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March 18th, 2016, 12:04 AM   #1
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Orangeberg Bearing Life Expectancy?

Just had my water pump seal pop after some spirited riding on Michigan Ave in Chicago. Luckily it happened right when I pulled up to park by a retailer instead of when a young lady from Texas was standing on the island to hand me my hat after it flew off

Since I only had little drip of oil from the weep hole before and the new bearing was installed last May maybe 3,000 miles before... not sure if it caused the seal to blow... or just the mileage/time.

Question is if the bearing is shot and a new Orangeberg kits needs to be installed. If the bearing is shot... does it need a new Orangeberg seal or can the bearing be popped out and the new one pressed in?

Bike is a 2008 650. Incredible city bike! Eat potholes like chocolate kisses and makes speed jumps out of bumps. Sidewalks are always an option in bumper to bumper traffic... in industrial areas.

Would love to hear the informed opinions of those with experience. Also would love to hear a dead give away for knowing when the water pump bearing is shot.

Thanks guys! Hope you all had a great Irish holiday! We do it big here in Chicago.

Cheers!
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Last edited by K2Berg; March 18th, 2016 at 07:41 AM.
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March 18th, 2016, 01:18 AM   #2
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the 6201 bearing runs at half engine speed. so do the cam bearings. the cam bearings run in their own grease. might be worth a punt at trying a straight 6201 c3 2RS in there.

also try leaving the seal 0.5mm proud next time so it rubs on a different part of the shaft.

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Taffy
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March 18th, 2016, 07:25 AM   #3
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Taffy,

Do you mean the "water pump" bearing?

Changed the cam bearings when the new cam chain was installed last August... per recommendations on the site.

Last edited by K2Berg; March 18th, 2016 at 07:42 AM.
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March 18th, 2016, 09:21 AM   #4
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yes, the cam bearings and the waterpump bearings are 6201s. the waterpump bearing has a plstic cage so the colloquil term here is that that bearing is called the "Polyamide".

so you know the cam loading is greater than the waterpump. I guess I should be trying this first - not you.

the idea is that the waterpump bearing could run in water thanks to a plastic cage. but why not just have a sealed bearing there and even if coolant is on the ouside of it.....so what? maybe they think that it is becauise of the tell-tale leak hole in the front being blocked, backing up the coolant, bearing fails.

maybe?

but then why have an open side with a big open rubber seal in it.

all in all it doesn't make sense.

kind regards

Taffy
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