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Showing results for tags 'wheel bearing'.
Found 5 results
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2001 911 C4 Cab I heard a noise that sounded like a brake dragging, put the brakes on noise stayed the same, did left and right turns no change in the sound, checked the temp with a IR meter left and right read the same, any ideas?
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This article describes with photos how to replace a wheel bearing using the SIR Tools B90-P2 tool. There are no other "step by step" articles on any forums, so this article complements the others you find on the Internet to show how exactly to do it with this particular tool. Step 1. Remove the wheel carrier from the car. This photo shows where this article starts, it is specific to removing the bearing, not removing the wheel carrier. Step 2. Remove the wheel hub from the carrier, these three photos show how to put the tool in place. Basically, you draw the wheel hub out of the inner bearing race, it comes out easily. Step 3. Remove the bearing from the wheel carrier. Heat the aluminum wheel carrier to 100 degrees Celsius, do it evenly, it takes about 3 minutes, measure the temperature with an infrared thermometer. Note, there are other articles on the Internet which use the wrong standard for temperature (they incorrectly say Fahrenheit, it should be Celsius as per the Porsche Workshop Manual). Your basically drawing the bearing out, into the large cylinder. You can use the wheel hub as a support and conveniently turn the bolts with your 24mm and 27mm spanners. Step 4. Insert the new bearing into the wheel carrier. Prior to doing this, clean the bore of the wheel carrier with polishing cloth (your just cleaning it, not removing any aluminum). Put the new bearing in your kitchen freezer overnight prior to inserting it. This is an alternate approach to Porsche Workshop Manual which has you heat up the wheel carrier to 100 degrees Celsius. The freezer method is easier on your hands since you don't have to touch hot metal (if you do use the heating method instead of the cooling method, wear work gloves as usual). The tools in this step apply force on the outer part of the bearing and the aluminum casting. The photo shows the bearing half way in. Step 5. Insert the wheel hub into the bearing. Remember to put the splash shield in place prior to actually installing the wheel hub into the bearing. Notice how the tools thrust bearing which is silver in the second photo below is used with the smaller circular die. Basically you draw the hub into the bearing with force being applied between the inner race of the bearing and the cast iron wheel hub. Step 6. Re-install the newly restored wheel carrier into the car (this is not covered by this article since there are many others on the internet). Step 7. Enjoy your car - Mark Nickson, Member of SAE, PCA, and MBCA for over 30 years.
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I was looking at the Cayenne fluid prices at Pelican Parts, and I noticed a section with wheel bearing grease and the following note: " It's a good idea to clean and repack your bearings once a year." I've never cleaned and re-packed my wheel bearings. My cars have always had bearings that appear to be sealed. I haven't found anything about this process for the Cayenne via google or in the forums here. Is this just a mistake at pelican parts, or should I be doing this? Has anyone cleaned and re-packed the wheel bearings on their CTT? Thanks. -
Hey guys....I have a clicking coming from the left rear at low speed. I can hear it best when idling to a stop. It does seem speed dependent as it is faster at faster speeds. It seems to go away under acceleration, but I cannot be sure as my exhaust is pretty loud. I jacked the car up and spun the rear wheels, but cannot hear the noise. There is some thumping from the transaxle, but not the same clicking. I checked the heat shield to make sure it was not hitting the rotor. I have taken the wheels off, and spun without the wheels and cannot hear it. I have taken the rear calipers off and removed the rotors to check the emergency brake. There is not a rub or anything obvious that I can see that is hitting or rubbing. I have even removed the center caps and that is not it. I cannot hear it when the weight is off the car. I can hear it when I push the car in neutral. The best way to describe the noise is that is sounds like an old fashioned speedometer cable that is about to break. The car drives fine and everything else seems ok. There is no noticeable noise at highway speeds. Any help or advice would be appreciated!
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Ok, I'll describe it the best I can. The noise I am getting is obvious at highway speeds. I you have travelled on a jet often you will know what I am talking about. It is a cyclic whining noise. It does not go away if I put the car in neutral and foot off the gas pedal, so I'm assuming it has noting to do with the drive train. On back streets there is no noise but again foot off the gas and in neutral, I can feel a mild grinding with my foot barely on the brake pedal. Any help on how to confirm bad bearing will be appreciated.
