Camber on rear wheels

Front axle, springs, shock absorbers, wheels, bearings, calipers, drums...
Tuning: suspension, discs, alloys upgrade...
NO parts requests here, please use our V3M BUY & SELL corner
User avatar
volvodspec
Posts: 1921
Joined: 06 Dec 2008 09:35 pm
Location: Netherlands.
Contact:

Re: Camber on rear wheels

Post by volvodspec » 16 Jul 2010 12:05 pm

alignment is both the camber and to-in/to-out

+/- 0,16 deg of 0 woud also mean that a to-out of 0,16 is tolerated by factory spec; i'm having a bit of troubles imagining that as it would get a very weird handling :?
i've had them all between -0,20deg and -0,03deg

i do have to admit that they used the wrong procedure for bending the axle, it shows weak points at the bends; if they would have used a slightly higher grade steel or pre-heated it, it would have been a lot stronger allready.

Ride_on
Posts: 2262
Joined: 26 May 2009 05:34 pm
Location: Belfast, N. Ireland

Re: Camber on rear wheels

Post by Ride_on » 16 Jul 2010 02:57 pm

If you havn't figured out by now I am exceedingly obsessed by rear toe-in, I have never found camber to be an issue.

Toe-in particularly on the left side without the tie bar, can be seen as the wheel is not in the centre of the wheel arch (I think), but peering down from above also shows it more accurately. The different light reflection intensity also seems visible in photo's with steering wheels straight ahead.

As discussed above I think it is the result of reving up for wheel spins with good tyres on a good surface, mainly because it happens fairly equally on 1.4s and 2l.

I also measured the axle recently, it is about 4mm narrower in the curved parts (horizontally), making the curves weak for toe-in forces.
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7

Ride_on
Posts: 2262
Joined: 26 May 2009 05:34 pm
Location: Belfast, N. Ireland

Re: Camber on rear wheels

Post by Ride_on » 29 Jul 2010 12:30 am

Something strange...I have my rear axle out and stripped down. Measuring the angle of the toe-in with 2x 1.5m box section lengths I seem to be getting an in-spec angle. Its 4mm difference over 1.5m (which equates to <0.08 deg for each wheel).

I am measuring in the straight position of the axle box bits section and assuming it sits flat.

Either;
1. The axle doesn't sit flat normally and I am measuring it in the wrong plane, and it is bend in a different one.
2. The axle rotates for some other reason and the camber starts to make toe-in because of the rotation.

My anti tramp bar/radius arm was very hard to remove, and the bushes where knackered, I wonder is it nothing to do with the axle bending and its just rotation.

If that was the case it would mean the rear radius arm adjustment is very important, especially for lowering.

Will have another crack at it on Friday. Any suggestions on axle 'flatness'/ angle to ground? What is yours, what should it be?
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7

Post Reply