56 322 Nail

Discussion in 'Classic Buicks' started by 56 Special, Jan 26, 2016.

  1. John Codman

    John Codman Platinum Level Contributor

    Not sure on that. If I had to guess, I'd say yes, but perhaps someone else will jump in here. Historically, if GM finds a design that it likes for something, that design spreads across the company. It would be unlikely that a mid-50s Buick would use a totally different oil pump/distributor drive design then a mid-50s Chevy.
     
  2. telriv

    telriv Founders Club Member

    Just about ANYTHING can be made to work as far as pre-lubing. Even a big screwdriver with slots cut into the end to slip over the oil pump driveshaft & the top rounded to fit into a drill of your choice.


    Tom T.
     
  3. 56 Special

    56 Special Member

    The SBC pre-lube tool worked great, in addition, with the visibility of the oil pump (w/valley cover off) top/pump shaft is was easy to reinstall distributor back to original orientation. I preluded with the rockers off - got good oil flowing. Put the rockers on and pre-lubed again and there was a generous amount of oil dripping too. Side note; the valley cover w/mesh enclosed. The mesh inside the valley cover is spot welded in, that basically means you need to remove the spot welds or find a way to clean the cover with it all intact. I sprayed/soaked and held the cover up to the sky in an attempt to clean this thing without cutting it open. What I eventually did was to bring a 5 gallon bucket of water to a boil over a fire pit and boiled it until there wasn't and more crud coming out of it and when air flowed through is freely. By the way it was so clean I felt I might eat my lunch off it before putting it back on.

    Mike
     
  4. 322bnh

    322bnh Well-Known Member

    56 Special likes this.
  5. 56 Special

    56 Special Member

    The 56 Special is back together and she runs extremely well - man I like to drive it. Buick .jpg
     
  6. John Codman

    John Codman Platinum Level Contributor

    As the original topic here is sludge, I thought that I would pass something along that an old-timer (probably younger then I am now) told me. If you start an engine and drive it less then 10 miles you have hurt it. It doesn't get warm enough to get rid of the sludge that forms when the engine is cold. If you drive it three times for five miles, you must make a forth trip of 25 miles to undo the damage - 10 miles for the last trip plus another 15 to offset the first three. Simply put, your trips should average 10 miles or more in a pre-pcv car or you will get sludge buildup. It makes sense to me. Probably not as true in today's 195-degree thermostat cars.
     
  7. bhambulldog

    bhambulldog 1955 76-RoadmasterRiviera

    Nice!!
    They're fun to drive !!
     
  8. 56 Special

    56 Special Member

    Just want to check in and say that the old 56 Special has been running great for a over a year now after doing the above work. The only thing that has developed is a oil leak coming drivers side rear of engine. I've checked the oil pan/valve cover and they are not leaking but can't see exactly where its coming from. Let me know if anyone has a idea. Thanks.
     
    bhambulldog likes this.
  9. bhambulldog

    bhambulldog 1955 76-RoadmasterRiviera

    Thanks for the update!!

    Probably the rear main seal is leaking.
    It can be fixed .
    Or, if it's a small leak , one can live with it.
     
    56 Special likes this.
  10. John Codman

    John Codman Platinum Level Contributor

    Is it leaking or just marking it's territory?
     
    56 Special likes this.
  11. 56 Special

    56 Special Member

    I'm getting a half dollar size drip after each drive. It drips drops from the transmission accumulator nut on diverside. I think I'll take a closer look tomorrow.
     
  12. 56 Special

    56 Special Member

    Half dollar size puddle. I do see that the blow by/valley vent tube is emitting oil vapor too, thinking that might be part of the source.
     
  13. 56 Special

    56 Special Member

    I must ask; do you have a secret to fixing the rear main seal?
     
  14. bhambulldog

    bhambulldog 1955 76-RoadmasterRiviera

    I do not
    A better mechanic than I replaced mine.
    ,
    But, there are some threads that tell the best procedure for replacing the seal.
    Try a search of rear main seal
     
    56 Special likes this.
  15. bhambulldog

    bhambulldog 1955 76-RoadmasterRiviera

    Mine puts out a white vapor sometimes. Sometimes not.
    It puts out less since I started using Shell Rotella 30w (for Diesel engines) instead of the 30w Vavoline ( for gasoline engines).
    I changed to Rotella for the zinc content. The reduction of crankcase vapor was a welcome side effect.
     
    56 Special likes this.
  16. 56 Special

    56 Special Member

    I use Amsoil (for old rigs w/zinc etc additives).
     
  17. 322bnh

    322bnh Well-Known Member

    Don't worry about the vapor until you have taken it on a 100+ mile trip to cook all the volatile components out of the crankcase.
    My method for rear seal leaks is detailed on my website: buickrestorer.com
    If you cannot find it I will post a specific link when I get back to a real computer instead of this phone. :)
     
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  18. 56 Special

    56 Special Member

    Thank you for the link and info. I will check it out soon and see if its something I will tackle (if needed most likely yes as I don't have other wrenching on my stuff)..
     
  19. telriv

    telriv Founders Club Member

    Try a pint of Dot3 brake fluid in the oil. Will help to swell the rope seal & sometimes takes care of it over the long term.


    Tom T.
     
    bhambulldog likes this.
  20. theluxuryideass

    theluxuryideass New Member

    i love this car.

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