Put my motor back in my gtr last weekend after a comlete rebuild. I have now done 500 k's and have come across a problem. There are drops of oil forming from the bottom of the bellhousing which im guess is most likely going to be the rear main leaking. Now heres the problem, when i sent the block and crank etc for machining they machined the surface where the rear main seals. He said that there should still be plenty of meat for the seal. When i re assembeled the motor i found that the seal felt very lose over the crank and i thought to my self this is gonna leak for sure, but anyway i took the risk and put it back in the car only to find that it is leaking Its not a huge leak but is only going to get worse once i wound the boost up and the crank case pressures increased.
So now i have been told that i will most likely need to fit a speedy sleeve to the crank. Has anyone ever come across this and had to fit one? Also do they make them to fit an rb26 crank and where can they be bought from? Im unsure how much has been machined off the crank either.
Any help would be good, Cheers