Missing Exhaust Bolt, What to do next? |
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Missing Exhaust Bolt, What to do next? |
ctc911ctc |
Feb 23 2020, 09:17 AM
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#1
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Senior Member Group: Members Posts: 893 Joined: 9-June 18 From: boston Member No.: 22,206 Region Association: North East States |
I finally got the car in the air to investigate an exhaust leak. Thank you for all of the lift advice, the QuickJack seems to be working great!
Looks like i am missing a bolt. Nothing to attach the nut to, so my question is what to do next? Looking at this picture, does this look like a broken part? perhaps there are threads in there? Assistance please. |
Superhawk996 |
Feb 23 2020, 05:16 PM
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#2
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914 Guru Group: Members Posts: 5,868 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch |
Which heads and which hole are we looking at? The hole as shown on the side with the valve guide side doesn't go directly into the combustion chamber.
On my 2.0L heads all holes are much deeper than 7 threads and none go into the combustion chamber. Appears to me that you have corrosion or dirt that has bridged the hole and that is what you're seeing a hole through the blockage. Quick check would be pull spark plug, and use air nozzle to blow air into the exhuast stud (with that cylinder exhaust valve closed). You shouldn't be hearing any air in the combustion chamber. Could also pick at the hole with a needle pick and see if it simply crumbles away like dirt or corrosion 1st. |
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