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[vauxsky]

Hi, I have looked on the forum for any info on changing the Exhaust Manifold Gasket, mine appears to be blowing on the near side - driver only. Are there any guidelines for changing these or is it common sense and streight forward.

vauxsky

[Broomies Mate]

Not the easiest job in the world to be honest.  Biggest problem is the manifold studs shearing off. 

[vauxsky]

yes, thats worrying me, would heating them up help to remove them, or is that a no no because of surrounding parts. Would I have enough room to even do that.

Vauxsky

[Broomies Mate]

yes, thats worrying me, would heating them up help to remove them, or is that a no no because of surrounding parts.

Vauxsky

Heating them will be beneficial it will help them unwind from the block as opposed to removing the nut...... the studs are cheap from Vauxhall, so replacing them isn't an issue.

Replacement Brass nuts are a good plan (in my opinion) dont know how others feel about this though!

[Tick Tock]

Not the easiest job in the world to be honest.  Biggest problem is the manifold studs shearing off. 

I'd agree with that, but if your manifold studs are still intact, then it's still a bugger to get at the mating surfaces to make sure they're well cleaned up before fitting new gaskets.

Always make sure you smear some copperslip on the gasket surfaces and threads before tightening everything up again.

[geoffr70]

Not the easiest job in the world to be honest.  Biggest problem is the manifold studs shearing off. 

I'd agree with that, but if your manifold studs are still intact, then it's still a bugger to get at the mating surfaces to make sure they're well cleaned up before fitting new gaskets.

Always make sure you smear some copperslip on the gasket surfaces and threads before tightening everything up again.

TBH when i did my drivers side, all the studs came out easily. I still used all new studs and nuts which I had in anticipation.

The most awkward part i think was undoing the bolts at the rear of the coolant transfer pipe and actually getting the pipe itself out. Lots of wiggling!

[Marks DTM Calib]

Never had studs shear personaly on the V6 (unlike the 4 pots).

Access is not easiest but, its not that bad a job to do, its even been know to be completed in three hours in the middle of a field!

[dad1uk]

Never had studs shear personaly on the V6 (unlike the 4 pots).

Access is not easiest but, its not that bad a job to do, its even been know to be completed in three hours in the middle of a field!

This is an exception!!! But then Mark is an exception!!!

[paulg]

Out of interest, how much are a set of steds & nuts from VX?

[paulg]

Studs!

[JasonH]

These prices are a couple of years old but will give you an idea:

Exhaust downpipe nuts M10 x 2      90570845      approx £1.50 each (have helicoil insert)
Manifold gasket                        24416110            £5.91
Manifold nuts x 7                  11082413            £0.26 each
Manifold studs x 7                  90106924            £0.45 each
Coolant pipe O-ring                  9128362            £1.46
Front pipe gasket                  90499289            £4.55 each
Secondary Air Injection gaskets x 2            90467427            £0.40 each

[paulg]

Cheers for that! not as painfull as I expected!

[cem_devecioglu]

3 hours   our best time was 10 hrs for 2

although I only supply surgery tools