90 petrol 2.5

Have any of you ever had a cracked manifold ? and if so what were the symptoms ?

I have just bought one and the guy who sold it to me thought that it had a sticking valve (and it still could be that)

It starts and runs fine and you can rev it fairly hard and it's fine, but put it under load and after a few minutes it runs like a bag of nails at makes about as much noise as gang of panel beaters.

Can you successfully repair a cast manifold?

Can you see a definate crack in the manifold?a might be wrong but am sure a cracked manifold wouldnt sound as ruff as that ?

have you removed rocker cover and checked all valves are opening fully push rods can bend and also punch through follower

jamesmartin said:

have you removed rocker cover and checked all valves are opening fully push rods can bend and also punch through follower

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Have started stripping the front off this morning prior to lifting the engine out so I'll be taking the rocker cover to have a look.