Gain extra benefits by becoming a Supporting Member Click here find out how!
Classic Performance Products Classic Parts
Ciadella InteriorsAmerican Auto Wire Classic Industries
Chevs of the 40sDanchuk Catalog
Hellwig Products IncPerformance Rod & CustomEcklers AutoMotive
Nu-Relics Power Windows
Impala Bob's Bob's Chevy Trucks Bob's Chevelle Parts Bob's Classic Chevy

Username Post: Modern fuel damages fuel tank float        (Topic#348109)
Aussie_Chevy_Nut 
"3rd Year" Silver Supporting Member
Posts: 490
Aussie_Chevy_Nut
Loc: Australia
Reg: 11-26-02
11-07-17 06:54 PM - Post#2713623    

A couple of years ago I tracked down a fuel gauge fault: The float was not floating. I pulled the sender and found the float was full of fuel. So I changed the whole sender unit and all was ok, for a while!
Now the gauge is acting up again, a full tank shows almost empty so I am going to pull the sender and float to see if the same problem is happening again.
I spoke to my local Classic Chevy Parts dealer here in Australia and he said that modern fuels are causing the floats to dissolve in the tank. Apparently this is a rather common problem, at least here in Australia. Our fuels do not contain lead and Ethanol is available but the Government is having a hard time getting folks to use it because it has a bad reputation as bad for all cars, not just classics.
I wonder if anyone has heard of this problem and whether they know whether there are better floats available somewhere. My car is '59 Impala 2 door hardtop with 348 tri power.
Cheers, John



 
This Forum is Sponsored by
1-800-IMPALAS  *  www.impalas.com
Visit Impala Bob's forum on ChevyTalk
Bel Air kiwi 
"2nd Year" Silver Supporting Member
Posts: 3577
Bel Air kiwi
Loc: New Zealand
Reg: 04-24-14
11-08-17 04:55 PM - Post#2713703    
    In response to Aussie_Chevy_Nut

Hi John, There are plastics that will last a thousand years in fuels, but parts fakers don't use them.

You could try going to an old carb guy and see if he has a brass float he can adapt on.
It should read reasonably true if its about the same volume. The old floats are thin wall so should weigh about the same as plastic.

Cheers Kiwi


48 3100 RHD, 51 Deluxe 4DR RHD, 51 Bel Air parts car, 52 Bel Air P-Glide LHD. Others 23T, 32 Tudor, 58 Edsel pacer 4DR HDT, 79 F250 351C RHD. 69,70,82 Capri. No mobile, no TV, and no Jap cars.

And when it was laid to waste, they called it peace.


 
DonSSDD 
Silver Supporting Member
Posts: 6607
DonSSDD
Loc: Nova Scotia, Canada
Reg: 08-21-01
11-08-17 05:23 PM - Post#2713707    
    In response to Bel Air kiwi

There is a Ford plastic float that fits, I picked one up 10 years ago at the local Ford dealer, it was common and was on his shelf. Do some searching on here the part number may show up and you might get it locally. I avoid ethanol in anything with a carb.

63 Pontiac Parisienne Sport Coupe(CDN Chev mechanically (409, 4 speed),62 Bel Air SC (sold), 59 El Camino (sold), 62 Bel Air SC(sold), 63 SWC Vette (sold),
Member #2194


 
DonSSDD 
Silver Supporting Member
Posts: 6607
DonSSDD
Loc: Nova Scotia, Canada
Reg: 08-21-01
11-08-17 05:33 PM - Post#2713708    
    In response to DonSSDD

Found one, part number is COAZ9202-B but this one is brass. The one I found was black plastic. The brass one is $6 at Summit, but you may find it locally.

63 Pontiac Parisienne Sport Coupe(CDN Chev mechanically (409, 4 speed),62 Bel Air SC (sold), 59 El Camino (sold), 62 Bel Air SC(sold), 63 SWC Vette (sold),
Member #2194


 
larrybrowningmauldin 
Contributor
Posts: 401
larrybrowningmauldin
Loc: New Braunfels,TX
Reg: 08-16-05
11-09-17 05:58 AM - Post#2713749    
    In response to DonSSDD

The brass Ford C..... floats does work well as numerous Chevy Talk members, including myself, have reported. Bon chance



 
Aussie_Chevy_Nut 
"3rd Year" Silver Supporting Member
Posts: 490
Aussie_Chevy_Nut
Loc: Australia
Reg: 11-26-02
11-10-17 02:02 AM - Post#2713866    
    In response to larrybrowningmauldin

Hi Guys,
Thanks for all the suggestions, I will pull the sender out this week and report back what I find, Cheers, John



 
Carl1962 
"5th Year" Silver Supporting Member
Posts: 1201
Carl1962
Loc: Bungendore Australia
Reg: 04-01-10
11-10-17 02:35 AM - Post#2713869    
    In response to Aussie_Chevy_Nut

G'day John, is your 59 float the same style as in 62? I replaced my original sender unit a couple of years ago when the fuel sender potentiometer went kaput. I replaced the whole sender unit and fixed the fault and I kept the old sender with a perfectly buoyant brass float. It's yours if you want it. I think I can just pull it off the wire arm as there is a groove in the float.

Attachment: DSCN2178.JPG (2.06 MB) 0 View(s)




Cheers, Carl.

1962 SS Impala Sports Coupe

http://s465.photobucket.com/albums/rr18/1956Carlo s...


 
Aussie_Chevy_Nut 
"3rd Year" Silver Supporting Member
Posts: 490
Aussie_Chevy_Nut
Loc: Australia
Reg: 11-26-02
11-12-17 12:26 PM - Post#2714165    
    In response to Carl1962

Hi Carl,
Thanks for the offer. I'll take you up on that if I may.
I am of course assuminng that the float is the culprit.
I will know for sure once I get the sender unit out. Nota job I am looking forward to!
Cheers,
John




 
Carl1962 
"5th Year" Silver Supporting Member
Posts: 1201
Carl1962
Loc: Bungendore Australia
Reg: 04-01-10
11-13-17 01:41 AM - Post#2714212    
    In response to Aussie_Chevy_Nut

No worries John, must be harder than a 62, I can get it out of my 62 in about 10 mins. I had lots of practice chasing the problem with my fuel system. Send me an email when you get yours out I'll send this one up to you.

Cheers, Carl.

1962 SS Impala Sports Coupe

http://s465.photobucket.com/albums/rr18/1956Carlo s...


 
Hugomiller 
Forum Newbie
Posts: 34

Age: 66
Loc: Florida and UK
Reg: 05-02-17
11-14-17 03:21 AM - Post#2714323    
    In response to Carl1962

Anybody tried cork?



 
Aussie_Chevy_Nut 
"3rd Year" Silver Supporting Member
Posts: 490
Aussie_Chevy_Nut
Loc: Australia
Reg: 11-26-02
11-14-17 03:41 AM - Post#2714325    
    In response to Hugomiller

Cork floats but can break up into small pieces that could travel to a car by not protected by a filter. Never heard of a cork being used.



 
4dr 57 
"9th Year" Silver Supporting Member
Posts: 4458
4dr 57
Loc: Texas Hill Country
Reg: 11-10-04
11-14-17 07:14 PM - Post#2714418    
    In response to Aussie_Chevy_Nut

I was having a problem too until I got asend unit for Impala Bob's Classic Chevy Parts. It was set up right out of the box. I checked it with an ohm meter and it read real close to 0 at the bottom and 30+ at the top.

the eBay floats I've seen all show the float arm quite a way away from the pickup and that's waay wrong. They come that way too. Ask me....



 
This Forum is Sponsored by
1-800-IMPALAS  *  www.impalas.com
Visit Impala Bob's forum on ChevyTalk
Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

590 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.355 seconds.   Total Queries: 18   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 02:14 AM
Top