The Ford Barn

V8guy · 08-08-2025, 02:03 PM

The fuel gauge is pushing the red fluid out the top of the glass tube in to the gauge. I have removed the gauge and cleaned it more than once and cleaned the sending unit last year. suggestions

Mike

deuce lover · 08-08-2025, 02:20 PM

Read page 3 & 4. Excellent diagram on post 60

"Redoing my hydrostatic fuel gauge with new red liquid ( 1 2 3 4 view all)
JimG"
https://www.fordbarn.com/forum/searc...t=Redoing,JimG

Terry,OH · 08-09-2025, 06:42 AM

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It would appear the fuel tank is being pressurized. The sending unit has a tube to release pressure in the tank, if it is blocked what your seeing can happen since the 35 gas cap is not vented. OR If someone adds pressure to the tank via a compressor or other, this could overwhelm the small vent tube sending excessive pressure to the gauge.

08-08-2025, 02:03 PM	#1
V8guy Member Join Date: Sep 2013 Location: Milwaukee Wi Posts: 98	1935 Fuel gauge The fuel gauge is pushing the red fluid out the top of the glass tube in to the gauge. I have removed the gauge and cleaned it more than once and cleaned the sending unit last year. suggestions Mike

08-08-2025, 02:20 PM	#2
deuce lover Senior Member Join Date: May 2010 Location: Rockwall TX Posts: 6,018	Re: 1935 Fuel gauge Read page 3 & 4. Excellent diagram on post 60 "Redoing my hydrostatic fuel gauge with new red liquid ( 1 2 3 4 view all) JimG" https://www.fordbarn.com/forum/searc...t=Redoing,JimG

08-09-2025, 06:42 AM	#3
Terry,OH Senior Member Join Date: May 2010 Posts: 5,394	Re: 1935 Fuel gauge Sponsored Links (Register now to hide all advertisements) It would appear the fuel tank is being pressurized. The sending unit has a tube to release pressure in the tank, if it is blocked what your seeing can happen since the 35 gas cap is not vented. OR If someone adds pressure to the tank via a compressor or other, this could overwhelm the small vent tube sending excessive pressure to the gauge.