Fun, Not Fun, Fuel hose |
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Fun, Not Fun, Fuel hose |
NARP74 |
Jul 20 2024, 08:44 AM
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#1
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Senior Member Group: Members Posts: 1,172 Joined: 29-July 20 From: Colorado, USA, Earth Member No.: 24,549 Region Association: Rocky Mountains |
For a 3.2 conversion that I was trying to bring out to a meetup on Sunday. Relocating my fuel pump to a better up front location, under the steering rack. Redoing some of the hose connections to make them longer. 8mm, 10mm for most of them from the tank and the supply and return lines in the car.
The Bosch fuel pump I have needs 12mm, maybe 13mm to get over the bulge. I have; 5/16 hose which is 7.8mm, good enough for the 8mm connections. 3/8 which is 9.5mm, good enough for the 10mm connections. I tried everything to get the 3/8 to stretch over the 12/13 mm needed to install on the feed side of the fuel pump. I tried heating in the sun on a black car, lazy way. Then I tried a heat gun. Then I tried needle nose pliers to stretch the hose opening out. Tried alcohol to slip it over. Nothing I did would get more than a 1/4 over the fuel pump inlet and then it would bunch up and not budge any further. Then I went to the store and bought some 1/2 inch which is 12.7mm. Fits great over the Bosch fuel pump, but is too sloppy over the 10mm supply line from the tank. And I don't have a fuel hose clamp that big yet. What's an idiot to do? I spent a day on this and am not much further along and I still need to wire it! All of the hose is the good stuff from NAPA, Gates Barricade for fuel injection. Help |
NARP74 |
Jul 22 2024, 09:12 AM
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#2
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Senior Member Group: Members Posts: 1,172 Joined: 29-July 20 From: Colorado, USA, Earth Member No.: 24,549 Region Association: Rocky Mountains |
@Superhawk996 not attached to it at all. It was on the car when I bought it, although mounted poorly and wired even worse. I agree that 12mm is causing extra connection issues.
Bosch 0 580 464 069 |
Superhawk996 |
Jul 22 2024, 09:44 AM
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#3
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914 Guru Group: Members Posts: 6,469 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch |
@Superhawk996 not attached to it at all. It was on the car when I bought it, although mounted poorly and wired even worse. I agree that 12mm is causing extra connection issues. Bosch 0 580 464 069 I see. So fixed inlet. Food for thought: That is a turbine pump vs the common 044 style roller element pump. Turbine pumps are typically more efficient and quieter but not by much. Turbine pumps sometimes can have a high pitch whine that I personally find “noisier” than the roller pumps but that may just be nuance if my own hearing sensitivity to certain frequencies. YRMV. Turbine pumps are more prone to ejecting garbage into the fuel system if the turbine gets compromised. Turbine pumps are the most sensitive pump design to contamination. If it were me, I’d seriously consider moving to a 044 / new “200” roller element pump. This gets you: An inlet that allows you to choose 10mm / 3/8” nipple. A pump that is more robust to external fuel contamination |
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