[Fot] Cylinder Head

[Joe Curry]

That is exactly my own thought.  It all depends on the gasket.  My first
hint of this was when I opened a NOS head gasket for a Spitfire engine and a
little slip of paper fell out.  It stated that after initial installation
and first running up to operating temperature, the head needs to be
re-torqued while still hot.  I have followed this ever since and have never
had a head gasket failure.

Joe C.

-----Original Message-----
From: Fot [mailto:fot-bounces at autox.team.net] On Behalf Of
gasket.works at gte.net
Sent: Tuesday, December 02, 2014 10:45 AM
To: Mike Munson; Allen Washatko
Cc: FOT
Subject: Re: [Fot] Cylinder Head

Re-torquing would be needed if the gasket you are using has "creep".  I.E.
Might be "Spongy" due to gasses within the fibers.  So, as motor heats up
the internal pockets of gas will expand and might escape. This De-gassing
effect will loose a small amount of its original volume.  So, when cool the
gasket would have  shrunk somewhat. Hence, the axial clamping load has
changed and original "torque" is effected.  

 A solid gasket without these pockets would not suffer this way. 


 
Sent via BlackBerry from T-Mobile

-----Original Message-----
From: Mike Munson <fasttrs at yahoo.com>
Sender: "Fot" <fot-bounces at autox.team.net>
Date: Tue, 02 Dec 2014 10:11:40 
To: Allen Washatko<awashatko at wi.rr.com>
Cc: Friends of Triumph<fot at autox.team.net>
Subject: Re: [Fot] Cylinder Head

I do, and will get a little movement out of 3 to 5 each time.

Mike Munson
#28 EP TR6


> On Dec 1, 2014, at 9:08 PM, Allen Washatko <awashatko at wi.rr.com> wrote:
>
> FoT,
>
> I was asked if I re-torque the cylinder head on my TR6 after an
> initial break-in period. Never have. ARP doesn't recommend it.
>
> Thoughts?
>
> Thanks,
>
> Allen
>
> Allen & Jody Washatko
> 1971 TR6  - Number 6
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