toyo321

Took the boat out this weekend and blew the rear crank seal. The oil was all over the place near the starter and in the flywheel area. I haven't gotten the engine out yet but this is a Gen VI BBC 502 and the seal was in there when I bought the engine, but it did not show any signs of leaking. Also I am running a HV Melling oil pump 10778 that is rated a 75PSI with the default spring. I am wondering if this contributed more to the blowing out of the seal. It had a stock oil pump in there prior.

I know about this one piece seal and the problems with other manufactures have them leak even after just being replaced with a new one. So I want to get the best one to go in there. GM or other.

Any info would be greatly appeciated.

ezstriper

I have not seen a bunch of issues with the one piece seal...was it a new engine ? ck rear cam plugs when you get it out...I bought a engine once that the guy put the 2 screw in oil galley plugs with the holes drilled in them that were supposed to be behind the timing gear in the rear, then painted over them...held for a short time then I had one hell of a oil leak...

toyo321

No the engine was not "New" but just redone this past year when I bought it. We looked over everything when we had it dissasembled on the engine stand and everything looked good in the back of the engine. But now when I get it out I will put it on the stand and run the oil pump with a electric drill to find the leak with some dye in the oil. I don't want to pull this agian. It took long enough to get it in the boat this year and weekends are flying by right now.

Randy Nielsen

iTrader: (4)

If you find the seal actually blew out I would be looking into blowby issues. Randy