Cracked exhaust manifold

Reply Subscribe

Thread Tools

Search this Thread

01-08-2012, 12:02 PM

#16

Programbo

CF Veteran

Join Date: Jan 2009

Location: Baltimore, Maryland

Posts: 1,964

Likes: 0

Received 6 Likes on 6 Posts

Year: 1994 1993

Model: Cherokee

Engine: 4.0

Those things seem sure to crack. I went to the junkyards once looking for a good one for my neices bfs GC and had to look at 7-8 of them before I found one that didn't have a crack in it.

Reply Like

01-08-2012, 12:11 PM

#17

hankthetank

CF Veteran

Join Date: Nov 2011

Location: Edmonton

Posts: 2,322

Likes: 0

Received 1 Like on 1 Post

Year: 1990

Model: Cherokee

Engine: 4.0

They crack because the head stretches as it heats up. Not because they need a flex pipe...the aftermarket manifold above proves this. It's got two bellows, and the flange is split in the middle...

Reply Like

09-15-2016, 06:50 PM

#18

fireman8042

Newbie

Join Date: Sep 2016

Posts: 1

Likes: 0

Received 0 Likes on 0 Posts

Year: 2001

Model: Cherokee

Engine: 4.0

The link for the exhaust manifold you got is no longer active. Does anyone know the brand so I can get one that's gonna last for my 2001 XJ?

Reply Like

09-16-2016, 05:06 AM

#19

Orlo

Seasoned Member

Join Date: Nov 2014

Posts: 360

Likes: 0

Received 5 Likes on 4 Posts

Model: Cherokee

Quote:

Originally Posted by hankthetank

They crack because the head stretches as it heats up. Not because they need a flex pipe...the aftermarket manifold above proves this. It's got two bellows, and the flange is split in the middle...

That's the first time I've heard a plausible explanation for what appear to be strange placements of those bellows to a rigid mounting point.

Now it all makes sense........