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| | | Forums66 Topics128,157 Posts1,056,878 Members48,458 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Feb 2004 Posts: 29,852 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,852 | I start out with no shims, and snug the bearing caps one at a time to be sure the crankshaft can be locked, or at least made hard to turn by tightening the bolts. Add shims until the crank turns freely, then use the Plastigage to do a final check. Use one piece of Green PG at the top of the crankshaft journal, torque the cap, and remove it without turning the crankshaft. Yes, the bearing and crank needs to be dry. I like to shoot for a bearing clearance of .0015", with .0025" as an absolute maximum. Check and adjust the bearings one at a time. The insert-type bearings don't wear as quickly as the Babbit types do, but getting the clearance down to minimum will make for a longer-lasting engine. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
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Entire Thread
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Bearing Clearance, plastigage & Shims
| Kip's41 | 03/08/2010 2:43 AM |
Re: Bearing Clearance, plastigage & Shims
| Hotrod Lincoln | 03/08/2010 4:06 AM |
Re: Bearing Clearance, plastigage & Shims
| Denny Graham | 03/08/2010 3:52 PM |
Re: Bearing Clearance, plastigage & Shims
| kingisomer | 03/08/2010 5:15 PM |
Re: Bearing Clearance, plastigage & Shims
| Hotrod Lincoln | 03/08/2010 5:48 PM |
Re: Bearing Clearance, plastigage & Shims
| Denny Graham | 03/08/2010 9:27 PM |
Re: Bearing Clearance, plastigage & Shims
| Hotrod Lincoln | 03/08/2010 10:05 PM |
Re: Bearing Clearance, plastigage & Shims
| truckernix | 03/09/2010 1:16 AM |
Re: Bearing Clearance, plastigage & Shims
| Denny Graham | 03/09/2010 1:59 AM |
Re: Bearing Clearance, plastigage & Shims
| Pete52 | 03/09/2010 2:14 AM |
Re: Bearing Clearance, plastigage & Shims
| Kip's41 | 03/09/2010 4:58 PM |
Re: Bearing Clearance, plastigage & Shims
| Kip's41 | 03/21/2010 3:07 AM |
Re: Bearing Clearance, plastigage & Shims
| truckernix | 03/08/2010 9:27 PM |
Re: Bearing Clearance, plastigage & Shims
| Denny Graham | 03/08/2010 9:56 PM | |
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