Chere,
Please hang on for our experts to get back to their computers. This is the 3-5
day
period with the lowest traffic on the forum since so many people are doing
their holiday
thing so intensely.
Information that will help the experts is your serial number and a description
of any
known changes in the fuel lines from the original. I'm a pilot-type, not a
mechanic-type.
I'm thinking this can't be behaving badly if the fuel lines are really, truly
clear.
1. Perhaps there's a minimal blockage in the fuel return line to the right
tank or a
minimal or intermittent blockage in the feed line from the left tank.
a. Try vacuuming the bottom of the left tank (heck, vacuum all three
tanks -
once you get the stuff to vacuum the tanks, you might as well do them all -
it's good to
do them every year or so). You vacuum the tank by using a tube attached to a
hose which
goes into a fuel can. You start the fuel flowing as a siphon then use the tube
to get
to the back and lowest spots of the tank and vacuum it out. Look especially
for flaking
off sloshing compound (which should never be in the tanks anyway) but clean it
well.
Inspect what comes out. If it looks clean, you could put it back using a Mr.
Funnel or
use it in your lawn mower or something.
b. If that doesn't work, do some more testing of the fuel lines
looking for
something that might be blocking the flow under some conditions but which
escaped your
previous check.
2. The restrictor is in the fuel line just after the fuel pump. This
restrictor limits
the fuel pumped to that which can flow down the overflow back to the main
tanks. It
still allows 5+ times the fuel that the engine could use at full power. (I'm
not
thinking this is a likely cause of the problem but I'm groping for possibles.)
Hang on for answers from the experts.
All the best,
Ed Burkhead
http://edburkhead.com East Peoria, Illinois
ed -at- edburkhead???.com (change -at- to @ and remove "???")
