Isuzu MU oil leak

[gozoish]

Hello everyone,

I am new to the forum. I come from Malta Europe and just rebuilt an ISUZU 4JB1 T engine fitted on my newly acquired 1992 Isuzu MU. I installed the engine in the Mu and all started fine but I am having an oil leak from inside the timing belt cover. I removed the timing belt cover and timing belt and found an oil leak coming form the camshaft oil seal. I again replaced the oil seal, put back everything on and started the engine all was fine, After a 30 mins drive I parked the MU and again a drip of oil was found on the floor. Checked the source and again coming form the camshaft oil seal. I am stuck here not knowing what to do.

Any help would be greatly appreciated.

Thank you all

David

[geeves]

look at the cam for a lip where the seal runs. Try and position the seal so it does not run on the lip. If that fails new cam

[gozoish]

Thank you for your help. The camshaft doesn’t directly run on the oil seal. There is an oil seal holder and a sort of an adapter that goes into the camshaft. I am attaching the drawings. Thank you again. https://photos.app.goo.gl/z3EuNELnGM2VA4s76