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post #1 of 4 Old 06-28-2014 Thread Starter
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injection timing yanmar 1gm10

So I'm at the boat trying to adjust the timing. Dumb question time. If the injection pump squirts fuel after the timing mark has gone past, is it retarded and I need to remove shims, or advanced and I need to add them?

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post #2 of 4 Old 06-28-2014
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Re: injection timing yanmar 1gm10

Not much experience on that engine but know that is retarded. One standard shim equals one degree. Putting in shims will advance it. Makes the pump piston meet the cam follower sooner.
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post #3 of 4 Old 06-28-2014 Thread Starter
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Re: injection timing yanmar 1gm10

Well turns out it needed less shims. Adding shims moved the timing even further off. Managed to get it close (within a few degrees) and that was the best I could manage since there are no shims at all there now, runs all the way to the redline now with no white smoke, and started on the button. That'll do.

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post #4 of 4 Old 06-29-2014
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Re: injection timing yanmar 1gm10

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Originally Posted by PaulinVictoria View Post
Well turns out it needed less shims. Adding shims moved the timing even further off. Managed to get it close (within a few degrees) and that was the best I could manage since there are no shims at all there now, runs all the way to the redline now with no white smoke, and started on the button. That'll do.
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