AMC Eagle Den Forum

The Mighty 258 => The Engine => Topic started by: JayRamb on August 03, 2012, 11:14:58 PM

Title: cracked exhaust manifold
Post by: JayRamb on August 03, 2012, 11:14:58 PM
I have a cracked exhaust manifold on my 87 Eagle. Has anyone here replaced one on their Eagle 258? I also, am looking for the torque specs for the manifolds. Taking off the intake and exhaust at the same time...anyone with 'look out for's' and 'beware of's' would be welcome.
Title: Re: cracked exhaust manifold
Post by: DaemonForce on August 04, 2012, 02:59:42 AM
Just chiming in that I'm looking to replace my exhaust manifold soon just because a lot of the design is deprecated. I'm looking to use the header from a 4.0L and does this mean going to the 4.0L head in order for this to work?
Title: Re: cracked exhaust manifold
Post by: thereverendbill on August 04, 2012, 06:30:41 AM
when i took the set off the wagon to get blasted and painted i was unable to get the tube that connects the 2 off ither one without damaging that tube .... other than that it is pretty simple and straight forward
Title: Re: cracked exhaust manifold
Post by: eagleman on August 04, 2012, 08:55:18 AM
I just got mine back on. Had to remove to get the new exhaust on. Anyway put in new studs and then took exhaust manifold to a machine shop and had them surface it before I reinstalled it. Found when reinstalling it that it was warped. Took awhile to get it back on and am wondering how long before it cracks. Now I know why both of the end studs were busted off to begin with. So we shall see.Other then that its not to bad.Used a one inch open end wrench and some pb blaster to remove the pipe that connects the two. Just cracked the wrench a couple of times with a hammer and it came loose. Just make sure you lable everything because there is a ton of stuff to remove and you should be fine.