Posted by racered57 on June 12, 2021 at 18:05:37 from (47.182.22.172):
In Reply to: Inline Fuel filter posted by bsmart10 on June 12, 2021 at 15:47:35:
Quote: bsmart10 (quoted from post at 17:47:35 06/12/21) I installed a translucent in-line fuel filter in fuel supply of the Farmall H for my friend. Same tractor that had what we thought was a slow fuel supply, not allowing the tractor to keep running. The new inline filter was installed b/c the screen in the inlet pipe to the carb was damaged and no longer useable.
So, we noticed that the new filter does not get full of fuel. It levels off at about the outlet pipe/line position in the filter. I would have thought that when the float in the carb shut off flow, the inlet fuel line would fill up all the way back to the sediment bowl. Nope, apparently not. Why not?
We can see the fuel flowing into the filter (which is a good improvement) when the engine is running, but still the level in the filter never gets above the outlet line.
We do have adequate flow now to keep the tractor running, so we drove it up the road to see if it would accept loads, and it did just fine. All seems to be working now, even with the filter never really filling up with fuel....any ideas about this?
The filter will work until it stops up, restricted with what it filters.
If you want the air bubble gone, tilt the filter so the bubble can go uphill towards the fuel tank. Gravity will fill the void with fuel and push the air up. If your fuel line has up and down turns, the bubble will travel up but not back down, with slow gravity flow.
A fuel pump would push the bubble up or down, given adequate flow rate.
This post was edited by racered57 on 06/12/2021 at 06:12 pm.
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