A bit of an oil leak...

[types26/36]

......and just another thought, there is a welsh plug (core plug) on the under side of the head also near the petrol pump which can leak or drop out in some extreme cases.

[rgh0]

If you have a leak at the front of the engine - such as front pulley seal or the front cover area then the oil gets blown back and drips off the low points such as the back lip of the sump and the bottom of the bell housing.

Clean up the engine and then run it while stationary for a while and see where it drips from then

cheers
Rohan

[Johnfm]

Cheers

Will do.

But seems pretty dry up there.

*scratches head..

I think I need to run it longer for checking.

I tried the other day and couldn't really see much. But under driving there is a bit more stress.

Probably just need to rev it harder while having a look there.

[Galwaylotus]

Chapman designed it that way. It's called corrosion protection!

[StressCraxx]

Finding oil leaks can be tough.

I found a way to pinpoint leaks in the garage without the engine running. I used 1PSIG compressed air (no more than 1 PSI to avoid pushing the lipseals out of their fits). I plugged the dipstick hole and pressurized the crankcase through the breather hole in the rear of the head.

Then use soapy water in a spray bottle and spray all of the suspected areas. Just a small amount of air pressure will make bubbles at any leak point. I found several leaks this way, The one that had stumped me was the leaking blanking plate on the timing cover for a centrifugal tach drive. I didn't know the blanking plate was there!

Good luck! YMMV.

Regards,
Dan

[jono]

John,

Given all of your other posts about your engine it all points towards biting the bullet and yanking the lump out. It's not the driving season anyway and this will give you the chance to fully evaluate the motor and cure all of these ills, leaving you to enjoy the spring, leak free!

I used to borrow a crane for pulling engines but I have just purchased this bargain 1 tonne crane and an engine leveller:

http://www.sgs-engineering.com/ec1000-1 ... tAod7ggAjA

It's brilliant and only the price of a couple of hires and it folds up nicely in the corner of the workshop when not in use.

Jon

[gjz30075]

That's a lot of oil for a short drive. You might want to do a leakdown test first to determine that there are no broken rings which would create huge internal pressure, forcing the oil out.

Greg