Cracked Exhaust Manifold.

[Ext User(Jeremy Miller)]

I have a very poor running M110 in my '77 Mercedes 280E.Cannot be driven
more than 5kph.
I've been checking everything in the Fuel System(K-Jetronic)Injection.
And today I have just found a Decent size crack in the Exhaust Manifold
where the front and Rear manifold merge into 1 pipe.

Could this be my problem? Rough idling,Sputtering,Will not Rev, Stalling?

Would the Crack cause the engine to run Lean/Rich?


Thanks Jeremy

[Ext User(John_H)]

Jeremy Miller wrote:

>I have a very poor running M110 in my '77 Mercedes 280E.Cannot be driven
>more than 5kph.
>I've been checking everything in the Fuel System(K-Jetronic)Injection.
>And today I have just found a Decent size crack in the Exhaust Manifold
>where the front and Rear manifold merge into 1 pipe.
>
>Could this be my problem? Rough idling,Sputtering,Will not Rev, Stalling?

Check the fuel pressure if you haven't already done so.

>
>Would the Crack cause the engine to run Lean/Rich?

Nope. Since it doesn't have a lambda sensor nothing on the exhaust
side (other than a blockage) can affect the mixture.

--
John H

[Ext User(grumpy@mailinator.com)]

On Sun, 02 Oct 2005 07:21:04 GMT, "Jeremy Miller" <jm4221@bigpond.net.au> wrote:

> I have a very poor running M110 in my '77 Mercedes 280E.Cannot be driven
> more than 5kph.
> I've been checking everything in the Fuel System(K-Jetronic)Injection.
> And today I have just found a Decent size crack in the Exhaust Manifold
> where the front and Rear manifold merge into 1 pipe.
>
> Could this be my problem? Rough idling,Sputtering,Will not Rev, Stalling?

Water in fuel?

Buggered spark plugs?

Buggered spark plug leads?

> Would the Crack cause the engine to run Lean/Rich?

No, but see if you can get it welded soon. Cracks tend to spread.