Release time : 2015-06-10 13:09:19
By Bearing Manufacturer>Bearing News>How to Change Wheel Bearings?Is It Possible All By Yourself?
So, you're driving along and you hear a disturbing sound coming from the vicinity of one of your wheels. Sounds a bit like rushing water? Something scraping along under the car?
Once you've eliminated the other possible causes (brakes gone metal to metal, a stick or stone caught in a wheel) you may have to admit it - your wheel bearings may need to change,or maybe you just want to inspect them and see if they have been packed properly ,and hopefully avoid hearing any disturbing noises!
NOTE: Change your wheel bearings is also highly recommended if you have driven through deep water - high enough to splash into or near your wheel bearings themselves, as the sudden cooling can cause them to ingest water, and that's assuming your bearing seals were in a good condition in the first place!
Then ,how to change wheel bearings?Bearings are pretty simple to inspect/change, and for most Ford's, especially around the EF/EL era, they are also pretty cheap.
1.Take the wheel off
2. Brake calliper off (2 bolts at back of it ,about 10-12mm), use wire to lash it to the spring or something , keep the weight off the brake lines!!! Make sure you don't let anybody get in the car between now and when you bolt them back on - if they accidentally step on or brush the brake pedal, you may be cleaning up a brake fluid spill not to mention having to bleed the brakes & re-insert the brake pistons in the calipers after careful cleaning!
3. Take the grease cap off the hub (use a screwdriver to pry it off).
4. Wipe away the greasy crap underneath so you can see what you're looking at
5. Take the split pin out (use pliers - preferably needle nose) - make sure you don't lose it. It is a good idea to change the split pin, as bending and re-bending weakens it , each half is about 2mm thick and the pin is about 30mm long, so buy one in advance.
6. Undo Nut and remove (good idea to place these bits in a container. The good Tupperware always goes down a treat , your wife/hubby/partner will love it .
7. Pull the hub off.
8. Clean all the old grease out from the inside of your brake rotor with a rag, make it all spotless (to avoid any incompatibility with greases). Use an old paint brush and some parts-wash, kero or turpentine to wash the bearings clean - do NOT use petrol!!!
8.1 - Carefully inspect the bearing for signs of damage or corrosion. Both the bearing rollers & outer race should look like a dull chrome.
8.2 - Carefully inspect the seal wiper lip for signs of wear. Replace if any wear is apparent or if water / rust is found. 9. Time to get messy with a high temp bearing grease - HTB - (you can get a suitable grease from auto parts store - just make sure you tell them what you need it for) usually for less than 15 buckeroonies a tub.
9. Time to get messy with a high temp bearing grease - HTB - (you can get a suitable grease from auto parts store - just make sure you tell them what you need it for) usually for less than 15 buckeroonies a tub.
10. Pack the cleaned or new bearings by squishing them into the tub and pushing grease into them - very messy, but do it properly.
11. Slide the new (packed) Stainless Steel Bearings onto the spindle where they belong (on greased components). The rear one can be put on the steering knuckle 'protruding bit' (make sure it's the right way around) and then carefully put the hub back on. Push it back and a little bit of grease should squeeze out - if you've put enough on, then put front bearing in place and push it all in.
12. Then put the retaining washer followed by the nut back on, and do it up gradually while turning the rotor. You will probably be surprised how far it does up with a spanner, even though you may think you put the hub back on all the way.
13. Then install the Split pin. Wrap it around the nut retainer by bending it into place. The idea behind this is that it will stop the nut from undoing if it comes loose...
14. Make sure it's all secure
15. Then lightly grease inside of the Grease Cap to stop corrosion (DO NOT fill this with grease) and put it back on - tapping it gently into place.
The grease cap - apart from keeping the dust out - is designed to provide an air space for the excess grease to expand out into when it gets hot. Jamming this cap full of grease results in the grease having no where to go, and may actually result in the High Speed Bearings overheating.
16.Relax. Crack a beer - you've done it! Well done. It's easy to learn how to change wheel bearings.
If you're just checking the Full Ceramic Bearings, when you have them out, make sure they have sufficient grease on them and they aren't marked or scored. If they are greasy and smooth ,they're most likely fine. Even if you only check them, it's a good idea to remove the old grease and replace with new wheel bearings.