Need advice on spark plug repair kit to buy?

[Mattyo]

Sorry....was just asking for a pic of the tap running into the roof

 

[Lone Wolf]

Sorry....was just asking for a pic of the tap running into the roof

Well I was only able to get the 14 mm part in and no threads of the 17mm part of the tap .

 

[Mattyo]

Hmm....

 

[Lone Wolf]

 

[Lone Wolf]

 

[Lone Wolf]

I'm thinking if i mess with it it will not be perfectly square and not seal I want to maybe get Twinstaged to do it on a machine.

 

[Lone Wolf]

Hmm....

See what I mean

 

[GoBigBlue1984]

Shouldn't be a big deal. Making your own threaded insert would be even better if you're worried about it sealing. You can cut your threads to whatever depth you need and add some loctite on top of that and voila. It will not leak.

 

[GoBigBlue1984]

Literally would take half hour to turn out/thread an insert and drill/tap.

Just my opinion but that's what I would do if I were you.

 

[Mattyo]

Grind it grind it grind it

It looks identical to mine. It really doesn't take much grinding on the cylinder to get that tip be straight. Your call though. If twin can get her lined up right...that would be ideal.

 

[Lone Wolf]

Shouldn't be a big deal. Making your own threaded insert would be even better if you're worried about it sealing. You can cut your threads to whatever depth you need and add some loctite on top of that and voila. It will not leak.

It is if you don't have a machine shop. I don't want to FUBAR it up its the only 200T cyl I have left. Its half shot already.

 

[Lightning Performance]

Exact same kit? Now we need an opinion on the combustion chamber you ground. Tomorrow I will try what you did on a junker.

He didn't remove enough to add up to much. Pull the gasket. Should be fine. Those saws run at high R's low volume and relatively low compression. Just be mindful of the plug to piston gap. I usually index my plugs to get the best burn. You can take less material out than Matt did.

 

[twinstaged]

Well just let me know. No pressure either way. Glad to see you want to make sure it's done right since I own one of your saws lol.

 

[twinstaged]

I wouldn't build another aligning arbor like that, but I was in a hurry and didn't have the right size die. I can't metric single point thread until I build the transponding gear for my Hendey. The OEM brand sleeve repair kits are so/so. Not a fan of the tap to sleeve clearance so I used the high temp thread locker to be safe.

 

[Mattyo]

Yup...always mounting is a trick. ..wow....

 

[Lone Wolf]

Looks good Twinstaged ,and thanks ,I cant wait to try it out.

 

[MustangMike]

Any out come? I'm getting a MS 460 with stripped spark plug in today.

Any advice on the best fix would be appreciated.

 

[Mattyo]

Mike, send me the jug, I can put an insert in...