Crown PE4500:
Bottom drive unit seal

Got a pe4500 that has oil leak coming out where the drive tire sits. I believe there's an oil seal there. Anyone can let me know if this is doable with drive unit installed or does it have to come off?
  • Posted 29 Apr 2022 08:37
  • Discussion started by marcos_m
  • California, United States
Showing items 1 - 7 of 7 results.
Yes it's driving me crazy. I tried to beat it out and the bearing broke only leaving the race inside. I did get the old snap ring out.
  • Posted 29 Dec 2023 06:28
  • Reply by Steven_Womack
  • Ohio, United States
PyRo
I'm guessing you're talking about the big one on the dry side of the lower drive unit? Its held in with a giant snap ring which requires special snap ring pliers
  • Posted 29 Dec 2023 00:30
  • Reply by Triggs
  • California, United States
Hey how do I remove the old drive unit bearings?
  • Posted 27 Dec 2023 19:50
  • Reply by Steven_Womack
  • Ohio, United States
PyRo
Hey, so I dropped the bottom half of the drive unit. How do I remove the old bearings?
  • Posted 27 Dec 2023 19:32
  • Reply by Steven_Womack
  • Ohio, United States
PyRo
Thanks for the info. Was able to get it done!
  • Posted 26 May 2022 12:09
  • Reply by marcos_m
  • California, United States
Thanks for the info. Axle and tire r out. I didn't want to lower bottom half if I didn't have to. Will try and let you know how it went.
  • Posted 29 Apr 2022 20:56
  • Reply by marcos_m
  • California, United States
Very doable, have done hundreds literally. Jack up put on stands. Drive roll pin out of the nut end of axle. Turn steering all the way to right, remove nut size 1 5/8. I used a crowsfoot about 2 ft hit the footed end and pointy end in axle. Grease it then beat out. Jack up high enough to get drive tire out, check your adapter and bearing it rides in for wear. You have a inner and outer, your definitely gone want to change both. Drain oil if there's any in it, 1/4 inch drain plug socket head. Pry seals out, check that retainer ring is not broke on inner. Tap new seals in with small hammer, or my co worker made a installer that pulls both seals in at same time. I made it he dreamed it up. Lol First time I messed two seals up it was history for me and my RD. That's best case scenario, you may have to drop lower drive and get it where it meaning the axle can be beat out with largest hammer you can find cause if it hasn't been greased or if it has alot of miles it's gone be lack of lube seized or wear seized. Put it on floor, after draining oil, take 6 3/8th bolts out of mating of upper and lower drive unit, Jack up slowly, separate, get it out and beat the **** out of it., There are shims between. Upper and lower drive unit , careful not to lose or drop in lower drive and cork gasket that you may be able to reuse. Only plus to dropping it is seals are very easy to install. Reassemble , fill with oil and ride brother. Hope this helps. I can give you Crown pns if needed. Let me know
  • Posted 29 Apr 2022 13:30
  • Modified 29 Apr 2022 20:53 by poster
  • Reply by Ratm
  • Florida, United States
Stoney

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