Phil97SVT

I am about 30 minutes from dropping the oil pan, what is the easiest way to check for spun rod and main bearings in an LS1?
Phillip

Phil97SVT

I found out what the little gray rubber particles were in the oil filter....They looked like gray solid rock but looking closer they are rubber. I was dumbfounded when I saw this but after dropping the pan and oil pick up tube I found the rubber oring on the pickup tube was cut in half. :nonod: I guess when I assembled the tube and pump the o-ring must have gotten cut or pinched. One problem found, one problem fixed. :yesnod:
Phillip

kp

Look for a rod cap that looks blue, look for metal sqeezing out of a rod cap. If you dont see anything start removing rod caps and look at the bearings, dont mix them up :)
If you still dont see anything look at the mains.

If you still dont see anything out of the ordinary, look the best you can at the cylinder walls/pistons.

not much else you can do there, make sore and replace the pickup tube o-ring, that can draw some air in..

Phil97SVT

I just pulled #8,7,6 and the bearings look fine/not spun. There is very light scoring line on #7. Should I use some assembly lube when I put them back together? Could the broken oil pump pick up tube oring cause air to get into the oil system and cause tapping or low oil pressure?
Phillip


[Modified by Phil97SVT, 8:28 PM 7/26/2002]

C5Noir

Phil, a busted o-ring for the pick up tube will dramatically decrease your oil pressure. You typically want 10 PSI/1000 RPM. If you're pulling 6500 RPM ranges with low pressure you could starve the motor for oil.

bparker

Sorry for your misfortune - but this is a great thread.. :D

Matt Gruber

remember i asked could the motor be pulled out with a chain hoist?

and you gave me a wise guy answer WHY DO THAT?

now you know why i asked :lol: :D

jmX

So is the motor still in the car? Does the pan just drop off without hitting the crossmember? Maybe this would be a good time to replace the rod bolts....is that possible at this moment? If it is, I'd do it. They are infamous for stretching/breaking at high rpms like a heads/cam car might see.

The oring missing will kill your oil pressure, and maybe a chunk of rubber is what killed your lifter.

rwj383

good question- can the oil pan be removed with motor in the car?

drawbridge oiler

first off, if you have a spun bearing you will see metal flakes and maybe chunks laying in the bottom of your oil pan. if so, grab each rod near the journal and check to see if it's loose. mains are a little different without pulling the caps. usually when one has spun, you will see discolorization and/or metal flakes around the main cap webbing. best of luck. hope this helps. :seeya