I have finally got around to stripping down the engine that came with my
project car. The P.O told me that his P.O had fitted new liners and
pistons. I took this information with the usual pinch of salt. Now that I
have pulled it all apart it seems to be true. My first clue was no letter
stamping on the top of the liner, and very little in the way of wear or a
ridge at the top of the bore. When I removed the liner I was getting 1/10th
mm difference between the top and bottom of the liner, so I guess these are
fine to re-use. I punched the top of each liner before removing to locate
them for replacement, should I rotate the 90 degrees as the manual suggests
as an option?. The pistons have no makers name, and have four rings with
the bottom oil ring near the base of the piston. They also have a wide
split running across the piston rather than the thin split running at an
angle as on the standard item (no pun intended). Anyone recognize these
pistons. Should I replace the rings as a matter of course, will they be the
same as the items currently available? Both pistons and liners are 83mm
bore and I thought these were not available at this size?. I intend to have
the crank ground and also modified for the later rear oil seal. I believe
there are two types available, any advice here?. What is the standard
method of removing all the crud in the waterways of the block?. Any other
engine re-building advice very welcome.
John Gillis
1954 TR2 TS3618. October 1954 (ground up)
1964 Triumph 3TA 350cc (a little gem)
Trinity College
Dublin,
IRELAND.
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