I'm sure someone will correct me if I'm wrong but weren't all Vangard motors
85mm bore, I thought the 83mm was a down size to allow racing the TR's in the
under 2.0 liter classes.
Doug Hamilton
1960 Triumph TR3A
1963 Fiat Cabriolet
Date: Mon, 18 Mar 2002 18:16:27 +0000
From: jgillis <jgillis@tcd.ie>
Subject: TR liner/piston worry
While reading Roger Williams new book on the TR4 I noted a comment
he made about four ring pistons: " you should treat with suspicion any
83mm pistons you are offered at an autojumble, for example, since they
are likely to be ex-MOD Standard Vanguard equipment. In particular, watch
out for and avoid any 4-ring pistons, as these will almost certainly be
Vanguard low-technology gear....". This worries me as my project TR2
engine was fitted with a set of liners and pistons in very good order, which
were 83mm, which I wanted, and both liners and pistons were marked
AE. The pistons are 4-ring, but one ring is near the bottom of the piston.
The diagrams I have seen of Vanguard pistons has all 4 rings at the top.
Should I discard my set?, are these Vanguard items?, or does anyone
know where they may have come from. There seems be too little wear in
comparison to the rest of the engine, crank etc for them to be the original
items. All wisdom welcome
John
1954 TR2
John Gillis
1954 TR2
1972 Triumph T100 P
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