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[JohnM]

It shouldn't happen to anyone - but my lemon of a 2.6 seems to be weeping oil on the driver's side bank.

Now I asked locally and I'm being told that the plastic covers warp to due the heat (more than the gaskets giving up on their own) and will most likely need replacing (at £56 a pop x4).

I've not heard of this before.

I should add; the breathers and gaskets were supposedly cleaned and changed before I bought this one but I did have the rear crankcase oil seal fail (and since changed) within a hundred or so miles of picking it up end of summer (remember to sunshine?).

Porkies - possible - likely

[Entwood]

It shouldn't happen to anyone - but my lemon of a 2.6 seems to be weeping oil on the driver's side bank.

Now I asked locally and I'm being told that the plastic covers warp to due the heat (more than the gaskets giving up on their own) and will most likely need replacing (at £56 a pop x4).

I've not heard of this before.

I should add; the breathers and gaskets were supposedly cleaned and changed before I bought this one but I did have the rear crankcase oil seal fail (and since changed) within a hundred or so miles of picking it up end of summer (remember to sunshine?).

Porkies - possible - likely

A well rehearsed fallacy.

They "warp" because garage numpties overtorque them stupidly.... they should only be torqued to 8Nm

The Gaskets go for 2 reasons... 1) Breathers not cleaned 2) pattern ones fitted.

It is GM only, clean the breathers annually, use a torque wrench properly.

[pedroMV6]

Complete fallacy (sp?) that the covers warp!
As said, inferior gaskets, overtightening and blocked breathers are the main culprits.

[Martin_1962]

It shouldn't happen to anyone - but my lemon of a 2.6 seems to be weeping oil on the driver's side bank.

Now I asked locally and I'm being told that the plastic covers warp to due the heat (more than the gaskets giving up on their own) and will most likely need replacing (at £56 a pop x4).

I've not heard of this before.

I should add; the breathers and gaskets were supposedly cleaned and changed before I bought this one but I did have the rear crankcase oil seal fail (and since changed) within a hundred or so miles of picking it up end of summer (remember to sunshine?).

Porkies - possible - likely

A well rehearsed fallacy.

They "warp" because garage numpties overtorque them stupidly.... they should only be torqued to 8Nm

The Gaskets go for 2 reasons... 1) Breathers not cleaned 2) pattern ones fitted.

It is GM only, clean the breathers annually, use a torque wrench properly.

3) Harden with age

[feeutfo]

yep, i think you've copped all the BS on this subject in one conversation by the sound of it.

Take the covers off and its easy to see that the internal webs and moulding dont lend them selves to warping, and that tightening the bolts to more than the specified 8nm does nothing nore than crush the plastic cover surrounding the bolt afaict.

As said use genuine gm gaskits from a dealer only.70 sobs and an efternoon should well cover all eventualitys.

[TheBoy]

The warping is a myth to hide shoddy workmanship. Or pattern gaskets (use genuine from dealer. NOT so-call genuine that Autovaux sell, lying bastards).

And the final BS, there are only 2 cam covers, not 4

[Marks DTM Calib]

John, pop it over one evening and we can change them, I cna get the parts at cost to

[chuftsmv6]

hi there i had that problem a few times every 300miles it kept leaking i took it back three times under the waranty  but eventually replaced it my self with genuine parts the problem ended up being the little rubber washers were missing that go on the rocker cover bolts i t didnt leak again and ive done about 20000 miles since i thing they come as a seperate part thow from the rocker gaskets kits if i remember correctly

[JohnM]

John, pop it over one evening and we can change them, I cna get the parts at cost to

Will do, thanks.  Digging out numbers right now.
- note above, does seem wet through one of the torx bolts.

[TheBoy]

John, pop it over one evening and we can change them, I cna get the parts at cost to

Still feel guilty about sawing through his water bottle

[JohnM]

Not called for !!!!    

[TheBoy]

Not called for !!!!    

(Hopefully) he knows I say that in jest

I shall never forget that day, look on his face, brilliant.  Even the mighty Mr DTM can make mistakes


(not many, admittedly, so I have to get my ribbing in whenever possible )