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Old 07-18-2023, 05:42 PM   #1
Join Date: Mar 2021
Location: New England
Posts: 145
Year: 1999
Coachwork: Michael Corbier
Chassis: GMC Savana 3500
Engine: 6.5 Diesel
Fuel line problem

Corbi is out of action due to a lift pump replacement that has me frustrated. The issue is that I tried to use the existing metal to nylon hose quick connects. Tried to join the nylon hose without removing them. Realized that the bends were making kinks. Started over and removed quick connects. Made new lines on the bench but added 90 deg brass compression fittings. I did this to avoid kinks in the nylon tubing. They leak! Looks like I have to start over. Seems like a piece of rubber hose and clamps is the only way. Any advice, commiseration much appreciated.

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Old 07-19-2023, 09:41 AM   #2
Bus Geek
Join Date: May 2014
Location: West Ohio
Posts: 3,710
Year: 1984
Coachwork: Bluebird
Chassis: International 1753
Engine: 6.9 International
Rated Cap: 65
Rubber will dry and crack, and then you'll have air intrusion issues.

Nylon is the way to go. A little heat to soften it will make it bend easily. Even a bic lighter can make do. The push to connect fittings are available from a variety of manufacturers. We've got a kit for sur&r at the shop. You don't have to necessarily use them, but you do have to connect things in a way so as to not leak.

Air intrusion on an idi can be a nightmare, so good luck.
My build: The Silver Bullet
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