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Oil Can Mechanic
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Oil Can Mechanic
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Hi All,
I'm waiting (anxiously) for my new gas tank to arrive from The Filling Station for my '47. The original straps are solid and in great shape so I cleaned the surface rust off, painted them up and got new hardware. My questions are
-Was there a rubber cushion or anti-squeak that should go in between the strap & tank? I dont' recall seeing any when I removed the tank, but its probably been out before.
-Does the tank need to be grounded for the sending unit to work?
I have a repro sending unit and it looks 100% like the original one, but with the painted straps and if I put rubber insulators in there, there won't be metal on metal touching the car anymore. Just wanted to check. The schematic from the manual just shows the 1 wire to the sending unit, and no grounds. I have rewired that since the original sender wire was frayed badly.
Just wanted to make sure and not blow anything up :) Thanks as always everyone!
-Daryl Scott #45848
• 1947 Chevrolet Fleetline Sportmaster Sedan
• 1976 Chevrolet C20 Fleetside
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Joined: Nov 2001
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The tank must be grounded for a couple of reasons. One is for the sending unit to work properly. The other is to control possible static charges.
How Sweet the roar of a Chevy four!
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I would suggest adding a ground wire from the sending unit screw to the gas tank strap bolt...I did it because I undercoated the tank to match the rest of the car ( it was under coated from the dealer originally )
You don't want to spend any more time back there than you have too...Go ahead and ground it...!
I don't think you need to bother with anything between the strap and the tank, it should be tight enough that it's not going to shift or move or squeak....
Last edited by kevin47; 05/29/12 08:39 PM. Reason: That's just me...
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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You don't want to spend any more time back there than you have too...Ground it...!  Was there a rubber cushion or anti-squeak I never found it in the parts book. But when I bought my tank COT40's had it listed as such, so I used it. One more reason for the seperate ground wire.
Russell #38868
'48 4 door Fleetline
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Joined: Sep 2005
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Oil Can Mechanic
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Oil Can Mechanic
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Good deal, thanks for the replies everyone. I'm doing new lines, new fuel filter, new filler neck hose & clamps, gas cap, and the whole 9 yards. I don't want to take any chances or deal with this fuel system again for a long time! This will help make sure its done right. Much obliged. 
-Daryl Scott #45848
• 1947 Chevrolet Fleetline Sportmaster Sedan
• 1976 Chevrolet C20 Fleetside
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Joined: Jan 2002
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ChatMaster - 1,000
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Make sure your new gas cap is vented.
1946 Chevy 3100 1/2 Ton Pickup Purchased 11/18/17 Sold 9/20
1948 Chevy Fleetmaster Coupe, Purchased 6/20/2010
1965 Chevy ll 350 Purchased Feb 2021. 3-speed Saginaw Hurst Floor Shifter 3.08 Rear End
2019 Ford Ranger Lariat Super Crew
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Joined: Sep 2005
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Oil Can Mechanic
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Oil Can Mechanic
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Keith- I did check to make sure its vented and it says it is...but it a repro so you know how that goes. If it acts up I'll throw the original one on. Thanks for the reminder!
-Daryl Scott #45848
• 1947 Chevrolet Fleetline Sportmaster Sedan
• 1976 Chevrolet C20 Fleetside
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Joined: Feb 2011
Posts: 3,136
ChatMaster - 3,000
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Squeeee..! I did that the other day testing my brakes....but it only came from one wheel...Guess there's more work to be done...
Last edited by kevin47; 05/30/12 10:04 AM. Reason: still praticing my spelling
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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Joined: Sep 2005
Posts: 583 Likes: 1
Oil Can Mechanic
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Oil Can Mechanic
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Time to adjust those brakes again. I hate brake work, but it seems every car I've owned needs it. Oh well, stopping is good!
-Daryl Scott #45848
• 1947 Chevrolet Fleetline Sportmaster Sedan
• 1976 Chevrolet C20 Fleetside
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