mean60impalagene
Contributor
Posts: 184
Reg: 01-31-13
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05-21-22 06:28 PM - Post#2841585
1960 Chevy impala gas tank sending unit. Is there a problem if you use 3/8 instead of 5/16? It has a 235 engine and cast iron transmission.
Edited by mean60impalagene on 05-21-22 06:47 PM. Reason for edit: No reason given.
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 DonSSDD
Silver Supporting Member
Posts: 7803
Loc: Nova Scotia, Canada
Reg: 08-21-01
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05-22-22 02:24 AM - Post#2841597
In response to mean60impalagene
No need to use the larger line but no problem not to use it. The 3/8 line was routed differently, see assembly manual. Factory installed on dual exhaust cars which would be 283/348, the routing kept heat away from the fuel line and ran through the frame tunnel and under the passenger side upper control arm. I installed it on my 59, 62, and 63.
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
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mean60impalagene
Contributor
Posts: 184
Reg: 01-31-13
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05-22-22 07:13 AM - Post#2841607
In response to DonSSDD
Thank you for your response. The sending unit line size is my question. I have a 5/16 unit in it now... What are the problems I will face on thee difference size? I am asking because there is a big price difference, Thank You again.
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Tony1963
Frequent Contributor
Posts: 1452
Loc: Orlando Florida
Reg: 07-09-18
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05-22-22 12:49 PM - Post#2841621
In response to mean60impalagene
No issue with the larger diameter pipe coming out of the sending unit. Keep in mind that somewhere you will have to drop 3/8ths to 5/16ths.
No issues as long as electrical and connection points are the same.
| People fear change because it threatens what they know, or what they claim to know. |
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mean60impalagene
Contributor
Posts: 184
Reg: 01-31-13
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05-22-22 02:24 PM - Post#2841631
In response to Tony1963
I am asking is it ok to go from 5/16 to 3/8 sending unit. There is a big price difference and lead me to ask this question... Thank You for your response
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DonSSDD
Silver Supporting Member
Posts: 7803
Loc: Nova Scotia, Canada
Reg: 08-21-01
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05-22-22 05:57 PM - Post#2841643
In response to mean60impalagene
Sorry for my misunderstanding, the pipe from the 3/8 sending unit will need to be attached to the 5/16 gas line via a rubber hose, I think it can be done. You may have to use 2 clamps if you use the 3/8 rubber line on the 5/16 pipe.
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
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mean60impalagene
Contributor
Posts: 184
Reg: 01-31-13
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05-22-22 06:46 PM - Post#2841649
In response to DonSSDD
I am sorry that I am bad at explaining what my question is. What performance and problems will I have to deal with? I have a 5/16 in thee tank now...Thee price difference is why I am asking if it is worth thee price. I am replacing thee tank. Thank You again guys
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DonSSDD
Silver Supporting Member
Posts: 7803
Loc: Nova Scotia, Canada
Reg: 08-21-01
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05-23-22 03:56 AM - Post#2841658
In response to mean60impalagene
No performance issues, the only issue is sealing the rubber line to the 2 different sizes of pipe. Is your 5/16 sending unit working good? If it is, I wouldn’t change it, the quality of reproduction sending units, especially the brass float.
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
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DonSSDD
Silver Supporting Member
Posts: 7803
Loc: Nova Scotia, Canada
Reg: 08-21-01
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05-23-22 04:02 AM - Post#2841660
In response to DonSSDD
One other thing, but a Spectra Premium tank, there are lots of poorly made cheap fuel tanks out there too.
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
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mean60impalagene
Contributor
Posts: 184
Reg: 01-31-13
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05-25-22 07:49 PM - Post#2841837
In response to DonSSDD
I am going with thee 5/16 unit and I picked up a doorman tank and plan on painting just thee outside... no sealer on thee inside. Thank you guys for your time
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Tony1963
Frequent Contributor
Posts: 1452
Loc: Orlando Florida
Reg: 07-09-18
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05-26-22 10:33 AM - Post#2841878
In response to mean60impalagene
I do not recommend painting the outside unless it is bare steel. Aren't those galvanized?
| People fear change because it threatens what they know, or what they claim to know. |
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mean60impalagene
Contributor
Posts: 184
Reg: 01-31-13
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05-27-22 02:35 AM - Post#2841906
In response to Tony1963
It should not hurt it to paint it... your reason not to paint thee outside?
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