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Old 06-27-2018, 04:44 PM   #106
Navistar
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Unhappy Re: The "Fuel Tank" Thread

I have a 1968 c1100 that I'm having trouble finding a fuel tank for or another fuel tank that will work . does anyone know of a fuel-cell that will fit in place of the old one
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Old 06-27-2018, 05:01 PM   #107
jeff campbell
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Default Re: The "Fuel Tank" Thread

A guy out on west coast is making aluminum tanks
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Old 06-30-2018, 03:05 PM   #108
Navistar
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Default Re: The "Fuel Tank" Thread

Do you know his name or business name I can't seem to find anything online
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Old 06-30-2018, 03:10 PM   #109
jeff campbell
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Default Re: The "Fuel Tank" Thread

Will try and find it.jeff Ismail should know . ?
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Old 11-22-2018, 06:27 PM   #110
Peter frost
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Default Re: The "Fuel Tank" Thread

1967 1100b pickup 304 engine
Fuel gauge when tank is full registers just over 1/2 full on the gauge.
Solution?
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Old 11-23-2018, 08:28 AM   #111
Bob Prohaska
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Default Re: The "Fuel Tank" Thread

Quote:
Originally Posted by Peter frost View Post
1967 1100b pickup 304 engine
Fuel gauge when tank is full registers just over 1/2 full on the gauge.
Solution?
First thing I'd do is check the voltage regulator for the gauges. IIRC it's
a little tricky: It's a bimetallic oscillator that chops the car's 12 volt
(nominal) supply to (I think) 5 volts RMS. The frequency was rather low,
a few Hz, which means you have to measure the on/off times and do a
little math. The gas and oil pressure gauges have a very slow response
and so filter out the chopping.

If the oil pressure reads mid-scale when cold at fast idle it's unlikely
the regulator is the problem, it might pay to look at the sender in that
case.

Good luck, hope this helps

bob prohaska
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Old 11-24-2018, 12:17 PM   #112
Robert Kenney
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Default Re: The "Fuel Tank" Thread

Quote:
Originally Posted by Peter frost View Post
1967 1100b pickup 304 engine
Fuel gauge when tank is full registers just over 1/2 full on the gauge.
Solution?
IIRC the sender should read 0 ohms when full and 70 or 90 when empty. Read the sender from ground to the sender wire with your ohm meter. This should be the first thing to be the first thing to check. If you get a higher resistance to ground I suspect the sender.
The resistance values are from memory so until I verify them just use them as a reference.

If you ground the sender wire from the gauge, you should see a full scale reading or more. Only ground it for a short time with the ignition on for the test.
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