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Registered
Join Date: Aug 2010
Posts: 48
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removing seized spark plug
Hi friends
Number 1 spark plug 'may' be seized or may not. I've asked around and I seem to have two schools of thought on what the worst case scenario would be, which would follow from the threads being crossed/pulled. A couple of mechanics have advised that should the threads be pulled that they would helicoil the head and that any aluminium particles that don't get removed will be fine - i.e. won't damage the heads or turbos. Another two mechanics have advised that due to the foreign matter created by the helicoil going into the heads that a top end would need to be done. What I want to know from the expert is - which is right? Do the heads really need to be opened up just to fix a seized spark plug, or could a helicoil be done safely with most of the particles removed, with remaining particles not being a concern? Thank you! |
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06-18-2012, 12:56 AM
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Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,431
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a helicoil is the last thing i would use. a timesert is the way to go. Home page. use a considerable amount of white grease on the tap to catch most of the chips. #1 on a 930 isn't the easiest one to fix with the engine in place.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 Last edited by john walker's workshop; 06-18-2012 at 04:05 AM.. |
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06-18-2012, 04:02 AM
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Thanks John. My main concern is the issue of cleaning up what falls into the head - what are your views on that? Would small amounts of aluminum cause issues?
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06-18-2012, 08:36 AM
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,125
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The grease is to keep shavings from going in.
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06-18-2012, 09:39 AM
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Join Date: Mar 2001
Location: Marysville Wa.
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i've done lots of them and no problems. a few tiny aluminum bits are not going to do any damage, as long as there's not a big pile of them. they'll be out the exhaust port real quick. turn the engine over a couple times by hand to be sure nothing is between piston and head before firing it up.
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06-18-2012, 10:19 AM
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Join Date: Aug 2010
Posts: 48
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Thanks again that's good to know. Just to clarify its a turbo (930).
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06-18-2012, 10:27 AM
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Banned
Join Date: Nov 2007
Location: Rockwall, Texas
Posts: 8,559
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Any particles that exit the exhaust port will then hit the turbine impellor and it doesn't take much to tear-up those blades. . .
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06-18-2012, 01:52 PM
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Join Date: Apr 2007
Location: Bellingham, WA
Posts: 249
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If the plus is still in the head & you can start the engine, start & warm up the engine. This will swell the head & loosen the plus. every little bit helps
Tom
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68 Beetle 68 to 72 sold 72 911T Nov 71 to present P/U @ factory Nov 19. Car was gift to myself for surviving the army 67 VW split window 74 to 76 sold 81 VW caddy 81 to present |
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06-18-2012, 02:38 PM
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