Fuel lines sucking air,how to detect?

Anthony K · May 23, 2010

Any low tech suggestions on how to detect fuel lines sucking air,especially intermittent leaks engine speed related,and how to pinpoint those leak location,Thanks

OldMachinist · May 23, 2010

It could be the pick up line is cracked in the tank or the pick up screen is clogging up. Does it do it when the fuel level drops below a certain point(cracked line)? Is the primer bulb sucked flat when it acts up(clogged pick up)?

skidsteer.ca · Jun 8, 2010

OldMachinist said:
It could be the pick up line is cracked in the tank or the pick up screen is clogging up. Does it do it when the fuel level drops below a certain point(cracked line)? Is the primer bulb sucked flat when it acts up(clogged pick up)?

Install a clear return line through the cab where the operator can monitor it. Submersing the return line in a bucket of fuel is a good stationary test. There should be no air bubbles in either case.
Ken

Fuel lines sucking air,how to detect?

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