Col wrote:

Did the TDV8 not have a issue with warping the exhaust manifold and snapping some studs that caused something like that. Just have a vague re-collection of reading something to that effect.

Cheers
Col

If the stud has broken the manifold will be warped. No one can say for definate which happens first, but the result is always the same.

I had this only recently and had both manifolds replaced. Only place for new manifolds is LR, cost for these alone was £1,627.34 including VAT!

My indie got in a specialist with a fancy tool for removing the studs with the engine in situ, but the body was off.

Dave 2010 3.6 TDV8 HSE (Gone)
2011 Discovery 4 Commercial SDV6 (Gone)
1980 OBLIC 4.0ltr Range Rover (went a long time ago)

I wouldn't like to try drilling the studs without lifting the body

For a start, the turbos have to come off to remove the manifolds, and even with the body out the way, access still isn't great

However, out local engineering place skins the manifolds for us. Expensive for what it is, but hugely cheaper than a new manifold. Logic says that if the manifold has already warped, it won't warp again

Hi all, thought I’d update you all on my success.
pretty pleased with myself as I have managed to change 3 studs and drill out, tap and heli-coil the problem broken one.
All of this was achieved through the N/S wheel arch. By removing, wheel, top wishbone, 3 heat shields, suspension potentiometer and pulling brake lines/sensor cables to one side.
I used hex head drills mounted through a 110 degree angled drill adapter, powered by a rechargeable drill to drill out the the broken one. I first used an easy out which didn’t really do a lot, other than to lead me to think that it would snap any time. So I drilled the sud out in various stages going up a size each time. Fortunately I got it dead centre by fist using self centring drills.
Eventually I got to M8 which is the size of the stud. I managed to pick most of the remaining thread out, but by now had gone slightly off center. Trying the new stud I was not entirely happy so I drilled and heli-coiled it back to m8. Nice snug fit I was confident and removed the adjacent studs and fitted new. All was torqued down and it’s now back to its old self.
I was a little concerned that the manifold might have warped, so on advise from a friend I heated it to a dull red between the ports before torquing down. His thinking was if it was warped it would allow it to be pulled back into place, if not no harm done. It seams at the moment (50 miles) he was right.
All this took 7 hours split over Sat & Sun. if it holds its saved me a body lift at a workshop, if not it’s back to the drawing board.
Nothing ventured nothing gained!!
😃😃

Well done Poco. Sounds a great fix. Fingers crossed that it holds and lasts...  Robin
2008 Range Rover Sport TDV8
Gone:
Jaguar S-Type V8 4.2 Sport
MGZTT 190 2.5

Hi all, thought I’d just let you know that 12 months later, the afore mentioned fix is still holding good.

Result!  Robin
2008 Range Rover Sport TDV8
Gone:
Jaguar S-Type V8 4.2 Sport
MGZTT 190 2.5

👍🏽👍🏽👍🏽