KX500 Crank Gear Spur for impeller/water pump. Question

Dirt Bike Technical discussion. This is for a little more in depth discussions :-)
Post Reply
Markee757
Posts: 17
Joined: Sat Oct 07, 2017 12:24 pm

KX500 Crank Gear Spur for impeller/water pump. Question

Post by Markee757 » Wed Nov 29, 2017 1:04 pm

Tearing my motor down and found the gear on the crankshaft is chipped and cracked. At first I thought they cut the gear on the crank! But apparently it seems to be a press/interference fit? Correct?

User avatar
Sandblaster
Posts: 5300
Joined: Thu Jun 07, 2012 3:50 pm
Location: Eugene, OR
Contact:

Re: KX500 Crank Gear Spur for impeller/water pump. Question

Post by Sandblaster » Wed Nov 29, 2017 3:30 pm

Yes, it is lightly pressed in.
59051-1128 is the part number.
I don't have the size of the shaft that goes into the crank.
So, if it breaks off while removing, just order a new one (If you haven't already) and when it comes in measure it.
Then get a drill that is a little smaller and go for it :D
Let us know the results..
If bikes are for kids I'll never grow up.

Markee757
Posts: 17
Joined: Sat Oct 07, 2017 12:24 pm

Re: KX500 Crank Gear Spur for impeller/water pump. Question

Post by Markee757 » Fri Dec 01, 2017 1:11 pm

I'm going to weld a nut on, heat the crank a little and try to slide hammer it out.

User avatar
Sandblaster
Posts: 5300
Joined: Thu Jun 07, 2012 3:50 pm
Location: Eugene, OR
Contact:

Re: KX500 Crank Gear Spur for impeller/water pump. Question

Post by Sandblaster » Fri Dec 01, 2017 3:42 pm

That will work as well...
There are always lots of ways to repair :lol:
If bikes are for kids I'll never grow up.

Markee757
Posts: 17
Joined: Sat Oct 07, 2017 12:24 pm

Re: KX500 Crank Gear Spur for impeller/water pump. Question

Post by Markee757 » Sun Dec 03, 2017 1:06 pm

Image
Image
Image

Propane heat was not enough, had to fire up the oxy/acc torch.

User avatar
Sandblaster
Posts: 5300
Joined: Thu Jun 07, 2012 3:50 pm
Location: Eugene, OR
Contact:

Re: KX500 Crank Gear Spur for impeller/water pump. Question

Post by Sandblaster » Sun Dec 03, 2017 3:33 pm

Very nice.
You can certainly weld a lot better then me.
Most of the time guys break them off which is why they need to replace them :lol:
Great job!
If bikes are for kids I'll never grow up.

Post Reply

Return to “Dirt Bike Technical discussion”

Who is online

Users browsing this forum: No registered users and 2 guests