Buick 340-4 oil dipstick

Discussion in 'Small Block Tech' started by Kai Beyer, Sep 10, 2019.

  1. Kai Beyer

    Kai Beyer 67 Le Sabre

    Hey everybody out there...
    My actually problem is that the dipstick (engine oil) leaks.
    The tube doesn't fit perfect in the engine so that it leaks...
    I asked my dealer who is in contact with several junkyard dealer in the us. One guy found an original dipstick and told ma dealer that there is no tube. It is only one part...?
    Can anyone help me if this info is correct? Otherwise i shouldn't oder that piece.

    Thanks a lot from germany
     
  2. redsixty9

    redsixty9 Platinum Level Contributor

    I can check when I get home this evening and post a picture for you.
     
  3. Kai Beyer

    Kai Beyer 67 Le Sabre

    Hey.
    Thanks for your Support.
    I am not happy with such a Great car leaking oil
    Best, Kai
     
  4. Jim Blackwood

    Jim Blackwood Well-Known Member

    He is correct, there is no dipstick tube, and without one you will never get the dipstick to seal very well. But you can fix that. Find a dipstick tube that will fit in the block and use a cable type dipstick. Cut your new tube to match the dipstick with a fresh oil change and full filter.

    Jim
     
  5. Kai Beyer

    Kai Beyer 67 Le Sabre

    Hey Jim. My problem is; i have a dipstick WITH a tube and it dont seal! The oil is blowing at the exhaust manifold etc...
    Ok, the tube is in a terrible condition...not round and without a o-ring.
    Maybe i find a "new" dipstick tube, can you tell me how i can fix and seal it in the block?
    I would be very glad about a solution to fix that problem. The feeling, to drive on the highway and to know that oil drips on the exhaust manifold, is a little bit scary...

    thanks a lot
    Kai
     
  6. telriv

    telriv Well-Known Member

    Engine oil on the exhaust is not usually as much of a fire hazard as ATF, BUT it does make a smokey smelly mess.
     
  7. redsixty9

    redsixty9 Platinum Level Contributor

    Sorry got home late last night. It slipped my mind. I'll take a pic. of the dipstick too. If I remember correctly the stock dipstick was loose fitting. There was a slot in the dipstick you could put a screwdriver in and expand the tabs to make it fit snug.
     
  8. Jim Blackwood

    Jim Blackwood Well-Known Member

    IIRC the hole is 5/16". It's not hard to find a tube that fits tightly in the hole. I found a modern cable dipstick with an o-ring seal and a belled mouth on the tube that fit very well. It was a bit long but I just bent it out of the way.

    Jim
     
  9. redsixty9

    redsixty9 Platinum Level Contributor

    This my 340 dipstick . No tube. It measures 21" overall. 15" to the stop. 3261.jpg 3259.jpg 3256.jpg
     
  10. Kai Beyer

    Kai Beyer 67 Le Sabre

    Thank you very much!!!!
    Thats what my dealer told me. No Tube.
    I ordered one from a junkyard in the US.
    Again, thx!

    All the best from hamburg, Germany.
    Kai
     
  11. redsixty9

    redsixty9 Platinum Level Contributor

    Glad I could help. Happy Oktoberfest! I'll be in Slovenia,Italy,Austria,Croatia and Germany in May and June. Love those big Le Sabres and Wildcats.:cool:
     
  12. Kai Beyer

    Kai Beyer 67 Le Sabre

    Sounds great! Contact me when you are in hamburg. maybe we can drink a cold beer and you can have a look at my car.
     
  13. Jim Blackwood

    Jim Blackwood Well-Known Member

    Anything will work if it shows "full" right after your oil change. Even a stick whittled to fit.

    Jim
     
  14. redsixty9

    redsixty9 Platinum Level Contributor

    Wow! now that's old school. Just put 5qts in the motor and mark the stick or count the knots.:) Lol
     
  15. Kai Beyer

    Kai Beyer 67 Le Sabre

    Hey Guys.
    I just found this: "The 340 did not have one unless it was a California car with an AIR pump."
    What means "air pump"?
    thx
     
  16. redsixty9

    redsixty9 Platinum Level Contributor

    It's a smog pump. It's made to burn fuel left in the exhaust for cleaner air in California cars.
     
  17. Kai Beyer

    Kai Beyer 67 Le Sabre

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