plug threads stripped on cyl. head

sctrdawg Scoot Enthusiast scooter bum Posts: 149	plug threads stripped on cyl. head Apr 2, 2011 10:17:40 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by sctrdawg on Apr 2, 2011 10:17:40 GMT -5 need a temp fix til i can get the new head!
	Larry

sctrdawg Scoot Enthusiast scooter bum Posts: 149	plug threads stripped on cyl. head Apr 2, 2011 10:33:02 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by sctrdawg on Apr 2, 2011 10:33:02 GMT -5 and what size is the plug for a QMB 139? so i know what size threadsert to buy!
	Last Edit: Apr 2, 2011 11:39:46 GMT -5 by sctrdawg Larry

90GTVert Administrator Posts: 41,617 Location: Preston, MD	plug threads stripped on cyl. head Apr 2, 2011 13:36:41 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by 90GTVert on Apr 2, 2011 13:36:41 GMT -5 Helicoil would be the fix... www.popularmechanics.com/cars/how-to/repair/4212608 I think M10 x 1.0 is the size.
	Brent Life is better at high RPM.

jmkjr72 Scoot Pro Posts: 2,237	plug threads stripped on cyl. head Apr 5, 2011 20:37:33 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by jmkjr72 on Apr 5, 2011 20:37:33 GMT -5 those repair coils are great use lots of grease on the drill bit and tap and you might not have to pull the head to do it if you have good acess
	1983 Yamaha xs400 1985 honda elite 150 2008 yamaha zuma leo vince sp3

speedy1125
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plug threads stripped on cyl. head Apr 6, 2011 2:55:36 GMT -5

Quote

Helicoil would be the fix...

www.popularmechanics.com/cars/how-to/repair/4212608

I think M10 x 1.0 is the size.

yeah we used to use plug inserts like that on VW motors back in the day all the time, works great.

sctrdawg Scoot Enthusiast scooter bum Posts: 149	plug threads stripped on cyl. head Apr 8, 2011 8:40:46 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by sctrdawg on Apr 8, 2011 8:40:46 GMT -5 couldnt do the helicoil ,valves too close to hole! so bought a used head!
	Larry

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