Rocker cover oil leak.

meego

Well-Known Member

Posts

11,930

Location

Caledonia

• Sep 21, 2011

• #1

I renewed my injector harness a while ago, and fitted a new rocker cover gasket in the process. Ever since I have had a slight leak from the rear area of the cover. I,ve tried a bit of Hylomer but still a wee leak. Anyone any idea why this is happening. You cant over tighten the bolts as they bottom out due to the collar on them. Thinking of putting a washer on each bolt and seeing how that goes. Any suggestions?

Edited to say its an 01 TD5:doh:

 

Last edited: Sep 21, 2011

jamesmartin

Well-Known Member

Posts

91,879

Location

louth lincs

• Sep 21, 2011

• #2

dont put a washer on sealant wont work stuck on the outside to stop leak,at the back is a half moon piece in gasket with lips on edges this needs to be felt to ensiure seated correctly

 

P

pat murphy

Active Member

Posts

342

• Sep 21, 2011

• #3

iIf its a new gasket, its not fitted properly you need to take the top & fit again if it has not been pinched out of shape.
If so put a new one on

 

meego

Well-Known Member

Posts

11,930

Location

Caledonia

• Sep 21, 2011

• #4

Cheers guys.

I applied the Hylomer on the gasket the second time I fitted due to leak. But what I have noticed is, the top hat style bush/washer thing with the rubber washer on it, is hitting the top of the block before compressing the gasket. I can see a slight ring mark around the tapped hole. I would swear the gasket is too thin

James. The leak is from the side above the fuel pressure regulator area. Not at the rear as I suggested. Sorry.

 

John FHA

Active Member

Posts

300

Location

Cleveleys, Blackpool

• Sep 22, 2011

• #5

Sure it's your gasket and not your oil return pipe from cyclone unit on side of rocker cover?
Mine became porous and leaked. new one now all clear.

 

meego

Well-Known Member

Posts

11,930

Location

Caledonia

• Sep 22, 2011

• #6

John FHA said:

Sure it's your gasket and not your oil return pipe from cyclone unit on side of rocker cover?
Mine became porous and leaked. new one now all clear.

Click to expand...

Defo the gasket mate. Going to fit a new one and see how it goes. Cheers.

 

jamesmartin

Well-Known Member

Posts

91,879

Location

louth lincs

• Sep 22, 2011

• #7

i would normally silicone sparingly gasket to cover then fit ,it is possible to get poor gasket as with everything nowadays ,i wouldnt use hylomar or non setting sealant ,silicone or similar