Maintenance & Technical > KX500 Original
Water Pump Drive Gear Snapped Off Crankshaft!
tobys 2 strokes:
Why not just weld something to the end that will attach to your slide hammer. welding on it would also tend to shrink it which would help free it. I hate drilling broke bolts so I always try welding a nut on them first If you have a wire feed you should be able to keep the crank from getting to hot.
kxpegger:
--- Quote from: tobys 2 strokes on December 18, 2012, 08:38:07 AM ---Why not just weld something to the end that will attach to your slide hammer. welding on it would also tend to shrink it which would help free it. I hate drilling broke bolts so I always try welding a nut on them first If you have a wire feed you should be able to keep the crank from getting to hot.
--- End quote ---
It would be very difficult to weld something on to the broken shaft as it is recessed into the crank quite a bit. The end of the crank hole is tappered and the shaft is about another .080 or so inside. I checked with my machinist today and he does have some EDM capability but says it is very messy because of the coolant used. He's not sure if he can do with the crank still installed in the cases but said it would be no problem at all if the crank was out. I have to tear the top end off because of the sticking exhaust valves so I might as well just keep going! All this because of a $17.00 part failure!!!!!! :-o
Klammer:
Give these guys a call. Their ad says they remove broken bolts.
A&A auto machine shop
3297 Las Vegas Blvd. N.
Las Vegas, Nv. 89115
702 307-2535
The EDM process that your machinist has is called wire EDM and requires a coolant bath. The EDM process that is used by broken bolt and tap removal services does not require coolant and is much more portable.
kxpegger:
--- Quote from: Klammer on December 19, 2012, 11:53:26 AM ---Give these guys a call. Their ad says they remove broken bolts.
A&A auto machine shop
3297 Las Vegas Blvd. N.
Las Vegas, Nv. 89115
702 307-2535
The EDM process that your machinist has is called wire EDM and requires a coolant bath. The EDM process that is used by broken bolt and tap removal services does not require coolant and is much more portable.
--- End quote ---
10-4! And thanks again! I'll take a look.
meat_man:
Theres an EDM that we use called a "hole popper". Not sure what the technical name is but it is used to put holes in metal by sending voltage/current through an electrode. A lot of mold making shops have them and they require no submersion fluid. This would probably be the best bet unless you have carbide bits and a steady hand.
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