 One of these things is not like the others, One of these things just doesn't belong |
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| LowGT |
 Dec 20 2005, 02:35 AM
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#1
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1.8 and Proud!  Group: Members Posts: 583 Joined: 2-October 05 From: Wylie, TX Member No.: 4,904 Region Association: Southwest Region  |
....
Can you tell which thing is not like the others By the time I finish my song? Sesame Street flashback... Anyway, this is what I pulled out of the "rebuilt 5k ago" motor from the 914. Attached image(s) 
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| LowGT |
Dec 20 2005, 02:39 AM
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#2
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1.8 and Proud! Group: Members Posts: 583 Joined: 2-October 05 From: Wylie, TX Member No.: 4,904 Region Association: Southwest Region |
At first I was confused, how could one spark plug be bigger? But then the ol' gears started turning...
Helicoil or something I guess, but now what do I do? Can I buy another one to replace this so I can get the plug back in? This one can't go back in because it's split, which has to be where my "loudness" is coming from. Attached image(s) 
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| dlo914 |
Dec 20 2005, 02:52 AM
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#3
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Whatchu' lookin' at?!?! Group: Members Posts: 3,432 Joined: 6-September 04 From: San Gabriel, CA Member No.: 2,697 |
FLAPS? a size 3/8ths helicoil
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| Joe Ricard |
Dec 20 2005, 07:58 AM
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#4
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CUMONIWANNARACEU Group: Members Posts: 6,811 Joined: 5-January 03 From: Gautier, MS Member No.: 92 |
Your helicoil came out. That sucks.
What kinda motor you got there I might have a head you can get from me. Pm me. |
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| SirAndy |
Dec 20 2005, 10:56 AM
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#5
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Resident German Group: Admin Posts: 41,607 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
have it welded up and re-taped with the original thread size ....
(IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) Andy |
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| URY914 |
Dec 20 2005, 11:06 AM
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#6
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I built the lightest 914 in the history of mankind. Group: Members Posts: 120,273 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
Have it welded up and retaped for a SMALLER then orignial size plug. Then it won't develop a crack between the plug hole and the valve. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)
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| Cap'n Krusty |
Dec 20 2005, 01:46 PM
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#7
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
It's NOT a helicoil, and it's NOT 3/8ths. It's a FLAPSD style insert, and a new one ain't gonna fix the problem. You need a head repair by a REAL machine shop, welding up the crack and replacing the seats. The Cap'n
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| dmenche914 |
Dec 20 2005, 02:55 PM
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#8
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Senior Member Group: Members Posts: 1,212 Joined: 27-February 03 From: California Member No.: 366 |
Not a helicoil, it is a spark plug insert. For now, just go buy a new insert, and new plug. use some antiseeze on the plug threads (not the insert) but do not use it on the external insert threads. This is typical to happen, the insert comes out with the plug. I have driven many many years with inserts, but more often than not must replace teh insert with each plug change. sooner or later you'll wont a "proper" repair and have the heads removed, welded up, and re-drilled/tapped for the original plug size, in the mean time keep some spare inserts handy. Beware that that the threads int eh head holding the insert might be weak (not tapped correctly, heat damaged aluminum, etc...) so don't remove that plug anymore than needed, as you might find that the remaining threads in the head will strip, leaving you with no other option other than the "correct" repair.
good luck |
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| Katmanken |
Dec 20 2005, 05:13 PM
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#9
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You haven't seen me if anybody asks... Group: Members Posts: 4,738 Joined: 14-June 03 From: USA Member No.: 819 Region Association: Upper MidWest |
Use Jake's trick- Milk of magnesia on the new plug threads..
Plugs will come out much easier. Ken |
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