Here is a suggestion from the TR7 Forum.
Does anyone have experience with the copper head gasket and the sealing
rings or even the grooves cut into the block?
Anyplace in North America do this?
Thanks
Paul
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Contact Coltec Racing - they used to be Holbay Racing and they built the
Formula 3 Sprint engines.
http://coltecracing.com/
I was talking to one of them about 20 years ago and remember mention of
grooves in the head/block as used here:
http://www.ferriday.co.uk/copper/copper.shtml
Quote: "A more aggressive sealing method is to machine a groove into the top
of the block and inlay a piece of wire that protrudes to "bite" into the
copper gasket. If a "receiver" groove is machined into the head the wire
will push the copper into the head groove - this is very aggressive & very
effective."
-----Original Message-----
From: fot-bounces@autox.team.net [mailto:fot-bounces@autox.team.net] On
Behalf Of Craig Leinicke
Sent: May 19, 2011 6:13 PM
To: fot@autox.team.net
Subject: [Fot] TR7 Head Gasket Issues
Looking for some help...
After trailering our land speed TR7 900 miles to run at Maxton NC last
weekend... an issue which we thought we had solved... re-appeared.
On our first run the engine blew the head gasket in the number 4 cylinder
when we shifted into 5th gear. The car still ran 105mph with one cylinder
under water.
This is a 12 to 1 compression engine and we have been using Hylomar sealant
with a conventional high quality British head gasket with some success.
All of our attempts to seal the head with a solid copper gasket have proved
unsuccessful.
We have contacted Cometic about a multi-layer steel gasket... But no deal.
With an 1800 mile round trip tow to race and gas at over $4.00 per gallon, I
need to eliminate this failure going forward.
Thanks in Advance for your response.
Craig Leinicke
Flashback Racing
www.flashbackracing.com
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