Exhaust manifold removal

[groomvroom]

Need to do my manifold gaskets on my 4.3, its got cats but has the "bolt together" arrangement like the pre cat Griff. Is there a gasket needed for this or do you use a jointing compound of some sort? If it does need a gasket, any suggestions for sourcing some? Any advice on the job would be appreciated.

[TimmyArt]

Have you done it before? Dulford did my 4.0 for £100 each side..no snapped bolts..

[Wicker Man]

Lots of info on here if you do a search.

It's a Landrover part so easy to get, I'd change the bolts too. Pig of a job though due to poor access. Save time by removing the exhaust first!

[groomvroom]

Wicker Man said:

Lots of info on here if you do a search.

It's a Landrover part so easy to get, I'd change the bolts too. Pig of a job though due to poor access. Save time by removing the exhaust first!

Search isnt working, just the google one. Do you mean the manifold to head bolts or the manifold to Y piece ones or both?

[groomvroom]

TimmyArt said:

Have you done it before? Dulford did my 4.0 for £100 each side..no snapped bolts..

Not on a TVR but have on a rover V8 powered Stag, I need to be able to do it my self realy.

[Wicker Man]

groomvroom said:

Do you mean the manifold to head bolts or the manifold to Y piece ones or both?

I just changed the manifold to head bolts (and washers). They tend to corrode badly due to the constant heat cycles etc. Be very careful not to round off the old ones when removing them. It's just not worth trying to refit the old ones when a new set is only a few quids.

I got mine bits from www.tvrcarparts.com though others may be cheaper.

[aaron C. Reskew]

I've got both the round 'Y' piece gaskets and Victor Reinz manifold gaskets if you need any.

I had to get the 'Y' piece gaskets made as they are no longer available.

Email me if i can help.


Ian

[groomvroom]

aaron C. Reskew said:

I've got both the round 'Y' piece gaskets and Victor Reinz manifold gaskets if you need any.

I had to get the 'Y' piece gaskets made as they are no longer available.

Email me if i can help.


Ian

YHM

[theaxe]

Is this any use?

[aaron C. Reskew]

The new gaskets in the picture are standard rubbish!
Good article though. However it is better to fit the ARP stainless bolt set which have smaller heads. The ones in the picture are mild steel which can be bought at any local tool merchant for a few pence.

[snorky]

altho the "standard rubbish" had lasted 7 years ( and is still in the other side) and only failed after serious mistreatment....and I'd be interested how you can tell if they were mild steel bolts (which they weren't) from that piccie...

Edited by snorky on Sunday 15th October 08:42

[victormeldrew]

snorky said:

altho the "standard rubbish" had lasted 7 years ( and is still in the other side) and only failed after serious mistreatment....and I'd be interested how you can tell if they were mild steel bolts (which they weren't) from that piccie...

It's pretty easy to tell they're NOT ARP bolts. The lack of a smaller, shouldered, head is a bit of a giveaway. If the bolts are normal cheapie A2 stainless then you are making a mistake. The BIG advantage of the ARP bolts, in a TVR application, is the smaller head, but the 170,000 lb/ft tensile strength doesn't hurt either.

Regarding the OP, the Y piece joint just needs a little exhaust jointing compound. Oops - yours is a 4.3, sorry. Later cars don't have a gasket (unless the factory missed them out on mine!).

Edited by victormeldrew on Sunday 15th October 09:53

[Aaron C. Reskew]

snorky said:

altho the "standard rubbish" had lasted 7 years ( and is still in the other side) and only failed after serious mistreatment....and I'd be interested how you can tell if they were mild steel bolts (which they weren't) from that piccie...

Edited by snorky on Sunday 15th October 08:42

I took the advice of a well known and respected Rover V8 engine builder some years ago regarding the gaskets.
If you compare the standard crap with a better gasket you will notice two things.
1.The standard gaskets look and feel cheap.
2.They do not fit round the ports properly which causes hot exhaust gasses to blow directly onto them. The gasket fails due to cracking from overheating.

The exhaust bolts looked like BZP mild steel.The standard TVR fitment is mild steel.
The only manifold bolts worth fitting are the ARP ones in my opinion.