[FC] More ? for the masters; 90 weight leak

[Paul Steinberg]

To further add to the information base, check the input shaft for straightness by rolling it across a piece of glass or a surface that you know to be perfectly flat.  Many input shafts have a slight bend in them because they were damaged when the transaxle was pulled from the vehicle.  Paul in CT
  ----- Original Message ----- 
  From: Larry Forman 
  To: The Corvanatics list 
  Sent: Tuesday, November 08, 2005 11:31 AM
  Subject: Re: [FC] More ? for the masters; 90 weight leak


  To Jim's list, I would add to always replace, or at least inspect, the lockwasher holding in the transmission shaft seal.  This lockwasher does not really hold in the seal, since the friction of the snout to the seal does that, but the lockwasher serves to minimize the transmission shaft movement.  If the internal diameter of the lockwasher has been worn, then the transmission input shaft can whip and tear up the input seal.  Often you can see that the inside diameter of the lockwasher has been worn and even has a slight lip on it from the metal being slowly but consistently displaced.  This creates an excessively large diameter.  The lockwasher is inexpensive to replace.

  -- Larry
  ----- Original Message -----
  From: "James Davis" <jld at wk.net>
  To: corvanatics at corvair.org
  Subject: Re: [FC] More ? for the masters; 90 weight leak
  Date: Tue, 08 Nov 2005 09:09:38 -0600

  > 
  > Sounds like you have a leaking clutch input shaft seal.  The seal 
  > is located in the clutch throughout bearing shaft. This is not an 
  > uncommon affliction.  Remember the transmission input shaft goes 
  > from the clutch disk to the very front of the transmission (it is 
  > approximately 24 inches long).  Diff/transmission oil is 
  > centrifugally thrown on the clutch disk.  Oil coated clutch disk 
  > grab when cold and slip when hot.  The newer machined clutch 
  > throughout bearing shafts have provisions got two input seals in 
  > tandem to hopefully alleviate the sort of problem you are 
  > experiencing.
  > Just drop the engine and transalxe, split the assembly at the bell 
  > housing, replace the clutch disk, input shaft bearing, clutch 
  > throughout bearing, and clutch input shaft seal.  Reassemble and 
  > reinstall.
  > Jim Davis.

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