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front end tech
Posted: Mon Oct 20, 2003 8:14 pm
by robbie
got a bit of free-play up and down on front end on each wheel, not much, but noticeable.
how can I tell if its the wheel bearings, or the swivel bearing needing another shim?
Posted: Mon Oct 20, 2003 9:32 pm
by robbie
anyone?
Posted: Mon Oct 20, 2003 9:37 pm
by Area54
With the wheel off the ground, the steering wheel locked, is there play top and bottom and left and right, or just top and bottom? L & R, wheel bearings only, T & B wheel bearings and or knuckle bearings.
To measure steering knuckle preload, buy a cheap fish weigh scale from crazy clarks (or similar cheap import store) for about 4 bucks, get a shim pack and dial up the specs for your bundy. Easy.
Posted: Mon Oct 20, 2003 9:42 pm
by Area54
Is it more pronounced on the passenger wheel? The wheel bearings have more of a tendency to loosen on this side due to right hand thread of the lock nuts.
Posted: Mon Oct 20, 2003 9:45 pm
by robbie
they were repacked 6months ago.. so should they be up for a service soon?
Posted: Mon Oct 20, 2003 9:53 pm
by Area54
Prolly not a repack, unless you've done 35,000 - 40,000km since last service, but might need a retension. Easy to do yourself, you just need to be methodical if you haven't done it before, and a few special tools.
Posted: Mon Oct 20, 2003 9:54 pm
by robbie
yer, I have done it before, just wondering what it might be..
cheers
Posted: Mon Oct 20, 2003 10:02 pm
by Area54
Sounds more like the wheel bearings then, if they were repacked recently, and if you haven't been jumping the truck. If you have more play in the knuckle bearings than spec, you would need some thinner shims to apply more preload, also you would need to measure the centreline of the knuckle to ensure the cv is held centrally by the spindle.
Posted: Mon Oct 20, 2003 10:06 pm
by robbie
Area54 wrote:also you would need to measure the centreline of the knuckle to ensure the cv is held centrally by the spindle.
woops, didn't know about this..
Posted: Mon Oct 20, 2003 10:36 pm
by dumbdunce
the knuckle bearings hardly ever go bad unless you drive really hard and/or in a lot of water, and it's so easy to just nip up the wheel bearings to check anyway. drop the locking hubs, spin the BFN's# up, test wheel wobble.
# Big
Nuts!
Posted: Mon Oct 20, 2003 10:38 pm
by robbie
might have to do this.. should have done it tonight after work, but fark it..friday it is