Parts location 6.2 lift pump supply line

Anybody know where I can find a lift pump supply hose for the 6.2 engine. The molded one between the steel fuel line on the frame going to the lift pump?
It’s for an 1984 M1010.
Thanks

They are no longer available to purchase. Supposedly there line from a Corvette is available and fits.

That is disappointing! Any idea what corvette? What do people that need this line do without a replacement?

I can't confirm but this must be it.

That looks a lot like the 6.2 line for sure. Thanks for that information.

The trouble with just bending a regular neoprene hose is the radius of the curves are to tight and it will kink. Braided stainless steel hose can do the curves without kinking. However, with hose clamp nipples on each end AN fittings that work aren’t cheap.

Something like this can be cut down to length and has hose clamps on each end:

ballencd said:

That looks a lot like the 6.2 line for sure. Thanks for that information.

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get the one that doesn't have the part number on it as it's only 15$...I don't think you're going for NCRS points.

This works, I have used them before. I drive by the Top Flight factory store on occasion and purchase them in the showroom/retail store area.
Fuel Hose

I must be a Magician because I used standard fuel line on several units and just ran it a bit longer and covered it with split loom. I wire tied it fast and it worked for years. Yes if you make the tight bent it is going to kink. But the fuel don’t care if it has to travel a bit further. While you are doing that I would check your motor mounts and assure the mounts and fuel feed is not resting or rubbing on the frame crossmember. Good Luck. I’m sure the Corvette one would work if others say it does. I never had that as an option when fixing downed trucks right now.

Lots of good ideas here. Thanks. I am headed up tomorrow to work on it. I have a new lift pump in hand since while I am fixing the expected leak I am going to replace the 40 year old pump too. The engine was running fine until I started driving it above 25 mph and started starving for fuel. I suspect there is a leak before the lift pump which is sucking air when running and leaking fuel when off. The PO has already replaced the motor mounts so I am one step ahead but I still need to change out the transmission mount as it is wet and gooey. Wish me luck.

I agree that a longer line doesn't need the moulded shape. Fortunately, my 40 year old line is still in good condition.

cucvrus said:

I must be a Magician because I used standard fuel line on several units and just ran it a bit longer and covered it with split loom. I wire tied it fast and it worked for years. Yes if you make the tight bent it is going to kink. But the fuel don’t care if it has to travel a bit further. While you are doing that I would check your motor mounts and assure the mounts and fuel feed is not resting or rubbing on the frame crossmember. Good Luck. I’m sure the Corvette one would work if others say it does. I never had that as an option when fixing downed trucks right now.

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I was thinking the same thing, just make the line a bit longer to avoid kinks.

I did the Corvette fuel line a few years back and so far its been fine. The one I bought was the right size and worked good.

ballencd said:

Lots of good ideas here. Thanks. I am headed up tomorrow to work on it. I have a new lift pump in hand since while I am fixing the expected leak I am going to replace the 40 year old pump too. The engine was running fine until I started driving it above 25 mph and started starving for fuel. I suspect there is a leak before the lift pump which is sucking air when running and leaking fuel when off. The PO has already replaced the motor mounts so I am one step ahead but I still need to change out the transmission mount as it is wet and gooey. Wish me luck.

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Might check your fuel tank pickup sock.
They are known to clog and starve the engine when the fuel demand is higher.

ballencd said:

Lots of good ideas here. Thanks. I am headed up tomorrow to work on it. I have a new lift pump in hand since while I am fixing the expected leak I am going to replace the 40 year old pump too. The engine was running fine until I started driving it above 25 mph and started starving for fuel. I suspect there is a leak before the lift pump which is sucking air when running and leaking fuel when off. The PO has already replaced the motor mounts so I am one step ahead but I still need to change out the transmission mount as it is wet and gooey. Wish me luck.

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Have you been able to correct your fuel problem?

There is one section of rubber fuel line that never gets the attention that it requires. Behind the passenger fender well there is a 6 inch section that is hidden and to get to it you need to remove the fender well. If you are getting air sometimes just tightening the clamps will stop the air intrusion. Not a hard job unless the bolt anchors brake off and the bolts spin without coming out. Then a grinder to cut the bolt heads off.

The hose degrades over time no matter what. And what happens most is that the filter gets clogged with bits of rubber that has degraded from inside the fuel line. The bends are the most susceptible as they are stretched or compressed and also crack creating an area that will let air in.

Lots has happened since my last post. I tried to bring it home 3X and it failed 3X a few miles from the shop. I have now pulled the tank and found some nasty stuff in there along with a bad sending unit so that is on order from LMC.


I could not get a good picture of the inside of the tank but it was coated with the same rusty goop.

I have replaced the lift pump of 40 years. It was still working.....6 psi and about a liter in 14 seconds of turning the engine over but it was 40 years old. Did I mention that already. The supply hose to the pump was still looking good so I re-used it. Not sure when the pump will show up but I will post back when it is installed and I find out if it fixes it or not. The supply line at the tank was pretty soft and squishy and the sock was clogged up so I am thinking that this will fix it. I am replacing all the rubber lines I can find while I am waiting for the tank to come in. I am planning a replacement of the inner fender soon and will replace that hidden fuel line then if all works OK after the tank install.

Outstanding update!