EXPERIENCED advice needed...engine rebuilder...

[qtxdevilz]

about 3 months ago the number 1 bearing spun on me and seized my motor...we got another crank and i sent my rods back to pauter and they cleaned and fixed them...we put them in with calico coated acl bearings...250 hard miles later i noticed oil leaking from behind the timing belt cover...it ended up being the oil pump that was only 3 months old...it was hard to spin but it was not seized...since we had the pan off to replace the front case and oil pump i decided to check the bearings while i was at it...now this is where the real story begins...

number one bearing was really beat up...almost to the point where it was about to spin...the babbitt looked pretty beat up...this is not a picture of my bearings but it looks just as bad if not worse:

http://www.dsmtuners.com/forums/showthread.php?t=189887
&highlight=king

number two bearing looked ok except for a little stripe down the middle...

number three and four were perfect...

my mains were perfect also...they were king bearings...

i ruled out oil starvation because number four would be more beat up if that was the case...

maybe metal in the oil since the oil pump did get a little funny and ate some metal away...but if that was the case then the mains would be messed up also...

maybe knock...but if i knocked that bad...all the bearings would be bad...but in this case number one was really bad...number three and four are perfect...

maybe too hi or too low oil pressure...i did get the oil pressure relief thing ported a little bigger...did i port to much maybe...if it was an oil pressure thing do you think it would only mess up two bearings...

any advice is very appreciated...thanks...

 

[Vans]

do you have a break in procdure when your changing those bearings? prime the oil pump when you assembled it? sorry but it sounds like you are just skipping that stuff and beating on it right away

i built my 2.3 with all oem bearings, and with 12K things are very nice. if you want to know my whole break in and everything i can get into it

 

[qtxdevilz]

do you have a break in procdure when your changing those bearings? prime the oil pump when you assembled it? sorry but it sounds like you are just skipping that stuff and beating on it right away

i built my 2.3 with all oem bearings, and with 12K things are very nice. if you want to know my whole break in and everything i can get into it

yes i prime the pump before starting...and i change oil right after start up...then again like a few miles later...

i know how to break in a motor...

the first time the spun the bearing...it was an oem bearing...