Anyone got any tricks on how to remove the pin/axle that holds the floats on to the body of a bing carb without brakeing off one of the ears?
Doug Bridges
73 Jackpiner
74 Jackpiner/FrankenPenton project
It should just be a pin that just slips out of the ears..... Use a very small wire nail as a punch and tap it out. One side of the pin should be kerfed so it becomes a friction joint.
Steve Minor
Wilmington, NC
I have never had a problem removing the pin. I use a nail set and I just push it out. It should just come out real easy... why the nail set? because it easy to hang on to...but almost anything that will fit is a little smaller than the pin.
Thom Green,Still crazy after all these years!
76' 250 MC5 (orginal owner)74'
250 hare scrambler (project bike)
Doug,If you have one that's frozen/seized real bad you may want to brace the tangs the pin fits into-i've used a set of expanding pliers(an old suzuki special tool for splitting cases on 4 cyl. streetbikes)with flat smooth edges and a stud/nut on the handles you turn to expand the jaws,opened up to go between the tang tightly.That way if you have to smack it you don't break the tangs and buy a carb.A little heat and/or pentrating oil would be my first step though,and i use an automatic center punch that fits those pins nice,and if that doesn't budge the pin i install those pliers before the hammer comes out.I'm sure a nail is just fine too,just giving you some options on what works for me on stubborn ones.Good Luck,
Ric
ric emmal
Obviously you have a situation in which the float pin is stuck. Not all carbs have stock float pins. Some may be knurled or splined. Regardless of what should be, you need to remove it without damaging the carb (which can be costly). There are several ways of removing the pin. IF there is a knurl or little splines on the pin, it is most likely on only one end or the other, but usually not both. Try to look carefully and determine which end might have the knurl. Usually the pin is pushed through this end, rather than pushing the knurl through one hole, then the other. I would try to use small needle nose VISE GRIPS to grab any part of the pin and rotate back and forth gently to loosen it up. I am looking at a BING 84, and the pin is easily accessible between the pin posts. You might also consider removing the float completely by gently opening the part that wraps around the pin (the hinge). The pin will be entirely exposed for more grip if necessary. Consider cutting the pin close to the pin posts. Then use something to support the pin post while you drive the remaining pin out. Even if you have to make a small metal jig to clamp in a vise, with a hole to tap the pin through, your time will be spent wisely. Unless the metal is oxidized badly, I think you can successfully remove it. I would not like to see you have to get the TIG welder out. It's not luck; it's patience.
Just in case you break off a float pin leg. Bing charges $36.00 to repair them.2009 price. At least that is what my manual says. I just picked up the manual for $10.95. Great piece of litature. It covers most bing carbs.
G
72 six-day
Just be gentle! Maybe a little heat from a propane torch, you can try pushing on the pin once legs are heated, and it will be pushed out enough on the other side to grab it with pliers... thats how I recently extracted a troublesome pin from a Bing...
Are the pins serrated or larger on one end, a la Mikuni's?
1973 Penton Jackpiner
1982 Yamaha XT200
1982 Yamaha XJ650J Maxim
1987 Yamaha YZ490
2005 Honda CRF450R
All the above and try grabbing the pin between the float hangers with a slice of sandpaper and a small plier over the paper. Hold the plier tight and tap lightly in the direction away from the knurled side? Good luck.
GC
more kroil for a few more days...
Raymond
Down East Pentons
If this is a really sticking pin, you can cut it on both sides of the posts, grind it down to the aluminum, then try to knock it out gently. You could also center punch and drill it which will make removal less stressful for the aluminum. Let us know how the process is coming.