Wheel wobble - brake drum?

daven8844x · 06-22-2013, 09:32 AM

I have been trying to cure a wheel wobble issue on rear drivers side. I have a new axle and it is better. However, when I put the drum back on, in some rotational positions it slides on and in others, it is a tight fit. In some rotational positions once installed, the drum spins freely when I hit the accelerator with a little wobble, and in others it makes a knocking sound or has an intermittent spin (like it is getting hung up on a brake). Any thoughts? Drum out of round (thus need new drum)? Bad hub?

Thanks in advance.

--Dave

Kudaman · 06-22-2013, 06:10 PM

Sounds like there is more then one issue here. The drum could be a little out of round due to the way it fits on the hub. The knocking sound is strange. Does it go away or change when you put the drum on in a different stud hole? Could be the differential making noise. Does it change going around corners? The wobble could be a tire issue too. Check tire pressures and make sure there isn't a broken belt in the tire.

yurtle · 06-22-2013, 07:34 PM

To check if the tires are wobbly, trade sides and see if the problem follows the tire.

Kudaman · 06-22-2013, 08:48 PM

Quote:

Originally Posted by yurtle

To check if the tires are wobbly, trade sides and see if the problem follows the tire.

Definately try that. I'd suggest rotate the tires to the opposite corner. That should make it really obvious!...if it is a tire issue.

daven8844x · 06-23-2013, 06:18 AM

It's not a knocking, I guess, it is a scraping, but it is clearly caused by the drum contacting the brake pads as it rotates out of round. I think I will try switching the drum with the one from the other side today. No reason I cannot do that, right? I think the drum is the same on both sides.

Thanks for the wheel advice, but I can see the issue with the drum after I remove the wheel, so I do not think the wheels are an issue (or they may still be, but the drum is as well).

Thanks for you help,
Dave

yurtle · 06-23-2013, 07:33 AM

My drums make a slight scraping noise. It's kind of a trade-off between no scraping, and being able to lock 'em up at high speed. One thing to check is to drive several miles, then touch the drum or at least the lug nuts, to see if they're developing excess heat. In my case, I believe the drums are slightly out of round. I never tried rotating them in 90° increments to see if it might improve.

scottyb · 06-23-2013, 07:54 AM

Almost all of the Ezgo brake drum hubs are slightly out of round.... that is why the shoe only drags in one spot when rotated on 95% of them. I suppose in an extreme case this could cause a wobble. But my first guess is a tire problem.

Kudaman · 06-23-2013, 08:01 AM

If it is a scraping noise then it is likely the dust shield. Just grab a screw driver and bend it out so it doesn't contact the drum. If you take the drum off chip any rust off the outer edge of the drum with a hammer.

daven8844x · 06-23-2013, 10:43 AM

Definitely drum. I switched drums and now the other side wobbles and drivers is fine. I got my cart from a golf course. Axle was bent, so I assume the impact that did that also whacked the drum out of line.

pjmia96 · 07-04-2013, 07:09 PM

I have this same problem!

Matt

06-22-2013, 09:32 AM	#1
daven8844x Not Yet Wild Join Date: Dec 2012 Posts: 20	Wheel wobble - brake drum? I have been trying to cure a wheel wobble issue on rear drivers side. I have a new axle and it is better. However, when I put the drum back on, in some rotational positions it slides on and in others, it is a tight fit. In some rotational positions once installed, the drum spins freely when I hit the accelerator with a little wobble, and in others it makes a knocking sound or has an intermittent spin (like it is getting hung up on a brake). Any thoughts? Drum out of round (thus need new drum)? Bad hub? Thanks in advance. --Dave
daven8844x Not Yet Wild Join Date: Dec 2012 Posts: 20

06-22-2013, 06:10 PM	#2
Kudaman Gone Wild Join Date: Mar 2013 Location: Ottawa, ontario, Canada Posts: 292	Re: Wheel wobble - brake drum? Sounds like there is more then one issue here. The drum could be a little out of round due to the way it fits on the hub. The knocking sound is strange. Does it go away or change when you put the drum on in a different stud hole? Could be the differential making noise. Does it change going around corners? The wobble could be a tire issue too. Check tire pressures and make sure there isn't a broken belt in the tire.

06-22-2013, 07:34 PM	#3
yurtle Gone Mad Join Date: Oct 2009 Location: Buford, GA Posts: 8,988	Re: Wheel wobble - brake drum? To check if the tires are wobbly, trade sides and see if the problem follows the tire.

06-23-2013, 06:18 AM	#5
daven8844x Not Yet Wild Join Date: Dec 2012 Posts: 20	Re: Wheel wobble - brake drum? It's not a knocking, I guess, it is a scraping, but it is clearly caused by the drum contacting the brake pads as it rotates out of round. I think I will try switching the drum with the one from the other side today. No reason I cannot do that, right? I think the drum is the same on both sides. Thanks for the wheel advice, but I can see the issue with the drum after I remove the wheel, so I do not think the wheels are an issue (or they may still be, but the drum is as well). Thanks for you help, Dave
daven8844x Not Yet Wild Join Date: Dec 2012 Posts: 20

06-23-2013, 07:33 AM	#6
yurtle Gone Mad Join Date: Oct 2009 Location: Buford, GA Posts: 8,988	Re: Wheel wobble - brake drum? My drums make a slight scraping noise. It's kind of a trade-off between no scraping, and being able to lock 'em up at high speed. One thing to check is to drive several miles, then touch the drum or at least the lug nuts, to see if they're developing excess heat. In my case, I believe the drums are slightly out of round. I never tried rotating them in 90° increments to see if it might improve.

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06-23-2013, 07:54 AM	#7
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,419	Re: Wheel wobble - brake drum? Almost all of the Ezgo brake drum hubs are slightly out of round.... that is why the shoe only drags in one spot when rotated on 95% of them. I suppose in an extreme case this could cause a wobble. But my first guess is a tire problem.

06-23-2013, 08:01 AM	#8
Kudaman Gone Wild Join Date: Mar 2013 Location: Ottawa, ontario, Canada Posts: 292	Re: Wheel wobble - brake drum? If it is a scraping noise then it is likely the dust shield. Just grab a screw driver and bend it out so it doesn't contact the drum. If you take the drum off chip any rust off the outer edge of the drum with a hammer.

06-23-2013, 10:43 AM	#9
daven8844x Not Yet Wild Join Date: Dec 2012 Posts: 20	Re: Wheel wobble - brake drum? Definitely drum. I switched drums and now the other side wobbles and drivers is fine. I got my cart from a golf course. Axle was bent, so I assume the impact that did that also whacked the drum out of line.
daven8844x Not Yet Wild Join Date: Dec 2012 Posts: 20

07-04-2013, 07:09 PM	#10
pjmia96 Gone Wild Join Date: Feb 2010 Posts: 551	Re: Wheel wobble - brake drum? I have this same problem! Matt
pjmia96 Gone Wild Join Date: Feb 2010 Posts: 551

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