> There has been a discussion on the nopistons forum about TES
o-rings. The installation
>
> method that some of the guys used may questionable, but I
thought
it may be good to discuss here.
>
>
http://www.nopistons.com/forums/index.php?showtopic=67208
< http://www.nopistons.com/forums/index.php?showtopic=67208>
>
> Post 35 on the second page has some pictures of the o-rings
after
a tear down.
>
> What are your thoughts Paul?
>
> Heath
>
> I am not allowed to access that forum :) Obviously they don't
want the truth :)
> If you want to cut and paste the message to an email and
send it
to me I will comment.
>
> If they are too big they WILL cause BIG problems. People have to
> buy the exact right size directly from Creavey. What they sell
elsewhere
> may not be the right size. For an example a 3/32" dia. O ring
will not cut it and
> will cause problems as it is not .096" in diameter as one would
think.
> It is .108" inches in diameter. TOO BIG!!!!!!!!!!!!!!!
>
> Here is a pdf file on the subject.
>
> Paul Lamar ...No rotor no motor.
You have to register and sign in to view the post. I PDF'd the
post
in case you
don't want to register. The post is concerning TES o-rings Tracy
sells, and I
assume he followed your guidelines when putting the package
together. This may
very well be a case of operator error as far as proper
installation
as some people
that responded to the post had good luck and others did not. One
person did reference
your website and write up on TES o-ring selection.
Heath Holbrook
I don't register and I don't require people to register here. I
ask
people here
to sign their name. Sometimes they don't but I know who they are.
I don't know what register is about but I think they are just
gathering information
for marketing purposes.
No comment on the pdf as I don't know who "B" is :) He could be
working for
Mazda Parts Department :) The thing about the Internet is there are
shills lurking
about. A shill is a person that is paid to discredit certain
products and services
and sell other products or services instead. I have certain ways of
detecting shills
with about 12 years experience on BBS's and the Internet. If I told
you about the
ways I would have to kill you :)
I will say "B" is not providing the required details on diagnostics
of his alleged overheating.
For example; Does the water jacket hold pressure? Is there a
coolant
loss?
As far as I can tell "B" stands for Bull shiter :) Also the O-rings
he is talking
about did not come from Creavey and I have no idea what size
they are.
-----------------------------------------------------------------------------
I take it back about "B" and I apologize to him. I checked back on
the old messages
and he was on the list for awhile. His name (I think) is Brian D.
Cain. He seems reasonable.
What he apparently refuses to do is store the TES O-rings on a
board
for a few days
to flatten them before using. This is IMHO absolutely essential.
Also people complaining
about over heating with these TES O-rings are not pressurizing the
cooling system to check
for internal leaks. All real mechanics know how to do that. Over
heating can be caused by a
myriad of factors of course.
The TES O-ring splitting is unheard of using Creavey O-rings.
Somebody somewhere
has a quality control problem. It could be Creavey as I don't know
where these
TES O-rings were purchased. Looking at the McMaster TES O-rings one
can tell they
obviously are made by some one other than Creavey. Perhaps made in
China.
Mic those O-rings when you get them for being the proper size.
Paul Lamar ...No rotor no motor.
Paul,
I'm wondering if the engines that had problems also had lapped side
housings. It looked to me that at least one of the TES o-rings were
pinched and later failed. If you grind/lap the side housings a few
thousandths, wouldn't you need to change to smaller cross-section
o-rings?
BTW, my TES o-rings were easy to install, once I got the correct
lengths. No leaks either, and I'm running a 25# pressure cap. I used
Hylomar to hold them in place. The guys on the No Pistons list talk
about using Vaseline. Maybe that's why they're having trouble? Just a
guess...
Mark St.
A few thou should not make a difference. 10 thou or more is another
matter.
Vaseline is the Mazda recommended stuff. The main seal is metal to metal
as Hylomar won't take that heat directly. I know people use it and
get away with it but I would not recommend it for this application.
The O-rings are there to keep the coolant in the water jacket and
not seal the combustion gases. However even the stock square seals
have a
layer of Teflon on one side. Mazda calls it white paint in the shop
manuals
but it is Teflon which becomes obvious when they are removed from a
used engine.
The Teflon goes on the OUTSIDE of the seal because of the exhaust gases
recirculated in the rotor and end housings are very close to the
O-rings... I think.
No oil is allowed on the silcone rubber as silcone is attacked by
hydro carbons. That is another reason TES O-rings are better.
Paul Lamar ...No rotor no motor.
Reminder.. Please sign your posts..
Thanks,
Matt-
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