Before I take it apart .... the (plastic ?) fitting for the temp sensor ?

[normzone]

I'd appreciate a quick review from the collective wisdom - I have a brass fitting and a new sensor ready to go in the head this weekend.

But the fitting in there currently looks like / sounds like to a ting test / black anodized bead blasted aluminum.

Is this a clever illusion? Do I truly have the dreaded plastic fitting that requires great luck or a dental surgeon to remove?

Just the first clue to address in my poor MPG  analysis ....

[pete roper]

'Buzzing'  Absolutely no idea where that came from! GUZZI made two parts the brass ones and the black plastic ones. No alloy ones I've ever heard of either OME or AM.

Pete

[normzone]

Much thanks Pete - I'll get surgical on it this weekend.

[organfixsing]

Before you put in the new one, put a small amount of some nickel anti-sieze in the hole, it doesn't take much, to improve the heat transfer from cylinder head to sensor. The sensor is actually a water temperature sensor. I used electronics heatsink paste but I am not sure that it will remain fluid for very long. The anti-sieze will handle higher temperatures. Perhaps the copper anti-sieze will handle higher temperature than the nickel? I don't know.
Cheers
Brian 

[ITSec]

 I used electronics heatsink paste but I am not sure that it will remain fluid for very long.

The temperatures reached by a computer CPU at the point of contact with its heat sink are very high all things considered, but not as high as cylinder heads typically get. The thermal paste is designed for a typical operating temp of 30-70 degrees Celsius, but has lots and lots of room to handle higher temps. I've used the same kind of paste for years and it's done a good job.

[antmanbee]

I use copper anti seize paste. Copper transfers heat better than anything but silver.

[Chuck in Indiana]

Norm, just be aware.. when you try to remove the sensor, it'll break. Probably. 
I use copper anti seize because I have a life time supply.. 

[normzone]

Thanks [Chuck in Indiana] - I've read the threads by the first responders - as I understand it, it either comes out in one piece, or you need dental tools and a machine shop.

I'm sacrificing a chicken first to improve my odds - Okay, actually I'm scrambling four eggs, but when the pipeline to the gods is busy some times they don't notice the difference.

[Chuck in Indiana]

but when the pipeline to the gods is busy some times they don't notice the difference.

Now you tell me. All this time I've been trying to follow protocol. 

[normzone]

Well, as usual, it's risk analysis, risk management. Not being an antique aircraft guy, my standards are a little lower than yours.

Mine WAS plastic, did not break during removal, and having read all the local threads and the sixty page thread on the other forum, I will not detail how I installed the new gear since it would border on political and religious - all I'd need to do would be to add a picture of a vacuum nipple to get the mods involved