BMW Airhead Compression and Leakdown Test Procedure

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  • Опубліковано 29 гру 2024

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  • @sidneybolt1099
    @sidneybolt1099 Рік тому +1

    Brilliant clear vid. Thanks from the UK

  • @erichaleman755
    @erichaleman755 4 роки тому +2

    Thank you for the videos. Can you do a video on how to sync the carbs by ear? So no carb sync or other tools please. Cheers.

    • @TheBMWGuy
      @TheBMWGuy  4 роки тому

      Yes sir! I’ll be doin that after my carbs get rebuilt

  • @fattyman9133
    @fattyman9133 3 роки тому +1

    I like the new shiny headers on the not so new bike! Gotta start somewhere.

  • @NishadAbdulkhader
    @NishadAbdulkhader 4 роки тому +1

    Buddy please make BMW G310GS videos like air filter change, oil filter change, decoding the error codes using OBD reader , engine tuning etc

  • @TobiasStarklint
    @TobiasStarklint 3 роки тому +2

    Would love to see a video on setting the magneto and ignition timing on a 1955-1969 Boxer. Have had some problems with my R69 when it is warm and I do a gas-stop. Then it won't start again - it's probably a worn coil. And I'm looking through youtube and the rest of the web for a A-Z video on replacing the coil and setting the timing afterwards :)
    Just discovered your channel. Great stuff. Will definitely recommend it to all my Beemer friends.
    Greeting from Denmark.

    • @TheBMWGuy
      @TheBMWGuy  3 роки тому

      wow from Denmark! thank you very much!

  • @stevekovacs6250
    @stevekovacs6250 3 роки тому

    I appreciate all your informational videos. Keep them coming!! Thank you!

  • @jackkelley9657
    @jackkelley9657 4 роки тому

    Great video, super informative!

  • @sidneybolt1099
    @sidneybolt1099 Рік тому

    So, worth mentioning would be the compressor pressure you are pumping in please. Also, if you were doing say a leak down test on a two stroke - after I have done one on my R69 - I am guessing that the shop pressure should only be 10psi yes?

  • @yx595
    @yx595 2 місяці тому

    Hello, thank you for the grat viedos. Help me a lot. Could you please tell me how much is an accaptable cylinder end compression for an R51/3 airhead? MIne is around 72 psi , which I think is very little. Lots of air coming out from the crank pipe below, as well.

  • @vespasandengines
    @vespasandengines 2 роки тому

    Hi! Thanks for the video! But wanted to know what’s the outlet pressure into the engine?

  • @sidneybolt1099
    @sidneybolt1099 Рік тому

    Enjoyed this vid - really informative. So explain to me please. Compression test had large variance between cylinders which is contrary to what was shown on the leak down test. So why does the compression test contradict the leak down test?

    • @TheBMWGuy
      @TheBMWGuy  Рік тому

      they are 2 totally different tests.

    • @sidneybolt1099
      @sidneybolt1099 Рік тому

      Yes totally understand that but please explain why you would do a compression test Vs a lead down test. What discriminates between using one against the other.

  • @honzasgarage5125
    @honzasgarage5125 Рік тому

    Thanks for the video. Now i know i have a intake valve leak

  • @lmo1131
    @lmo1131 Рік тому

    You did not mention opening the throttle butterflies (or remove the carbs outright). Why?

  • @scottwittrick3362
    @scottwittrick3362 4 роки тому

    Thanks for all the videos relating to R50/2s. I am currently working on the exact model left to me by my uncle. With 75,000 miles on the clock im concerned about the oil slingers, it looks like a big job to clean them. Thoughts on an slinger cleaning video? Thanks!

    • @TheBMWGuy
      @TheBMWGuy  4 роки тому +1

      Yes it’s a big job, I was going to make a video but am am not very good at editing and it would take a couple days. In the future I will plan to make a oil slinger cleaning video.

  • @davidschmitz7404
    @davidschmitz7404 4 роки тому

    With the compression in the right cylinder at 170 and left cylinder at 140 with that make a difference with the motor's over all performance?

    • @TheBMWGuy
      @TheBMWGuy  4 роки тому

      yes, but it hasn't ran in 30 years! i am going to check it again after i run it a little bit. could have some oil in the combustion chamber taking up volume adding to the compression.

  • @mikemcelvain6897
    @mikemcelvain6897 4 роки тому +1

    Air filter

  • @johneastman1905
    @johneastman1905 Рік тому

    When We see you doing the compression test by Hitting DOWN ON on the starter pedal,
    You are promoting a BAD PRACTICE … Please lower the pedal, first engage the gears, then.