• Dribble dribble dribble

    From Snag@21:1/5 to All on Sun Mar 19 15:16:45 2023
    My carb has a case of the dribbles . New needle , correct float level
    - actually a tiny bit low . The carb has been cleaned , had a petcock
    screen rust away and gunk stuff up . I bought a kit , but found that
    nothing fits but the float needle . I suspect the needle seat is a bit
    corroded or rough , and it ain't replaceable . Saw in a Harley forum
    that it can be lapped to clean it up and wondered what to use . I'm
    thinking simple first , a small disk of scotchbrite pad on the end of a Phillips screwdriver . Or I can make a machined lap and use either valve grinding or diamond lapping compound , got both . Maybe just a dowel
    faced flat and loaded with lapping compound .
    It looks OK , but it's down in a small hole and hard to really tell
    what kind of shape it's in .

    Fresh bottle of Ezra 99 on the bar ... shots or mixed as you like it .
    --
    Snag
    "You can lead a dummy to facts
    but you can't make him think."

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Rick Begeman@21:1/5 to Snag on Sun Mar 19 16:55:33 2023
    On 3/19/23 1:16 PM, Snag wrote:
      My carb has a case of the dribbles . New needle , correct float level
    - actually a tiny bit low . The carb has been cleaned , had a petcock
    screen rust away and gunk stuff up . I bought a kit , but found that
    nothing fits but the float needle . I suspect the needle seat is a bit corroded or rough , and it ain't replaceable . Saw in a Harley forum
    that it can be lapped to clean it up and wondered what to use . I'm
    thinking simple first , a small disk of scotchbrite pad on the end of a Phillips screwdriver . Or I can make a machined lap and use either valve grinding or diamond lapping compound , got both . Maybe just a dowel
    faced flat and loaded with lapping compound .
      It looks OK , but it's down in a small hole and hard to really tell
    what kind of shape it's in .

      Fresh bottle of Ezra 99 on the bar ... shots or mixed as you like it .

    I'm of the opinion that it has not been vibrated enough.
    Seems to me that with vibration it would lap itself.
    I guess you could say its self lapping.
    But everyone has an opinion.

    Dribbling while its running or when parked?

    A pressurized fuel tank can do bad things too.

    --
    Ironhead Rick

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Snag@21:1/5 to Rick Begeman on Sun Mar 19 19:33:39 2023
    On 3/19/2023 6:55 PM, Rick Begeman wrote:
    On 3/19/23 1:16 PM, Snag wrote:
       My carb has a case of the dribbles . New needle , correct float
    level - actually a tiny bit low . The carb has been cleaned , had a
    petcock screen rust away and gunk stuff up . I bought a kit , but
    found that nothing fits but the float needle . I suspect the needle
    seat is a bit corroded or rough , and it ain't replaceable . Saw in a
    Harley forum that it can be lapped to clean it up and wondered what to
    use . I'm thinking simple first , a small disk of scotchbrite pad on
    the end of a Phillips screwdriver . Or I can make a machined lap and
    use either valve grinding or diamond lapping compound , got both .
    Maybe just a dowel faced flat and loaded with lapping compound .
       It looks OK , but it's down in a small hole and hard to really tell
    what kind of shape it's in .

       Fresh bottle of Ezra 99 on the bar ... shots or mixed as you like it .

    I'm of the opinion that it has not been vibrated enough.
    Seems to me that with vibration it would lap itself.
    I guess you could say its self lapping.
    But everyone has an opinion.

    Dribbling while its running or when parked?

    A pressurized fuel tank can do bad things too.


    It's not dribbling while running , but you can tell the float level
    seems to be high . There's fuel coming up around the accel pump stem and
    out of the air bleed . I'm going to pull the carb in the morning and try
    to get a look at the needle seat under magnification . I'll probably do
    some kind of cleanup on that seat while it's disassembled . Can't hurt .
    --
    Snag
    "You can lead a dummy to facts
    but you can't make him think."

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)