Com' On PO - Dangerous Fuel Lines

[BlackedOut67shorty]

There is a very big difference in the quality of high pressure rubber hose and the crap they sell on the spools in advance auto zone....

[Fitz]

Originally Posted by BlackedOut67shorty

There is a very big difference in the quality of high pressure rubber hose and the crap they sell on the spools in advance auto zone....

Yes, there is! US Coastguard safety standards require the use of a Coast Guard certified rubber hose between the mechanical fuel pump and carburetor on carbuerator equipped engines due to metal fatigue and stress fractures in metal lines made from various Aluminum alloys, Mild Steel and Stainless steel. That hose must meet SAE standard J1527. In that application it is impervious to ozone, alcohol, gasoline, diesel fuel, diesel fuel additives and hydraulic fluid (brake fluid). Properly attached so it does not come in contact with rotating parts of the motor or motor accessory drive, or the hot exhaust manifold this tubing is as safe or safer than metallic tubing.

[davepl]

Originally Posted by Fitz

Yes, there is! US Coastguard safety standards require the use of a Coast Guard certified rubber hose between the mechanical fuel pump and carburetor on carbuerator equipped engines

I'm not trying to bust you on this, but can you provide a link?

I'm skeptical because I can understand a marine application needing a flex section between tank line and pump, but why between pump and carb? It makes no intuitive sense to me, anyway.

Between the vessel and pump I can see. Or if the pump isn't attached to the engine, then ok.