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What the hell am I missing? I can't get the one of the fuel lines of the top of the friggin' prepump. The one towards the left side of the car. I assume its the return line or something.
Perhaps get out the oxy-acetylene and cut the hole in the trunk bigger? :-)
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-Matt '70 145s, '65 1800s, '66 122s wagon, others inc. '53 XK120 FHC
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Yes, that was the return line I mentioned in the reply to your first thread; hence the suggestion to get some 5/16 ID fuel line in case that 26 year old pipe down below was rusty.
Like was mentioned, you're supposed to undo the connection between the thermoplastic line and the steel line above the axle, but usually it falls to pieces under the twist of the crossed line wrenches. It is the steel end that falls apart, but mostly folks just replace all the way back to the barb on the sender assembly.
One one of mine, I left the plastic hose intact, using a cut-off end from a tranny cooler pipe to adapt it to a rubber splice added to the steel return line. The evils of rust.
Did you ever compare with the tank full? I know I'd rather do that job with it near to empty.
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Art Benstein near Baltimore
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Hi Art,
Again.. thanks. I should have paid better attention.
I talked to a previous owner of the car, only to find out that the little piece of flex line in the tank was replaced a couple years ago, and it is fine. Though the symptoms were identical... would cut out only when a little below half tank.
But last time I drove it, it started cutting out similarly even with the tank full... so now I'm at a bit of a loss. I'll pick up some fuel line today to replace the one I cut. And I've got a friend/neighbor who has a '82 with CIS injection that I can steal parts from.. so I'll probably grab his prepump unit complete and see if that helps. If not, I'll get his main fuel pump which is nearly new and see if that solves it. If not, I'll have to assume its in the electrical system somewheres.
I'll get 'er going soon enough. In the mean time, I've got a perfectly good 122 wagon which is a pleasure to drive. Just doesn't have as good a heater..
-Matt
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-Matt '70 145s, '65 1800s, '66 122s wagon, others inc. '53 XK120 FHC
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So the pump made noise even on a full tank. That is the part that worries me from the standpoint of your main pump being in jeopardy. I believe the pre-pump has enough slop in its centrifugal design to allow significant flow through it under gravity alone, even when unpowered, when the tank is full. But I read all the time about how necessary the immersion in fuel is for cooling the positive displacement main pump; that a long time sucking air isn't good for it. I also imagine it is made to be lubed with fuel, so the air ingested might cause friction to increase speeding its demise. Oh yeah, I'm so full of good news;-)
I hope for your wallet's sake I'm way off.
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Art Benstein near Baltimore
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Makes sence... one problem having caused the main pump to go bad. I have access to a free spare, and its nearly new. so no biggie...
Thanks again
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-Matt '70 145s, '65 1800s, '66 122s wagon, others inc. '53 XK120 FHC
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Thanks for the replies... I got the damn thing out. Turns out, its a fuel line within a fuel line. The inner one being a hard plastic thing that appears to be heat shrunk on the fitting, and the other a larger one that probably just protects the inner. What a dumb idea that. I guess a fella is supposed to take it out with the line attached, cuz there'd be no way to get that inner line off there from the hole in the trunk.
In the end, I got mad and cut the sucker off.. so now its time to find a new hose too. Probably just take a complete prepump/hose/sending unit from a donor car. We'll see.
The real pain part is that the plan was to replace a bad pickup line piece of fuel line, and it looks fine, so that ain't even my problem. Arg. Perhaps a new prepump will solve the cutting out problem. If not, main pump I suppose.
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-Matt '70 145s, '65 1800s, '66 122s wagon, others inc. '53 XK120 FHC
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Arrrgh, Matt.
If you looked under the car in the rear fenderwell, you would have found a compression fitting on that hose attaching it to the steel line that runs under the car. That's the proper way to take it off, then feed the whole line up through the hole in the trunk.
For what it's worth, I cut my first one off too. NAPA has a good match in size but you'll have to undo that fitting under the car so you can make up a new line. The ends are barbed so a couple of hose clamps will do ya. I got the priciest high pressure fuel line they had, which set me back about five bucks IIRC.
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Nineteen Volvos 445-544-122-1800-240-740 Four turbos
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A assume you are refering to the hoses which attach to the nipples on top of the pre-pump outside/on top the tank. Take a small screwdriver and some WD-40. Spray the hose at the joint, work the screwdriver between the hose and the metal nipple a little bit. Spray again. Let sit for a minute or two, work the screwdriver, spray, wait repeat ... The point is to get the WD-40 between the hose and the fitting. You will need to clamp the scredriver with a vice-grips because you will need a right angle to get it in.
Worked for me.
Good luck.
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Yea... them is the hoses. I got the hose loose, but its as if theres a wire running through it or something... THat *couldn't* be the case, could it?
Thanks for the reply...
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-Matt '70 145s, '65 1800s, '66 122s wagon, others inc. '53 XK120 FHC
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re: "...its as if theres a wire running through it or something...."
I'm not sure if we're talking about the same thing, but one of the hoses has a stiff plastic liner that makes the hose rigid, something you might think was a wire stiffening it.
It appears to be like a heat-shrink plastic material, probably to ensure to firm attachment to the fitting on the cover plate to which the sender and pre-pump are attached.
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posted by
someone claiming to be 4 Volvos
on
Thu Jan 27 07:18 CST 2005 [ RELATED]
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If you can get under the car there is a threaded junction that comes undone with a 15 and a 17 mm wrench on that hose. It is a tight fit but then you can twist off the lock ring and lift the whole thing out of the square hole.
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