Quote:
Originally Posted by SilverSpear
Why would you loose your engine?
|
As the total demand on the fuel pump exceeds flow capacity of the pump the fuel pressure drops. One way around this is to run 2 pumps, which cuts the demand on each pump in half. This keeps your fuel pressure up at the proper level. If you have one of the pumps fail you will not be able to maintain full fuel pressure which will cause your motor to run lean. As soon as this happens both the cylinder pressure and cylinder temps increase to a point at which detonation occurs. This detonation will lead to significant engine damage. On weaker pistons it will break a ring land. On stronger pistons like 2618 alloy forged piston you might not break the ring land, but you will either fail the rod or pound the bearings out of it.
Since you still have one pump running the motor continues to run unlike if you only had one pump and it fails the motor just stalls.
Jarrad