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Helicoil for oil drain bolt on a 1983 GS450E?
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I would not use a Heli-Coil for the drain plug. You can go to your favorite auto parts store and get an oversize plug. I think it's an M14x1.25, but measure to be sure. The oversize plugs come in a +1 size or a +2 size. If your stripped plug (likely the oil pan, not the plug) still has a little "bite" to it, get the +1. If you can keep spinning it with your fingers, get the +2.
Oh, and if you DID use a Heli-Coil, it usually comes with its own special tap. It's a size that is not available anywhere else.Last edited by phydeauxmutt; 04-25-2022, 11:04 PM.
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Oh you know what? A while back, I had a car where a spark plug came loose and stripped its own threads, and I still have the kit. The thread size is M14-1.25! I already have all the tools and extra inserts from this kit. I think I might go ahead and just use this kit one more time. It'll have a nice steel thread that shouldn't give me issues or need a special bolt.
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Forum LongTimerGSResource Superstar
Past Site Supporter- Oct 2006
- 13962
- London, UK to Redondo Beach, California
1980 GS1000G - Sold
1978 GS1000E - Finished!
1980 GS550E - Fixed & given to a friend
1983 GS750ES Special - Sold
2009 KLR 650 - Sold - gone to TX!
1982 GS1100G - Rebuilt and finished. - Sold
2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!
www.parasiticsanalytics.com
TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/
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Originally posted by Synthead View PostI'm having a hard time finding an oversize M14-1.25 bolt. Got a link to something I can buy by chance?
https://shop.advanceautoparts.com/we...0051&langId=-1
https://www.amazon.com/s?k=oversize+..._ts-doa-p_1_19
The list goes on.
And on.
Check your current bolt with a thread gauge. It MIGHT be M14-1.50.
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Originally posted by salty_monk View Posthttps://www.amazon.com/Dorman-65217-.../dp/B000COCX0E
Pretty hard not to find it with a google search to be honest.....
For all those people who find it more convenient to bother you with their question rather than to Google it for themselves.
Originally posted by phydeauxmutt View Post
https://www.autozone.com/external-en...ize+drain+plug
https://shop.advanceautoparts.com/we...0051&langId=-1
https://www.amazon.com/s?k=oversize+..._ts-doa-p_1_19
The list goes on.
And on.
Check your current bolt with a thread gauge. It MIGHT be M14-1.50.- That's 1/2"-20
- There are no M14-1.25 bolts in that list
- There are no M14-1.25 bolts in that list, either
- Amazon has a M14-1.25, but it isn't oversize
Last edited by Synthead; 04-26-2022, 09:18 PM.
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Forum LongTimerGSResource Superstar
Past Site Supporter- Oct 2006
- 13962
- London, UK to Redondo Beach, California
It cuts new threads so I don't think it matters if it's 1.25 or 1.5.... There are a bunch of threads on it here for people that have had success. Do some searching.1980 GS1000G - Sold
1978 GS1000E - Finished!
1980 GS550E - Fixed & given to a friend
1983 GS750ES Special - Sold
2009 KLR 650 - Sold - gone to TX!
1982 GS1100G - Rebuilt and finished. - Sold
2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!
www.parasiticsanalytics.com
TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/
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Having had to do this job myself, may I strongly suggest removing the oil pan and being very careful to ensure that the resulting thread is fully perpendicular to the pan surface. I mistakenly had the angle slightly off and wound up having to machine out the crap threads, and insert an...insert, threaded and properly perpendicular.
Turning a drill press by hand will work just fine.1982 GS 450L aka Lil' Red
1980 GS 1000G aka Big Red (Resto-mod WIP)
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Doesn't your thread repair keep you from draining the last pint or so of dirty oil because the thread insert sticks up INTO the pan? Since you took off the pan anyways, could you have inserted the insert from the inside out so the protruding threads would be outside the pan and the inside would be flush?
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