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Hawke519 · April 28th, 2012, 18:14

Hey guys hopefully someone can help me out. I recently changed my cylinder,piston, piston head and cylinder head. The gear box was re shimmed and once it was all back together I have gone from 27 rps to 19 rps.

The gear box doesnt seemed to be shimmed to tight it spins perfectly when the piston is out. It probably does about 3-4 revolutions when the case is together if you try to spin it. Do king arms need to be shimmed looser then other gearboxes or something? I just cant seem to figure out how I'm losing 8 rps.

Thanks

April 28th, 2012, 18:14	#1
Hawke519 93tsi Trader rating Join Date: Aug 2011	king arms m4 big rps loss Hey guys hopefully someone can help me out. I recently changed my cylinder,piston, piston head and cylinder head. The gear box was re shimmed and once it was all back together I have gone from 27 rps to 19 rps. The gear box doesnt seemed to be shimmed to tight it spins perfectly when the piston is out. It probably does about 3-4 revolutions when the case is together if you try to spin it. Do king arms need to be shimmed looser then other gearboxes or something? I just cant seem to figure out how I'm losing 8 rps. Thanks