[Aurel]

Hi,

I recently replaced my dead Bosch fuel pump with a Walbro GCL608 kit, including a Walbro GSL392 pump. My car, 78SC, now starts fine when cold, but not when warm.
I know my original fuel pump had the check valve inside the pump. I did not get a check valve with my kit, and I do not know if the Walbro pump has one inside. If not, that could be the cause of my warm startup problem.
So my question to those who use Walbro fuel pumps: did you add an external check valve or not?

Aurel