manifold leak

[terrywilliams]

i have what sounds like an exhaust leak only it seems to be coming from the manifold area. Unable to detect any visable faults with manifold in situ. Wondered if anybody has had same problem, autosleeper ravenna petrol, year 2000 >:-(

[Guest Tracker]

Suspect blown gasket and/or leaky manifold to exhaust joint first and porous or cracked manifold second.

 

Gaskets are cheap enough and fitting them is a bit tedious as access is difficult but as the manifold will have to come off that will be as good a time as any to check it properly.

 

Needless to say clean and undistorted jointing surfaces are a must for any joint to seal properly.

 

Try blocking the tail pipe to increase back pressure which might help identify the leak?

[gordonaldson]

If you've not got a gas leak spray can, mix some soapy water in a garden spray vessel and spray your manifold when your cold engine starts up, (for obvious reasons).

If you've got a blow you will see bubbles.

But beware that oxygen/air getting into your exhaust system can cause running problems. Thats if you've an oxygen senson that is. Code numbers here again. Aaaahh.

Petrol engine in a 2000 ?? Motorhome, thats a new one.

Seal it, yes, ASAP.

Gordy.

 

[Keithl]

gordonaldson - 2010-07-17 9:48 PM

Petrol engine in a 2000 ?? Motorhome, thats a new one.

Gordy.

 

Gordon,

 

Slightly O/T but my sister also has an Autosleeper with a petrol engine. Although this time it's a 2001 on a Talbot chassis. I'm not quite sure what engine it is or what else it was fitted to.

 

Keith.

[Dave Newell]

Keithl - 2010-07-17 11:33 PM

 

gordonaldson - 2010-07-17 9:48 PM

Petrol engine in a 2000 ?? Motorhome, thats a new one.

Gordy.

 

Gordon,

 

Slightly O/T but my sister also has an Autosleeper with a petrol engine. Although this time it's a 2001 on a Talbot chassis. I'm not quite sure what engine it is or what else it was fitted to.

 

Keith.

 

Hi Keith, I doubt very much if your sister has a 2001 registered Talbot with a petrol engine as the Talbot brand was dropped in 1994. It might be a Peugeot with a petrol engine though.

 

D.

[terrywilliams]

thanks tracker ,your suggestions taken on board.

[terrywilliams]

thanks for your help and ideas, yes definitly 2ltr petrol

[747]

Follow the advice to pinpoint the leak.

 

If it is a manifold problem, then it is not a cheap problem.

 

There is always the possibility that the exhaust pipe close to the engine has a split, or the pipe connection to the manifold has developed a leak. These faults are more easily (and cheaply) fixed. The extreme low temperatures of last winter have caused havoc with exhausts.

 

 

[terrywilliams]

thanks for help 747,sounds like it is the manifold. No leaks from exhaust, so it looks like i will have to bite the bullet and remove the manifold for closer inspection.