Well I got my CHT out finally, This doesn't look good Options

[Nozzle]

In preparation for the trip to Hershey this weekend, I wanted to troubleshoot some very poor cold starting that had developed recently. To check the health of the CHT sensor I pulled it so I could verify cold and warm readings. Odd thing was how much effort it took to remove. I'd read these things should snug but not be in very tight. So I finally got it out and this is what I found:



I'm no expert but that sure looks like aluminum filling in the threads. I have a correct replacement but I'm worried about trying to thread it into the head at this point.

So my question is how screwed am I now and what is the best way to go forward? Any thoughts or experience in this area would be much appreciated.

Thanks,

John

[Dave_Darling]

You you can try (try!) to get a helicoil into the hole without dropping the motor. Not easy, but I have heard that it can be done.

I dropped the motor when it happened to me. And then I found a few other things that I should do "while I'm in there"...

--DD