4657 Fuel Pump Rebuild.

[Harry Sadlock]

When rebuilding the 4657 fuel pump is it mandatory to replace the two valves and the actuating lever?

I'm rebuilding two, one is very dirty and clogged I know I must replace these parts, but the other one is very clean on the inside.

Thank You

Harry

38513

[Roy B.]

Re: 4657 Fuel Pump Rebuild.

No it's not necessary if the two valves are OK ( blow and suck) at the intake and out fitting to see if they are OK , but I would not change the actuating arm at all but the seal.

[Harry Sadlock]

Re: 4657 Fuel Pump Rebuild.

Roy, thanks for the post. That seal looks like it will be fun to get out! Any suggestions.

Thanks

Harry

[Roy B.]

Re: 4657 Fuel Pump Rebuild.

Well if you think the engine oil was not getting in to the pump for get it, but I pry it out with a screw driver then tap it back in.