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rheavn · 07-14-2012, 11:48 AM

Russ,
I'm not a diesel mechanic. In reading my DD series 60 service manual the only thing that I have seen that would remove air after the Davco fuel filter is the Pro-Chek check valve. It is installed on the right side of the motor between the fuel pump & the injectors.

From the manual: "An optional PRO-CHEK check valve that removes air from the fuel supply line may be installed between the secondary filter and the cylinder head. The fuel flows to the injectors in the cylinder head through passages intregal with the head. Surplus fuel exits at the rear of the head just above the inlet, through a restrictive return fitting which maintains fuel pressure in the system and returns back to the fuel tank."

07-14-2012, 11:48 AM	#8
rheavn Senior Member Join Date: Feb 2010 Posts: 433	Russ, I'm not a diesel mechanic. In reading my DD series 60 service manual the only thing that I have seen that would remove air after the Davco fuel filter is the Pro-Chek check valve. It is installed on the right side of the motor between the fuel pump & the injectors. From the manual: "An optional PRO-CHEK check valve that removes air from the fuel supply line may be installed between the secondary filter and the cylinder head. The fuel flows to the injectors in the cylinder head through passages intregal with the head. Surplus fuel exits at the rear of the head just above the inlet, through a restrictive return fitting which maintains fuel pressure in the system and returns back to the fuel tank." __________________ Steve Newell