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-   -   Vacuum Pump Seal (http://www.bimmerfest.com/forums/showthread.php?t=675239)

papabmw 02-08-2013 06:30 PM

Vacuum Pump Seal
 
I am replacing my Vacuum Pump seal and wondered if I should put a little RTV on the head before I reinstall. Is that a good idea or a bad idea?

Thanks,

HerbP 02-08-2013 07:27 PM

It would not hurt, but it is not needed. Make sure you lubricate the seal, before installing it.

Good Luck!

tampamark 02-08-2013 07:34 PM

Quote:

Originally Posted by papabmw (Post 7369473)
I am replacing my Vacuum Pump seal and wondered if I should put a little RTV on the head before I reinstall. Is that a good idea or a bad idea?

Thanks,

From what I have read it makes it easier to keep the new gasket in place. It is a tight fit and wants to "pop" out of the groove.

07 E63650i 02-08-2013 07:39 PM

Quote:

Originally Posted by papabmw (Post 7369473)
I am replacing my Vacuum Pump seal and wondered if I should put a little RTV on the head before I reinstall. Is that a good idea or a bad idea?

Thanks,

RTV is some good stuff to help with gasket seals. I'm sure you will be fine using it.

Nitrogen 02-08-2013 09:57 PM

If you look at my pics on my vacuum pump seal change on a previous tread I did just that I put it all around the outside edge and a little on the O ring as TampaMark said it helps keep the ring in place for install.
Just be sure to not get any on the inside if you do clean it out. While you are doing it I would change out the oil sending unit that is right under the pump. Since the pump is out it will so much easier. They seem to start leaking about the same time.

papabmw 02-09-2013 08:06 AM

Thanks for all the replys! Off to change the pump and oil sending unit today.


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