Fuel line blockage
Posted: Sun Oct 06, 2013 8:26 pm
My Minor 1970 LCV has not been run for about three years. All the petrol which was in the tank has evaporated long time ago, leaving tank bone dry. What else would one expect in Cyprus! The fuel pump works properly and tries to suck (new) fuel through but can't.
I disconnected fuel line from pump and blew compressed air down it expecting to hear bubbles in tank...nothing! Just a lot of air pressure blow back when removing air pistol.
Disconnected fuel line at tank. Can blow air through easily from front. No blockage there.
Tried blowing air into tank from disconnected fuel line point hoping to hear bubbles...nothing.
My questions now are:
Should I expect to hear bubbles?
In the short pipe which bends within the tank, is there something like a ball-bearing non-return valve?
Its the only thing I can think is blocking this bit of pipe, possibly stuck in place by the dried up fuel?
Or could the filter be clogged?
All advice much appreciated.
John
Cyprus
I disconnected fuel line from pump and blew compressed air down it expecting to hear bubbles in tank...nothing! Just a lot of air pressure blow back when removing air pistol.
Disconnected fuel line at tank. Can blow air through easily from front. No blockage there.
Tried blowing air into tank from disconnected fuel line point hoping to hear bubbles...nothing.
My questions now are:
Should I expect to hear bubbles?
In the short pipe which bends within the tank, is there something like a ball-bearing non-return valve?
Its the only thing I can think is blocking this bit of pipe, possibly stuck in place by the dried up fuel?
Or could the filter be clogged?
All advice much appreciated.
John
Cyprus