Expansion Valve Tacky Tape

[PbFut]

I purchased some Tacky Tape from Old Air Product. My AC is working correctly and not over heating the tubing. It runs at correct temperature. Does this tape require a catalyst after installation? I took about a 50 mile run today doing some ECU tuning and upon return noticed an odor in the garage after a few minutes. I opened the hood to this. Any ideas? The previous factory material never did this.

[leddzepp]

I bought that tape from truck and car shop years ago when I restored my AC. It still looks the same as the day I installed it, wondering if you got a bad batch?

[PbFut]

So ~7 bucks on old air site plus 38 shipping. Amazon.com had it for ~11 incl tax and shipping, vender, old air. Hummmm.
It accorred to me that I now have twice the hp and way stronger electric fans. Engine is remarkably temperature stable. I wonder if under hood temps are elevated as result of fans pulling more calories out of radiator. I don't know. Those old big blocks would heat saturate like no tomorrow. I'm going to work this puzzle all night. Android watch sleep score going to tank tonight.

[Steeveedee]

I'd say that you received the wrong product. My truck coolant has gotten to 260° and that tape didn't melt...and the AC wasn't running, which would have made it worse.

[PbFut]

I tend to agree. The material installed about 2 months ago. Nothing noticably different from previous oem material likely 50 years old. Today it decides to melt. Got to say, this truck realy likes to mess with me.