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Joined: Feb 2002
Posts: 38
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Feb 2002
Posts: 38 |
I have a 1961 Corvette, the fuel gauge will only indicate half full when I have a full tank of gas.
I removed the gas gauge and sent it to a company for repair, a month later it was returned with a note saying that there is nothing wrong with the gauge and that I should check other areas of the fuel system. I removed the fuel sending unit from the tank re-atatching the ground wire and the hot lead from the gas gauge. By operating the float arm by hand and watching the movement of needle on the gas gauge I am only able to get the needle to register too (3/4) three quarters on the gauge and that is going the full stroke from pin to pin with the float arm.
Should this register from empty to full when I move the float arm?
Or maybe I installed the wrong sending unit?
Please give me some idea where I should go from this point.
I also have a unrestored 1950 Chevrolet Special 2 dr. with 48,000 miles that Mack has helped me with in the past. Thanks to all you Chevy people out there.
Dupie :confused:
Dupie
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Willwood Engineering
Wilwood Engineering designs and manufactures high-performance disc brake systems.
Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188
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Joined: Nov 2003
Posts: 2,576 Likes: 2
ChatMaster - 2,000
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ChatMaster - 2,000
Joined: Nov 2003
Posts: 2,576 Likes: 2 |
it should register from empty to full as you move the float arm. suggest ya get a repo or nos 61 sending unit. they were available from gm as recently as late 80's . Check Corvette Central if a repo will work for you. #1 culprit of dysfunctional gas gauge readings is POOR Ground in the system. second most common culprit is dysfunctional sending unit. least problematic area is the guage itself. if the guage is the problem , send it to corvette specialties of Md. for restoration/rebuild. email me for addreses if needed. good luck, mike
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Joined: Feb 2002
Posts: 38
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Feb 2002
Posts: 38 |
Mike:
Thanks for the reply, I will order a re-pro today from Corvette Central.
Dupie
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Joined: Jan 2002
Posts: 135
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Jan 2002
Posts: 135 |
Also check the ground nconnection for the wire from the tank sending unit to car body. If that isn't clean, lingering resistance will keepm the gauge from registering full.
Jim
Jim
41 Special Deluxe
48 AD 1/2 ton
52 Suburban
69 Nova Coupe
63 Nova Convertible (daily driver)
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Joined: Feb 2002
Posts: 38
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Feb 2002
Posts: 38 |
Jim: Thanks for the re-ply, and ya I thought about the ground and hooked a wire directly to the battery ground just to be sure then to the sending unit.
Dupie
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Joined: Dec 2001
Posts: 279
Backyard Mechanic
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Backyard Mechanic
Joined: Dec 2001
Posts: 279 |
Be careful of the repop sending units.
The failure rate of the float is miserable (fine foreign made brass. The end caps fracture from temperature cycling)
Your best bet is to get the repop unit and reuse your ORIGINAL brass float (as long as its fuel tight)
Oliver J. Giorgi
Technical Advisor
1958 Passenger Car
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