E: Engine Oil leak
- Thread starter Gary Gittleson
- Start date
`Gary my handsome, that is a 5/16" drilling for the oil return suction to the pump, tapped 3/8"Whit-worth thread, I normally replace it with a couple of wraps around of PTFE tape or some kind of silicon rubber and replace it with an Alan type grub screw, easier to get hold of in future.
bananaman.
bananaman.
But the hole has no bottom !!, So it's screwed to just below the surface And pin punched.
Sounds like a couple turns of teflon tape should do the trick, both to stop the leak and to help hold it in place. Thanks, gentlemen. Seems pretty straightforward.
Where would (will?) we be without this forum?
Where would (will?) we be without this forum?
Note that after the 43 odd jears, there might be some debriss....
Getting in the way to seal nicely.
Maybe clean the thread, before screwing in....
Getting in the way to seal nicely.
Maybe clean the thread, before screwing in....
I had a set of cases that were cracked along side the thread. Fortunately spotted whilst still apart and cured by welding and re tapping the hole, just in case it was required to be opened to clean a passageway!
One good reason NOT to use teflon tape...........
It can be a job to get that grub screw out for new sealing. You could try first to clean from outside with brake cleaner and air gun and apply some thin Loctite from outside. It might do the trick , no harm to be done if no success. So if no joy take out the screw , degrease as good as possible and apply some MILD Loctite , the teflon tape is a case of luck as it gets wiped off while turning in the screw. I prefer carefully selected Loctites - once again . . . .
Vic
Vic
Excellent product, Cyberbond, thread sealant in a tube........Also anaerobic so it does set, but not quite as savage as some loctites........I use it all the time, best on fuel taps and everything else on old bikes.........It just happens to be a German product.........
Take out the screw and fit a cap head Allen bolt, it will tighten against the case rather than needing to centre pop it. Use a thread seal. It worked for me. Make sure the thread is the same length as the original. If using a liquid thread seal wait for the threads to be clean and nice and dry from oil.