When I started the motor I notice there is lot of heat in the carburetor intake part, see image red circle.
Is that normal?
I was think if the gasket between the metal and exhaust should work like an isolator to minimize the heat?
Or maybe some other problems ?
My understanding is that is purpose of that bulge , using exhaust gas to heat and vaporize the intake .
I believe that is also why so many of them are cracked.
Ok thanks
I can see a very thin crack maybe a half inch going to one of the vacuum port. Maybe drill a small hole to stop and use JB-Weld to repair?
That might work but the crack might have to be opened up for the JB Weld to adhere. I have used it for that purpose with good results. That said I have been running an intake manifold that appears to have a crack for years without any issues so you might want to leave well enough alone if the car is running well. The crack has not grown any over the years.
Thanks for good info