Vacuum Pump / Brake Booster Pump O-ring replacement

[garrett.fell]

Did you remove your alternator bracket? (Shudder). I've been thinking I may need to change the seal under there but haven't quite reached that conclusion.


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[Johnny_5]

Like you Ive tried everything and still had the smoking at idle. I pulled the trigger and replaced the valve stem seals and guess what....no more smoke. I only changed the valve covers everything else was left alone. I replaced all other gaskets and O-rings prior to the valve stem as I was in denial as well. Spare yourself the headache and pull the trigger!

[Johnny_5]

Originally Posted by ;1022762

I hear ya, but what I don't want to happen is that I do the valve stem seals and then it still smokes. Just trying to make sure I have all of the evidence to support that decision since so much of this smoking crap doesn't look like a traditional valve stem seal issue. As far as I can tell it's the only next step I can try...and it's an expensive one due to the tools required which I don't have. Did you use the AGA tool to do your stems seals?

I was the same way I kept swearing up and down that it wasn't the valve seals and maybe a air leak or CCV's. Even thought about changing the valve cover to the newer style with the external CCV setup! Ive talked to AGA multiple times as well prior to doing it seeing if there was anything else I could do. I did use the AGA Tool for the seals.

[Johnny_5]

Originally Posted by ;1022766

That's great insight, thanks!

No worries!

[SlickNick]

There are a few tips and tricks to fixing the leak issue on the n62 vacuum pump. The biggest issue is knowing how to reinstall it. You have to properly line up the vacuum pump lever with internal slot. Do this by rotating the engine clockwise and lining up the slot in the vertical position. It sounds more complicated than it really is. I caught hell when I did it, until I saw theses videos.

Replacing the vacuum pump seals Part 1
https://www.youtube.com/watch?v=9nRroLFTPJc

Part 2
https://www.youtube.com/watch?v=rAEz3BFe46o

Part 3
https://www.youtube.com/watch?v=Bxlo2odZ5N8