Hi,
I have a 1967 B44R Victor Roadster, which is in good original condition but recently it's spitting just a little smigin' of oil out from somewhere onto the top of the crankcase behind the cylinder block, only when I go for a run and exceed 40 mph. If I don't exceed 40 mph or ride into a wind, it seems to be fine. We don't think it's the gasket because it can achieve 65 mph two-up. We've checked the oil pipes and replaced a leaky oil feed pipe, checked the rocker cover and replaced the oil seal behind the valve lifter cradle and that now seems sound. But I'm still getting this little splash and wonder if it's coming from the breather on the top of the crankcase next to the clutch cable housing. Has anyone come across this please, and managed to fix it. It doesn't discharge much at all, just a splash, but it's a nuisance and embarrassing when you stop at the end of your journey. Someone suggested extending the breather with a small PVC tube to the back but there's not a lot of room to get a pipe around it and that doesn't seem like it's solving anything to me. Any advice please?
Have a look at the breather(pipe) on the top of the inner timing cover just next to where the clutch cable comes through, opposite the dip stick, if its spitting out of here then your motor could be starting to wet sump(not holding the oil back up in the oil tank), if so check oil non return valves, don't quote me as these vary with motors, but 1 poss in from top of inner timing cover and 2nd inside sump plate, check your B44 manual for non return valves. hope this helps.
Hiya. My Victor Special used to create a light splattering behind the engine that I traced to the vapours coming out of the breather stub by the clutch cable abutment. I managed to get an appropriately sized bit of black PVC tube - pneumatic line from work, split the end so it fits the steel stub & secure with a small cable tie in a figure eight around the end of the clutch cable. It now directs any oil misting onto the drive sprocket. Sorted! ;) Good luck with yours!