Busted lawnmower.. anybody used a helicoil?

[Lankytim]

Last week I was merrily mowing away with my petrol mower when the spark plug shot out. On inspection I found that the threads in the head had stripped and now the plug won't go back in! I may just adaldite the spark plug back into place, but I guess a helicoil or similar would be a correct repair. Has anybody used a helicoil kit before? How much of a disaster am I likely to cause?

[wackywacerwill]

Buy the kit, helicoils are GR19.5

[Minimad5]

Clever little things helicoils.

 

Never used one for the application you intend tim, but have used them on numerous occasions in high torque locations.

Shite picture shows ...

 

 

Edit:

"high torque location" - By this i mean the bolts are torque upto 280lb·ft and sometimes over, and subjected to shear stress (pulling) and none have failed as of yet.

[Minimad5]

One thing to consider though, how would you get the "tang" off the helicoil, without it falling into the head ?

(Don't suppose vaseline on the wind-in tool, could help stick the tang to the tool ... ??)

[AeroNautiCal]

One thing to consider though, how would you get the "tang" off the helicoil, without it falling into the head ?

(Don't suppose vaseline on the wind-in tool, could help stick the tang to the tool ... ??)

 

Magnetic pick up tool always works, or pop the head off.

 

[Lankytim]

To get the tang out id probably stand the mower on it's nose and shake the shit out of it.

[Mr_Bo11ox]

Its only little, i'd just leave it in! It'll find its way out eventually.