Ok guys so finally i got a good motor....

I got a ls6 shortblock it was in good running condition....

I put in a new oil pump thats off the LSA motor Cts-v...

Car started up ran fine except my oil press is at 60 COLD and over 80 at WOT...

After a few runs the rear main was leaking baddd almost pissin

I had put in 10-40 wt oil just to flush the motor ... So i am like ok fine its the heavy oil ... dumped it and put 5-30 Edge ... Same problem....


As of now there are not oil coolers or anything...

Does anyone have a idea ... i am lost..... My next thing is putting in a oil cooler i got... but if that does not do it then idk..

I think the oil press has something to do with the rear main leak ?


Thanks guys

 

did you put the oil pan on first, then the rear cover? . . . might be miss aligned.
Put a little RTV in the bottom corners of the cover too.

 

Wow, I only wish to have good oil pressure, I'm with Tootall check out the alignments and fit then RTV it.

 

Ya i did the alinement and rtv everything ... its leaking from the main seal....

I am gussing its from too much oil press ... what do you guys think ?

 

my oil pressure at idle is 20

 

wrong oil filter will do it too . . .

 

I have a K &N in there ...

which one helps drop psi ?
LOL

 

my oil pressure is 60psi @ idle when cold.... 50psi warmed up and pegged out over 80psi at WOT... it has always been like this

 

You could probably do something like this. Im not sure the oil pressure would cause a rear main leak, the oil in the pan isnt under any pressure I think

link

 

your oil pressure sounds normal to me...