[TR] TR3 knock.....

Kevin Thompson kthompson at whoi.edu
Fri May 16 11:09:04 MDT 2008


Greetings folks,
    I'm hoping for a bit of help on my just-done '59 TR3A. This was a 
project in boxes I bought a few years ago, in which the motor had 
already been rebuilt about 10 years ago, but never put back into the 
car. The car's now finished, sort of, except for the knocking sound.....
  Oil pressure is fine- 40 psi at hot idle, and 60 psi at cruise.
  Once the car's warmed up I get a slight knocking at low idle. None on 
acceleration or at cruising speed.
I pull the number 1 plug when running and the noise lowers somewhat. Not 
gone, but less......
 I'm leaning towards either a faulty wrist pin on #1 piston as freinds 
have mentioned, or perhaps a bad lifter.
 Any opinions on the lifter idea??
  Also, are wrist pins and clips available separately?? I saw no listing 
on Moss or TRF websites.....unless I buy an entire piston set.
  All opinions from the collective wisdom of list gurus will be 
considered...
 Thanks a gazillion!!!
 Kevin T
still cold and wet on Cape Cod, Ma.
'59 TR3A
'76 TR6


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