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Old 04-08-2019, 09:52 AM   #21
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Xsbank...I agree, that is what most a peope do.

And most experts see/hear things outside of what they often do and choose...doesn't mean they don't experience new tech or don't have enough info to make an informed opinion.

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Old 04-08-2019, 08:03 PM   #22
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A faulty injector could cause high torsional vibration, particularly at low RPMs when there is not much flywheel inertia.

I'm not necessarily against a "high tech" damper, but it's use may be a symptomatic fix or masking of an underlying issue.

Disclaimer: I have never owned and know little about Lehman diesels.

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Old 04-08-2019, 08:33 PM   #23
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Seems to be a status thing to see how low one can idle their engine. And another status symbol being a big engine many idle their engines very low. Especially around docks and floats where people can hear what a big monster engine is in the boat.

All this is really hard on damper plates and more importantly springs. Best for damper plates is to prop your boat to rated rpm and adjust idle speed up to where the engine runs reasonably smooth. One to 200rpm above the usual does absolutely no harm. Well if you’re over propped a low idle speed will be almost necessary. But it’s not good for damper plates.

North Western Washington State USA
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Old 04-09-2019, 11:29 AM   #24
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Hi Dan,
I have a GB 36 that I replaced the damper plate. If you search the forum I’ve posted pictures of the process. I used a 4 x 4 connected chain to the engine and suspended the engine using a come along. The process is quite easy with a single engine.

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