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Old 10-01-2006, 06:21 AM   #1
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Default Front engine bearings ???

I am changing my front bearing on my AxeMotorRossi Black Magic .21 engine.Previously I replaced with rubber sealed bearings with the seal removed on one side of bearing.
I couldnt get rubber sealed lately and got metal sealed ones ,would I have to remove the seal on one side as well ?
Reason I ask is that rubber seal bearings usually seal well and metal dont.
Is this correct ?
On my Palmaris PR12 the front bearing is metal sealed and seals are still in place.
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Old 10-01-2006, 08:35 AM   #2
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Quote:
Originally Posted by razzor
I am changing my front bearing on my AxeMotorRossi Black Magic .21 engine.Previously I replaced with rubber sealed bearings with the seal removed on one side of bearing.
I couldnt get rubber sealed lately and got metal sealed ones ,would I have to remove the seal on one side as well ?
Reason I ask is that rubber seal bearings usually seal well and metal dont.
Is this correct ?
On my Palmaris PR12 the front bearing is metal sealed and seals are still in place.
Hello Shiraz.
You can use shielded bearings instead of sealed for onroad-no problem at all (actualy it is better-rubber seal's leap will burn out in sealing diameter any way). Sealed bearings are required for off-road aplication due to the a lot of dust. Just get shileded bearings and remove one side shield.
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Old 10-01-2006, 08:52 AM   #3
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Thanks ED ,will have to look for some rubber sealed bearings then.
BTW got PR12 running sweet now ,Kitracer's advice was on the button.
cheers
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Old 10-03-2006, 02:54 AM   #4
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The seal is removed on one side to allow the engine fuel to lubricate the bearing. If the front seal starts leaking the engine becomes hard to tune and will spill fuel all over the car.
A metal seal bearing is always a bit leaky. It should work fine without removing any of the seals (since it allows some liquid to pass through anyway) but may be a bit messier to use than a good quality rubber seal bearing.
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Old 10-03-2006, 09:58 AM   #5
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Thanks bud ,managed to get a rubber sealed bearing.
Couldnt get Z rated but it should good for a race meeting.
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Old 10-04-2006, 03:31 AM   #6
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I noticed that the ceramic bearing in the front of the JP P5FX Buggy motor has both rubber seals still attached, as do the TKO ceramic bearings.
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