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Ford 390 Fuel Pump Installation Instructions

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The 390 was one in all Ford’s most generally used massive-block engines, and was geared up in each passenger automobiles and vans. All 390s used a single-motion, sealed fuel pump. As a result of these pumps have been sealed, they may not be adjusted and even repaired. Though poor gas stress is symptomatic of a faulty fuel pump, fuel leaks are the commonest symptom of a faulty fuel pump on a 390. Fortuitously, putting in a brand new fuel pump on this engine is pretty easy.

Ford 390 Fuel Pump Installation Instructions

1. Loosen the clamp on the tip of the negative battery cable with wrench, then pull the cable off of the battery.

2. Disconnect the rubber inlet line from the underside of the fuel pump. The inlet line suits onto a steel nipple on the pump, and is secured with a single clamp. Loosen the clamp with both a nut driver or flathead screwdriver, then pull the road off of the pump. Insert the tip of the road right into a plastic bag, as a small quantity of gasoline will seemingly drip from the road.

3. Disconnect the steel outlet line from the underside of the Ford 390 fuel pump. The define line options an in-line nut at its tip, which screws into the fuel pump. Flip the nut in a counterclockwise route with a wrench till the tip disconnects from the pump. Insert the tip of the road right into a plastic bag, as a small quantity of gasoline will doubtless drip from the road.

4. Take away the 2 bolts positioned on both aspect of the fuel pump with a socket wrench, then pull the pump off of the engine.

5. Wipe down the opening on the facet of the engine that the fuel pump bolts to with a rag and engine degreaser. It can be crucial that any outdated gasket materials be faraway from this floor in order that the brand new gas pump gasket will adhere to the engine correctly.

6. Apply gasket sealant to 1 aspect of a brand new Ford 390 fuel pump gasket, then press the gasket into place on the engine.

7. Apply gasket sealant to the remaining facet of the brand new Ford 390 fuel pump gasket.

8. Press the substitute fuel pump towards the gasket, then set up the pump’s two retaining bolts with a socket wrench.

9. Tighten the in-line nut on the tip of the metallic outlet line onto the underside of the pump.

10. Press the tip of the rubber inlet line onto the metallic nipple on the underside of the pump, then tighten the road’s clamp till the road is safe.

11. Reattach the negative battery cable to the battery by tightening the nut on the tip of the cable with a wrench.


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