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Discussion Starter #1
Ever since I bought the Mach, it had an exhaust leak between the manifold and exhaust pipe. Thought I could just tighten 1 or both of the nuts to better seal the donut. One nut was stripped and wouldn't tighten and the other wouldn't turn. I eventually persuaded it to turn and now have the nut removed, along with the broken stud. Well, I'll just take the head off and work on it at the bench. Now I have both heads off and still can't get the manifold off. Half of the bolt heads are rounding off. Might as well pull the rest of the motor out and clean things up a little.

Terry
69 Grande, 351W,4 sp
69 Convertible, 302, auto
69 Mach I, 390, 4 sp

http://albums.photopoint.com/j/View?u=1599118&a=12185591&p=44770693.jpg
 

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Here is a trick I learned while working in a machine shop. The exhaust manifold bolts on your car are 3/8" standard thread with a 9/16" head. After years of heat cycles, the head becomes undersized. Try using a good quality 14 milimeter, 6 point metric socket on them. You may have to use a hammer to get the socket firmly on the bolt head because it's a few thousanths smaller than a 9/16", and yours are already rounded off.

Good Luck,

Dave J

My wife says if I buy another Mustang, she's gonna divorce me. I'm sure gonna miss her....
 

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Discussion Starter #3
Thanks Dave, I was beginning to wonder if I was ever going to get the bolts out. Will try that today.

Terry
69 Grande, 351W,4 sp
69 Convertible, 302, auto
69 Mach I, 390, 4 sp

http://albums.photopoint.com/j/View?u=1599118&a=12185591&p=44770693.jpg
 
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