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Topic: '78 Fuel Hose Replacement

in Forum: C3 Fuel, Emission Control, and Exhaust Systems


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'78 Fuel Hose Replacement (1/3)
 12/28/21 1:42pm
Kentvetteuk
Limited Member
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, - France

Vette(s):
1978 L48 Auto. Red with Oyster Leather interior. Owned since 1990.


Joined: 8/21/2002
Posts: 101

Hi

I need to change the rubber hoses from the hard lines to the fuel pump on my '78 as one, the return I think, is leaking.

I have a few questions:   

Will I need to drain the fuel tank to do this?   

If I decide/discover that the rubber lines at the tank end also need changing, is that possible without removing the tank, working through the filler aperture to get them off the sender?

Again, necessary to drain the tank?

I've ordered the new front hoses (everything is taking longer and is more expensive since the stupid UK Brexit triggered import rule changes here in Europe!) but have yet to order the rear hose, which I appear to need to buy "per foot".  I know I need ethanol proof line, and I understand these are 1/4 and 3/8 inch ID hoses, but any tips on what outside diameter I need for them to be safe?

Thanks!

 



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Stephen J Irons
Corvette Club France
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Corvettes of Southern California
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Re: '78 Fuel Hose Replacement (2/3)
 12/28/21 4:26pm
F4GaryGold Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1427

Seems if you gently clamp the hose back at the tank that goes to the hard line (if it is accessible), that should minimize the amount of fuel that will leak out of the front hoses.  

Not sure about changing the rear hoses.



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Re: '78 Fuel Hose Replacement (3/3)
 10/15/22 5:44am
Kentvetteuk
Limited Member
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, - France

Vette(s):
1978 L48 Auto. Red with Oyster Leather interior. Owned since 1990.


Joined: 8/21/2002
Posts: 101

A belated up-date on this!  

I did in fact manage to change the front rubber hoses with almost no fuel loss!   I had some correctly sized plugs handy and as I pulled the rubber hoses off the metal lines, quickly plugged them.  That allowed me to work on the pump end of the hoses.  I just repeated the process in reverse when putting the rubber hoses back on - just a quick swap of plug for the hose!

The hardest part was dealing with the stock spring clips, made no easier by having a pair of pliers apparently made for the job!🙄



______________
Stephen J Irons
Corvette Club France
CCCUK Lifetime Member
Corvettes of Southern California
NCM Family Member
Red Corvettes Have More Fun!
Our Sponsors help support C3VR