 Spark plug thread inserts., Should I be concerned? |
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| Erben914 |
 May 13 2014, 11:15 PM
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Member  Group: Members Posts: 137 Joined: 1-January 13 From: Sacramento Member No.: 15,314 Region Association: Central California  |
I have my engine out for a bear tub restoration. I am reassembling everything and almost ready to put the engine back in.
As I was cleaning things up replacing the tube seals and getting ready to adjust the valves I found these threaded sleeves in my spark plug holes.   Looks like a PO was a DA? Did they strip all of the spark plug threads and use threaded inserts? I probably wouldn't have even noticed but they are loose and partially back out when I took out the plugs. They are at different depths now but do they bottom out when the plug is tight? I can't tell because the base of the plug covers the sleeve when the plugs are in place. I really don't want to take the heads off. I had no issues prior. If it ain't broke don't fix it? Or am I risking a bigger problem? |
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| Cap'n Krusty |
May 14 2014, 11:45 AM
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#2
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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 |
BTW, loose plugs, even plugs tight in loose inserts, can cause the exhaust gasses to torch right through the gap provided by their being loose. That's not something you want to have happen to your engine.
The Cap'n |
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Posts in this topic
Erben914 Spark plug thread inserts. May 13 2014, 11:15 PM
Hawker Well I'd say you just might be on to something... May 13 2014, 11:24 PM
Erben914
Well I'd say you just might be on to somethin... May 13 2014, 11:33 PM Hawker
Well I'd say you just might be on to somethi... May 14 2014, 09:14 AM infraredcalvin If they're loose, there is a problem, pay now ... May 14 2014, 12:10 AM Mblizzard I had a car with the inserts and never had an issu... May 14 2014, 05:34 AM Joe Ricard Time big insert. I had them in several HI Prefo... May 14 2014, 05:49 AM Cap'n Krusty I disagree, Joe. If they're loose, they'r... May 14 2014, 08:52 AM JStroud Eric, HP machine in Victor(Lodi), has done my mach... May 14 2014, 09:02 AM JStroud Here you go, HP Engine and Machine
... May 14 2014, 11:36 AM Erben914 Thanks for all the input guys.
I guess I won... May 14 2014, 07:18 PM Mblizzard
Thanks for all the input guys.
I guess I won... May 14 2014, 07:26 PM JStroud Damn Eric that's looking awesome, not bad for ... May 14 2014, 07:40 PM Erben914 [quote name='JStroud' date='May 14 201... May 14 2014, 07:59 PM Erben914 Thanks.
I pulled it apart in November and was try... May 14 2014, 07:49 PM Erben914 Hey any tips on pulling the head? I know to keep t... May 14 2014, 08:06 PM Mblizzard
Hey any tips on pulling the head? I know to keep ... May 14 2014, 08:20 PM jmill Had a single port VW motor overheat on me. Heads ... May 14 2014, 08:14 PM Erben914 Thanks for the advice.
Here is what I found. Do y... May 14 2014, 10:08 PM Erben914 RE: Spark plug thread inserts. May 14 2014, 10:10 PM Mblizzard Clean the area around the spark plugs and look for... May 15 2014, 06:27 AM Erben914 I couldn't find any cracks but two of the inse... May 17 2014, 12:11 AM |
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