Thread: TD5 Rocker Cover gasket

Don't know but mine has never leaked. There are groves in some sections and I noticed a lip on other parts of the gasket. Maybe they have been lucky enough to miss one each time?

Mine was fixed twice under warranty. The 2nd time some of that blue sealant was used and seems to have done the job.

I can't see how the bolts can be overtightened as there is a spacer that goes through the gasket at each bolt to prevent overtightening.

I have just rebuilt a TD5 & the VRS gasket set had a different rocker cover gasket to my engine.

The D at the rear was larger on my engine. The new gasket would just cover the D but the locating groves were not in the slots. I had to use the old gasket. So this could be your problem.


Rob

when you put the next one in... place a smear of red gasket sealastic on both sides of the gasket and a tiny smear of vasaline around the top of the head (no lumps just dip your finger in and wipe it over) assemble to contact and let it sit for 10-20 mintues (1 beer) then tigheten to correct settings.

Its how I do the rocker gaskets on the 2.25s and the isuzu 3.9s

rocker cover gaskets are normally fitted dry....ie nothing on them....
except for the "D" rubbers.....these need to be sealed with some sort of sealant.....
such as the blue rtv or silastic designed for this....
the oil will find its way between the edge of the rubber and the gasket if you dont seal this.....


take off your rocker cover......if its only been fitted not too long ago it will still be soft....
clean and seal the "D" rubbers with sealant......and clean also the rocker cover gasket and its mating surfaces.....
and refit it.....it should be ok.....

Originally Posted by trebor110

I have just rebuilt a TD5 & the VRS gasket set had a different rocker cover gasket to my engine.

Early Td5's are different to later ones in a few minor areas. This is one.

Originally Posted by Blknight.aus

let it sit for 10-20 mintues (1 beer) then tigheten to correct settings.

Wouldn't that be 3 beers??

Originally Posted by rjhjstr

Is it possible that the rocker cover is being tightened down too hard ? Would this cause the gasket to distort?

Cheers

Russell

The torque settings for the cover bolts is 9 Nm (7 lb/ft) which is quite light - so I guess there is a chance of overtightening/distorting

And you should put two 'blobs' of sealant (ST 5433) either side of the "D" as you call it. but don't put too much sealant as there is a risk of blocking the oil drain hole just behind the "D"