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The mkiv Supra Owners Club

Fitting a rear main seal


Scott

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For when I eventually find my new rear main seal I thought I would ask for any pointers on fitting it. I haven't removed the cover so I'll just be pushing it in. Anyone had any experience of this? Should I use a mallet or should I just try to press it in? I'm guessing a little bit of oil around the seal wouldn't hurt to help it in there?

 

Thanks :)

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Yes mate I used a thin layer of oil and evenly applied a little pressure with my fingers... this got it into place. I had a small rubber Mallet on standby to tap around edges but it wasnt needed. My thumbs were strong enough. I used a seal purchased from Chris Wilson.

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Take note of exactly where the old seal is sitting in the housing first mate, then when you have it out check the surface it runs on to ensure there is not a pronounced groove worn into it. If there is, but the rest of the surface is untouched, you may have a bit of room to move the seal one way or the other to keep the main sealing lip out of the groove for a better seal.

 

I've also used a different height seals to avoid badly worn sections of rotating shafts on several occasions in my line of work but that may not be necessary. Or possible!

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Take note of exactly where the old seal is sitting in the housing first mate, then when you have it out check the surface it runs on to ensure there is not a pronounced groove worn into it. If there is, but the rest of the surface is untouched, you may have a bit of room to move the seal one way or the other to keep the main sealing lip out of the groove for a better seal.

 

I've also used a different height seals to avoid badly worn sections of rotating shafts on several occasions in my line of work but that may not be necessary. Or possible!

 

I'll just hop in my Delorean and check that out :D

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