Thread: fuel delivery issue?

Originally Posted by Vern

Pretty sure I found it, my fuel return return line from the injectors back to the filter broke, so I joined it with some rubber hose, just guessing it was sucking in air there. Not sure how I'm going to fix it better

Either a new return line or leave the rubber hose there - that should help the vibration issue which causes the return line to crack.

Yeah I need to find a better 4mm hose, its just a piece of silicon hose which is quite soft.

Well this is still happening, grrrr. Better stick it on the hoist tonight I think

Could it be fuel pump?

Possible. The primer also fails and starts sucking in air.

Engine off, pressurise the whole fuel lines and see what leaks.

I think its a fuel blockage, it started to die at exactly the same spots as last time I travelled the same route. Although on the way home it stopped completely, like it was out of fuel, kept trying to start it but nothing, after a few minutes it started to chug a bit, then fired up, was rough for a while then came good, sat pretty close to the governor for the last 2 k's home.
It will go good for a few k's then start to chug like its running out of fuel, so I wait a while (I think for it to fill up the filter bowl again) then off I go again. Goes better when flogging it (sucking fuel through harder??).


Anyway, will get the bars back on then stick it on the hoist and pull some bits off.

Originally Posted by Vern

I think its a fuel blockage, it started to die at exactly the same spots as last time I travelled the same route. Although on the way home it stopped completely, like it was out of fuel, kept trying to start it but nothing, after a few minutes it started to chug a bit, then fired up, was rough for a while then came good, sat pretty close to the governor for the last 2 k's home.
It will go good for a few k's then start to chug like its running out of fuel, so I wait a while (I think for it to fill up the filter bowl again) then off I go again. Goes better when flogging it (sucking fuel through harder??).


Anyway, will get the bars back on then stick it on the hoist and pull some bits off.

Sounds like a block. An air leak leaves you pumping the feed pump for a few minutes every time it stops.