: Bad shake after installing wheels?
24-03-07, 07:09 PM
So i just got a set of 17 inch tsw revo's wrapped in 205/45/17 inch michellens i put them on my 1999 saab 9-3 and the steering shook horrible and i noticed they wernt balanced so i took the wheels to be speed balanced and now the shakeing is a little better but at accel and decel it shakes horrible the steering is just sloppy i realize i probobly need an alignment now but is there something im missing this is so wierd no other car ive been in this situation with ever shook like this... ill also be lowering the car soon too maybe that will help
24-03-07, 08:22 PM
Can only suggest a rebalance - something mustn't be right. Try talking to the guys that balanced the wheels before, they obviously aren't right (so its basically their problem!!)
24-03-07, 08:27 PM
Take a wheel off and take a good look at the hole in the centre and the spigot on the hub it locates to; many people report such symtoms as yours after fitting a new wheel set and it is often when an aftermarket set has been installed without spigot rings [hubcentric rings].
The wheels will not run right if they are not concetric [central and true] to the hub.
24-03-07, 08:57 PM
Yeah - wot he said (I was running on the assumption that you'd have made sure the wheels fit the central hub, but of course that's a bit of a reach for an assumption!!)
Eric in Lockport, N.Y.
24-03-07, 09:19 PM
Check the actual rims for a wander. Even if they are balanced, all it takes is a bent rim to throw the steering wheel all over the place....
25-03-07, 12:30 AM
I see no need for alinement, unless the car also wanders and "mal-tracks".
Hunter RoadForce 9700 and a skilled wheel/front end technician are the way to go..
04-06-07, 10:43 AM
I just put 18's on my viggen and it shakes horribly at 45 mph. Anyone have an Idea how to fix this? I had the wheels balanced prior to putting them on. I also checked the tire pressure
I just went through this, too. I finally decided to upgrade to new wheels and Goodyear tires after living with four original rims with various dents, flat spots, and curb scrapes. After the original installation, I had a worse shake at 55mph than on the original wheels. When I took the car back to the shop, they rechecked the balance and found one wheel/tire that was "out." It was rebalanced and I hit the road again. A little better, but not much. After a couple of hundred miles, I decided to rotate front to rear to see if that helped. I noted that all of the tires were running more eccentric than I would have expected.
When I returned to the tire store and explained the situation, they put the assemblies on a Hunter Roadforce 9700 and decided that the tires were too far out of round to salvage. In the meantime, I looked at the hubcentric rings one the car and noted that they were very loose. They apparently did not have the right size rings in stock originally and used the closest ones they had.
Finally, new Continental tires with meticulous installation, including multiple breakdown and reorientation for optimum balance. The guys did a superb job this time, and the new rings are on order. The balance is nearly perfect, and I am sure that the proper rings will make it complete.
In short, if you are not satisfied, make sure that you press your case. Have the tire store go to this web site and understand that they may have to be a little more careful with our Saabs than with the average car or truck.
04-06-07, 11:49 AM
excuse my ignorance, but what are hubcentric rings?
Factory wheels "pilot" onto the central portion of the hub; the lugs are supposed to hold the wheel onto the car but not really serve to keep it centered. Aftermarket wheels usually have oversized holes in the center so that they will not be too small to fit any particular vehicle, and then a specific plastic or aluminum ring is fitted to align the wheels with the hubs. Gorilla is one brand: http://www.gorilla-auto.com/products/?sfID1=270&sfID2=278
Please excuse the bump. Just got the proper hubcentric rings installed, and all is as it should be regarding balance. Now I am considering the six-point subframe brace and the rack brace to tighten things up a bit. Of course, a ragtop with 100k on it is only going to get so tight regardless...
05-06-07, 08:13 PM
I have the same problem after i bought a set of viggen replicas online.
The car would shake horrilbly arounf 45 or so. I had them rebalenced 3 times and they still shake.
Would i need a differnt hubcentric ring even through i have viggen replica rims?
I am not familiar with the Viggen replica rims, but I can suggest a simple test. Jack up one corner of the car and remove all of the lugs from that wheel. Try to move the wheel up and down (radially, not axially) on the hub to see if there is any play. If the wheel can slop around, you need some sort of hubcentric ring. If it can spin but not move "sideways," it already has the proper inside diameter to fit the hub correctly.
Of course, you could pull the wheel off and measure the main bore diameter instead, but I'm assuming that not everyone has an inside micrometer in their pocket. My rings have an inside diameter of 65.07mm to fit the hubs and an outside diameter of 73mm to fit the wheels. Good luck.
10-06-07, 01:17 PM
IT WORKED! IT WORKED! I bought the hubcentric rings, installed them yesterday and my viggen drives better than when it had the viggen wheels. I will post pics soon!! absolutely no vibration which means my factory rims must have had at least one bent. My BMW will be parked for quite awhile now! lol