Vacuum Hoses PICT30

No, you need full vacuum from the manifold to operate the vacuum diaphragm.

Don't forget that the manifold heat (smaller pipe under manifold) is necessary to vaporize raw fuel dumped in during acceleration. Without it you get stumbling and hesitation.

Speedy Jim

" I need to install a hose for the left outlet, which is shown to a vacuum port in the intake manifold. The problem is my intake manifold has no such port. I do have 2 other ports in the carb itself. Can I use one of these ports instead? "

No you can't use the ports on the carb, but what you might have instead is a port on the end of the dual port casting on one side. If you have such a port you can use it for this purpose although running the line that far will probably be a bit of an eyesore. Your other option is to find an intake manifold center section that has the port for the preheat system installed.

Make sure the pre-heat tube isn't plugged up. You can test it by touching it if you are careful, or you can try to spritz it with some water with the engine fully warmed up. It needs to be HOT. If it's just warm it is plugged up. You need to fix that as well to ensure good performance.

Chris

.=2E.and don't forget to check the flap inside the air filter. Mine was broken so the car was always sucking cool air even with all pipes on.

Jo=E3o

.=2E.and don't forget to check the flap inside the air filter. Mine was broken so the car was always sucking cool air even with all pipes on.

Jo=E3o

Thanks guys! I'll take a closer look at things this weekend.