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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!rphroy!link.ph.gmr.com!vbreault
- From: vbreault@rinhp750.gmr.com (Val Breault)
- Newsgroups: rec.autos.tech
- Subject: Re: SB Chevy valve stem seals
- Message-ID: <VBREAULT.92Sep10084213@rinhp750.gmr.com>
- Date: 10 Sep 92 12:42:12 GMT
- References: <1992Sep9.164626.10227@infonode.ingr.com>
- Sender: news@rphroy.ph.gmr.com
- Organization: General Motors Research Labs
- Lines: 36
- Nntp-Posting-Host: rinhp750.gmr.com
- In-reply-to: jjolly@jjolly.b24b.ingr.com's message of 9 Sep 92 16:46:26 GMT
-
- In article <1992Sep9.164626.10227@infonode.ingr.com> jjolly@jjolly.b24b.ingr.com (Jack G. Jolly) writes:
-
- My 350 smokes upon startup (pulling through the guides). I intend to
- install some type of seal:
-
- Fun job. BIG improvement for small effort. Very satisfying.
-
- - anyone have experience with "plastic umbrella" vs. "teflon rings" - I
- have someone who can get me teflon seals that will interference fit over
- the guide (no machining), but I've also heard "the teflon jobs wipe off
- too much oil and your valves will go away" ??
-
- No experience with umbrella type. Never heard the rumor about teflon seals.
-
- _ I intend to us an air compressor to keep the valves up while doing the
- replacement. Assuming piston is at TDC (low-comp 8.5:1 motor) should
- I expect problems??
-
- As soon as you begin to fill the cylinder with air, the pressure will
- force the piston to the BDC position. I've never had trouble with
- that technique. Use some kind of air reservoir between compressor
- and cylinder. You don't want to have to worry about someone tripping
- on the electrical cord and dropping a valve into the cylinder.
-
- Sorry for choppy writing. Better stuff takes more time than I have
- right now.
-
- -val-
- --
-
- Val Breault - vbreault@gmr.com - N8OEF
- General Motors Research and Environmental Staff.
- The opinions expressed by the author do not necessarily reflect
- those of the GMRES or the General Motors Corporation.
-
-
-