Wollfen
Old Man with a Hat
Hey all, I have been pulling down my 440 here and have the steel crank out, it has beautiful rod journals needing only a polish, but all the main bearing journals are scored. That will have me checking the oil supply to the mains by the common route. I phoned around and found out it will cost me $125 to grind just the mains on this crank, ouch. But I figured it would cost more to do them all.
I decided to pull another crank out I have in a spare 440 and the crank is good! So Im going to use that for now after a polish, now I decided to check the bearings and see what size they are. The conrod bearings are Clevite 77's and read like this,
1st line - CB 527 P
2nd line - 0.01
3rd line - 8 75
I'm figuring the 0.01 suggests these may be 10 thou over bearings? Am I right? Usually the oversize designation would come with a "-" after the CB 527 P like this, CB 527 P-10, but seeing the 0.01 below made me hesitate. I just need clarification.
On the main bearings they read like this,
Clevite Micro
1st line - 9 75
2nd line - UPPER/LOWER
3rd line - MB 1883 M
These appear to be standard too, but I figured I'd check with you guys. Its been 20 years since I used a Clevite bearings.
Thanks in advance!
I decided to pull another crank out I have in a spare 440 and the crank is good! So Im going to use that for now after a polish, now I decided to check the bearings and see what size they are. The conrod bearings are Clevite 77's and read like this,
1st line - CB 527 P
2nd line - 0.01
3rd line - 8 75
I'm figuring the 0.01 suggests these may be 10 thou over bearings? Am I right? Usually the oversize designation would come with a "-" after the CB 527 P like this, CB 527 P-10, but seeing the 0.01 below made me hesitate. I just need clarification.
On the main bearings they read like this,
Clevite Micro
1st line - 9 75
2nd line - UPPER/LOWER
3rd line - MB 1883 M
These appear to be standard too, but I figured I'd check with you guys. Its been 20 years since I used a Clevite bearings.
Thanks in advance!