Wet sump­ing cause re­vealed

Classic Bike (UK) - - Classic Workshop -

Dave Wade tells me wet sump­ing prob­lems he’s had with a Tri­umph (Fixes Sept 17) were not due to the oil pump. The cause was found to be pis­ton de­bris block­ing the crank­case scav­enge oil­way. The sump fil­ter should pre­vent this but it’s al­ways worth look­ing in the tank to check the oil’s re­turn­ing.

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