| What is the symptom of plugged fuel filters. [message #219341] |
Tue, 20 August 2013 21:43  |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma:
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Senior Member |
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Lots of developments:
Yesterday I got new tires for the coach. 225/75-16 rag wall.
I pulled the alternator and had it checked by the old man who's worked on starters and alternators for SIXTY years. Alternator is fine...he ran it on the tester for 10 minutes and the needle never moved.... Still have the flickering. Disconnected the axillary air pump thinking that might be it...no. hummm He requested I bring the coach down to his shop and he'll check things. Wouldn't let me pay him for his time.
Installed the Patterson distributor and wires that came in yesterday. WOW! WOW! HUGE difference right out of the box. Very smooth, noticeable increase in power. Amazing.
Installed the inner fender liners and went for a drive. I'm speechless (and that's really rare for me  ) at how much better the coach rides on the new tires. Vastly quieter and smoother. Even steers better.
It ran so good I took another quick run around the neighborhood before supper...almost didn't make it back.
Just driving through a nearby subdivision...everything fine and then she coughed, and backfired through the carb a few times, then died. Checked to make sure the distributor hadn't moved....no. Still where I'd left it.... (I'd marked the hatch aluminum) Carb has gas. I can see the fuel squirt in the primaries. I can re-crank it but much RPM over 1000 and it coughs and dies. It didn't help that I was on a hill. However, I was able to get it to the top of the hill by repetitively starting and going 10-20 feet before it died. From the hilltop, it was downhill or flat back to my driveway and I made it. (Thank you Lord!)
My buddy thinks the carb is leaning out because a jet is plugged. I've got a rebuild kit and we're going to do the carb tomorrow. Sometimes, it belched flames back through the carb.
However, it struck me that perhaps I have a plugged fuel filter? I actually have two filters. One in the line before the fuel pump and one at the carb. Both have about 2000 miles on them. When the coughing/backfiring started I was on the backup tank which has an electric fuel pump. Thinking the electric pump might be bad, I switched over to the mechanical pump but there was no change in symptoms. I was thinking that if the filter is restricted, it might be letting enough gas through to get some in the bowl after the engine died which might explain why I saw the gas squirt.
Advice requested please.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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