Timing plug thread size
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Tourer
Joined: Apr 2016
Posts: 327
Likes: 99
From: Central Coast of CA
Timing plug thread size
What's the thread size for the timing plug? The stock cad plated one threads in and out smoothly and case threads look good. Got a new Colony chrome plug and it starts then gets hard to turn, threads look good. Don't want to garf any threads, so would like to clean the case threads and run a die on the new Colony plug.
Club Member
Joined: Mar 2009
Posts: 66,145
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From: Niles Canyon Ca.
Gotts watch the chrome build up on those fancy plugs, sometimes it's too thick and will gall the threads. I lost one that way, had to oversize the hole.
Can't remember the size off hand sorry.
Can't remember the size off hand sorry.
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Tourer
Joined: Apr 2016
Posts: 327
Likes: 99
From: Central Coast of CA
Thank you, went out to the tool box thinking "I have that size". No such luck, have 5/8 X 11. So off to the hardware emporium tomorrow.
Road Master
Joined: Nov 2006
Posts: 1,067
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From: Northeastern Indiana
as mentioned, I would bet your problem is with the chrome on the new plug … you will need to run a die over it to cut the excess chrome build up
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nukeone01
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Jun 12, 2015 06:53 AM
