Dyno Bearing Failure........

[blown 68]

hey folks, just wanted to share, and get some comments on this lovely next chapter of my own living hell... http://forums.maxperformanceinc.com/forums/showthread.php?t=509430&page=2

obviously the thrust surface is an issue, although it went through this way on the other motor fine. also, would like comments on the ' thrust face bearing mod' i've heard about, for additional oil. any insight, advice, critisizing, it's all good, the more the merrier. have at it. pics are at the end of the link........

davey

[Dragncar]

I use the thrust bearing mod as descibed on P Dudes site.Never had a thrust bearing issue.Also in looking at the pics of your engine I noticed you use the oil holes in the main bearings as is.I always drill mine to match the oil feed from one of the lifter gallerys.I want to say it is the passenger side.I just went out in the garage to find one of my old bearings to be sure which side but I could not find it.But it has always worked for me.No spun bearings and no wasted thrust bearings.I have used the same Caddy rear main seal for about 10 years with the crank being pulled and hand polished and new bearings 3 times and it still works fine.

[TnVTX]

Hmmm, looks like I've got another fellow Eagle crank'd bearing eater...
While mine is a tame motor, I feel your pain (twice):(
http://forums.maxperformanceinc.com/forums/showthread.php?t=517303

[blown 68]

Hmmm, looks like I've got another fellow Eagle crank'd bearing eater...
While mine is a tame motor, I feel your pain (twice):(
http://forums.maxperformanceinc.com/forums/showthread.php?t=517303
yes mt friend, i have been watching this one, sorry to hear it as well....... fir what it's worth, this is my fifth attempt to clear up all my issues with this motor..........:D

[Dragncar]

Have you had the thrust bearing surface on the crank polished and went to a wider thrust bearing.ACL sells them.

[70judgeconv]

when i had my engine done we found the brand new eagle crank was bent. Also shop did not like the way the caps were located so redid that as well. Just some other things to look at. Maybe time for a new shop as well. Good luck

[TnVTX]

Delete.

[TnVTX]

I'm wondering is it possible for the Eagle cast crank to have poor metalurgy, and is allowing the crank to flex around when under a hard load, and this in turn beat the bearings out?:confused: