using o rings in seals

Rkh · Oct 9, 2015

friend of mine helped me put in steering box seal on my mf-65 and said if you put an o ring bigger then size of the seal thats in the frame of the seal, would help seal better. we did that with this seal & will see if it works. we compared the seal with the o ring and without and it does compress the seal against the shaft with the o ring added. dont know if this would work for all seals.

Mike M · Oct 9, 2015

Are you placing it over the tension spring of the oil seal ?

Or do your seals not have the spring.

Rkh · Oct 9, 2015

Right over tension spring

Janicholson · Oct 9, 2015

If the new seal is in an old shaft groove, it can help. If not it can reduce the life of the seal considerably. Seals must be a tiny bit leaking or they rub rubber to metal and like an eraser turn to dust. Jim

FBH44 · Oct 10, 2015

Some [many?] O-rings are designed to sit in a polished-both-sides, correctly sized groove, which must be lubricated. The O-ring is meant to flex and slide back and forth very slightly inside the groove. One side of the groove itself can slide. Many things can go wrong; not the correct lube, not enough lube, not the correct polished surface.

using o rings in seals

Rkh

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Mike M

Well-known Member

Rkh

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Janicholson

Well-known Member

FBH44

Well-known Member

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