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09 piston reset Cox_ba12




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09 piston reset Empty

09 piston reset

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09 piston reset Empty 09 piston reset

Post  mattp51 Fri Dec 11, 2020 2:22 pm

How much play before you must reset? I have an 09 with a fraction of play, almost not noticeable.
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Post  getback Sat Dec 12, 2020 8:23 am

That sounds OK to me , have you ran the engine much ? 0.002 is the correct tolerance some people have been resetting theres before the metal gets hardened from heat . Small Cox Logo
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Post  944_Jim Sat Dec 12, 2020 8:50 am

And watch out for sloppy conrod big-ends...I have a couple of .09 Medallions that I thought had too much ball/socket slop. When In pulled them apart for reset, I found the ball/socket was ok. The big-ends have all the play. Even scoring used piston/cylinder sets (twice now) yielded worn conrods.
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