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400 Sport Balancer shaft

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Old Jan 1, 2007 | 01:06 PM
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Default 400 Sport Balancer shaft

OK Guys,
How do I get the new bearing onto the balancer ?. I assume that the gear is just pressed onto the shaft, is this correct ? Also, how do I get the small bearing out of the crankcase ? Since it is a blind hole, how do I get it out ?
Thanks,
D.
 
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Old Jan 1, 2007 | 10:17 PM
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Default 400 Sport Balancer shaft

to put the new bearing on the balancer use a deep socket that will fit the inside race of the bearing and tap it on.make sure you oil the shaft first.to get the small bearing out of the block you need a bearing puller.make sure you mark the spot on the shaft where your gear goes on to keep them in time with the dots on them.
 
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Old Jan 1, 2007 | 11:08 PM
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Default 400 Sport Balancer shaft

I guess I should have explained that I do not have the balancer shaft and bearing split yet . How does one do this ?
Thanks,
D.
 
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Old Jan 1, 2007 | 11:52 PM
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Default 400 Sport Balancer shaft

first look for the dot on the gear,mark it with a file or grinder lightly on both sides of the teeth.the draw a line using a straight edg or small square down the gear and across the bearing to the balancer shaft.this will guide you in reinstalling the gear in its proper place.when that is donetap the gear lightly to remove it.it should come off fairly easy,if not you may need to get a gear puller to take it off,BE EXSTREAMLY CAREFUL NOT TO BEND THE SMALL WATERPUMPSHAFT AT ALL.after you get the gear off tap the bearing with a ballpean hammer on the sides and it will come off.be sure to check the shaft for wear or pitting if you plan to reuse it.
 
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Old Jan 2, 2007 | 12:30 AM
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Default 400 Sport Balancer shaft

I don't want an arguement on this topic , I almost didn't reply .

As a hammer owner and having done many bearing replacements on balancers I have never used a hammer in any way on a balancer . Using a gear puller on the gear also scares me . The center bolt is very fragile , I learned this the hard way .

To remove the blind hole bearing a toaster oven works great . They will fall right out .

Rick Ritter
 
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Old Jan 2, 2007 | 12:21 PM
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Default 400 Sport Balancer shaft

i love toaster ovens haha but how did you come up with that?
 
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Old Jan 2, 2007 | 12:41 PM
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Default 400 Sport Balancer shaft

Toaster oven ?

I use a regualr gas oven for sleeving cylinders , toaster oven works nice on aluminum castings , it is a little quicker than a gas oven too .

Rick
 
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Old Jan 2, 2007 | 03:43 PM
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Default 400 Sport Balancer shaft

Originally posted by: RickRitter
I. The center bolt is very fragile , I learned this the hard way .

That is true. You can break this off before you know it and this part costs a small fortune.
 
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Old Jan 2, 2007 | 09:47 PM
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Default 400 Sport Balancer shaft

Is the bearing behind the gear on the balancer shaft the same bearing that is used in the engine elsewhere ? The reason I ask , is that I would order an extra bearing of that size and use it on the balancer shaft .
Thanks,
D.
 
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Old Jan 2, 2007 | 09:48 PM
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Default 400 Sport Balancer shaft

and/or even better yet a polaris part # would be the greatest .
Thanks again,
D.
 
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