1
Collapsing Fuel Return Line Fri Feb 09, 2018 4:42 pm
MartinW
Life time member
A few week ago I suffered intermittent bad running, this was due to the fuel return line collapsing where it bends at 90 Deg to enter back into the tank. I tried a few solutions but it eventually collapsed again, the collapse mainly occurred on really hot days in traffic around 39 C. I tried at least 5 different ways of routing. I removed the fuel cooler which was causing one of the problems due to the fuel line needing rerouting. I trimmed back the line about 1.5" to do away with the point where it was collapsing. All these measures worked from anywhere from a couple of days to a couple of weeks. I have it cured at the moment with a rather ugly solution. I extended the hose by about 10" with a barb joiner ran the hose up through the steering head and looped it around and back into the tank. All the bends are now large with no possibility of kinking, and the K75s fairing covers it all up. However I went in search of springs to go over or in the fuel hose in order to solve the problem,and make it a little bit neater. A guy I deal with at Pirtek put me onto these Unicoil which are a modern interpretation o the old spring trick. Autobarn has them in various sizes $20.00 Au or Ebay has the identical ones for $8.00 Au plus $8.00 Au postage. https://www.ebay.com.au/itm/5-16-Stainless-steel-UNICOIL-Hose-coil-suit-hose-OD-14-16mm/152678074659?
When it arrives I'll post the results, although I can't see there being any problems with it at this stage.
Regards Martin.
When it arrives I'll post the results, although I can't see there being any problems with it at this stage.
Regards Martin.
.......RT did use something similar on the fuel return line just after the FPR, a couple of years ago.....succes all the way back to the tank.
The local Pirtek guy is really helpful, and I really don't buy that much off him.
......Sorry Blakey......at least it was on a RT.
