Moderator: SteveM
frd1952 wrote:OK, I get the water cooled and 2 stroke (glad to know that....a) what type of fuel should I use, and b) does the water outlet fitting need any tubing on it when it runs (hopefully), and c) what is the fitting for on the lower unit if you know )? Any idea what model this old motor is and where I can get any diagrams, specs, etc ?? Thanks a lot !! F
frd1952 wrote:Steve, Yep it is the crankshaft that is frozen...pics are at >>> http://www2.snapfish.com/thumbnailshare ... =161727161 >>>.I have it just in the crank housing, with carb off. Soaked in gas overnite, now have it doused in Liquid Wrench. I believe it should turn pretty freely by putting in the threaded shaft for the starter cone/flywheel and turning it there, or by turning it from the bottom with the pin that goes into the back of the piston...correct? Should I be able to knock the entire crank shaft assy out of the housing and thru the bearing at the top, how ? Can I try vice grips or something to turn the crank and if so grab it by the threaded shaft on top (where the cone attaches) , or by the pin on the bottom that goes into the back of the piston ?Neither place can I budge it at all...does look a little rusty/dirty espec when I look close up at the pictures of the inside...see pics. Any ideas on how to free this crank up, assuming it should spin/turn pretty freely ? I have the old model, per the spec sheet, with the set screws that held the carb in the carb body throat (now all removed). Piston moves in the cylinder nicely and some lube in there, and drive shaft well lubed and looks in good shape. Ideas on the crank welcomed...My crank does NOT look exactly like the one in the spec sheet (surely mine is older), and on the bottom has another spacer or bearing and the pin that grabs the piston looks like it is pressed in vs. the spec sheet model, but pretty similar....thanks. F
frd1952 wrote:Steve, I am a little confused. In the pictures titled Old K&B..8, and 9, I think what is shown is the crankshaft inside of the crankshaft housing...in my terms at least, m/b wrong...the housing is a solid piece of alum tubing type piece with the frontal port where the carb slides in.
On one end of the shaft is where the treaded pipe/shaft goes that the cone sits on, and on the bottom of the shaft where it sticks out beyond the housing is what looks like a bearing right next to the bottom of the housing (this does spin) and then next to that (as you go down towards the piston & prop) is the crank pin that catches inside of the piston. I am wondering how to get that crank assy out of the housing piece, as I think that is necessary to see how badly it is rusted or whatever and clean it out.
Right now neither the cone, nor the final part at the bottom with the pin in it that grabs the piston, will turn. I think they (cone, threaded rod, crank shaft inside the housing, and the part at the very bottom of this little assy, are connected and should all spin inside the housing and the bearing at the top, and what I think is another bearing near the bottom....do I have this correct
, and what do you mean about taking the crank out from the back (is this what I am calling the "bottom" ?...as I feel it is lower on the motor as the motor stands up), and are you suggesting if needed to heat up the housing gently with a torch and then trying to tap/squeeze the shaft out by pushing on the top and forcing it to come out the bottom (towards the piston end) ? Thanks, Frank
frd1952 wrote:Will that circular part with the pin, actually come off of the shaft by itself, and separate away from the shaft and the lower bearing that I think is just above it, or is it really permanently attached to the shaft going up through the housing to where the treaded rod screws in at the top of the shaft, for the cone to attach to?
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