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quick question about checking oil clearance on mains
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cbr900racer
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PostPosted: Sat Sep 08, 2007 4:03 pm    Post subject: quick question about checking oil clearance on mains Reply with quote
I originally asked this question in engine/performance forum but didn't get any bites Confused I'm taking my freshened case to machine shop next week to have them measure ID on main bearings so I can check them against crank specs (the crank is new but of unknown origin so I'm taking precautions).

my question is...can I just torque the main studs or do I have to install and torque EVERY nut and bolt on the case to get proper crush on bearings? I don't mind the extra effort but no sense doing it if it isn't necessary.
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Mark
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PostPosted: Sat Sep 08, 2007 4:18 pm    Post subject: Reply with quote
Only torquing the mains is required.
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GusC2it
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PostPosted: Sat Sep 08, 2007 6:18 pm    Post subject: Reply with quote
Hi , Plastic gauge is commonly used to check bearing clearance, but why bother. Rolling Eyes Mic the crank journals to get the right size and put in new bearings. Gus
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cbr900racer
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PostPosted: Sat Sep 08, 2007 7:15 pm    Post subject: Reply with quote
GusC2it wrote:
Hi , Plastic gauge is commonly used to check bearing clearance, but why bother. Rolling Eyes Mic the crank journals to get the right size and put in new bearings. Gus


Exactly what I am doing. I've used plastigauge for years on bikes, but can't use it on 1 piece bearings. Some people doubt the accuracy of it, but I have yet to have a problem with it. Anyways, thanks for the info, I'll just torque the mains.
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71 Bay (1776 in process)
94 Sonoma
98 Suburban (bike hauler)
97 Blazer
07 Nitro
94 CBR900RR (runs 5.70s 1/8 mile)
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