29-01-2024, 03:46 PM
After a recent engine rebuild (actually it was in June 2019 but whatever) I replaced all the important gaskets on the engine with silicone ones. Despite their effectiveness I was still annoyed with what appeared to be a leak from the valve chest cover. I finally solved it by sealing up the four breather holes and fitting a remote breather, as in Graham's photo, which vents below the n/s chassis rail. What appeared to be a leak at the valve chest was actually oil venting out the breather holes and accumulating at the rear of the block/crankcase interface, above the oil pump core plug. Result. a leak-free engine.
Well, almost.
Well, almost.