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Fuel supply

B

BroT

Member
When I take fuel line loose at carb and turn valve on I get a trickle like flow then a full flow after apprx 5-10 sec then back to trickle. Vent or valve?
 
Move on back up the line and try there. You just keep going back till you find the obstruction.
 
Loosen or remove the gas cap, then try it.
If it works with the cap loose, you have a plugged vent.
 
I have line off and it is clear. Ordered new one anyway. Took gas tank off...again tank looks real good inside. The only thing is my valve stem on bowl assembly is missing the washer and looks like part of rubber gasket missing. It was a new assembly
 
Make sure the Fuel cap (Buy clean Fuel and Keep it Clean) has its vent hole clean. If clean, Valve to stnk obstruction. Jim
 
I had about the same thing with a farmall bout ran me batty. finally I found a small hard shell bug just right to be sucked out of the tank into the top of the fuel bowl assembly . couldn't see it looking down in the tank I now run those little in tank ford model A screens on every thing I own
 
Thanks terry t . Are you talking about down the tube
top of the fuel bowl? Also there was no screen on
that tube as I have seen
 
"Already did the fuel cap test fellas"

Then you've ruled out the vent and are looking for an obstruction.
Where that might be kind of depends on what make and model
tractor you are working on, but generally near the tank outlet.
 
It?s a 52 8n and I have tank out and bowl assembly
off and nothing in hole ...at least at this time
 
(quoted from post at 19:42:09 11/11/19) When I take fuel line loose at carb and turn valve on I get a trickle like flow then a full flow after apprx 5-10 sec then back to trickle. Vent or valve?
Click to expand...

First thing many of us old tractor "hacks" would have done would have been to remove the fuel cap, then grab the shop air hose and a blow gun and give a quick puff of 120 psi compressed air into the fuel line.

NOT 100% safe, not politically correct, perhaps not a permanent fix, but the tractor would have been running 5 minutes later, and no new fuel line would have been ordered.

YAMMV.

(Don't try this at home/for professional use only.)
 
The sediment bowl on those Fords had two openings.

Two full turns open is the main/normal setting which draws fuel through
that little pipe you can see standing up that is surrounded by a screen.

Fully open is the "reserve" opening and draws fuel off the bottom
of the tank which is more likely to be plugged with rust or dirt.

You could try each position and see if one works better than the other.

wm_2NAA9155B.jpg
 
We had that problem on an irrigation pump. would shut off at unusual intervals. After a lot of trouble, we discoverde a piece of "scotch" tape in the fuel tank. would periodically get sucked over fuel intake port on the tank. Haad a Farmall that would stall at inconvenient times. Rust in tank problems. Cleaned tank as best I could, took off sediment bulb assy and forced a piece of car radio antenna in the inlet, effectively raising the onlet about an inch. Solved that problem.
 
Check in the brass fitting in the carb that your gas line go into. sometimes a screen attached to this fitting. John
 
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