Alignment?

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Feb 14, 2009 05:01:41
philmckinney

The toe measurements on the rear of my b is -0.40 degrees on the right and +0.41 on the left. Is there anything I can do to adjust this? Thanks, Phil

Feb 14, 2009 05:08:08
crustyoldfe

Can't adjust "toe " on a live rear axle. You're problem is that the axle is canted. It needs to be straightened by moving the axle on the leaf springs in order to get it perfectly perpendicular to the car's longitudinal axis.

Bob





Feb 14, 2009 06:10:56
Pat Bailey

I just put in new poly spring pads and am now wondering if I need to measure the rear axle, how do you do that?

Feb 14, 2009 06:55:37
fast-MG.com

Phil, a couple of thoughts come to mind: did you measure the rear toe at the tire sidewall or the rim or? Most tire sidewalls do not run true to the wheel center-of-rotation and non-machined wheel rims are not true either. If your measurement is accurate then your car will "dog-track" slightly, possibly not enough to notice. Loosening the U-bolts and adjusting the axle may help but probably not worth doing unless you're confident in your measurement. I sell adjustable track bars to the racers and I suggest to them to use the track bars to square up the axle in the car. I also offer a service to align the rear axle for toe and camber which is done on the bench in my shop. Most Banjo axles come with some toe OUT which negatively affects handling. I can usually add up to -.75 degrees of camber.

Feb 14, 2009 07:21:58
philmckinney

fast-MG.com Wrote:

Quote: "
Phil, a couple of thoughts come to mind: did you measure the rear toe at the tire sidewall or the rim or? Most tire sidewalls do not run true to the wheel center-of-rotation and non-machined wheel rims are not true either. If your measurement is accurate then your car will "dog-track" slightly, possibly not enough to notice. Loosening the U-bolts and adjusting the axle may help but probably not worth doing unless you're confident in your measurement. I sell adjustable track bars to the racers and I suggest to them to use the track bars to square up the axle in the car. I also offer a service to align the rear axle for toe and camber which is done on the bench in my shop. Most Banjo axles come with some toe OUT which negatively affects handling. I can usually add up to -.75 degrees of camber.
"


Dave:
I had the front end aligned and they gave me the measurements for the rear at the same time. They also said they could not adjust the rear end.
Thanks,
Phil

Feb 14, 2009 07:24:15
crustyoldfe

Looking at the figures you've given, the toe out on one side and toe in on the other (exactly opposite or there about) does indicate that the axle is off a bit. Less than 1/2 degree won't dog track much but it's worth pondering and maybe doing something about it.
It's off just enough that it would bother me but still be safe to drive. It all depends on how exacting you wish to be.

And as another note, you don't have a banjo axle.

Bob

Feb 14, 2009 07:32:37
fast-MG.com

Phil, this could also be caused by unequal spring arch from side to side.

Feb 14, 2009 08:18:30
crustyoldfe

fast-MG.com Wrote:

Quote: "
Phil, this could also be caused by unequal spring arch from side to side.
"


Je concur.

Bob

Feb 14, 2009 09:07:05
tim65mgb

The axle can be adjusted by loosening the U- bolts? I was made to believe there were pegs to lock/center the axle to the springs. My car look like the axle sits the right and looks to be slightly toe in. i will measure it.

Feb 14, 2009 09:45:52
crustyoldfe

It's true, there are locating studs and holes but there may be just the tiniest bit of play that you can use. Try it and see.

Loosen the bolts and giv'er a whack fore and aft. Careful what you hit or pry on so as not to bend or distort anything.

Bob

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