fot, i'm in the process of disassembling my tr3 vintage racer motor to find
the source of water in the oil and overheating. so far i've found a crack
in the #4 liner (it goes from the top down about 1 1/2" ), the #4 piston
has a slight indentation in the top as if it has contacted the head, the 2
compression rings are broken and the piston is cracked in the area between
the compression ring groves. i think the cracked liner explains the water in
the oil and overheating but, why did it crack? and how are the piston and
ring problems related to the liner crack? the motor is 87mm, 10.5/1 cr,
liners up .005", steel head gasket, and the motor had been running for about 1
yr. thanks for any ideas. ken m.
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