Power Timing your Buick V8

Discussion in 'Buick FAQ' started by LARRY70GS, Jan 2, 2005.

  1. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    Some guys are still confused though.:D:D
     
  2. BIG FRANK JOHNSON

    BIG FRANK JOHNSON Active Member

    Larry is this weight issue also for street and highway driven cars? Frank
     
  3. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    Weight issue?
     
  4. gusszgs

    gusszgs Well-Known Member

    Hi Larry, I have a quick question re: total timing advance for stock GM distributors.
    I'm working on an L89 396/375 BBC (I know lol) but this is a good friend of mine.

    I'm trying to iron out some general issues with the car as I believe a few, lets say "unqualified" individuals have been monkey around with it.

    With the timing issue, it appears to be getting far too much total advance (52.2*) all in at 2500 rpm
    It's a stock original GM date coded points distributor. I set the initial to 10* for now, but believe the factory spec calls for 6*

    Is there a stop for the centrifugal advance weights in these factory distributors? Not too familiar with the "old" points set up any more. That much advance set alarm bells off in my head. In my GS I run an MSD billet and have it locked in at 34* tops. Maybe it's missing a stop bushing or something?? TIA

    Jim
     
  5. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    Jim,
    It certainly could be missing a bushing. Total advance is controlled by the length of a slot under the weight plate. I have a good picture of it in post #3 on Page 1. The Mr Gasket kits have a nice brass one. A bit difficult to install with the distributor installed, but not impossible. Use a dab of epoxy for insurance.

    https://www.summitracing.com/parts/mrg-928g/applications
     
  6. gusszgs

    gusszgs Well-Known Member

    Thanks Larry appreciate it
     

Share This Page