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hsburt
04-09-2012, 15:40
Hi there everyone.
I'm the guy with the 6.2's in my boat. (Well actually they're still in my garage........the project was a lot costlier as it grew quite a bit in scope).
As I began piping in the new fuel tanks, I've become suspicious that the original fuel pumps were not matched for pressure. What is the minimum and maximum pressures that need to be supplied to they injector pump? The fuel is being drawn out of the top of the tank via a pick-up tube (the tank is about 24" tall). Should there be a check valve on the pick-up tube in the bottom of the tank?
Thanks for your time folks.

Steve Burt
East Petpeswick, Nova Scotia
31’ Sport Cruiser
“Lucky Max” FSA-31-5023-H

john8662
04-19-2012, 07:12
6psi is ideal for an MFI injection pump.

The range typically is 6-9psi.

The only check valve on a 6.2 typically in in the lift pump, you shouldn't need one if you don't have any leaks in the system on the engine.

J