Maintenance & Technical > KX500 Original
Sleeving crank journals - good idea / bad idea?
Captain_Chaos:
Looks like Swain Tech offer some great coatings, but I would prefer not to ship the crank all the way from South Africa. I?m still researching some local companies.
Captain_Chaos:
I managed to find a company that can hard chrome and grind my crank :)
Asking the bike workshops and searching the internet did not help ? I got the details from a fellow rotary fan (he?s currently building a street bike with a 13B turbo rotary motor).
Hopefully I can drop the crank of tomorrow (assembled & trued, but without the rod).
I?m feeling much more confident going this route.
Larry Wiechman:
You will still have to OD grind the plating to size and concentricity.
Motorrad:
somthing to watch out for.... and warn the shop.
Just because the outer crank web is round..... doesnt mean its true to the bearing.. or actually round for that matter....
so they need to figure that out before they decide to cut the bearing journal off that as a guide...
(had this conversation with my hardchrome guy too)
Larry Wiechman:
They are ground using the 60? centers in the end of the threaded diameter and the crank web.
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