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Re: Crank Q

To: "John Gillis" <jgillis@tcd.ie>
Subject: Re: Crank Q
From: "Irv Korey" <emanteno@ibm.net>
Date: Wed, 16 Dec 1998 07:04:06 -0600
Cc: <triumphs@Autox.Team.Net>
> From: John Gillis <jgillis@tcd.ie>

> Still on the subject of my TR2 engine re-build and thanks to Fred Thomas
> for the only reply to the liner question !!. I have discovered that the
> crank is scrap and below any re-grinding levels on all journals. I will
> need a replacement. Because I intend to fit the later type rear oil seal,
> can I use a good TR4 / 4A crank, which would save on having the scroll
> machined smooth as required on the earlier type ?. It would also improve
my
> chances of locating a sound standard crank which I could have macined if
> necessary for new bearings. Hope for more than one reply thios time????,
> thanks in advance.

John,

The later crank from the TR4 / 4A also requires the scroll to be machined.
I just had it done. Here is a little known tip: when you go to the modern
rear lip seal, the length of the bolts holding the flywheel is critical.
The new bolts currently available (at least in the US) for flywheel
attachment are slightly longer than the original bolts. This extra length
(1/32" I think) is enough to cause interference between these bolts and the
new seal, resulting in an engine that will not turn once the flywheel is
installed. Ask me how I know. Good luck.

Irv Korey
Highland Park, IL
74 TR6 CF22767U
TR4 CT52499 (almost ready vintage racer)



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