engine Mount with 4" Footprint 1/2" Stud. They look good and are priced in the middle at $70/ea, which sometimes indicates a decent option...but twoatsea.com found that they created horrible vibrations at idle on their 3gm.

Thoughts?
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Old 23-09-2021, 15:45   #5
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Re: Motor mount recommendation for Yanmar SB12

You could try the Yanmar owners facebook group for more opinions.
ellebogen is another option but I cant comment on in service performance, just google them
Following with interest tho as I know a few ys series owners that want to escape the yammer mafia.
IMO it's going to be impossible to make a ys series yanmar smooth as they are shaky single cylinder.
Have one not to try is Polyflex, an Aussie who bought piston & liner off me reported trouble with them.
Please report back if you go any non Yanmar options.
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