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Joined: Nov 2003
Posts: 7
Grease Monkey
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OP
Grease Monkey
Joined: Nov 2003
Posts: 7 |
I am restoring a 1927 1 ton truck engine.
The crankshaft journals have been cleaned up. All of the babbitt bearings are in good shape but I noticed that one of the rod bearings has a hairline crack going between the oil journals, about 1/4". It is only in the babbitt material and does not go all the way to the edges. Do you think it would be acceptable to use?
scott walker
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
Hi Scott, Assuming all the other characteristics are within specifications the rod can be re-used with complete confidence. You may find it interesting to go browse around HERE. 
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Joined: Nov 2003
Posts: 7
Grease Monkey
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OP
Grease Monkey
Joined: Nov 2003
Posts: 7 |
Thanks for the speedy response on re-using the cracked bearing. I read thru the posting you suggested on 'here' and it was very informative. I have had a local machine shop bore out the cylinders and purchased pistons from Egge. The machine shop cleaned up the crank. I had a spare rod to use just in case--but the babbitt bearing is not tight against the rod cap and was not sure if that would be acceptable or worse than using a bearing that is cracked. Is there a way of tightening down the bearing to the cap?
scott walker
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
No, I would not recommend that. It should be repored as there is no way to insure a consistent clearance.
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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