|
03-06-2011, 01:13 AM | #1 |
WSB Champion
Join Date: Nov 2008
Location: Anaheim, CA
Moto: 2009 Kawi ZX6R
Posts: 5,570
|
I cannot really see from the picture, but are there 4 threaded holes in that sprocket? If so, then you use a puller in which all four bolts are threaded into the sprocket and are bolted to a plate some distance away from the sprocket. Then a center threaded bolt, which is threaded into the plate goes into the hole to push on the crankshaft. When this happens, the sprocket is drawn away from the crank. If there are indeed holes, you would have to make a special tool specifically designed to remove this thing.
__________________
Train Hard Ron Paul - 2012 Mark of Excellence GM Last edited by 101lifts2; 03-06-2011 at 01:20 AM.. |
03-06-2011, 11:14 AM | #2 | ||
WERA White Plate
Join Date: Feb 2008
Location: Renton, WA
Moto: Ninja 650R
Posts: 1,920
|
Quote:
But I like your idea. Take a 1/4" steel plate, four grade 8 bolts and the original center bolt (or a longer one the same pitch), and a handful of nuts and washers. Drill five holes in one 6" square piece of plate for the outer section of the puller, and make two strips with end holes to go behind the cog. If you can't get behind the cog, get a REAL 3/8" cutting wheel and cut slots in the sucker. Dremels are fine for little stuff, but real work needs full size tools.
__________________
Quote:
|
||
03-06-2011, 11:29 AM | #3 |
Movie Star
Join Date: Feb 2011
Location: Kingsport, TN.
Moto: KLR650
Posts: 682
|
When you tried the heat/duster trick, you needed to cool the shaft not the gear. The gear needs to be hotter than the shaft so it's bigger. You might also try (if there is room) heating it then striking it with a hammer back towards the motor to shock it loose. You could also take a dremel and cut a slice down one side then split it with a chisel and hammer. Good luck!
|
03-06-2011, 08:12 PM | #4 | |||
uncomfortably numb
Join Date: Nov 2008
Location: JOH-JAH!
Moto: WR250R & Bonneville
Posts: 409
|
Quote:
Quote:
Quote:
I ordered a 4-inch angle grinder with some cutting wheels. Here's hoping I don't damage the crank in the process of cutting the gear... |
|||
03-06-2011, 09:55 PM | #5 |
Movie Star
Join Date: Feb 2011
Location: Kingsport, TN.
Moto: KLR650
Posts: 682
|
Had I been awake longer when I read your post, I would have retained the facts you had already mentioned instead of repeating them!
As for heat, propane is a no go usually. You really need oxy/acetylene to be able to heat the gear very quickly while not heating the shaft it's on. I had the same problem with a radius arm nut on my bronco. Not even a 3/4" impact would budge it. I torched it with my mapp torch and got it nice and orange but, it wouldn't budge with the impact while hot! Hit it with the oxy/acy and it came right off! Do you know anyone with a plasma cutter? You could cut half of it off while leaving just enought to protect the shaft yet, thin enough to break loose. If you use the grinder, I would recommend putting something like a sleeve or nut or even duct tape wrapped thickly around the protruding part of the shaft to protect it in the event you slip and hit it. Be careful, wear eye protection and good luck! |
Bookmarks |
|
|