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How-To Front Wheel Bearing Preload Lexus Lx470 / Toyota Land Cruiser UJZ-100

This is a how to video on how to break down your front wheels, remove the stubborn cone washers, and wheel hubs to reset your front wheel bearing preload and re-assemble the vehicle. Please read everything below before doing anything. If you are not comfortable with the process continue researching until you are.

DIY Spindle bearing lubrication tool video:
https://www.youtube.com/watch?v=WS_VvLTx_JA

Some important notes:
The torque value I used on the 54mm nut to set the bearing preload is variable and is not the same for every vehicle. I simply stated what was used to get my wheel bearings to 13 lb ft break away torque value. The break away torque is what determines how tight the 54mm nut is - factory specs are 9-14 lb ft. You use a fish scale to determine what the break away torque is - as shown in the video. I've read threads where people used anything up to 70 ft lb on the first nut. I personally would be skeptical of exceeding the initial settling value of 43 ft lb on the first nut however. Both sides were consistent at around 26 ft lb to achieve 13 lb ft break away. If your threads, washers, and nuts are greasy your torque values will be different than if those items are completely clean.

Setting Wheel Bearing Pre-Load:
Tighten the 54mm nut to 43 ft lb.
Spin the rotor atleast 2 full rotations in one direction to settle the wheel bearings.
Loosen the 54mm nut to hand-loose.
Tighten the 54mm nut to 43 ft lb again.
Spin the rotor atleast 2 full rotations in the same direction as previously.
Loosen the 54mm nut again to hand-loose.
Begin the tightening process to achieve 13 lb ft break away. When reading the break away value rotate the rotor in the same direction as previously. I started with 17 ft. lb and worked up to 26 ft lb on the 54mm nut.
After you torque the 54mm nut, and read the break away torque value, the rotor will spin with very little resistance. This is normal and you should not be trying to set this "free wheeling" resistance to 9-14 lb ft. You should only see 9-14 lb ft once after each initial torquing of the 54mm nut.

Install the locking tabbed washer and then the 54mm jam nut. Tighten the jam nut to 47 ft lb (not 43 as stated in the video).

Tools needed for this project:
22mm lug nut socket
Screw drivers
54mm wheel bearing socket
Fish scale - 0-20# is best for this purpose
Torque wrench(es)
drift / punch
hammer
small sledge hammer
flat blade scraper
brake cleaner
rags

Keep in mind for items like scales, torque wrenches, gauges, etc - that they are most accurate in the middle of their specified range. At the extreme ends of their scales the accuracy of these items diminishes. I searched for a 20# fish scale instead of a 50# for this very reason. If you have multiple torque wrenches, I always pick the one with the torque value most centrally located within the wrench range.

Видео How-To Front Wheel Bearing Preload Lexus Lx470 / Toyota Land Cruiser UJZ-100 канала Lilly Automotive
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Информация о видео
3 июля 2017 г. 21:09:34
00:10:25
Яндекс.Метрика