I'll try this again, my reply had too much text.
The manufacturers will call out a recommended clearance, but that's all it is.
The operating speed, temperatures, cooling systems etc all are variables.
Generally the harder it is run, the more clearance it needs.
Also pistons can scuff during warm-up, under certain conditions, so it's a
good thing to get it up to temp before flogging it hard.
Glen
-----Original Message-----
From: Mike Moore <mmoore@wave1.net>
To: 'fubog1' <fubog1@aol.com>; jhhasty <jhhasty@gdhs.com>; tr4racing
<tr4racing@googlemail.com>; fot <fot@autox.team.net>
Sent: Tue, Sep 11, 2012 1:06 pm
Subject: RE: [Fot] Never be beaten by equipment
As an inexperienced newcomer with my TR4 next year, (I never heard of piston
skirts scuffing the cylinder liners, at least not in my stock TR4), it would
seem to me that we should have the Kastner Cup as the first race of season,
there may not be many engines running by end of season!
I knew vintage racing would have its share of breakdowns, but you guys are
scaring the hell out of me!
Mike Moore
62 TR4
-----Original Message-----
From: fot-bounces@autox.team.net [mailto:fot-bounces@autox.team.net] On
Behalf Of fubog1
Sent: Tuesday, September 11, 2012 11:50 AM
To: jhhasty@gdhs.com; tr4racing@googlemail.com; fot@autox.team.net
Subject: Re: [Fot] Never be beaten by equipment
2.5 is not enough.
As Chris has said, the wet-liner engines need more.
I set them to at least 3 1/2 thou.
Glen
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