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Massey TE20 fuel tap problem

5115 Views 3 Replies 3 Participants Last post by  Tractor/Ant
I have been working on a friends petrol/TVO TE20 and have come up against a problem. Fuel comes out the tap fine and freely. However when I install the glass fuel bowl and tighten it up the fuel stops flowing, remove it again and starts to flow any Ideas? :dunno:
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Tractor/Ant, there may be a couple things to check that can cause this. (if you've already tried them, belay the suggestions :D )
If it's got a good flow to the filter, that would likely rule out a clogged fuel screen on the fuel on/off/reserve valve on the tank. Make sure the screen in the top of the filter (if it's still up there) isn't partially clogged.

1) make sure the fuel bowls gasket isn't covering the intake/output ports on the filter. (I made a cork gasket once that did this).

2) open the fuel line at the carb with the bowl installed and see if it flows. Sometimes air pressure can vapor lock a line. If it doesn't flow and #1 isn't the problem, make sure the line from the filter to the carb isn't blocked.

Good luck
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Have you tried opening the fuel valve with the tank cap off to see if you have fuel flow? Had a small engine with a clogged vented cap. Engine ran for a short time then shut off, open gas cap or let set for a short for a few mins and shut off starved of fuel.:banghead3 Took me awhile and some head scratching to figure that one out!

Have you taken the fuel line loose at the carb. and seen if the fuel will continue to flow into the sediment bowl? Air in the fuel line could be stopping the flow of fuel into the glass bowl.

Good luck! :trink39:
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I have checked both caps and there fine, but the fuel line could may be the problem as its only happened since I removed the tank as for some reason fuel would stop flowing so I suspected blocked filters in the tank but they were fine so make sense air in fuel line. Ill let you know if it works and take a picture of it:thanku:
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