Good work Chris! Just a note on the Moss alignment mandrel for the rear
seal. It is the wrong diameter, just a bit oversize. It is made of what I
think is Delrin and I had mine turned down to 2.814-2.815 (71.48mm
-71.50mm). Now it is about the correct size. You wrote that you used 2.818
(71.57mm). I've only had to use it once as now that the two halves of the
aluminum "seal" are bolted to the block and cap I've had no reason to remove
them, so far! I would also note that the oil "drain" hole is critical to
the stock seal working correctly and the felt seal on the sides of the cap
are also critical to the sealing of the rear main. I've attached a couple
of Kas's old posts regarding this. I made my punches out of brass, just
easier to machine, and I use 1 inch pieces of the felt seal at a time and
pound them in. I get felt coming out of the gaps on the sides of the cap if
I'm doing it right. I've done the seals 3 times now and I just have a bit
of the weeping that Kas mentions. If anybody wants to borrow my mandrel
contact me off list. As I said you usually only need to align the aluminum
halves once.
Tim Murphy
1961 TR4 #317
-----Original Message-----
From: fot-bounces@autox.team.net [mailto:fot-bounces@autox.team.net] On
Behalf Of MadMarx
Sent: Tuesday, June 08, 2010 9:06 AM
To: fot@autox.team.net
Subject: [Fot] Crank split seal ring TR3/4 - advert
Hi guys,
some of you already know about but I would like to let you know about a new
split seal that I've created to serve three main goals:
1st - a dry crank seal to prevent clutch slickness
2nd - it should be cheap and easy done
3rd - best available material for racing purpose
Starting from this I invented a split seal ring that can be used with the
stock crank without grinding off the scroll.
Only the aluminum ring needs a little rework to make the split seal ring fit
which can be easy done on a lathe for cheap money.
The split seal is made out of Viton and can stand very high revs and also
temperatures.
So this is only for guys who run a stock crank.
So you have two seals, stock and the new split seal to make the rear dry.
Currently I've let made 20 rings which are almost sold out except 3 to
today. If there is interest I could make another run of rings.
You can get the rings from ARE Joe Alexander who will include an installing
kit with the ring if you like (centering tool for the stock aluminum ring).
For further information you can have a look here:
http://www.tr4-racing.de/download/splitseal.pdf
Cheers
Chris
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