Announcement

Collapse
No announcement yet.

Want to know the condition of your engine? Do a leak down test.

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
    #1

    Want to know the condition of your engine? Do a leak down test.

    I've done leak down tests on my quads for the longest time, I will probably be doing them in the following weeks on my cars. In my opinion compression tests tell only a very general picture of the condition of the engine, while a leak down test can usually pin point problems without having to disassemble the engine or take it off the road, not to mention they will tell you exactly how good a rebuild/fixing something went after installation.

    Leak down test your engine to find its condition! | RTS - Your Total BMW Enthusiast
    http://www.rtsauto.com/?p=210
    No it is not the same as a compression test. A compression test is a gauge that screws into the spark plug hole and reads how much pressure your engine can create and hold by cranking (usually by the starter). Now a Leak down tester also screws into the spark plug hole, however it has its own pressure source (usually from


    Enjoy!
    Your resource to do-it-yourself and interesting bmw and e30 stuff: www.rtsauto.com

    Your resource to tools and tips: www.rtstools.com
    Tags: None
    #2
    Yup.

    Comment

      #3
      Seems like a good idea, but I wouldn't know what I was listening for
      Tbolt Division

      All I'm saying dude is that bird law in this country...it's not governed by reason.

      Comment

        #4
        Whats a leak down test? All this new fangled testing is to much.
        Originally posted by Beej '86 325es
        every time an M-tech 1 spoiler is destroyed, a baby seal dies.
        Originally posted by Jparkr
        The last thing we need are more of the retards on here thinking they are engineers too.
        87 325:83 jetta coupe:99 volvo c70:99 volvo s70

        Comment

          #5
          can autozone do this for me?

          Comment

            #6
            What is this "leakdown" test you speak of? It seems highly irregular.

            I will stick to tasting my used motor oil and smelling my exhaust to test the health of my engine thank you very much!

            '89 Alpine S52 with goodies

            Comment

              #7
              this doesn't work at all. If you really want to diagnose you engine, you neet to take the valve cover off, and the maf of then start it and listen for the minor vacume leaks.
              DUH!
              Yours truly,
              Rich
              sigpic
              Originally posted by Rigmaster
              you kids get off my lawn.....

              Comment

                #8
                A leakdown test is a pretty good way to determine if you have ring problems or valve problems. For my Honda race motors, anything more than 2% leakdown meant the head needed to come off and be rebuilt. That was a cold leakdown test.

                For the chevy Ls1 race motors, I'd let it go to 5-7% before tearing it apart.

                It's just like a compression test except you are using a constant source of air when the piston is at TDC.
                :loco:

                Comment

                  #9
                  this post sounds ALMOST like spam. just saying.
                  http://instagram.com/dslovn.drives

                  Comment

                    #10
                    It is, because the original poster wants you to go to his website, rtsauto.com
                    -OVULATOR (as named by jflip2002)

                    Past Cars: Schwarz 1990 325i-2 (crashed), Calypsorot 1991 325i-2 Sport (rear ended)
                    Now: Blake-stitched mediocrity :(

                    Comment

                    Previous template Next
                    Working...
                    X