Hi, I am new to this site and new to land rovers and this is my first v8. (jump first look later!!)

I have just bought a 1995 3.9 V8 Discovery LPG ES and it has a chuffing noise which seems to be coming from the inlet manifold when the engine is running and it gets faster as the revs rise. It only seems to be 1 cylinder.

I assume there is an Inlet manifold gasket under the plenum. Are they easy to change, or could it be something more sinister.

Also while driving the car back there was a large amount of smoke coming from under the car, which then decided to make its way into the cabin through the cup holder. As far as I can tell the engine has had a service not to long ago, and an MOT about a month ago. I cant find any cracks in the exhausts as yet.

The car runs fine on gas or petrol, it drives and pulls as it should. I was wondering if anybody here knows of exhaust gases escaping through the inlet gasket. Ill take the inlet manifold off and have a look if its not to difficult??

Thanks in advance.

Russell.

there is a gasket called a valley gasket, usually noise is exhaust manifold gasket might explain smoke

Many thanks, for the reply, Ill take the exhaust manifolds off at the weekend and have a look. If it is the inlet is it a difficult time consuming job to take all the plenum off?

Thanks in advance.

Id take it back if you've just bough it

If it is chugging I would say it is the either the manifold for the exhaust or the flange on the down pipe to the exhaust manifold which the weld has failed on

Many thanks for all the info. Ill let you all know what the result is.

Russell.