Head Ache |
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Head Ache |
bkrantz |
May 24 2021, 07:37 PM
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#1
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914 Guru Group: Members Posts: 7,801 Joined: 3-August 19 From: SW Colorado Member No.: 23,343 Region Association: Rocky Mountains |
As I showed in my rebuild thread, I found one of my cylinder heads with an insert for one exhaust stud, but installed at an angle. The other head has one oversize stud hole (9mm?).
My first thoughts: remove the insert and inspect the hole. I may attempt to drill a larger hole at the proper angle and install a bigger insert. If I do that, I may do the same for the other head, which will be the same hole position. Comments? Attached thumbnail(s) |
bkrantz |
May 28 2021, 04:08 PM
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#2
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914 Guru Group: Members Posts: 7,801 Joined: 3-August 19 From: SW Colorado Member No.: 23,343 Region Association: Rocky Mountains |
I found a machine shop owner that is willing to try removing the insert, welding the hole, and re-drilling for the stud. But he needs an exhaust to be sure the stud position is correct.
Can this be done with the short 75-76 exhaust pipe section? Any difference in exhaust ports or stud locations on the 75-76 heads? |
ClayPerrine |
May 28 2021, 10:15 PM
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#3
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Life's been good to me so far..... Group: Admin Posts: 15,512 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
I found a machine shop owner that is willing to try removing the insert, welding the hole, and re-drilling for the stud. But he needs an exhaust to be sure the stud position is correct. Can this be done with the short 75-76 exhaust pipe section? Any difference in exhaust ports or stud locations on the 75-76 heads? When I repair them on the car, I use the short cast section cut off of a 71 914 heat exchanger. I bolt it up with the other stud, and use it as a guide to re-drill the hole. |
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