Alternator Bearings, Double shielded vs. doubled sealed |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Alternator Bearings, Double shielded vs. doubled sealed |
ScooterD |
Oct 15 2009, 06:50 PM
Post
#1
|
ScooterD Group: Members Posts: 80 Joined: 6-August 06 From: Los Altos, CA. Member No.: 6,589 Region Association: None |
Being the cheap SOB that I am and not needing a new alternator at the moment, I am rebuilding a spare that I had lying around.
The factory uses double shielded bearings where the shield does not actually contact the rotating part of the bearing, there is actually a small gap on the circumference. The 914 pumps air through the alternator via the fan shroud and over time pumps dirt into the bearings. Has anyone used doubled sealed bearings that actually have a rubber seal that rubs on the rotating part of the bearing and keeps the dirt out? Also the factory bearings have a C3 designation for use at elevated temperatures where the internal clearances are greater so they don't seize up. Any experiences you want to share would be appreciated. (IMG:style_emoticons/default/pray.gif) Scott |
Lo-Fi Version | Time is now: 20th May 2024 - 08:20 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |