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#46757 06/23/2005 3:16 AM | Joined: Dec 2004 Posts: 91 Wrench Fetcher | | Wrench Fetcher Joined: Dec 2004 Posts: 91 | I'm No mechanic so I am asking this question for the guy who is rebuilding my 235. Is it nessesary to use shims on the crank for a 1957 235? Or is it better to have a process called line boring done which would eliminate the need for the shims but would cost $150.00. The young lad that is doing the rebuild says that shims are a primative method. I don't really know myself but would really appreciate any advice on either method. Thankyou.. | | |
#46758 06/23/2005 3:38 AM | Joined: Jul 2003 Posts: 132 'Bolter | | 'Bolter Joined: Jul 2003 Posts: 132 | The reasons for line boring and the reasons for using shims are totally different. '57 235s did not have shims from the factory as the machining was precise enough to use modern bearings.
Any 'tight spots' when turning the crank or a too loose or too tight bearing are due to a warped block (needs line boring) or a crooked (or missized) crank. These can usually be straightened by a machine shop. | | |
#46759 06/23/2005 5:30 PM | Joined: Jul 2000 Posts: 53 Shop Shark | | Shop Shark Joined: Jul 2000 Posts: 53 | A good machine shop should be able to give you the correct clearances so that you shouldn't need the shims.
How did all this sawdust get under the hood? | | |
#46760 06/23/2005 9:53 PM | Joined: Dec 2004 Posts: 91 Wrench Fetcher | | Wrench Fetcher Joined: Dec 2004 Posts: 91 | Thanks Fellas; I think the reason he was curious was that the master rebuild kit that we had purchased included shims. Don't know why if they were not used in 1957. | | |
#46761 06/24/2005 1:53 AM | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | Iirc, the shims were discontinued in early 54.
Fred
52 3600
69 C-10
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