fuel lines

Maintenance advice to keep your Spider in shape.
KWL82
Patron 2018
Patron 2018
Posts: 48
Joined: Mon Sep 19, 2016 9:48 am
Your car is a: 1982 spider

fuel lines

Postby KWL82 » Tue Feb 21, 2017 4:34 pm

i need to replace rubber fuel line on my 82. going to get fresh filter too. question. is there a meaningful difference in hose diameter? one vendor sells an 8mm hose but another vendor says ONLY use the 7.5mm fiat originally supplied. does it make that much a difference? thanks in advance

spider2081
Patron 2024
Patron 2024
Posts: 2967
Joined: Fri Jan 27, 2006 11:45 pm
Your car is a: 1981 Spider 2000
Location: Wallingford,CT
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Re: fuel lines

Postby spider2081 » Tue Feb 21, 2017 7:33 pm

Using online conversion calculations shows

7.5 mm = 0.29527"
8.0 mm = 0.31496"

So there 8mm ID hose is about 0.020 larger that the 7.5 mm hose. Personally I have been using an 8 mm hose for all the FI lines on my FI Spiders with no issues.


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