OMC Stringer Tilt clutch

[Chad Flaugher]

I have the OMC 190hp stringer outdrive (1974) in a classic Cobalt boat. I've never been able to keep water out of the tilt clutch/motor assembly. I've replaced the shaft oil seal, oil check screw gasket, the cover plate oil seal (Plus added RTV for good measure), and replaced the cap and o-ring assembly at the end of the worm gear. There is literally NOTHING left to replace.I just replaced to tilt motor because it failed. I've come to suspect the shaft oil seal is most likely the culprit. I know this is a common issue with these drives. It was recommended that I fill the gearcase with greese instead of oil, however when I tried that the clutch slipped. Is there a specific greese that works? Is there a different oil seal that works better for the shaft? The seal seams weak, and even the slightest play in the shaft during operation would cause it to fail. PLEASE HELP!:facepalm:hwell::concern::ambivalence:

 

[kenny nunez]

Measure the shaft with a micrometer and order a Speedy sleeve to slip over the shaft and replace the seal. The sleeve is about .003 thick and adds pressure to the seal. A bearing supply house, Mc Master Carr, NAPA or just google the size you need. If you can find a double lip seal that would possibly help also. I used to be an OMC dealer and it seems that there was a double lip seal that was available but that was years ago.

 

[Chad Flaugher]

That particular housing is completely separate from the intermediate housing, correct? Just trying to make sure I have addressed all points of entry. The speedy sleeve sounds like a great idea, and my local DXP should be able to produce any type of oil seal that's still available.

 

[kenny nunez]

The tilt clutch casting is part of the intermediate housing. Water in the tilt clutch was always a problem .