How to do an engine compression and leak-down test!

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  • เผยแพร่เมื่อ 1 ธ.ค. 2024

ความคิดเห็น • 47

  • @YUM_DustDSM4G63
    @YUM_DustDSM4G63 ปีที่แล้ว +4

    Freaking love the continent not only for the excitement of this but you are so helpful to so many people you know literally would be hopeless without you. Thank you so much for everything you do today was quite a mission but I’m always happy to slip some time with you any chance I get. But this video was basically like my savior of my prayers, have finally been answered I’m working on a 91 Eagle talon for one of my Russian friends and we got terrible lifter noise or the valves got some major problems but it sounded just like in the video so now we’re going to use it as a cross reference for his car you are the best in the world dean💙💙💙💙

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว +1

      Glad to help where I can. Let us know how it goes and what you find out.

    • @YUM_DustDSM4G63
      @YUM_DustDSM4G63 ปีที่แล้ว +2

      @@SlippingTime after we get everything taken apart and full diagnostic test on everything I will happily let you know any results. because you are the whisper of DSM magic if we cant figure it out, I know you will have a pretty good idea and or familiar experience / reference point because you’re that legendary and straight up super awesome incredible and amazingly intelligent

  • @osoquik4447
    @osoquik4447 ปีที่แล้ว +1

    Can’t get enough of the DSM content. Bring me back to the glory days of the forums, I.e., DSMtalk, DSMtuners

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว

      How about going back as far as DSM Digest and the list server days? Did I just date myself? 😆

    • @osoquik4447
      @osoquik4447 ปีที่แล้ว +1

      @@SlippingTime 😆 That must have been before my time. I came to scene when Greddy just stop selling dsm car parts and body kits were a fading fad. The vfaq bulletin and RRE were to go sources.

  • @valadezjose47
    @valadezjose47 ปีที่แล้ว +1

    Found your videos not too long ago and as a fellow dsmer I've been seeing every single one now lol

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว

      Thanks for tuning in Da Bozz. I am very happy to hear you are enjoying all the videos. More to come in the future!

  • @KBzKustomsINC
    @KBzKustomsINC ปีที่แล้ว +1

    I personally love the over explaining. These are good refreshers! cant wait to see the car ready to hit the road again. I wanna see the farmer blast it down some dirt roads or heard some sheep with it haha

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว

      Haha. The next episode released today it goes for a drive!

    • @KBzKustomsINC
      @KBzKustomsINC ปีที่แล้ว +1

      @@SlippingTime I just watched! Rips good for a stock car. I miss mine a lil in that form. Curious how many boost leaks you find. I’m gunna guess the throttle body and injector seals at the least

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว

      @@KBzKustomsINC I can’t believe how quiet it was. I forgot how soft they were in stock form.

  • @ovidiojunior9892
    @ovidiojunior9892 ปีที่แล้ว +1

    One more class, two important tests, and I was surprised by the good condition of the engine, for the time it was stopped, whoever used it took very good care of it and used good gasoline and a good cooling fluid, otherwise it would have oxidation and carbon deposits that would affect your seals. Hugs

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว +1

      Yes, I was too impressed just how great it tested. I expected some ring rust to prevent sealing that well.

  • @diamanteracer
    @diamanteracer ปีที่แล้ว +2

    Love the content, please don't stop.

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว +1

      I am addicted - can’t stop. 😆

    • @diamanteracer
      @diamanteracer ปีที่แล้ว +2

      @@SlippingTime I am happy to know that. I feel like alot of people try to make DSM related videos and then stop all of sudden. I am not comparing videos. I just like as much DSM content as possible. Your channel is very detailed and entertaining which I appreciate.

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว +2

      @@diamanteracer thank you for the compliments. I will have other types of car content as I have before, but dsm’s don’t leave me. I am grateful for those of you that support and follow me and hope more join the party!

    • @YUM_DustDSM4G63
      @YUM_DustDSM4G63 ปีที่แล้ว +1

      @@diamanteracer do you have Instagram Sadly, none of us are on the TH-cam platform too much but there’s a ton of us over on Instagram I would be happy to follow you and introduce you to the community

    • @diamanteracer
      @diamanteracer ปีที่แล้ว

      @@YUM_DustDSM4G63 yes I do franco_s2k_lude_dsm

  • @chrissdsm
    @chrissdsm ปีที่แล้ว +2

    Thanks again man.
    👍

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว +2

      You’re welcome as always!

  • @HP_Diesel_YT
    @HP_Diesel_YT ปีที่แล้ว +1

    can't wait till I get 1K subs like you. great video!

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว +1

      You will get there, keep up the effort and it will happen.

  • @richardwilliams9815
    @richardwilliams9815 ปีที่แล้ว +1

    Amazing compression and leak down. Problem is with it sitting for so long I'd assume those valve seals are rock hard. Happened to my 98 gsx that sat for 13 years. But easy to replace without pulling the head.

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว +2

      True. Valve seals even in these cars not sitting became leaky and many have been replaced. I found out this engine was rebuilt shortly before it sat. Not sure about the head work though.

    • @richardwilliams9815
      @richardwilliams9815 ปีที่แล้ว +1

      @@SlippingTime once the t-belt is off I'd just pop the cams out. Use your leak down tool to keep all the valves shut. I have a cool tool that pops the retainers and has a magnet for the keepers. Oem springs are easy. Then swap the seals.

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว +1

      @@richardwilliams9815 great tip. I have done something similar when changing to 3g lifters.

    • @richardwilliams9815
      @richardwilliams9815 ปีที่แล้ว +1

      @@SlippingTime the tool I have was about $70. Has two sides. One for removing and one for installing. The keepers slide into it and you line up the retainer and wack it with a mallet and they all pop right back on. Kinda cool. Pain with aftermarket springs but very easy with oem.

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว +1

      @@richardwilliams9815 I am so old school, I still use the mits (miller) spring compressor I bought back in the day. 😀 You’re tool sound easier for sure.

  • @simonlange6726
    @simonlange6726 ปีที่แล้ว +1

    Good lesson! I''ve only ever heard of compression testing till today. Question: you mentioned watching for bubbles in the coolant to check for potential head gasket leaks. If the engine is a V6 or V8, could you then isolate specifically which head gasket is leaking if you get bubbles in the coolant? Reason I'm asking, I had a V6 engine with oil and coolant mixing, which the mechanic said that they could not determine which head gasket, one or both, was the issue. I made a decision to replace the engine based on the potential labor cost of replacing one head gasket and finding out, the other one was the issue.

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว

      Yes in a V engine if bubbles come from a leak down test in the coolant then it would be the side of the tester is in. With that said, it is possible the leak down test doesn’t show the head gasket failure if it only leaks at very high pressures to see air in the coolant system. Or the head gasket failed between the oil and coolant valleys, but around the combustion chamber it is in tact.

  • @CaptainTonus
    @CaptainTonus ปีที่แล้ว +1

    Were you holding the throttle open while cranking during the compression test? That's something that I've always done. Not sure if it really makes a difference, though. I recently did a compression and leakdown on my 4G63, which was built back in 2005ish and has seen quite a bit of abuse--I got amazing results. Less than 10% leakdown in every cylinder. It does still consume oil though, so I have to figure that out.

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว +1

      I must admit I don’t open the throttle when I crank for compression. It makes sense to me to do that though. Now I need to do a comparison on how much difference it makes. If the leak down is okay I wonder if your turbo is the source of using oil.

    • @CaptainTonus
      @CaptainTonus ปีที่แล้ว +1

      @@SlippingTime I assumed it was my turbo also, because it's super old, but I'm not seeing any evidence of oil on the turbine wheel or in the turbine housing. Also not seeing any oil on the intake side, and I do have a pretty large catchcan on the vehicle

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว +1

      @@CaptainTonus any smoke out of the tailpipe that you notice ever?

    • @CaptainTonus
      @CaptainTonus ปีที่แล้ว +1

      @@SlippingTime oh yes, it smokes a decent amount. Can't really tell exactly under what conditions, like decel or idle, but I do notice smoke and also smell oil occasionally

    • @SlippingTime
      @SlippingTime  ปีที่แล้ว +1

      @@CaptainTonus I am pretty sure is has to be either turbo, rings, valve components. Is the leak down higher one one than the rest? Are you running really thin oil by chance?

  • @tonyalcocer777
    @tonyalcocer777 ปีที่แล้ว +1

    Meow😂