 Longevity/reliability of a "sleeved" helicoil timesert spark plug hole |
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| nditiz1 |
 Jan 21 2025, 06:08 PM
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Senior Member  Group: Members Posts: 1,238 Joined: 26-May 15 From: Mount Airy, Maryland Member No.: 18,763 Region Association: MidAtlantic Region 
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I recently acquired a 912e aka 2.0 Ljet. I was told it was running up until the point the 912e was disassembled. I find it very hard to believe when spark plug #4 hole does not thread a m14 spark plug. I will check an m16 bolt tomorrow when the hardware store opens as that is close to what I get with a micrometer. Now the hole is threaded. If I can get a m16 -> m14 reducer how well will it hold up? Should I only use a helicoil or even a timesert? OR if it does accept m16, get a studebaker m16 spark plug and gap accordingly?
Thanks all!  |
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| technicalninja |
Jan 21 2025, 06:17 PM
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Advanced Member Group: Members Posts: 2,531 Joined: 31-January 23 From: Granbury Texas Member No.: 27,135 Region Association: Southwest Region
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Sorry, I think you're TOAST!
Looks like a time-sert came out! I'd take that apart, check for other damage/cracks and have a machine shop weld that back up if the casting is good otherwise. You're almost there anyways... Strange to see intake bolted on with no tins. Do 912 tins fit OVER the intakes? I didn't think they did. |
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Posts in this topic
nditiz1 Longevity/reliability of a "sleeved" helicoil timesert spark plug hole Jan 21 2025, 06:08 PM
Montreal914 Knowing how the stock 2liter heads all crack here ... Jan 21 2025, 07:56 PM Chad911sc When I presently pulled my 2.0 apart, all 4 spark ... Jan 28 2025, 04:14 PM technicalninja I recycle anything aluminum...
Now, when I go, I... Jan 28 2025, 04:32 PM
Artfrombama FWIW;
I was told many years ago by an old VW mecha... Jan 28 2025, 08:04 PM |
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