WaterH
Well-known member
- Thread starter
- #1,411
So the last tire was the biggest bitch of all to mount. For some reason the S hooks on my chain setup kept slipping off. I invented some new cuss words. But I got the bead locks in. The next problem was my centering blocks. This was the first wheel I put them in.
You notice that there are two blocks instead of one at each spot. On the later wheels I went to the long blocks. I liked the long blocks better, so I made some new ones.
I got the wheel finished and now I need to balance them. Someone asked if I would explain how I do this with a helicopter balancer. So I thought I would. Put it in here. First I Jack up the pax side front tire and lock the hub. Than I remove the rear driveshaft. Since I have a locker in the front diff, I can spin that one tire for balancing.
I mount a excelrometer on the knuckle and a photo cell on the Jack stand.
You can see the photo cell is pointed at the edge of the wheel where I have a reflective sticker. If I turn off the light, you can see how the photo cell is aimed right at the sticker. (Red light)
Now I can spin the tire and get a vibration reading and the photo cell will give me a “clock angle”.
My first run I get this.
You can see I took the reading at 467 RPMs. That equals about 60 mph on these tires. My vibration is .76 inches per second and the clock angle is 12:14.
.76 is not good, but it’s not terrible either. (At least on these bad boys) The first goal is to determine where 12:14 is located on the wheel. While I don’t know exactly where that is, I can make an educated guess based on the reflector location. Once I do that, I install a trial weight there and take another reading. Before I began this, I made a bunch of ballance weights. These round steel weights will look a lot better than the hack job weights I had on the previous tires. ( Old weights to the left of the new weights)
The idea is to lower the vibration with out moving the clock angle.
To be continued.
You notice that there are two blocks instead of one at each spot. On the later wheels I went to the long blocks. I liked the long blocks better, so I made some new ones.
I got the wheel finished and now I need to balance them. Someone asked if I would explain how I do this with a helicopter balancer. So I thought I would. Put it in here. First I Jack up the pax side front tire and lock the hub. Than I remove the rear driveshaft. Since I have a locker in the front diff, I can spin that one tire for balancing.
I mount a excelrometer on the knuckle and a photo cell on the Jack stand.
You can see the photo cell is pointed at the edge of the wheel where I have a reflective sticker. If I turn off the light, you can see how the photo cell is aimed right at the sticker. (Red light)
Now I can spin the tire and get a vibration reading and the photo cell will give me a “clock angle”.
My first run I get this.
You can see I took the reading at 467 RPMs. That equals about 60 mph on these tires. My vibration is .76 inches per second and the clock angle is 12:14.
.76 is not good, but it’s not terrible either. (At least on these bad boys) The first goal is to determine where 12:14 is located on the wheel. While I don’t know exactly where that is, I can make an educated guess based on the reflector location. Once I do that, I install a trial weight there and take another reading. Before I began this, I made a bunch of ballance weights. These round steel weights will look a lot better than the hack job weights I had on the previous tires. ( Old weights to the left of the new weights)
The idea is to lower the vibration with out moving the clock angle.
To be continued.
Congrats on fooling the Terminator. 
