 2.4 Main Bearings, Replaced and tight |
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| tracks914 |
 May 12 2004, 07:01 PM
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Canadian Member  Group: Benefactors Posts: 2,083 Joined: 15-January 03 From: Timmins, Ontario, Canada Member No.: 153 Region Association: None   |
A friend of mine called me over tonight to look at his 2.4. (It's for his 911 but I try not to disciminate) As he was assembling his crankcase the crank got hard to turn so I told him to take it apart.
His bearings were slightly "smoothed" out, but not damaged. Upon closer inspection I noticed that, when I popped his bearing out there was a small ridge on either side under the bearing. I asked him for his old bearings and found that they were slightly narrower than his new ones and narrower than crankcase seat they sit in. This left a slight depression where the old bearing had sat and raised the edges on the bearing seat. I believe this is why it tightened up on him. I told him to sand the ridges smooth to the same height as the rest of the seat and try the bearing again. I will find out more tomorrow. Has anyone ever seen this before? (IMG:style_emoticons/default/confused24.gif) |
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