MK2.5 camber adjustment with plumb line

Hi all,

I have the MK2.5 with standard Bilstein suspension and 16 inch wheels.

I’ve stripped the suspension and sub-frames and rebuilt it and am adjusting the toe in and camber with bits of string and rulers.

To measure the rear camber, I’m using a plumb line and measuring the top and bottom of the wheel rim to see what difference there is but I can’t figure out how many mm difference it should be.

The height from wheel center to fender brim is 335mm which (according to the manual) I should set the camber at about 1 degree.

The trouble I’m having is converting 1 degree to mm of difference over the 440mm wheel diameter.

Does anyone here happen to know what it is?

From basic geometry, 1 degree = 7.7mm over 440mm.

(From 440 x sine 1 degree)  

JS

Thanks JS - that makes sense.

You will get a magnetic camber guage on ebay for £20 if you are feeling flush.

http://www.ebay.co.uk/itm/152557134576

that magnetic camber gauge looks good but for anyone thinking of getting one, you need to make sure it’ll fit through the gaps in your your alloy wheels (it sticks onto the brake disk) as you need to have the car weight on the wheels in order to align them.

The diameter of the magnet on this gauge is 55mm - which will only just fit through my alloys.

Good find, Drumtochty, beats pissing about with a ruler and plumb line.

 

They are rubbish (in my personal view)

Get the one below - quality bit of kit you’ll have for years - used mine for years - accuracy proved when having track cars aligned - very little adjustment required. The fluid is very thick so takes a few minutes for the bubble to settle.

Note: always weight the suspension at the right height when setting camber - don’t just raise the car and let the suspension droop.

 

 

 

 

Car on flat level surface, take the wheel off - lower the disc onto a ramp/blocks at exactly the right height for the wheel on the ground as the gauge needs to be on the hub centre part of the disc, not the disc itself.

 

Jarrick it fits through my standard 15" Mk2 and standard MK3 Sport 17" wheels but not through my 2009 Impreza wheels so a bit of a lottery.

The main problem is finding a wall that is 100% perpendicular to zero it against but with a bit of prep that is possible.

Hilux stop talking nonsense the original poster was asking about camber nothing else and the £100 or so unit you are showing. I assume does not have a more Accurate Bubble than the £20 unit or are you saying it does have a better bubble? The more expensive unit is able to measure king pin inclination but Jarrick had not asked for that.

Can you please post the results you have from testing both these units and the standardising measuring equipment you used to produce the comparative data that you supply to show the higher levels of accuracy in camber angle measurement?

If you do not have that and I assume you do not please, refrain from criticising a piece of equipment just because yours cost more.

I use one of this type.  http://www.demon-tweeks.co.uk/Product.do?method=view&n=1243&p=15825&d=124&c=4&l=2&utm_source=Google&utm_medium=Base&utm_campaign=Wheel%20Alignment%20Products&istCompanyId=7bed2d1b-ddc3-469a-b48f-8ad2db8ea4ac&istItemId=xirxrqtprw&istBid=tztx&utm_term=1104001945328&utm_content=Chassis%20Set%20Up%20%3E%20Wheel%20Allignment . No dismantling required and is relatively quick and easy to use.

You can also do king pin inclination with it if required.

I use an app on the phone called Clinometer which is really accurate provided the phone has been calibrated by rotating it a few times about each axis. I confirm its 0 degree is correct against a wall I know for certain is truly vertical. All you need is a straight edge across the wheel to take the reading off.