Had the primary cover today. Oil seal is completely out, dangling behind the magnet.
The reason I asked if your primary was a breather type way, way, WAY back at the beginning of this thread is because when oil is allowed to transfer from the primary case into the engine, the incidence of oil wet sumping goes WAY up. The reason: clutch debris, which the c/s seal typically keeps out.
So while the engine may have oil wet sumped first, and then blown the seal out. It's also just as likely that the oil seal blew out, then allowed clutch debris into the engine, THEN the engine oil wet sumped.
I'm thinking of buying a rotary oil pump to put this issue to bed forever
If, by "this issue", you mean oil seals blowing out, you should read John Healy's past posts on the subject before you part with your money. If I understand John's posts correctly, the Morgo rotary pump will exacerbate the "issue", as well as bringing a few others of its own. Fwiw, as a long-time triple owner, I too thought a rotary pump on my 500 would be A Good Idea; thankfully, I read John's experience before I parted with my money.
Originally Posted By: aprophet
Originally Posted By: triton thrasher
a filter element with a non-return flap
Are the Map / Triple filters like this what is "the right way " for flow on these ?
The filter cartridges made to fit the compartment in the Triumph and BSA triples' crankcases do not have "a non-return flap" as such. However, certainly on the triples, the oil enters the hole in the centre of one end and flows through the filter itself from the inside out; this way, any filtered matter is held in the centre of the filter - instead of dropping off the outside - when it's removed for replacement.