[Tigers] Tiger's 289 Piston to Valve Clearance Check Mistake

Rob Hogan robertdhogan at gmail.com
Tue Jan 23 18:51:34 MST 2018


If approximately a 1 sq. in. small flat of modelling clay is placed (not
near the piston's periphery) where it is in the squish area of the piston
instead of only under the head's combustion pocket, can rotating the
assembled piston and rod cause the piston to cant in the cylinder bore
enough to crack a piston skirt?

Is there any other potential weak area that could be cracked by piston to
head interference with clay in between?

I hesitate to disassemble the engine to search for possible part cracking
if the clay interference is really incapable of causing something to crack.

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