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Hot Rods 303 Olds clutch problem

Discussion in 'The Hokey Ass Message Board' started by Lockjaw, Feb 21, 2021.

  1. Lockjaw
    Joined: Sep 1, 2003
    Posts: 172


    I have a 303 motor ,aluminum flywheel and Muncie 4speed. Cutch was for a cad lasalle trans .the clutch is large Ford ( early Ford style) I would like to use a hydraulic throw out bearing but the one that fits the Muncie isn’t big enough dia. To work! Suggestions other than re-drilling flywheel would be welcome. E985F8FE-2647-4199-ABF2-7E1BD8B21051.jpeg 08DBA714-14FD-40CB-A0DE-5AF2DF417E5A.jpeg DFD60BE4-48E9-4AFF-8D62-7CC75D7481D2.jpeg 62E0F0D1-F5CB-4FE5-BD86-6174B864DDE8.jpeg
  2. 19Eddy30
    Joined: Mar 27, 2011
    Posts: 1,782

    from VA

    Make a ring ( washer ) 3/8 thick may be thicker (1/4) to go from throw out bearing size to Pressure plate finger / lever,.. sometimes you have to think outside the box & experiment!!
  3. Or redrill the flywheel and use a GM pressure plate.
    Nailhead Jason and ottoman like this.
  4. Lockjaw
    Joined: Sep 1, 2003
    Posts: 172


    it's aluminum and not re-drillable.GM pressure plate different bolt pattern so solution I assume is going to be in the throw out bearing. On the washer it's a wear area so I don't think it would survive. Hate to get a new flywheel but I might have to

  5. ottoman
    Joined: May 4, 2008
    Posts: 338

    from Wisconsin

    Why is it not re drillable? Is it too thin where the chev pressure plate holes need to be? I have redrilled aluminum flywheels but never a 303... picture of the engine side of the flywheel?
    Budget36 likes this.
  6. Bert Kollar
    Joined: Jan 10, 2007
    Posts: 1,159

    Bert Kollar

    A hardened washer should work
  7. Moriarity
    Joined: Apr 11, 2001
    Posts: 26,301

    Staff Member

    Maybe it would be easier to get a clutch fork and an early ford throwout bearing. If you must have a hydraulic clutch you could just put a slave cylinder on it. This setup would be far more serviceable in the event of future hyd failures as you would not need to remove the trans to repair it
    Tim, triumph 1, 19Eddy30 and 3 others like this.
  8. RichFox
    Joined: Dec 3, 2006
    Posts: 10,020

    Member Emeritus

    You could look for a hydraulic throw out bearing that is large enough to fit the Long type fingers, Then see about adapting it to the setup you have. When I had the same deal without the hydraulic deal I had to make a brass bushing and press it into the bearing to make it fit the collar shaft.
    Pist-n-Broke and Tim like this.
  9. I won’t use another hydraulic throw out like those. I’ve had Nothing but problems with that style. I’d do like @Moriarity said and use a early for fork and throw out bearing hooked up to a slave cylinder. When the hydraulics need work for the clutch, you don’t have to mess with pulling the trans or motor out.
    37slantback and Moriarity like this.
  10. 4ty
    Joined: Jan 1, 2009
    Posts: 269


    Above is the way to go. I had a 32 5W I put a 55 Olds engine in, 11" ford pressure plate with a 10 1/2" disc mated to a 39 trans and used a hyd slave cyl. No problems. P/Plate bolted right up to the Olds std shift flywheel. All info obtained from the "little" books back in 1961.
    Paul in CT
  11. Whatcha building, Jaimie?
  12. Budget36
    Joined: Nov 29, 2014
    Posts: 10,396


    I was thinking the same thing.
  13. speedshifter
    Joined: Mar 3, 2008
    Posts: 312


    Liston to Moriarity & Nailhead Jason. Outside hyd. cyl is more trouble free, simple to repair or replace. Greg
    Nailhead Jason and Moriarity like this.
  14. Budget36
    Joined: Nov 29, 2014
    Posts: 10,396


    My reply was why the fly wheel could not be redrilled.
    Do you have insight on that ? The PP looks to sit way outside on the edges, so maybe no meat there?
    Anyways, that is what I was wondering:)
  15. Lockjaw
    Joined: Sep 1, 2003
    Posts: 172


    IMG_3459.JPG IMG_3463.JPG IMG_3475.JPG Thanks for all the replies. This car is the last to use up some of what is still sitting around that I didn’t have the heart to sell off. Car is a fiberglass cobra body Ford dropped axle 471 blown 303 olds Muncie 4 speed and quick change rear. Only problem so far has been the clutch. Motor has a really nice aluminum flywheel and I sold off the stock flywheel . Using a slave cylinder is going to make the most sense but take up some room. Thanks for input now on the hunt for a flywheel.
    Tim and cactus1 like this.
  16. Lockjaw
    Joined: Sep 1, 2003
    Posts: 172


    Here is a picture of back side of flywheel. Should have shown this in original pictures View attachment 4986870 View attachment 4986870
    Nailhead Jason, Tim and Budget36 like this.
  17. I've heard a picture is worth a thousand words.
  18. Compact bracket and a 60's GM truck slave won't take up much room fwiw:
    clutch slave.jpg

  19. 2OLD2FAST
    Joined: Feb 3, 2010
    Posts: 4,258

    from illinois

    You might consider one of the many clutch cables available ..
    Tim likes this.
  20. ekimneirbo
    Joined: Apr 29, 2017
    Posts: 3,287


    Don't know if you ever got the answer you need, but I saw this in an old (1971) book I had.

    Clutch Types 1.jpg
    Clutch Types 2.jpg
    Clutch Types 3.jpg
    Tim likes this.
  21. Tim
    Joined: Mar 2, 2001
    Posts: 14,717

    from KCMO

    Whoa that’s gonna be nuts!
  22. Any updates on this? I see that you have a clutch/flywheel in the classifieds....:rolleyes:

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