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Technical Mallory YL Single Point Basket Case Help

Discussion in 'Traditional Hot Rods' started by AD_NAPCO, Jan 19, 2026.

  1. AD_NAPCO
    Joined: Mar 14, 2008
    Posts: 425

    AD_NAPCO
    Member

    Howdy all... I'm not new. I swear. I've just been away for a LONG time.

    I have searched and searched and searched but I'm not finding what I'm after so I'm gonna ask.

    I've got a basket case Mallory YL 501 AV distributor here and I wanna get it back together and see if I can get it set up on my Sun 504 machine.
    Does the fact that it's a single point distributor mean it was intended for marine use? I ask because I read something here that suggested that.

    Does anyone have exploded views of these distributors? Maintenance manual or end play specs? There are a couple small shims that are too thin for going between the drive gear and housing. I'm wondering where they are intended to be installed.

    Also... Is there a source for the degree keys?

    I appreciate any help! Please and thank you.
     
    saltracer219 likes this.
  2. saltracer219
    Joined: Sep 23, 2006
    Posts: 1,180

    saltracer219
    Member

    Looks like it fits a 330-455 Olds. There is one on EBAY that appears to be for a Marine application. If yours has the little round vent screens in the side it is a Marine application. Those will work fine in a Hot Rod application also. I have advance keys for those and Pertronix makes a breakerless conversion for them. I probably have a general exploded view in one of my old Mallory catalogs. I am in Camas not that far from you, let me know if I can help.
     
    AD_NAPCO and Fordors like this.
  3. AD_NAPCO
    Joined: Mar 14, 2008
    Posts: 425

    AD_NAPCO
    Member

    Hey thanks! It does indeed have the little round vent screens. I'm going to be in Vancouver tomorrow helping a buddy pull parts at All American. Shoot me a message. Maybe we can make something happen if you're gonna be around. I appreciate your response!!
     

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