Harold Bawlzangya Racing

220 KIPS bore clean-up

It is not uncommon for some excess plating to buildup inside the bore of the KIPS system when the cylinder gets replated.  The left side isn’t a problem, but the right side that uses the o-ring on the exhaust rod can cause binding.  Removing the o-ring is not the proper fix.

I kept the old o-ring on and tested the cylinder to see how much resistance was on the rod.  I didn’t want to tear up the new o-ring.

220borecleanup (2)

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Not too bad, but it could be better.  Featuring the HBR Power Valve Bore Resurfacer, or HBR-PVBR for short.  Made from the highest quality materials, machined to the tightest of tolerances:

220borecleanup (3)

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I started with some 320 grit wet/dry sandpaper:

220borecleanup (4)

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220borecleanup (6)

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220borecleanup (5)

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220borecleanup (1)

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I moved the HBR-PVBR in and out of the bore several times while running the drill.  I checked the exhaust rod for proper operation.  I finished the process with 400 grit wet/dry sandpaper.   The rod moves smoothly with no hang-ups or unnecessary resistance.

 

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