I support Mick's suggestion, Bob.I am sure we can donate some parts for you Bob, out there the members have some spares, list out your broken bits and let's see if we can come together and find some parts for you to get you bike running again.....
Mick
2m sure you weren't a HARLEY mechanic?
...Picking nits; wouldn't worst out of true be found at 90 degrees to TDC BDC?
Brilliant.Can't believe I'm posting this. Had to take the "perfectionist me", park him in another room, and release crazy "shadetree mechanic me". This is one of those desperation moves, what can you lose?
The $0 Farmer's Field Fix
The idea here is to straighten the crank, get it good enuff to run better, sound better, last longer. Using only yer hard-earned mekanikal skills.
First would be to study up on crank rebuilding. Not to rebuild it, but to understand the crank and methods. Pile drive thru gggGary's crank thread:
http://www.xs650.com/threads/crankshaft-split-overhaul-assembly.31213/
All you're going to do is "lead hammer" smack the right flywheel back into line.
Careful, complete engine teardown, gonna re-use gaskets and rings. Pull the crank. Pull the rightside ball bearing. Use a case half as a truing jig. Gotta setup some sort of dialgauge to monitor the right (primary side) shaft.
Do the "lead hammer" thing, getting the right flywheel trued.
Reassemble the whole thing. Enjoy.
If considering putting some money into it, I suppose you could prioritize what it would need, using the "shadetree" rules-of-thumb. Maybe this list, sorted by bang-for-the-buck:
1- Gaskets
2- Rings
3- Rightside crank ball bearing
4- Clutch hub
5- Crank primary gear
(Okay, just had to get this outta my system)...
Ppl who are down that far into it and who can weld do weld the crank. Funny how they always talk about the bulletproof crank and the crank is the thing that tried to kill me too.2M..... would welding the pin in the crank be a good idea to keep it from slipping ?
2M..... would welding the pin in the crank be a good idea to keep it from slipping ?
Hey Bob,Xjwmx: you mentioned the crank alignment pins , on VW engines , the old pancake 4 cylinder one's they had the same alignment of the bearings... took me a while to figure out why the case halves would not go together pulled the crank back out and discovered the pins and holes in the bearings.... and Yes starting at one end and working your way down to the other you can get them in but it'a a time consuming job and takes a good feel for those pins !!!!!! I wasn't aware that the xs650 crank had that type of pin set up ...thanks for the heads up !
I'll probably try to save the crank myself....put new rings in it and do a valve job and maybe new crank bearings, at least on the right side as that is the side that transmits the HP....
I'm not sure but I think it came from the factory with that much crank wobble in it....but that really don't sound very possible...surely their quality control is better than that.... as far as I know it'a always made that noise....so maybe it slipped on the first starting ?
I have a dial indicator for 2 stroke Top end TDC finding.... ain't used it in years... but perhaps I could use it to set the crank to being true...
I have seen where guys gave bored holes in the crank to put pins in there to make the crank stable.... also hurd that that weakened the crank too ! .... also hurd that people do indeed weld the pins that are pressed in but I don't know if there is any reprocussions like warping of the crank that you have to deal with ..... my experience with welding is that no matter what it is it will warp it a tiny amount the thicker the metal the less warpage and the crank is mighty thick so it should be ok....
it would be Hell to have it all perfectly lined up and weld it so it can't move and then discover it warped it the same amount it was off before ! LOL ....... but I suppose you could bring it back with a 20 ton press if you did it carefully.....
....that would be tricky in deed.... how much does the metal flex before it bends and then bend it that much and .002 more..... LOL
that's something for 2M to do ...not me ! LOL
....
Hay if nothing else My Voltage meter looks Cool and it's solid as a rock on there ! seams to be holding good with the "Shoe-Goo" LOL
....
Bob..........
Well it Must have slipped to be out of true a little RIGHT ? or would you venture to say the crank BENT ?It's slipping?