Fuel sending unit woes.
Thread Starter
Burning Brakes
Joined: Oct 2001
Posts: 1,185
Likes: 0
From: New Wilmington PA
Fuel sending unit woes.
At last I've tracked down the source of my gas gauge troubles... I was able to test the sender alone today and found it to be reading 219 Ohms. Well outside the 0-90 range. I've only found one company even stocking the 75-77 style sending unit, Zips sells it for $249.95.
Anyone have any experience replacing these? I really don't look forward to dropping the tank but it has to come out anyway in order to weld in a sump. (For the EFI project) Is the tank hard to get in and out? Will I need any special parts? (gaskets?) Just looking to see what I'm getting into.
Anyone have any experience replacing these? I really don't look forward to dropping the tank but it has to come out anyway in order to weld in a sump. (For the EFI project) Is the tank hard to get in and out? Will I need any special parts? (gaskets?) Just looking to see what I'm getting into.
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
Re: Fuel sending unit woes. (Cookwithvette)
Most corvette parts houses sell the replacements for about $85. You do not need to drop the tank, just turn the retaining ring. OH, be sure to drain the tank first, or you will get a snout full.
Thread Starter
Burning Brakes
Joined: Oct 2001
Posts: 1,185
Likes: 0
From: New Wilmington PA
Re: Fuel sending unit woes. (wombvette)
Nope. Unfortunately 75-77 uses a rubber bladder inside the tank. Sending unit for these years mounts through the top and clamps the top of the bladder on.
I'm definately going to check around locally. There is a Corvette parts store only about 12 miles away. I'll even check Autozone and Advance just for giggles. (They hate me, I'm sure. I'm always coming in asking for some obscure part. Maybe I'm becoming a *butt* but I'm almost starting to enjoy confusing them. :lol:)
I'm definately going to check around locally. There is a Corvette parts store only about 12 miles away. I'll even check Autozone and Advance just for giggles. (They hate me, I'm sure. I'm always coming in asking for some obscure part. Maybe I'm becoming a *butt* but I'm almost starting to enjoy confusing them. :lol:)
Race Director
Joined: Oct 2000
Posts: 15,048
Likes: 79
From: central FL, near the beach.
Re: Fuel sending unit woes. (Cookwithvette)
i've always been able to fix them. it did take a couple of hours on my 67 ford; the wire was broken and just touching; read 236 ohms. soldered in a new wire and fixed a bad ground.
At least TRY to fix it; what have you got to lose?
At least TRY to fix it; what have you got to lose?
Race Director
Joined: Sep 2002
Posts: 10,362
Likes: 5
From: San Diego - Deep Within The State of CONFUSION!
Re: Fuel sending unit woes. (Cookwithvette)
Check with local shops that can rebuild it. Here in SD we have a couple of places to take sending units. At work we frequently have them redone at the local speedo shop - he fixes dash circuits and tank senders as well as speedometers.
Average charge to rebuild the rheostat is about $50 and he solders on a new float too. :yesnod:
Average charge to rebuild the rheostat is about $50 and he solders on a new float too. :yesnod:
Pro
Joined: Apr 2001
Posts: 591
Likes: 0
From: Morinville Alberta
Re: Fuel sending unit woes. (Cookwithvette)
I remember feeling your pain. I went a whole year with out a gas gauge just because I was scared to get into it.
But when I did I found that the sender unit it in a tit pot that has two pieces to it. One was flat and the other was the part that held the reostat and the arm on the other end of the float. These two has seperated because the were built realy flimsy like a Tonka truck Knock off! so Iremoved the assy repositioned it and spotwelded it in the spots that held it togeather in the first place. Now it works great total cost one afternoon. Make sure to test it with out of the tank before instalation.
hope this helps
:cheers:
But when I did I found that the sender unit it in a tit pot that has two pieces to it. One was flat and the other was the part that held the reostat and the arm on the other end of the float. These two has seperated because the were built realy flimsy like a Tonka truck Knock off! so Iremoved the assy repositioned it and spotwelded it in the spots that held it togeather in the first place. Now it works great total cost one afternoon. Make sure to test it with out of the tank before instalation.
hope this helps
:cheers:
Thread Starter
Burning Brakes
Joined: Oct 2001
Posts: 1,185
Likes: 0
From: New Wilmington PA
Re: Fuel sending unit woes. (Aaron76)
This is very good news guys. Thanks. I hadn't thought it was repairable. Thought it burned out like a light bulb, when it dies replace it. If I can fix it on my own, or even have it rebuilt for $50 it sure beats ordering one for $300+.
Thank you all very much. :cheers:
Thank you all very much. :cheers:
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Le Mans Master
Joined: Sep 2002
Posts: 5,236
Likes: 898
From: Myrtle Beach SC
Re: Fuel sending unit woes. (Cookwithvette)
Hey Cook:
DIY...I think that's the message here. I just wrote an article for NCRS Corvette restorer on how to rebuild your fuel gauge sending unit for pennies. It takes time, patience and an empty tank. Intereted...let me know!
DIY...I think that's the message here. I just wrote an article for NCRS Corvette restorer on how to rebuild your fuel gauge sending unit for pennies. It takes time, patience and an empty tank. Intereted...let me know!
