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How much balance weight is too much #5081755
04/21/19 02:02 PM
04/21/19 02:02 PM
Joined: Mar 2019
Posts: 21
Switzerland
Hitman70 Offline OP
Hitman70  Offline OP

Joined: Mar 2019
Posts: 21
Switzerland
Hi,

I own a 2015 Jeep Grand Cherokee 5.7 Summit AWD.

I just purchased brand new wheels for summer (I keep my Pirelli Winter tires on stock wheels). Those are American Racing AR893 chrome 20' x 8.5.

I had almost new Goodyear tires 265 50R20 so I decided to install them on the American Racing wheels. I also have new Mopar tire pressure sensors.

When I tried to balanced them, the machine asked about 120 gram (4 oz) per wheel…

I also tried to balance a rim without the tire on it, just for see, and just for the rim it required 60 gramm (2 oz).

Seems a lot!

But of course, the wheels are heavy, about 30 kg (66 lbs) for the combo rim/tire and rim only is about 18 kg (39 lbs). Maybe it's why it needs so much weight...

Is it normal to have so much weight to add for balance my tires?

Thanks

Re: How much balance weight is too much [Re: Hitman70] #5081763
04/21/19 02:06 PM
04/21/19 02:06 PM
Joined: Mar 2015
Posts: 6,033
Glendale, Arizona
billt460 Offline
billt460  Offline

Joined: Mar 2015
Posts: 6,033
Glendale, Arizona
Approximately how much does each sensor weigh?

Re: How much balance weight is too much [Re: Hitman70] #5081765
04/21/19 02:08 PM
04/21/19 02:08 PM
Joined: Jun 2003
Posts: 34,439
ME
eljefino Offline
eljefino  Offline

Joined: Jun 2003
Posts: 34,439
ME
My 15-16" OE steel wheels, naked, take 0.25 oz of weight. They are very very well made.

Are you sure your AR wheels are hub-centric, that is, can be balanced on the middle hole, without a "spider adapter"?

As you grow in size, I would expect a growth in weight needed, but you seem a bit beyond my norm. If it rolls good, that's all that matters.

Re: How much balance weight is too much [Re: Hitman70] #5081777
04/21/19 02:18 PM
04/21/19 02:18 PM
Joined: Aug 2017
Posts: 570
Cincinnati, USA
Dave9 Offline
Dave9  Offline

Joined: Aug 2017
Posts: 570
Cincinnati, USA
If the rim needs 2oz and with the tire it needs 4oz, rotate the tire on the rim by 180' then check again.

Re: How much balance weight is too much [Re: Hitman70] #5081816
04/21/19 02:53 PM
04/21/19 02:53 PM
Joined: Mar 2011
Posts: 1,114
Cali's Central Coast Wine Coun...
SLO_Town Offline
SLO_Town  Offline

Joined: Mar 2011
Posts: 1,114
Cali's Central Coast Wine Coun...
For a 66lb wheel/tire combo, I do not think 4oz of weights is too much.

Scott


03 BMW E46 330Ci ZSP (BMW TPT 5W-30)
10 Honda Element SC (Kendall GT1 Max 5W-30)
11 BMW E90 328i M-Sport (BMW TPT 5W-30)
16 VW Passat VR6 3.6L SEL Premium (Euro Castrol 0W-40)
Re: How much balance weight is too much [Re: Hitman70] #5081828
04/21/19 03:06 PM
04/21/19 03:06 PM
Joined: Jun 2002
Posts: 13,030
The Motor City
Kestas Offline
Global Moderator
Kestas  Offline
Global Moderator

Joined: Jun 2002
Posts: 13,030
The Motor City
I once had to add 8 oz to balance a tire. The tire had other problems, like it caused the car to wiggle at 15 mph, then again at 70 mph. It also wasnt vary round.

Re: How much balance weight is too much [Re: Dave9] #5081840
04/21/19 03:14 PM
04/21/19 03:14 PM
Joined: Sep 2002
Posts: 2,769
VA
Gebo Offline
Gebo  Offline

Joined: Sep 2002
Posts: 2,769
VA
Originally Posted by Dave9
If the rim needs 2oz and with the tire it needs 4oz, rotate the tire on the rim by 180' then check again.


+1 Seems like a very reasonable suggestion...


'98 LEX LS400 295K
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Re: How much balance weight is too much [Re: Hitman70] #5081841
04/21/19 03:15 PM
04/21/19 03:15 PM
Joined: Jul 2018
Posts: 161
Florida
DONWATERS Offline
DONWATERS  Offline

Joined: Jul 2018
Posts: 161
Florida
American racing wheels are notorious for being out of balance. If its aluminum try grinding a non critical area from the wheel itself on the heavy side on the back.

Re: How much balance weight is too much [Re: Hitman70] #5081843
04/21/19 03:19 PM
04/21/19 03:19 PM
Joined: Mar 2019
Posts: 21
Switzerland
Hitman70 Offline OP
Hitman70  Offline OP

Joined: Mar 2019
Posts: 21
Switzerland
Thanks for your answers.

I'll try to rotate the tire by 180' and balance again.

I'm surprise that the rim without tire already requires 2 oz btw.

If nothing changes and if it's not too much, I'll just add the 4 oz if it's safe to do this.

We balanced it by the middle hole without any adapter, like we do with others rims. How can I know if it's not hub.centric?

Re: How much balance weight is too much [Re: Hitman70] #5081851
04/21/19 03:28 PM
04/21/19 03:28 PM
Joined: Aug 2017
Posts: 570
Cincinnati, USA
Dave9 Offline
Dave9  Offline

Joined: Aug 2017
Posts: 570
Cincinnati, USA
It's not hub centric if the wheel bore is larger than the vehicle hub bore, to fit a variety of vehicles with different hub sizes. If hub centric there will be very little slop before the lug nuts are on. OEM wheels are almost always hub centric. Aftermarket would only be if you pay attention to that detail when selecting them or are intended for specific vehicle hub sizes.

Last edited by Dave9; 04/21/19 03:29 PM.
Re: How much balance weight is too much [Re: Dave9] #5081905
04/21/19 04:29 PM
04/21/19 04:29 PM
Joined: Mar 2019
Posts: 21
Switzerland
Hitman70 Offline OP
Hitman70  Offline OP

Joined: Mar 2019
Posts: 21
Switzerland
Originally Posted by Dave9
It's not hub centric if the wheel bore is larger than the vehicle hub bore, to fit a variety of vehicles with different hub sizes. If hub centric there will be very little slop before the lug nuts are on. OEM wheels are almost always hub centric. Aftermarket would only be if you pay attention to that detail when selecting them or are intended for specific vehicle hub sizes.


Thanks for the information.

I haven't yet removed the OEM Wheels from the car, so I don't know if the AR wheels bore is larger than the car Wheel bore.

I'll take a look on AR website, maybe I can get the bore size.

Re: How much balance weight is too much [Re: Hitman70] #5081916
04/21/19 04:42 PM
04/21/19 04:42 PM
Joined: Mar 2019
Posts: 21
Switzerland
Hitman70 Offline OP
Hitman70  Offline OP

Joined: Mar 2019
Posts: 21
Switzerland
[Linked Image]

Bore is 78.30.

So I've just to find Grand Cherokee Hub Bore size and i'll know if it's centred or not?

Re: How much balance weight is too much [Re: Hitman70] #5081927
04/21/19 04:58 PM
04/21/19 04:58 PM
Joined: Sep 2004
Posts: 8,177
Marshfield , MA
andyd Offline
andyd  Offline

Joined: Sep 2004
Posts: 8,177
Marshfield , MA
Am I just showing my age? 265 50R20 on a Jeep? And this is a good idea because? shrug


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1994 Ranger ,the Rat, 5w30 dino, STP filter

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Re: How much balance weight is too much [Re: Hitman70] #5081933
04/21/19 05:09 PM
04/21/19 05:09 PM
Joined: Mar 2019
Posts: 21
Switzerland
Hitman70 Offline OP
Hitman70  Offline OP

Joined: Mar 2019
Posts: 21
Switzerland
265/50R20 is OEM size btw

Re: How much balance weight is too much [Re: andyd] #5081947
04/21/19 05:34 PM
04/21/19 05:34 PM
Joined: Jun 2003
Posts: 18,907
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline

Joined: Jun 2003
Posts: 18,907
Deplorable in apple valley, ca
Originally Posted by andyd
Am I just showing my age? 265 50R20 on a Jeep? And this is a good idea because? shrug

It's not a real Jeep.


02 Wrangler carlube 5w30
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07 fjcruiser Chevron 10w30
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