 Head Ache |
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| bkrantz |
 May 24 2021, 07:37 PM
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914 Guru  Group: Members Posts: 7,791 Joined: 3-August 19 From: SW Colorado Member No.: 23,343 Region Association: Rocky Mountains 
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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) 
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| ClayPerrine |
May 25 2021, 09:37 AM
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Life's been good to me so far..... Group: Admin Posts: 15,498 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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The absolute best way is to have someone remove the insert, and TIG up the hole. Then re-face the surface around the hole, re-drill the hole straight with a 6.8mm drill, and re-tap it. To do it absolutely right requires a vertical milling machine.
Clay |
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| pilothyer |
May 25 2021, 10:10 AM
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Member Group: Members Posts: 838 Joined: 21-May 08 From: N. Alabama Member No.: 9,080 Region Association: South East States |
QUOTE(ClayPerrine @ May 25 2021, 10:37 AM)  The absolute best way is to have someone remove the insert, and TIG up the hole. Then re-face the surface around the hole, re-drill the hole straight with a 6.8mm drill, and re-tap it. To do it absolutely right requires a vertical milling machine. Clay (IMG:style_emoticons/default/agree.gif) This would be the best way to address this problem. |
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Posts in this topic
bkrantz Head Ache May 24 2021, 07:37 PM
infraredcalvin Look to have plenty of meat, you definitely need s... May 24 2021, 09:57 PM JamesM
Comments?
How much money you looking to spend?
... May 25 2021, 12:24 AM 930cabman Agreed with the available meat, but location, loca... May 25 2021, 04:36 AM
stownsen914 Ugh, what quality. Should be correctable though. P... May 25 2021, 05:57 AM 914_teener
The absolute best way is to have someone remove ... May 25 2021, 11:31 AM Front yard mechanic Bolt it up and run it May 25 2021, 06:59 PM bkrantz I found a machine shop owner that is willing to tr... May 28 2021, 04:08 PM JamesM
I found a machine shop owner that is willing to t... May 28 2021, 05:38 PM ClayPerrine
I found a machine shop owner that is willing to t... May 28 2021, 10:15 PM bkrantz
I found a machine shop owner that is willing to ... May 29 2021, 10:15 PM ClayPerrine
[quote name='ClayPerrine' post='2919243' date='Ma... May 29 2021, 10:49 PM bkrantz
[quote name='ClayPerrine' post='2919243' date='M... May 30 2021, 08:33 PM Shivers Should be the same May 28 2021, 04:22 PM DRPHIL914
As I showed in my rebuild thread, I found one of ... May 28 2021, 04:56 PM bkrantz
[quote name='bkrantz' post='2918308' date='May 24... May 28 2021, 10:06 PM 914werke I use the short cast section cut off of a 71 914 ... May 30 2021, 09:08 AM |
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