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Banned
Join Date: Mar 2004
Posts: 183
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Spark Plug Socket - what size is it?
I'm gonna be pulling plugs tonight and want to get the right socket on the way home from work (if it's not one I already have).. It's 2.0L if that matters. BTW, I searched the archives and I know this is a lame question Sooo thanks!
Doug C |
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10-01-2004, 10:34 AM
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Banned
Join Date: Nov 2000
Location: Upper Back Bay Newport Beach California
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13/16 For Stock 14mm Plugs. just be careful not to drop the plug in the tin.
Last edited by SteveStromberg; 10-01-2004 at 12:09 PM.. |
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10-01-2004, 11:20 AM
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Banned
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Thanks Steve, that's one I'll have to get on my way home. But now you have me wondering why won't a 14mm socket work?
Doug C |
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10-01-2004, 11:24 AM
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Administrator
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The 14mm is the size of the hole, I believe. Spark plugs are made with the flats in standard US (inch) sizes. There are two common sizes of spark plug socket, 5/8" (I think) and 13/16" (I think). They generally have rubber inserts in them to hold the plugs and help to keep the insulator from chipping on the inside of the socket. They're also deep-well.
Anyway, the 914 uses the larger of the two standard spark plug sockets. I prefer to use one with a universal joint built into it, as that gives me something to hook onto with a wire if the socket comes off the extension when I'm done screwing the plug in. (My "locking" extensions don't seem to lock very well.) Come to think of it, the socket I have with the u-joint built in does seem to let go of the plug much more easily than the one I have that doesn't have the u-joint built in.... --DD
__________________
Pelican Parts 914 Tech Support A few pics of my car: http://www.pelicanparts.com/gallery/Dave_Darling |
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10-01-2004, 12:01 PM
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Banned
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OK, very good. Thanks!
Doug C |
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10-01-2004, 12:14 PM
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Registered
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that really is critical. I have been unable to get th socket to let go of the plug after it is in many, many times. It sucks. The whole socket with spark plug are hidden below the tin for a couple of the plugs. Also, for my socket, I have to push the new plug all the way into the very bottom of the socket in order for the combined assembly to line up for the hidden spark plug holes. This makes it all the more reluctant to pull off. Like Dave's u-joint, I drilled a whole in the top of the plug socket so I can hook it and pull it out. Lastly, it is easy to strip the plug holes. Use anti-sieze compound and be certain that the alignment with the threads is good. It seems my 914 runs best with plain ol' copper plugs. I've tried platinum and multi-point ones which did not seem to provide the seat-of-pants improvement that Bosch copper plugs made.
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10-01-2004, 08:42 PM
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Banned
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Location: Upper Back Bay Newport Beach California
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Here are two tools that make it much easier to change the spark plugs.
 
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10-01-2004, 08:56 PM
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Banned
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Steve, you got p/n's for those tools and are both used together or is it one or the other? I'd like to purchase 'em, so where should I look? Thanks.
Also, has anyone thought about enlarging the spark plug holes (while tin is off) just slightly? Which cylinders are most problematic, I may look into it since my tin is off right now to be painted. Doug C |
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10-04-2004, 06:37 AM
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Banned
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10-04-2004, 08:06 AM
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74 Porsche 914 2.0 
1973 Porsche 914 2.0
