I know there are plenty of threads about the subject.

My problem is slightly different. I removed a spark plug due to a misfire. When I pulled the plug the old helicoil came out with it. Some of the helicoil is missing, probably fell down into the cylinder. I don't think another helicoil is going to fit into the old threads. So now what are my options?

 

wish i could help ya man but i don't want to get you bad advice have you tried seeing if one would fit?

 

That's a Bosch Plug correct ? Shop Vac the cylinder the way it sits, as good as possible. Hand crank the piston up, keep sucking it out. You can also use compressed air to assist after vac. Then you better compression test it, - more than just the Heli Coil fell apart. The wrong plugs were installed, they came undone.

Yea C-test/ then "Timesert" if alls well. -User Galaxy rents a kit.

That sucks, -Good Luck.

 

Bosch plugs have the wrong heat range. worst possible plug for a modular. Id use a shop vac get a funnel with a long tube stick the tube in the plug hole stick the vacuum on the funnel suck it out then blow compressed air in the hole then suck it out again. Then compression test it. and like Jbrew says time sert..

 

Yes, definately wrong plugs. Also a foul that the first repair was with a heli-coil. They are not permanent as you've discovered here, I don't care what luck some guys have had with them. Any successful heli-coil repair is the minority.

TimeSert is a permanent, quality repair. Do some searching on them and you'll see. Ts the only way to go. Even though you've already had a heli-coil repair job done, it may still be salvagable for a TimeSert, so you're not completely out of luck.

You don't have a PM, so drop me a line and I'll let you know which way to go, or email me at amsoil@galaxylubricants.com

 

Wrong heat range in conjunction with a possible lean condition would explain why the plug has broken. Check out my other thread for my misfire problem.

 

Yea, lean has nothing to do with it. It's 100% heat handling/transfer.

 

If you go Timesert, you may need a BigSert. If you are anywhere near SoCal, I'd probably take that one to Dave at blownoutsparkplug.com. They do travel, but that jacks up the cost considerably.