Over-tightened spark plug on scooter...

[dowlf]

I was changing the spark plug on my Genuine scooter, usually I go till hand tight, then a quarter turn. I got it hand tight then when I put the wrench on it the thing felt pretty tight, I gave it a little juice and it seemed to kind of break free and I went way more than a quarter turn, but it was pretty violent. I hope I didn't do a number on the aluminum threads, but it sure felt like I did.

Just like my dad used to call me, "Bull in a China Closet."

If it turns out I did do damage to the threads I'll have to figure out what to do to remedy the situation.

 

[eljefino]

Well take it out and look

 

[Eddie]

Look into a "thinSert or Helicoil thread fixer. You could take the cylinder head off and take it to a machine shop or even a Scooter repair shop to fix it. You are not the first one to be Ham Fisted. Ed

 

[spasm3]

Was the engine hot? I generally change plugs in aluminum when its cold.

 

[Donald]

Invest in Torque wrench.

 

[Malo83]

Bet you worked at Wal Mart Tire Lube Express

 

[HerrStig]

A breaker bar can actually give you more control than manhandling a short ratchet handle.

 

[Trav]

Sounds like you stripped it. I sometimes use these for old VW air cooled bugs on small engines. On second thoughts give the head to a pro.

 

[901Memphis]

Well the new plug is in right? You have lots of time before you have to worry about this.

 

[spk2000]

Plug might blow out under pressure and depending on where it goes might be dangerous like a large bullet.

 

[Trav]

Seen that happen a few times on Ford 5.4 2v and on one old FLH.