Short cam chainShort cam chainPutting new cam chain on overhauled CA77 motor, old chain was sloppy. New KCM 219 with 94 links that I counted. Old chain also had 94 links. The new chain comes up one link short, see pic. Checked the crank sprocket and there is no bunching up. All the parts are the same ones that came off at disassembly. All the slack is taken up and the tensioner is not yet in and the rollers look to ride on the sprockets properly. I can bust the old chain and add on so it is long enough, but why should I! Any suggestions,comments?
Re: Short cam chainGet in touch direct. ......................................lm
Thanks for the help LM. At first glance it did not look like it would stretch that much, but it did. Only thing is you didn't tell me it took 3 hands and a contortionist helper. To replay the solution to the 3/4 tooth too short cam chain, position the chain on the cam sprocket from the back up over the top, with all the timing marks in place. Snug down the cylinder and head using several washers and nuts. Have the front side of the chain just so the it can catch a tooth or two. You can't let it engage the sprocket here so you can "jump" the last tooth. Pry the last link with a small screwdriver using the head top as a fulcrum up into the last sprocket valley (tooth root). Have the master link ready (I held it with forceps so as not to drop into the crankcase). Watch that the back portion of the chain does not pop off the cam sprocket everything is tight as a rubber band!!!!!! Took me several tries and you have to remove the wires used to bring up the chain from the crankcase in order to put in the link. Turned the crank over several times to make sure the marks stayed and then buttoned up the top. Piece of cake!!!
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