Engine Builder tip needed

GKR · Feb 15, 2012

I am installing a PMS fix kit with the Wiseco pistons in my Dragon. One question I have is when installing the kit, what is the ideal target spec for wall clearance and ring end gap. As it stands now I have 0.0040-0.0045" on wall clearance and dead on 0.019" ring end gap. This is right at the minimum spec on both. The wall clearance I'm happy with but the ring end gap is recommended at 0.019-0.028", am I better to be in the middle of the range or on the tight end? Some opinions please. I will leave it right at 0.019" if that is the best option. Seems to me it would be.

philsummers21 · Feb 15, 2012

Everything sounds good. Just make sure to let the engine warm up before crackin her open. Of course should do this no matter what engine.

akrevrider · Feb 15, 2012

Fx Kit: Specs on piston to wall & ring end gap

I installed new 2009 cylinders along with the Fix Kit. The pistons both had 005" clearance and the ring end gap was spot on at .020"

akrevrider

jim9006 · Feb 16, 2012

akrevrider said:
I installed new 2009 cylinders along with the Fix Kit. The pistons both had 005" clearance and the ring end gap was spot on at .020"

akrevrider

Same here... Note: use a very light coat of yamabond on both sides of the spacer and block, cylender (2 gaskets, one on each side of the spacer).

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Engine Builder tip needed

GKR

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philsummers21

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akrevrider

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jim9006

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