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Old 09-04-2004, 06:34 AM   #1
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bearing replacement

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I have ordered a set of bearing for an old YS engine from Canadian Bearings. The original bearings do not have any cover except the front side of smaller one which is connected to prop drive hub. The replacement bearings are covered in both direction.
Can I use covered bearing instead of uncovered one?
Is there any potential problem?
Is there any way to take off the cove without damaging the bearing?

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Old 09-04-2004, 07:46 AM   #2
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By cover do you mean its sealed on both side?I think the bearing should be sealed on the outside but not inside,cause if its sealed inside how is the oil gonna get to it.

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Old 09-04-2004, 10:10 AM   #3
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The covers are grease seals as the brgs. are in grease for self lubrication. You could leave them on but at our high rpm it would be better to remove, clean,lightly oil and install. I remove mine with a pick which you can pry up an edge and take them off. The fuel has all the lubrication you require. Just don't get carried away and scratch a ball or race. Then you need a new one.
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Old 09-09-2004, 12:07 AM   #4
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Remove the covers/seals/shields by gently working a pocket knife under it at the inner race interface. This will not damage the bearing. Leave the outboard seal of the prop end bearing in place. Remove the inner seal so the oil can get to and lubricate it.
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Old 09-09-2004, 06:19 AM   #5
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Remove both seals. Excess fuel being pushed through the bearing will continually flush them out and keep them clean.

Ed S
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