Huddart engines (SBC) oil leak problems

**English Impala** · 28-04-2015 22:01

51 psi at about 4000 rpm which according to what I've now read is about right, the crank (like the rest of the engine) is new so there's no wear groove.

**Stude Star** · 28-04-2015 23:13

Yeah that's about right. If it was at idle then....

**Plumpcars** · 29-04-2015 06:53

If it has a 2 piece/1piece crank seal conversion they can be a pain to keep leak free as the alignment needs to be correct.

**Adey** · 30-04-2015 22:03

2 piece 1 piece conversions are best aligned without the crankshaft in the engine. There is a fixture available for this very job. check the block casting number at the rear of the block, and it should determine weather the engine is a 2 piece or single seal engine, Plumpcars may have hit the nail on the head.

**English Impala** · 01-05-2015 09:57

Thanks for all the information, I have passed it on.

**Holty** · 01-05-2015 13:18

Check that he's running a pcv and engine breather. Mine had the same symptoms until I fitted a pcv valve. This takes away any crankcase pressure which can force oil through the seals, usually the rear seal.
I thought breathers on both valve gear covers would be enough for this but it wasn't on mine.