vaccum system

[phcarr]

I just discovered that some of the original vaccum system is missing. The fuel pump has been replaced with an aftermarket pump. could this be a reason my engine will not stay running. I have check the coil and need valve they are both working fine. I have replaced the fuel lines also.

[kwai]

Doesn't sound like a vacuum problem to me.

If the engine will stay running when you spray something like B12 in the carb then you most likely have a fuel problem. You can check the pump by cranking the engine with the ignition off and the fuel line disconnected and going into something like a pint water bottle. If it doesn't fill the bottle in a 5-10 seconds then your pump isn't working well.

[Binford]

The stock fuel pump provides vacuum for the windshield wipers, so that part of the system might be what you see missing. That won't affect the engine running though.