Blue Wire going into cylinder?

[Cabanaboy]

Does anyone know what wire this is going into cylinder? M20J Lycoming IO360-A3B6D

Is it Cylinder head CHT?  or engine preheater wire?

 

 

 

[Jim F]

It looks like Engine preheater. Follow the wires and it should lead to a 110volt plug

[Cabanaboy]

thats what i thought it lead to, is zip tied other wires of engine preheater but guy doing annual is not sure.  I have a Tanis system

[kortopates]

You need a new Tanis CHT heater element since the leads have broken off. I can see the Tanis power harness bundled in the lower right of picture #2.  You can order one from Tanis. Email the above pictures to Tanis if your A&P is unfamiliar or you just want to be sure asap so you can get a replacement ordered soonest. You could also have your A&P pull it out and snap a third  pic of the heater element too. 

[Cabanaboy]

Original engine preheater Heater installed 1994  Tanis System 110-03

 

Tanis Says I need part#   TTP2628-115/50 Threaded Heat Element - 3/8-24 CHT (TAS100) w/pin connector - $65

                                              TCS2598 Socket Connector Kit - 2 Contact (Plug Body DT06-2S) -- $4.50

 

(Legacy CHT Element)

 

 

[kortopates]

1 hour ago, Cabanaboy said:

Original engine preheater Heater installed 1994  Tanis System 110-03

 

Tanis Says I need part#   TTP2628-115/50 Threaded Heat Element - 3/8-24 CHT (TAS100) w/pin connector - $65

                                              TCS2598 Socket Connector Kit - 2 Contact (Plug Body DT06-2S) -- $4.50

 

(Legacy CHT Element)

 

 

Just a heads up but since you have the legacy old style connectors and need to replace the old harness connector with a new Deutch 2 pin connector to connect to the new probe with Deutch connector - make sure either your A&P has a crimp tool for these or you buy the economical one from Tanis. its impossible to make a circular (or 3 point crimp) on these that will hold right without the right crimp tools. An avionics tech should have the required crimp tool but not likely a A&P that hasn't been using Deutch connectors yet - although they are getting popular with avionics installers for good reason. 

[Guest]

There is little value in replacing with a TAS 100, if you plan on installing an engine monitor system you’ll need that hole for a CHT probe.

Clarence

[kortopates]

There is little value in replacing with a TAS 100, if you plan on installing an engine monitor system you’ll need that hole for a CHT probe.
Clarence

I prefer the Tanis dual probe and heater element. Both work best in the cylinder well. I guess if someone was doing that soon they could install the dual probe heater element now.


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[Cabanaboy]

thanks for the tips !