Rear Wheel Alignment FRV

[ChrisTopper]

Hi, my vehicle is suffering rear inner edge tyre wear. I am aware there is some adjustment that can be made on the lower arms, my question is - is there any adjustment that can be made to rear wheel alignment. I believe that the 'adjustment ' nut impacts on the rear camber and is adjustable for each wheel. 

Anyone can provide some more information on the subject or point me in the right direction ?

My vehicle has clocked up 145k miles and has always been a bit heavy on rear tyres, even after 4 wheel alignment at a reputable garage chain, in fact on that occasion an adjustment was made but insufficient adjustment to be within tolerance. The cars history is known and no accident damage that could account for my problem. BTW the car drives fine and handles well in any weather, its just I fancy having a go at getting it to be more gentle on tyres.

Thanks Chris.

[ChrisTopper]

To clarify..... there is a 10 point nut on the rear lower arm, this provides adjustment for the rear Toe. Ive found the specs and on one occasion , during 4 wheel alignment it was adjusted.

Can anyone provide any further information about the process, socket size etc. Direction of nut rotation vs toe in or out as I hope to be able to make this adjustment myself. Most other Honda's appear to have 3 bolts securing said arm.

Thanks

[Trevor]

I adjusted the rear arms many years ago but were tough to loosen given where they are located so some effort may bew required to free them up.
With four wheel alignment on this setup it is important to check and adjust from the rear first as a lot of operators adjust the front to compensate for the rear readings which is not what you are looking to do

[ChrisTopper]

Hi thanks for the info esp tracking rear first. 

[Wuzhee]

Hi Chris!

The major cause of the inner tyre edge wear is due to extreme camber change caused by worn out bushings in the upper arm.

The adjuster bolt-nut combo which goes through the back knuckle bushing does not contribute much to the wear, it affects the car's forward rolling behavior.

 

There are several adjustable camber kits available, which solves the tyre wear problem.

Hardrace

Cheaper Noname

Febest Left side

Febest Right side

[ChrisTopper]

Hi Wuzhee, I have fitted replacement upper arms and adjusted them. On checking rear wheel toe, the nearside was showing it was toeing in. Worked out the 10 point nut has nothing to do with toe, its adjusted by slackening locking nut, item 1, then adjusting via item 2. Item 3 is an offset washer and fixed plate, by turning item 2 the offset washers contact with fixed plate 'moves' the arm.

I setup a DTI and adjusting item 2 by approx 10minutes (on a clock face) I achieved 0.2mm change to the toe, where I was measuring it. 

I rechecked both rear wheel toe's and are now at a setting more in keeping where it should be, i.e. slight toe-in.

For info turning item 2, near side arm,  makes the wheel toe more in an outward direction measuring from the center point of the wheel facing forward and measuring off tyre wall. Im aware tyre walls are inconsistent in their shape however as the wheel was locked and the DTI remained fixed then a true reading was achieved.

 Thanks to everyone for their assistance to me.