My DLE111 has stripped spark plug threads, plug will fall out after less than half turn. Better to buy a new cylinder head or try a helicoil? Or something else? Any help is appreciated.
Dave

Better do both. I’d buy one while you can:

So they were stripped Dave? Sorry to hear that. Good seeing you at Jackson!

Helicoils are not that hard to put in,once in they last a life time.I always use red Loctite when installing them never had one pull out.Now you have a steel base thread for the plugs to screw into.But if you have the money and want to spend it buy new if you can.

Originally Posted by tobytorkn

So they were stripped Dave? Sorry to hear that. Good seeing you at Jackson!

Yes, right cylinder badly stripped, plug would fall out on 1/2 turn. Was not told that when I bought it. I can tighten it but it would fall out again I am sure. Left cylinder looks clean but not sure why I got all the oil on outside cylinder head, don’t see anything wrong.

Originally Posted by closetguy

Helicoils are not that hard to put in,once in they last a life time.I always use red Loctite when installing them never had one pull out.Now you have a steel base thread for the plugs to screw into.But if you have the money and want to spend it buy new if you can.

Can you tell me where you got them? I don’t know of any sources.

Top of each cylinder near plug does not look pitted but it is not silver in color either. Should I be worried about that?

Try giving DLE http://www.dlengine.com/en/ an email with an explanation of what happened and see what they can do for you,,, might be worth a shot.


BV

Originally Posted by Schnell188

Can you tell me where you got them? I don’t know of any sources.

Google:
M10x1.25 Helicoil kit
You have to get the kit, because the tap is specific to the Helicoil OD threads. It is about $35ish for the kit.

Originally Posted by ghoffman

Google:
M10x1.25 Helicoil kit
You have to get the kit, because the tap is specific to the Helicoil OD threads. It is about $35ish for the kit.

Thx!

Originally Posted by ghoffman

Google:
M10x1.25 Helicoil kit
You have to get the kit, because the tap is specific to the Helicoil OD threads. It is about $35ish for the kit.

M10x1.0 mm....

My mistake, M10x1.0. Also, make sure the end of the Helicoil does not stick into the cylinder. It can act as a glow plug and cause pre-ignition.

Originally Posted by tande

M10x1.0 mm....

Thx!

Originally Posted by ghoffman

My mistake, M10x1.0. Also, make sure the end of the Helicoil does not stick into the cylinder. It can act as a glow plug and cause pre-ignition.

Ok will do

I would not use a helicoil
I would tap and thread for 14mm plug and use a 14mm to 10 mm plug adapter.

Every time I try to use a helicoil they come out.???

Milton