Water in Gear Lube... Penta SX-M 1.79

stant1man

Petty Officer 1st Class
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Jul 21, 2004
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Trying to narrow down a vibration I am experiencing when turning and checked the gear oil... it was high and milky.... I don't think this is what is causing the vibration but recon that the seals need replaced.

Is there a kit available so I can strip and reseal the outdrive?
 

Don S

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Aug 31, 2004
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Re: Water in Gear Lube... Penta SX-M 1.79

Drain the gear lube and pressure check the drive and find where the leak is, you don't really want to get involved in resealing the whole drive unless you plan on buying a lot of expensive special tools.
Was there water in the bellows? Rusty ujoints? Is so, the front seal is probably where the water got in the drive at. That seal is designed to keep oil in to water out of the drive. The bellows is supposed to do that.
 

stant1man

Petty Officer 1st Class
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Jul 21, 2004
Messages
360
Re: Water in Gear Lube... Penta SX-M 1.79

Hi Don,

Thanks for the reply. I recently changed the ujoints and bellows as there was water in there. At this time the drive had milky oil and I changed this at the same time. I had hoped that changing the bellows would fix it... can't say I fully understand what you are saying here -
That seal is designed to keep oil in to water out of the drive. The bellows is supposed to do that.
 

Don S

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Joined
Aug 31, 2004
Messages
62,321
Re: Water in Gear Lube... Penta SX-M 1.79

The seal in the front of the drive where the ujoint shaft goes through is not designed to keep water out of the drive, the bellows is supposed to keep that area dry so the seal isn't designed to keep water out.
If you have water in the drive "Again", pull the drive and make sure there is no water in it again.
 
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