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  • 1 Post By Ayson

Thread: Rear wheel hub heating up

  1. #1
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    Default Rear wheel hub heating up

    Hello, i need some help on this please help. I own a P180 UG3 (late 2007). My rear wheel hub seems to be heating up with riding.

    Frankly i just started noticing it. I'm not sure if it was there before. I started noticing it after i had re-fitted the wheel after removing it for puncture repair. It heats up even on ~5 km rides. By hot, i mean its ok to touch on these short rides. I have not gone for a long ride since this.

    To check, i once ran the bike in 5th gear, idle RPM, with center stand on for about 20 minutes. I could not see any similar heating, so im not sure if it is from the braking. But maybe its different when there is no load on the axle.

    Here is a list of things i suspect and can point out.

    1) The axle was misaligned before i had removed the wheel for puncture repair. I aligned it when fitting it back. I dont know how much it ran misaligned.

    2) While fitting the wheel back i had greased the axle.

    3) Since i did not remove the bearings, i applied a little grease on top of the bearings, but i doubt any grease got inside the bearings. The gaps were so tight.

    4) While i had removed the wheel, i washed the inside of the brake drum with water to remove the old filings. Could this have affected the bearings?

    The last point is what concerns me the most, but isn't it normal for water to get inside the drum during rains and washing? Please help this scared and confused newbie.
    kmfarhath likes this.

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    Ayson, lately I've been noticing you posting too much issues with your Pulsar UG3. I think its time for changing your ride.

    Anyway, water is bad for motorcycle & inner parts of drums, but a little here & there is OK. Take your motorcycle to Bajaj A.S.S & get the rear wheels checked as most of the puncture fix causes wheels to fit back improperly leading to various other issues. Get this checked from Bajaj A.S.S & post your feedback.
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    1. Check your brake drum for ovality. If the drum liner has become oval, it will keep rubbing the brake pads at all times even though you feel the brakes are fine. Do not neglect this since if the brakes overheat, first it'll stop working next it'll jam and throw you off the bike.

    2. Never use water inside the brake drum. The Drum liners are made of iron and this will cause them to rust.

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    Check for the brake play adjustment. If the brakes are always dragging it will cause the drum to heat up fast even if you don't use the rear brake much.

    Wheel removal alone will not disturb the chain tension setting and hence the wheel alignment. This can only happen if the chain tension adjusters were readjusted.

    Washing with water is not a problem. Any rust that forms in the cast iron drum will be removed when the brakes are applied.

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    Thanks for the replies. The brake is not dragging. I could not notice any oval-ness of the drum. I was just worried that the water may have affected the bearings. Probably the heating is just due to the braking. Ill go for a ~10 km ride without using the rear brake and tell you what happens.

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