[AT] OT - JD STX38 fuel problems - Update

Tue May 18 20:53:40 PDT 2004

Mike can you take a section of tie wire and put in side the hose from 
filter to tank be sure it is inside both tank and filter. That would stop 
and thing that may be floating and you would know it was not in that 
section. [just a thought]
R Fink
PA

At 08:25 PM 5/18/2004 -0400, you wrote:
>Last night when I was experiencing the problem, I pulled the fuel line
>off before the filter, and I had good flow. I dribbled gas into the
>filter to fill it up thinking maybe it was a vapor lock type situation.
>After mowing a while more, I noticed the filter was dry again. This time
>the mower didn't die but it had to be close because I couldn't even see
>the gas trickling in with the engine running. Tonight I went out, and the
>filter was full again. I did fish a little piece of leaf out of the tank,
>but that doesn't explain why I had good flow from the tank last night.
>Here's an update to answer some of the posts:
>
>- running with the cap off - no change
>- filter is fine, and has only had about 2 gallons of gas through it
>- shutoff valve is open, and the filter is pointed in the right direction
>- I must have an older model because I don't have a solenoid on the carb
>- It is a gravity feed system, no pump
>- Bowl on the carb is clean
>
>Any more ideas? I'm hoping it was that little leaf, but it doesn't make
>sense.
>
>Thanks,
>Mike
>
>
>On Mon, 17 May 2004 22:21:01 -0700 "Dean VP" <deanvp at att.net> writes:
> > Mike:
> >
> > I'm a little confused now. Previously you mentioned the fuel flow
> > before the
> > filter was dribbling and the filter was dry, I must have
> > misunderstood. Is
> > this a gravity feed system? Or is there a fuel pump involved? I have
> > the
> > parts catalog on the STX38. It looks like gravity feed to me.
> >
> > Here are some more things to check.
> >
> > 1.) Is gasoline cap good?
> > 2.) Has the new in-line gas filter plugged up again?
> > 3.) Is the shutoff valve completely open? Key 14 on page C22 of the
> > parts
> > book
> > 4.) What does the solenoid do in the carburetor bowl? Does this just
> > let
> > fuel flow when the switch is on? Doesn't look like a pump. Is this
> > solenoid
> > acting up? Wiring loose or corroded? This may be where the problem
> > is. Is
> > the carburetor bowl clean inside?
> >
> >
> > Dean A. Van Peursem
> > Snohomish, WA 98290
> >
> > What people can dream, people can do! George W. Bush
> >
> > www.deerelegacy.com
> >
> > http://members.cox.net/classicweb/email.htm
> >
> >
> >
> >
> > -----Original Message-----
> > From: at-bounces at lists.antique-tractor.com
> > [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Mike S
> > Meulenberg
> > Sent: Monday, May 17, 2004 9:47 PM
> > To: at at lists.antique-tractor.com
> > Subject: Re: [AT] OT - JD STX38 fuel problems
> >
> > OK, here's what I've done so far, and still the problem persists:
> > - removed the tank, and flushed it several times to be sure it's
> > clean.
> > The first time I did it, I found a piece of
> >    leaf that I was sure was causing the problem.
> > - replaced the fuel line and filter, and blew everything out with
> > compressed air.
> > - after the occurrence tonight, I pulled the fuel line just before
> > the
> > filter, fuel flow was fine.
> > - it seems like the engine/carburetor doesn't have enough pull to
> > suck
> > the gas through the fuel filter.
> > Any ideas??
> > Thanks,
> > Mike
> >
> > On Mon, 17 May 2004 21:01:44 -0700 "Dean VP" <deanvp at att.net>
> > writes:
> > > Mike:
> > >
> > > There is a possibility that there is some junk in the tank that is
> > > partially
> > > blocking the fuel line prior to the filter. One way to check this
> > > out is to
> > > blow air pressure backwards through the fuel line towards the tank
> >
> > > prior to
> > > the fuel filter. That will clean it out temporarily but if you
> > have
> > > junk in
> > > the tank it will eventually plug again. But if blowing the line
> > > clean
> > > changes how long it runs then you have a pretty good indicator you
> >
> > > have a
> > > dirty gas tank. Could be a plugged cap as John mentions or could
> > be
> > > a
> > > collapsed or crimped fuel line, but I'm betting on junk in the
> > tank.
> > >
> > >
> > > Dean A. Van Peursem
> > > Snohomish, WA 98290
> > >
> > > What people can dream, people can do! George W. Bush
> > >
> > > www.deerelegacy.com
> > >
> > > http://members.cox.net/classicweb/email.htm
> > >
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: at-bounces at lists.antique-tractor.com
> > > [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Mike S
> > > Meulenberg
> > > Sent: Monday, May 17, 2004 8:36 PM
> > > To: at at lists.antique-tractor.com
> > > Subject: [AT] OT - JD STX38 fuel problems
> > >
> > > Hi All,
> > > I recently bought a little JD STX38 to cut my lawn. I have a
> > problem
> > > with
> > > it running out of fuel in the fuel line even though the tank is
> > > full. I
> > > replaced the fuel filter after I bought the tractor, and after
> > that
> > > it
> > > would run out of fuel after 5-10 minutes of mowing. I thought I
> > > solved
> > > the problem by filling the filter with fuel, thinking it was like
> > a
> > > vapor
> > > lock. I mowed a couple times after that with no trouble. Now
> > tonight
> > > the
> > > problem reared it's head again. The filter is dry as can be, and
> > the
> > > gas
> > > only dribbles into the filter. Any thoughts as to what might be
> > > going on
> > > would be appreciated.
> > >
> > > Regards,
> > > Mike
> > > _______________________________________________
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> > >
> > >
> > >
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