Hi, Bill
Sorry but can't answer that query on piston size as I don't and
never have owned
a TR that required such an engine rebuild.
If it's any help,
which I know it isn't :) I did rebuild my Ferguson tractor
engine with 2138
sleeves and pistons and they were a matching set. Must admit I
was concerned
about conrod suitability but it just bolted straight up and I had
an
immediate increase of cubic capacity from 1850 to 2138cc. From a performance
angle, I can tell you that once we'd done a break-in by ploughing quite a
large
field which took a week of my leisure time, I could do 15 amps on the
level
(instead of downhill as previously) and with a rebuilt hydraulic pump,
I could
easily lift six full churns of milk on the rear linkage instead of
four.
But, I have to remember that such esoteric recollections don't really
apply to
sports cars with basically the same engine - though you certainly
can't pull
five tons of hay on a trailer with any TR fro 20TS to a TR8 which
I personally
feel is rather a shame.
Jonmac
________________________________
From: "wbeech@flash.net" <wbeech@flash.net>
To: John Macartney <macartney.john@yahoo.co.uk>; terryrs@comcast.net;
triumphs@autox.team.net
Sent: Thu, 22 July, 2010 15:49:54
Subject: RE: [TR] TR
Engine Blocks
John,
Is the 2138cc you quote using 86mm or 87mm pistons and
sleeves? And yes,
they are readily available in the US.
Thx,
Bill
-----Original Message-----
From: triumphs-bounces@autox.team.net
[mailto:triumphs-bounces@autox.team.net] On Behalf Of John Macartney
Sent:
Thursday, July 22, 2010 4:58 AM
To: terryrs@comcast.net;
triumphs@autox.team.net
Subject: Re: [TR] TR Engine Blocks
Can't really see
the point of reboring an old sleeve - though it can be
done.
Best option is to
obtain a matching piston and sleeve set with all the
necessary seals. That way
you can take a 1991cc engine up to 2138cc. Don't
know their availability in
the US - but no problem in the UK. Would be
surprised if the block is damaged
unless it froze over many times during
storage. Those blocks can take some
'hammer' - even at -40deg and no
anti-freeze
Jonmac
________________________________
From:
"terryrs@comcast.net"
<terryrs@comcast.net>
To: triumphs@autox.team.net
Sent:
Thu, 22 July, 2010
1:24:57
Subject: [TR] TR Engine Blocks
General restoration
question:
I
first found my "barnfind" '59 TR3A in a shed in Osinnee, NY for $500 back
in
about 2001. It had sat there since 1975.
It was a $500 car, no
question.
Anyway, it was so rusty, the only reason I wound up taking a chance on the
frame being solid was a) you could get all the parts for it, but also
b) I
found out
it had wetliners, so the car could be 100% restored to new (except
for the
crank).
Question: Most antique LBCs, like MGA's, anyway,had solid
blocks. You can
bore them to what, .003 over before running into trouble with
too thin
walls? So what do restorers do with cars they pick up, begin a
restoration,
and find the block is shot. Are there aftermarket new blocks, or
do
machines put in somekind of custome sleeve to build the cylinder back up?
Just curious.
Terry Smith, '59 TR3A
New Hampshire
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