Page 19 - KCRPCA May June 2019

and outs of a 928, and what are the most common replacement parts owners’ use.
While down by the hub, I cleaned and inspected the front bearings to see if they had any wear. I found out that my hubs and spindles were original. Sadly, the larger bearings that the later 928s had were not present.
Another “while you are in there” task, is cleaning and inspecting the calipers. Most calipers will clean up nicely with brake cleaner. I inspected the rubber around the pistons and decided not to open them up. I track my Porsche and I replace the brake fluid every 2 years. Most drivers never change the fluids, but I’d get it done if only to replace it with newer DOT 5. If you don’t know what’s in your car, consult your mechanic.
If you’re capable of changing the fluid yourself, always use precaution while around your vehicle’s paint. Brake fluid is caustic. Also use gloves and eye pro- tection.
Now it’s time to repack your wheel bearings. Replace the hub bearing seal and put grease on the groove in the seal and on the spindle. Push the hub to the dust shields and replace the outer bear- ing, then fully pack with grease. Sounds simple right? Finally, I replaced the brake wear sensors with new wires.
If you’re going to do a lot of your own work, you need to buy the shop manu- als for your car. They all the specs you need to give you peace of mind. For a mechanic there is no guessing.
The last bit of work is bolting up the caliper. After using a piece of wood and a C-clamp to push the pistons back into the calipers, place the new brake pads after smearing anti-squeaking grease on the outer corners.
Finally,inspect the parking brake on the rear wheels and clean it up.
- Edward
MAY / JUN 2019
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