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Old 10th September 2011, 10:55   #166
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Default Re: Solution for vibrations after installing alloy wheels

I would assume all four wheels should be equally prone. But front vibration can be more noticeable as it gets transmitted to steering as well.

Before using other materials, do consider how much heat they can take. If it is going to get deformed by brake heat, it won't be serving the purpose.
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Old 10th September 2011, 16:57   #167
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Default Re: Solution for vibrations after installing alloy wheels

@ santosh

melting point of Delrin (Acetal) polymer is 175- 183 C or 347-361 F,

Melting point of Nylon is 190–350 C or 420F

But what will be the maximum temperature the hub acquire during normal running , I hope it will be less than the melting point. But i have to buy an Delrin/Nylon Extruded rod from shop, to machine it.

Since aluminium is costly and also it may damage alloy, if something gets wrong with ring alignment or loosened nut. So i prefer Polymers, though it is cheap, but it also absorb any damage, keep alloys intact.
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Old 12th September 2011, 00:27   #168
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Default Re: Solution for vibrations after installing alloy wheels

@rajivanoj, I don't really know, just thought of sharing what came to my mind Doubt if it would melt those rings, but even if it just becomes soft enough to deform under normal use, the purpose is lost. ABS rings made specifically for centering claim to withstand the heat.
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Old 12th September 2011, 21:19   #169
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Default Re: Solution for vibrations after installing alloy wheels

But santosh, as i am into plastic business, ABS is not suitable for these purpose, its just suitable for outer covers, such as mixer, mobile, phone, laptop, where glossiness is required, But Nylon and delrin have high strength compared to ABS, But aluminium is also an option. Even now, most bushes and sleeves in automobiles use Delrin and Nylon

We are also producing Delrin Cam bush which is used for heavy vehicles, tata, leyland, brake inside wheel. so i think delrin will be fine.

Also Nylon and delrin have self lubricating capacity. But I am thinking whether it will be successful, since the difference between hub and wheel size is just 2mm. So i doubt, whether i feel any difference

Last edited by rajivanoj : 12th September 2011 at 21:30.
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Old 12th September 2011, 22:40   #170
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Default Re: Solution for vibrations after installing alloy wheels

Rajiv, you are a better judge for suitability of materials. But I believe 2mm is actually significant when it comes to wheel centering. Additionally, wheels must be balanced properly. Perfectly centered wheels will still cause vibrations if there is imbalance.
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Old 2nd October 2011, 13:14   #171
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Default Re: Solution for vibrations after installing alloy wheels

Hi SAP,

Thanks for posting this valuable thread. Recently I had changed to NEO alloys for my Indica DLS (2008). After installing the alloys on crossing 80 KMPH, the vehicle including the steering vibrates heavily. On searching team bhp, found the solution and enquired the details for Hub Centric Rings with the alloy vendor.

Went to Ashoka Wheels (opposite KIMS, Ministers Road) in Hyderabad and the guy over there taken the measurements and fitted the hub rings. Now my Indica is stable even at 100 KMPH. Thanks a lot for the valuable help.


Thanks,
Srinivas.R
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Old 23rd October 2011, 06:13   #172
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Awesome. Glad that worked out for you Srinivas.
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Old 3rd July 2012, 10:52   #173
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Default Re: Solution for vibrations after installing alloy wheels

Reviving an old thread. I have just procured a set of League alloys for my Punto. Now the centre-bore size of the alloys is 73.1mm while the hub size for the Punto is 58.1mm, requiring hub-centric rings of 78mm outer dia and 58mm inner dia. I visited many lathe workshops in my area. Most of them have advised that it's better that the rings be made of brass as it doesn't catch rust. However, brass is quite expensive and the entire fabrication would cost about Rs 3500 (if I buy online, the cost of rings comes to about Rs1650).

Now, what about cast iron rings? They would be quite inexpensive, though I am not so sure about the rust resistance capacity of cast iron. Apparently, though, the car hub is also made out of cast iron (?). So , should I go for cast iron rings?

Suggestions solicited
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Old 3rd July 2012, 13:05   #174
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Default Re: Solution for vibrations after installing alloy wheels

Quote:
Originally Posted by riturajsharma19 View Post
.... requiring hub-centric rings of 78mm outer dia and 58mm inner dia. I visited many lathe workshops in my area. Most of them have advised that it's better that the rings be made of brass as it doesn't catch rust. However, brass is quite expensive and the entire fabrication would cost about Rs 3500 (if I buy online, the cost of rings comes to about Rs1650).
Now, what about cast iron rings? They would be quite inexpensive, though I am not so sure about the rust resistance capacity of cast iron. Apparently, though, the car hub is also made out of cast iron (?). So , should I go for cast iron rings?
Normally every time I've bought alloys for my cars I've always checked to see if the dealer for the rims will give me the centering rings if I need them. To be honest, I would be uncomfortable getting them fabricated in a workshop somewhere unless the guys are experienced because if your rings are made defective the consequences could be serious.

Have you tried these guys? Hub Rings / Spigot rings for wheels 4,75
They have your exact size. http://www.hubcentric-rings.com/size-73.1-58.1/

Last edited by ghostrider : 3rd July 2012 at 13:07.
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Old 6th August 2012, 12:28   #175
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Default Alloy wheel Installation in 118NE

Quote:
Originally Posted by riturajsharma19 View Post
Reviving an old thread. I have just procured a set of League alloys for my Punto. Now the centre-bore size of the alloys is 73.1mm while the hub size for the Punto is 58.1mm, requiring hub-centric rings of 78mm outer dia and 58mm inner dia.Suggestions solicited
Dear Rituraj Sharma,
It has been always a trouble in finding alloy wheels for Fiat vehicles due to their wierd PCD pattern. If at all you find one, matching the hub dia is again a problem. This is what I did in my 118NE. Grabbed a set of 5nos of 13" - 100 / 114.3 PCD alloys for a cheap price from OLX. The hub dia was 62 mm. Took the help of a lathe guy in the neighborhood who fabricated 5 adaptor rings for just Rs100 each. The matierial he used was a high pressure grade seamless tube. I guess it is used for some steam boiler or heat exchanger. As a result, rust hasnt showed up so far.
I brought the rings home, applied some oil on the inner side of the hub and outer side of spigot ring, hammered it with a mallet. Job done.
To match the PCD mismatch, I used wobble washers. Actually machined out the threads from the wheel nuts of M-800 and reduced the height of the nut. Used this as wobble washers and used SS washers on top of them.
To match the offset as per the 118NE specs, I had grabbed pipe flanges which already had 4 holes at 98 PCD. Only trued the centres, and fitted the alloys.
Coming to your problem, you have to install spigot bushes. It doesnt need any high level of expertise. Any lathe operator can do it for you. Only thing is that you have to specify the dimensions or take the car to him. Explain him that the bush needs to be tight fit on the alloy wheel and smoothly slidable on the vehicle side. If required, you will have to take pains in procuring the material as well.
Regards,
Ilango
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Old 8th August 2012, 09:46   #176
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Default Re: Solution for vibrations after installing alloy wheels

Here is an update guys- as advised by experts here I placed an order at Hub Rings / Spigot rings for wheels 4,75 on July 6th and received my spigot rings on the 7th August. The weekend is gonna be great
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Old 8th August 2012, 17:40   #177
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Default Re: Solution for vibrations after installing alloy wheels

After seeing Riturajsharma's post and the picture, I too went ahead and ordered for a set of these hub centric rings. Always wanted to order a set but never actually did.

I ordered the rings for my Swift (old) which has Lenso alloys. The size that I ordered is 73.1mm-54.1mm. The price came to Rs.1352 after conversion. I used PayPal to pay the amount.

Will upload a picture once I receive my shipment.
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Old 9th August 2012, 12:18   #178
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Default Re: Solution for vibrations after installing alloy wheels

I have a set of 98 PCD alloys on my Punto. After installation, the steering used to shudder at speeds between 110-120 kmph. My dealer got hub centric rings installed. The problem was solved.

Now after 1.5 years, I took my car to the highway and noticed that the steering again vibrates at a speed of 110 kmph, not below that and not above that either. What could be wrong?
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Old 17th August 2012, 22:51   #179
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Default Re: Solution for vibrations after installing alloy wheels

The rings were delivered to me on 14, Aug. The shipment reached me in just 6 days!
Got them installed the next day and they are a perfect fit. Am happy with the outcome.

Here are a couple of pictures of the rings:
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Last edited by Dolphin : 17th August 2012 at 22:52.
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Old 3rd December 2016, 19:42   #180
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Default Re: Solution for vibrations after installing alloy wheels

Guys I got installed 14 inch Neo alloy wheels for my TataBolt. Also got wheel balancing and wheel alignment done.
I could definitely notice an improvement in pick up and it's great.

At 110 to 120 speed the steering would vibrate and I was worried.
I reported the issue immediately to the wheel balancing guys and they ask me to get the car to the shop. The guy wheel balanced the tires again and guaranteed that there would be no vibration even if I drove the car at 160 speed now and was confident in his tone.

And there was no vibration at 120 speed as suggested by the guy.
The problem seem to be disappeared and maybe it was the fault the wheel balancing not being done rightly.
Same night I happened to read about the hub centric ring article in the team BHP site and I was surprised.
This morning I went to Ashoka wheels and one of the guys from the shop by name Amir suggested that 14 inch alloy wouldn't require hub centric rings and he even showed that there was only 1 or 2mm inch gap and ring thickness to 1 or 2 mm wouldnt last long and the Car should ride fine.
Please can someone suggest is that 1 or 2 mm gap absolutely fine?
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