Pat - if the number you listed below is correct then it is originally a TR3
motor that was converted to the 4A. The insides may not have been changed
and it is really a 1991cc or it might have been upgraded to the higher cc's
(or somewhere in between). I'll let others who are more familiar with both
models describe the mounting differences.
Carl
-----Original Message-----
From: Pat [mailto:pleask@mailhost.wlc.com]
Sent: Sunday, July 09, 2000 8:03 PM
To: TRlist
Subject: TR3 and TR4 Motors
I have a frozen motor for my 1957 TR3A TS33154 (Project car).
I have a spare motor from my TR4A Parts car (Motor is also is sad shape)
I know that the TR3A motor was 1991cc and the TR4 was 2138cc - correct ? (In
most cases)
The diff in size was the sleeves.. no ?
My question is: How compatible are the two motors if I find something in my
'3 motor is no good ?
TR4 motor number is TS13959E
TR3 motor number is TS81530F
Thanks all !
Pat
PS: You have all been a great bunch and a wealth of information and help..
thanks.
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