Erik,
No worries on using the earlier block. I had to go through something
similar on my car when I had to research compatability issues. (I used
early block with later head) Your PI head will mate to it just fine, but
use the early head gasket.
Check the length of your push rods. The early PI used a different length
than later PI's and all carb engines. Might be cause of both rockers
failing (how weird).
Dave
San Diego
1970 TR6 PI RHD CP51649
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erik.quackenbush@scala.com on 11/04/97 12:28:17 PM
Please respond to erik.quackenbush@scala.com
To: triumphs@autox.team.net
cc: (bcc: David J Stauffacher/TMG/CSC)
Subject: TR-6 engine rebuild
OK, the saga of the thrown rod continues. ;O
I bought a decent used engine from Triumph Rescue which I plan to use as
the basis for my rebuild (good compression & thrust washers). I had planned
to use my old head since it has been shaved to give 10:1 compression (this
is a PI TR6). I pulled the valve cover last night and found that the two
rocker arms for the #3 cylinder were broken off <sigh>. Now I need to find
a good machine shop in the Philadelphia (Chester County?) area who can
magnaflux the head for me, check the two pushrods for straightness, and
maybe even balance the rods (is it worth reworking old rods?). Any
suggestions here?
My other concern is the new block- it is an older "non-recessed" TR-6
engine block; CC55 something. The damaged original block (CF something) has
the recesses in it. Is this just a matter of using a different head gasket
or do the head and block have to be matched? I already bought the wrong
gasket set from TRF; can I just remove the rings or should I exchange it?
Thanks,
-Erik
--
Erik Quackenbush N3ZVC, IC Engineering Manager, Scala R & D
1-610-363-3343 mailto:erik.quackenbush@scala.com http://www.scala.com
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