Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > Supersports: SS / SuperSport / Supersport 950 > Cylinder oil leak HELP please

[Red-leader]

After dropping out the engine and changing the O rings on the rear cylinder head its still leaking oil from that area.
Is there any other reason for the leak please ?
I know they all weep a bit but mine is chucking it out. I thought that the O rings would cure the problem.
Its a 91 900ss.
Help Kev !!!!

[Iconic944ss]

Is it deffo the head - or are you spotting the oil deposits on the crankcase top?

If thats the case it could be the oil breather instead.

Only other things I can think of from the top of my head (after a nightshift) - is valve cover / head torque not correct / oil feeds ???

Good luck - Frank

[Edited on 3-4-2006 by Iconic944ss]

[Red-leader]

Its the head, the top 6 cooling fins are dry as a bone.
The one on the joint is wet with oil.
Why should it still leak after changing the O rings ?
Operation went without a hitch. All changed over with no drama.
Is there another answer?
Oil breather was changed a month ago.
Help

[Henners]

Considered a nice VFR ??

[Iconic944ss]

Henners...dont be naughty and go directly to the H*nda forum !!!

Kev, I didnt realise the head is only sealed using the 'O' rings - I honestly thought there was a gasket of some sort on top of the barrel.

Looking at the parts pdf it shows TWO DIFFERENT part numbers for the O rings used - could you have used wrong ones or got them mixed.

Otherwise - I'm stumped and can only think of awful things like distorted head or barrel OR perhaps your oil pressure is running too high for some reason...

CALL FOR SUPER-NELLY !!!!!!!!!!!!!

Sorry - Frank

[Red-leader]

There are two different size O rings. One small one and two large.
Or did you mean two different types ?

[UKRR]

My SS had an oil leak when the cylinder stud snapped - a common faul with early SS engines.
Strengthened studs are available

[Red-leader]

No problems in that department all studs are at the correct torque. Thats what I cant understand, everything is as it should be !

so all your studs are up to the job ??? Mrs Leader will be happy .... shame about the messy leakage though ..... :P

cheers for the cuppa yesterday .....

[Henners]

Sounds like something's warped Kev ...