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Recommended Bearing Clearances

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Old 08-08-2003, 07:35 AM
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Default Recommended Bearing Clearances

What is the recommended bearing clearances for a Nitrous motor? All bearings are coated and STD in size with stock mains, stock crank and lunati pro billet rods. I have .002 on the #1,2,4,5 main caps #3 is a touch above .0015. All rods are .0015. Thx in advance
Old 08-08-2003, 10:40 AM
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Default Re: Recommended Bearing Clearances

if you dont mind me asking, what tool specifically are you using to get these measurements? dial indicator?
Old 08-08-2003, 02:04 PM
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Default Re: Recommended Bearing Clearances

I am using Plastigage for all measurments.
Old 08-12-2003, 05:11 PM
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Default Re: Recommended Bearing Clearances

well, the #3 seems a bit on the tight side, but would probably be fine. what kind of break away Tq does the crank show all torqued to spec?
Old 08-12-2003, 05:31 PM
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Default Re: Recommended Bearing Clearances

My experience with Plastigauge is that it reads a little on the tight side. I would shoot for .002 - .003 on both rods and mains.




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