striped spark plug on dyna
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Grand HDF Member
Joined: Nov 2007
Posts: 4,067
Likes: 60
From: Chesterfield, VA
striped spark plug on dyna
What to do, plug is loose now. We drove all over the place trying to find 12 x 125 helix kit but no go.
Is there an easy fix without having to take the head off
Is there an easy fix without having to take the head off
Road Warrior
Joined: Mar 2009
Posts: 1,843
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From: PacNW (Olympic Pennsula)
Club Member
Joined: Mar 2009
Posts: 66,115
Likes: 51,404
From: Niles Canyon Ca.
Try these work great and easy too.
http://www.timesert.com/html/sparkplug.html
http://www.timesert.com/html/sparkplug.html
What he said they work great , I've repaired a LOT of stripped plug holes on pans & shovels without removing the heads . They a good video on that site that shows you how .
PS ; it's aluminum a few small bits will blown out the first 1/2 second the motor fires , if it was carbide then you worry .
Seasoned HDF Member
Joined: Sep 2007
Posts: 9,207
Likes: 372
From: Central Illinois, Between I-80 and I-74
Most auto parts stores should have the inserts. I've only done one spark plug hole. I cut a piece of sponge and covered it with grease, stuffed that through the hole before drilling and tapping. Also put a small diameter hose on the shop vac and sucked up chips as I drilled and tapped. Then I pulled the sponge out and again vacuumed the hole.
Club Member
Joined: Mar 2009
Posts: 66,115
Likes: 51,404
From: Niles Canyon Ca.
Most auto parts stores should have the inserts. I've only done one spark plug hole. I cut a piece of sponge and covered it with grease, stuffed that through the hole before drilling and tapping. Also put a small diameter hose on the shop vac and sucked up chips as I drilled and tapped. Then I pulled the sponge out and again vacuumed the hole.
What ever you do DO NOT USE A HELI-COIL waste of money and you have problems later with a bigger hole to fix .
Pack the tap with heavy grease it traps the chips none fall into the cylinder that way . Use a rag soaked with brake cleaner to screw down into the new threads a couple times to clean them . Be sure to use a permanent high strength Loctite if the kit doesn't have some in it and let the bike sit over night to set up .
Your cleaning precaution are a good idea but not really needed and a shot in plug hole with a long thin air nozzle will blow anything that may have dropped in . Canned air like you use to clean electronics will work in a pinch too .
Here's a couple shots of the taps & insert types I use , it's not a hard hi tech job just use common sense you'll do fine .
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Club Member
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From: Niles Canyon Ca.
Thanks GL , I come from the old school . If couldn't fix it you were not going to be riding it very long .
First time you blow a plug it does seem like a world of chit has landed on your shoulders so I feel for the guy it is scary .
After the 3rd you've got it down to a 1/2 hr casual , 15 mins if your on the clock .
-Moderator-"Wench with a Wrench and Queen of Quips"
Joined: Jan 2008
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From: Breaux Bridge, LA
Thanks GL , I come from the old school . If couldn't fix it you were not going to be riding it very long .
First time you blow a plug it does seem like a world of chit has landed on your shoulders so I feel for the guy it is scary .
After the 3rd you've got it down to a 1/2 hr casual , 15 mins if your on the clock .
First time you blow a plug it does seem like a world of chit has landed on your shoulders so I feel for the guy it is scary .
After the 3rd you've got it down to a 1/2 hr casual , 15 mins if your on the clock .