Serious press fit

Karl Townsend · 2010-01-09T00:50:51+00:00

The boat tranny took a dump. Its a ZF-301C behind a Cummins 450 horse diesel. Took a trip to the ZF repair shop yesterday. The front of this tranny has the flywheel transfer plate just press fit on - no key way. To remove the plate, they hooked it up to 50,000 psi oil pressure on a fitting in the plate just for this purpose. The interesting part, to press it back on they put it in a 60 ton press and used the same 50,000 psi fitting to increase the ID of the transfer plate. Interesting piece of German engineering. The mechanics there didn't know, but I assume each piece has a slight taper.Boat should run again tomorrow.Karl

Jan 09, 2010 42 Replies

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Wes 16 years ago

I'm still curious. Can anyone explain how the coupling works?

Wes

-- "Additionally as a security officer, I carry a gun to protect government officials but my life isn't worth protecting at home in their eyes." Dick Anthony Heller

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