 Head Ache |
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| bkrantz |
 May 24 2021, 07:37 PM
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914 Guru  Group: Members Posts: 7,809 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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| JamesM |
May 25 2021, 12:24 AM
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Senior Member Group: Members Posts: 1,921 Joined: 6-April 06 From: Kearns, UT Member No.: 5,834 Region Association: Intermountain Region |
QUOTE(bkrantz @ May 24 2021, 05:37 PM)  Comments? How much money you looking to spend? Quite a few ways you could go but that all depends on your goals here. The safest bet, get brand new heads, but that obviously isnt an option for everyone. Frugal approach? Assuming you are not looking to have any other work done on the heads, and assuming the insert is the solid style and not a heli-coil, screw a stud and test fit your heat exchangers on the bench. If the stud is still angled well enough to let the heat exchangers slide on properly then I would say that may be the best you could hope for with that head. If you have the proper setup to do so you could attempt to re-drill it straighter and run an oversized insert, but that could be a gamble as well, especially if the current insert is actually functional as is. Personal opinion here, but anything beyond that requiring welding on the head I would just get new (as in brand new) heads. Exhaust stud issues may be my least favorite thing to deal with on 914s |
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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 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 ClayPerrine The absolute best way is to have someone remove th... May 25 2021, 09:37 AM pilothyer
The absolute best way is to have someone remove t... May 25 2021, 10:10 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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