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Old 08-08-2015, 10:43   #1
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transmission coupler

I have a Yanmar 2TNV70 diesel motor and I want to connect it to a Kanzaki transmission. The transmission has a 22mm splined shaft with 20 splines.
The 2TNV70 has 10mm bolt holes (3 ea) on a diameter of 100mm. Does anyone know of a hub connector that will join these two?
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Old 08-08-2015, 11:01   #2
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Re: transmission coupler

I would ask the manufacturer of each.
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Old 09-08-2015, 07:41   #3
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Re: transmission coupler

The object of fitting a spring plate or rubber torsional element between an engine and transmission is to reduce or eliminate the transfer of engine developed torsional vibrations into the gearbox. This helps keep transmission gear clatter down and promotes long life of the gears and clutch parts.

Because the engine you have is an industrial application engine, it's unlikely that the manufacturer has undertaken studies to match the engine and a marine transmission with a suitable damper, so you are on your own a bit here. Probably the most successful path you can take is to source a damper plate from a similar Yanmar marine engine, such as a 2GM or 2 YM, and adapt that damper to your flywheel, either by machining the flywheel to match the damper, or making an adapter to go between the flywheel and the damper. Any decent machine shop can handle the job.

DougR
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Old 09-08-2015, 08:21   #4
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Re: transmission coupler

These couplings are nothing but the hub and springs of a clutch, sans friction material. An auto machine shop that does flywheel work can re-drill your flywheel and find a clutch plate to fit.
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