Glad my ideas were helpful to you Culver ;And of course to anyone else who had good success .I've received far more help here than ever I can repay , one hand washes the other , so on and so forth .-Nate Culver Wrote :
Hello Nate and Ole Truckers,
If I had my thinking cap on when I wrote my short reply, I would have added a big note crediting Nate for information I am able to apply to continued operation of my vehicles and occasionally pass on. Many others have been very, very helpful, but it is Nate's notes that crowd my hard drive. To clean my gas cap, I would have struggled hours in the hot sun with a small wire. Nate would have soaked his in vinegar while drinking a cool one in the shade. Nate, there aren't words to describe how helpful you are to Ole Truckers, but I'd like to say, Thanks.
Regards, and Have a great day,
Culver Adams
1952 Chevy 1/2 Ton PU
Minneapolis, MN
-Original Message-
From: Nate
To: Replies Old-Chevy-Truck ; RepliesRoberts Trucklist
Sent: Mon, Sep 9, 2013 2:55 pm
Subject: [old-chevy-truck] No Gas 2 Carby
What Culver said ~
First & foremost is to open the frame to pump line and check for freely flowing fuel in a gush .
If no gush , the pump cannot do it's job .
I'm
assuming you removed the fuel filled cap , it's vented but the small
holes often rust closed ~ to repair , remove the rubber gasket and soak
it in a cup of White Vinegar from The Dollar Store .
-Nate
Culver Said :
Hello James and Ole Truckers,
Check gravity flow from fuel line by disconnecting it from the intake
side of the fuel pump. Fuel should flow in a stream the size of the fuel
line. If it doesn't, it could be one of the following is clogged: fuel
line, fuel filter, fuel tank outlet, or fuel tank air vent.
If fuel does flow well, check flow from fuel pump when starter motor
turns engine over and activates fuel pump. (This can be an explosion
waiting to happen: get good advice on how to be as safe as possible.)
If fuel pump pumps well, check carburetor.
If all these function, you should see/smell fuel in carburetor with air
cleaner removed when throttle is activated. (And, with strong spark,
proper timing, and compression, she ought to fire up.)
When you back flushed with air, was it with a bicycle tire pump? I think
if you are losing vacuum in a fuel line, you will see fuel leaking
out: is that the case?
Hope this helps,
Culver Adams
1952 Chevy 1/2 Ton PU
Minneapolis, MN
---
James Asked :
My 235 had some problems with old gas which I believe I fixed
by cleaning out the lines with forced air, dumping the old gas and
flushing the tank twice and changing the fuel filter. I noticed that
when back flushing the tank with air, gas came back up the pickup fuel
line telling me the tank was tight. I am thinking I am leaking vacuum in
the gas lines themselves. Should I replace them? That would be a pain.
Could that be the cause because I have run out of other ideas. How would
I test that?
James Zorn
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