Somethin's smokin

Does hi-temp paint for extractors have a life span? and does it burn once that time is up?
 
I can see and smell smoke coming from the hot side of the engine bay but can't determine if it's the paint burning of the pipes or the fire foil I installed on the clutch cable 18 months ago
 

Hi Drew
 
The pipes have been painted for about two years, I used 3M brand 600deg from supercheap (when they used to sell 3M)
No not driving it hard but my Pinto was running lean from an idle circuit blockage in the 32/36 weber. I cleared the blockage tonight but still smoking in the engine bay. Maybe the overtemps from lean mixture broke down the paint and now it's stuffed

Mine smoked with vht paint but only while they were baking in
And now the paint is falling off like Drewdog's. No smoke now, the paint just falls off in patches when it decides to
 
There isnt any traces of oil on the extractors? I had a tiny bit of oil small enough for me to not notice it that smoked quite a bit
 
Cheers,
Ryan

Smokes all gone now, it pretty much stopped after I cleaned the carb. No oils or fluids were on the pipes.
I redid the flange gasket at the base of the extractors a few weeks ago and used a smear of red high temp silicone on the gasket faces but it looked ok, unburnt. 
 
Thanks