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Author Topic: Trouble installing  (Read 1140 times)

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Offline DaemonForce

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Trouble installing
« on: September 18, 2012, 07:30:00 PM »
Does anyone here ever have trouble installing their exhaust header? I can't get the bolt holes on my manifold to line up with the ones on the engine without using some bar to bend the pipe. After that's done I have issues threading the rest of the bolts into place. What am I doing wrong? :/
1983 Limited
AMC 258C {R2:11.Oct.12}
Carter 2681 {R2:28.Oct.12}
TorqueFlite A998 {R6: -20.Apr.12}
NP129 {R2:28.Apr.12}
M35-273 {???}
Compression: 10.5:1
Corrected Idle: 500RPM

Offline eaglefreek

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Re: Trouble installing
« Reply #1 on: September 19, 2012, 06:31:52 AM »
Unfortunately, it's quite common with many engines from the heat cycling. Sometimes they get so bad you have to toss them and get another one.
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Rocky mountain high"  John Denver
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Offline DaemonForce

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Re: Trouble installing
« Reply #2 on: September 19, 2012, 01:41:16 PM »
No. This is not acceptable. This header is a replacement for the cracked garbage I've been using up until now and these bolt holes are within 1/4" of lining up with the holes on the head. I don't have a ton of cash to spare for yet another header and I need this working today.
1983 Limited
AMC 258C {R2:11.Oct.12}
Carter 2681 {R2:28.Oct.12}
TorqueFlite A998 {R6: -20.Apr.12}
NP129 {R2:28.Apr.12}
M35-273 {???}
Compression: 10.5:1
Corrected Idle: 500RPM

Offline eagleman

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Re: Trouble installing
« Reply #3 on: September 19, 2012, 03:38:35 PM »
I had the same problem when I reinstalled my stock one. Didn't take long to figure out why both the front and rear ones were busted off to begin with. What I did was put the rear one on the rear stud and start the nut. Then I installed the two middle ones with the rear middle one first and then the front middle one. My front stud was then off around a eighth to three sixteenths. I then used a pry bar and pryed the exhaust manifold down and after many not so nice words and attempts I finally found a way to not only pry it down but also slightly forward allowing me to finally install the front stud. I then started the nut and then went back and installed the rest of the bolts. Then I torqued them to spec and in the correct order. Don't know if all of the exhaust manifolds are warped like mine was but anyway thats how after many failed attempts I finally got mine on and tightened up. Hope this helps with your problem and question. I also used new grade eight bolts and washers I purchased from our local jeep dealer. Anyway good luck and be careful!
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Offline DaemonForce

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Re: Trouble installing
« Reply #4 on: September 19, 2012, 05:03:57 PM »
This installation theory would have helped me a little earlier. I gave up and gave it to a machinist. His problem now. :/

Oh and something very interesting that probably threw everything off in the first place. When I unbolted the manifold, there was no rear bolt. So I'm actually missing a manifold bolt.
« Last Edit: September 19, 2012, 05:17:55 PM by DaemonForce »
1983 Limited
AMC 258C {R2:11.Oct.12}
Carter 2681 {R2:28.Oct.12}
TorqueFlite A998 {R6: -20.Apr.12}
NP129 {R2:28.Apr.12}
M35-273 {???}
Compression: 10.5:1
Corrected Idle: 500RPM