My problem solved Quote:
Originally Posted by santosh.s I checked with the maruti dealer, but they can't help it. I met a service manager who was quite co-operative, took me to the workshop to understand what exactly I need. But he said he can not get those rings made. However, he offered to lift the car and adjust run-outs if any, though! Since that wouldn't be a permanent solution, I didn't do that.
Then I visited "pitstop" guys as suggested by Ajay. He said he can make hub rings (asked for Rs 300 per ring for aluminium material, that adds to the cost of alloys which is already a costly affair, especially in bangalore!). I am waiting for my 5th alloy before putting rings. (one of the piece in the set was "showroom" piece with small chippings, which I had to reject and demand a new replacement)
One good thing was that the guy said he will firmly fix those rings to alloys, so that you need not worry about misplacing... don't know how. For directions- take the road below richmond circle flyover wing towards KH road (lalbag), pitstop is located at the next signal that you find under the bridge itself. |
I finally spared some time to rectify the vibration issue after getting the 5th wheel. Luckily it turned out that centering was NOT the culprit, rather it was due to errors in balancing which looks like the most common reason behind high speed vibrations (another being bends/deformations in wheels). Before getting into complications of getting hub-rings made, I followed a couple of suggestions which I had received from tbhpians and a few auto vendors-
1. Get balancing redone from a reputed and reliable place. I was told that many tyre shops have 2nd hand balancing machines which are prone to errors, especially for 14" or bigger wheels! So I went to a recommended place called "vijay alignment center", a specialist in the field. It was found that there were gross mistakes, he thought as if the earlier guy had randomly put some weights and called it balancing
2. Get nuts which have inside cone like portion with bigger outer diameter, required if existing nuts are too small for nut-bore size of alloys. This ensures easier centering as you tighten wheel nuts. Apart from possibly causing centering problems, tiny nuts can even damage alloy holes in long run. In extreem cases the wheel can just come off the hub! Also, the recommended nut order for tightening should be followed. I am using stock nuts which seem to be OK. Moreover, I didn't find nuts with bigger "cones" (probably called as studs??)... So I did not replace them as of now.
After correcting balancing, that abnormal high speed vibration vanished (tested till 130kmph) From this experience what I conclude is that all after market alloy wheels definitely rely on lug-centering. Hub rings should be required only in rare cases where somehow that is not enough. I would suggest a quick check to ensure proper centering whenever alloys are fitted- just see that the gap between the center bore and the hub is uniform (before putting center caps), and try spinning the wheel and observe any wobbling... of course this is very crude way (to the best of your eyesight!), but it will readily point out any visible mistake even before taking a test drive |