Oil leaking out of type 4 fan

Discussion in 'Mech Tech' started by Bkind, Aug 13, 2022.

  1. Hey everyone.
    Before I begin:
    * 77' type 4 rebuilt with '78 block.
    * 1500 miles put on it since re- build.
    * Took what I could from old block to save money (old motor had 132,000 miles on it) 16604015116423344758272777730867.jpg 16604015585414682988479769889694.jpg 16604015116423344758272777730867.jpg 16604015585414682988479769889694.jpg 16604016014263876858453975535684.jpg


    I was driving to work, I felt 3rd gear slip for a second and my battery light came on.
    I began smelling oil burning and when I was actually able to check to see the problem, I had oil leaking out of the center of my fan.
    Does anyone have a idea as to what it could be and whether motor needs to come out?
     
  2. MorkC68

    MorkC68 Administrator

    There’s an oil seal on the end of the crank behind the fan hub.

    Take fan off, remove hub and you’ll see the seal & hopefully where it’s leaking
     
    snotty likes this.
  3. If the oil seal has gone, it’s easy to replace in situ. But is the alternator belt still intact?
     
  4. Fan hub might have a groove worn in it from the seal.
     
    Gooders and MorkC68 like this.
  5. Did you fit the o ring on the crank before the fan hub ?
     
    rstucke and Gooders like this.
  6. mikedjames

    mikedjames Supporter

    The gear slipping is the other end of the engine . . oil leaking out from the other end onto the clutch can do this.. Just a thought - how much oil is in it .. like too much . does it smell of petrol (as its FI this is unlikely) ?
     
  7. Belt is still intact
     
  8. Do I need to pull motor to remove crank n such?
    I did all the work the first time while motor was out.
     
  9. Yes, I pulled everything off n put everything back on.
     
  10. Can I do all the work with the motor still in the bus?
     
  11. Thank you everyone
     
  12. Zed

    Zed Gradually getting grumpier

    The fan end yes, the slipping clutch possible oil contamination ... well you know where the flywheel oil seal is.
    Alt light too - check the fan hub bolt?
    Why is your "oil" reddish brown? :thinking:
     
    snotty and mikedjames like this.
  13. Not sure about the color.
    Maybe my phone screen?
    Clutch/ fly wheel are new, throw out bearing was re used, new one had big chip in it.
     
  14. Theres two..

    [​IMG]


    Sent from my SM-T580 using Tapatalk
     
    nicktuft, MorkC68 and snotty like this.
  15. Hello all.
    I figured I would post an update to this specific thread to keep it potentially active.
    I used a product called "steel stick" to re form the side of the slot for the crank woodruff key.
    Everything was put back together and I was able to take it for a relatively normal drive.
    It sounds a little rough.
    I'm assuming the ECU needs to re- configure itself after sitting.

    Thanks again to everyone who helped me navigate my problem.
     
  16. No. The controller in your aircooler is nothing like the ECUs in modern cars. It has no brains.
     
  17. Zed

    Zed Gradually getting grumpier

    Timing might be out of whack after messing with the slot. You might be wise to establish true TDC. and make adjustments.
     

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