Subject: Apex Seals
From: ACRE NL
Date: 2/4/2002, 1:21 AM


I've been watching Bruce Turrentine's 13B rebuild tape and
I've got a few
questions about re-using various seals. My engine is a
13BREW, which I am
going to put 88-91 NA rotors in. Do I need to go with all
new apex , side and
corner seals, or can I re-use some of the old seals. And,
for the thousandth
time, what is a good source of the various o-rings used in
the re-build.

Specifically, the side oil o-rings from Hayes are more
expensive than others
that some people here have mentioned, so what is the source
and the part
numbers of these things?
Thanks for suffering through these questions yet again.

Brian Trubee


I'll let Bruce answer that.

I'll have to search the CD again for the sizes  Brian. Later.
http://www.creavey.com is the source of Teflon encapsulated silicone
O-rings however.

They are cheaper than the stock Mazda oil seal O-rings and higher
temp. Also send email to Dave Lemon at Mazdatrix and see if
he is carrying
them yet.

Chuck, did you get your new engine back together with these
TES O-rings yet?

Paul Lamar


No not yet. My rotor housings have a small groove I don't like, see attached
photo. I am waiting to see if Mike Harrington has any better ones he will
sell. The oil consumption on my current motor seems to have leveled off at 1
qt per 3 hours so the need is not urgent yet. Maybe another month or so.

BTW I reused most of the seals (apex, corner, and steel oil seals) when I
rebuilt the current motor. The new motor will have all new seals. Hurley
apex seals, stock Mazda gasket set and housing O-rings, your TES oil seal O
rings.

Chuck Dunlap

Ops looks like some FOD went through there.

Paul Lamar
 
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