How to overlay in-cylinder waveforms - and how peak compression CAN be a false TDC

Автокөліктер мен көлік құралдары

Thank you all for tuning in to Super Mario Diagnostics!
Today I'd like to share my exact steps to overlay in cylinder waveforms. Also, I'd also like to point out how a compression peak can be mistaken for true TDC.
I hope you all enjoy, like, share, comment and subscribe!
To attend the same class(Super Saturday) I did, register at:
paautotraining.com/attendee-r...
For a list of great quality training, visit: trainedbytechs.com/training-e...
Music source: • Quasars in the Distance
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Пікірлер: 97

  • @CubasAutomotive
    @CubasAutomotive4 жыл бұрын

    Exceptional! I definitely learned from this. I need to apply these tricks more to make them stick! It's amazing to see your growth as a technician, as a YTer, and teacher. I applaud you Mario! 😍🤗👏👏👍

  • @stevenwebb5233
    @stevenwebb5233 Жыл бұрын

    Thank you for all you do to help others. This is a great video showing us how to overlay. Thank you again

  • @paulpaquette1961
    @paulpaquette19614 жыл бұрын

    WOW, this is Awesome! This is very useful to know. A huge thanks to Brandon Steckler, and you Mario, very, very well explained and hands-on! Have an Awesome Safe week Sir!

  • @DylanRabier
    @DylanRabier4 жыл бұрын

    Awesome! Thanks for taking the time to share this with us. 👍

  • @franciscodiez5825
    @franciscodiez58254 жыл бұрын

    Another great video! Alot of great info/insight. Thanks for sharing and keep them coming.

  • @jeannettecalderon4389
    @jeannettecalderon43894 жыл бұрын

    The quality of this video 👍🏼

  • @billyyoder8171
    @billyyoder81714 жыл бұрын

    Thank you Mario. Good job. Have a blessed and safe week.

  • @jonathansandefur7672
    @jonathansandefur76724 жыл бұрын

    Great video. Watching you develop your skills evolve has been an inspiration. Keep the great content coming and thanks for all the time you invest in making them.

  • @randygould4109
    @randygould41094 жыл бұрын

    Great as video as always

  • @geraldhenke
    @geraldhenke4 жыл бұрын

    Thank you, this makes learning this much better, awesome video

  • @petercarvajal1231
    @petercarvajal12312 жыл бұрын

    Well Done! I needed to learn this. Thank you

  • @steveanderson4553
    @steveanderson45533 жыл бұрын

    Really good information ! Thank you Mario and Brandon 👍

  • @billmck12345
    @billmck123454 жыл бұрын

    wow! first time iv seen a false tdc pressure waveform.... thanks so much Mario!!

  • @mechanicmatt871
    @mechanicmatt8714 жыл бұрын

    Thanks Mario, You are really good at explaining things, thanks for sharing your knowledge,

  • @alexsalazar1356
    @alexsalazar13564 жыл бұрын

    Great video! Thanks for you help, we need more videos like this, recognize bad waveforms

  • @VoltageDropDiagnostics
    @VoltageDropDiagnostics4 жыл бұрын

    I caught bits and pieces of this on facebook! I need to get back and read more into it! Thanks for sharing Mario!

  • @PaulysAuto
    @PaulysAuto4 жыл бұрын

    Very useful information, thanks for helping us understand how to analyze these waveforms Mario. I definitely would have been in the rabbit hole on the exhaust valve timing for sure! Love you sharing this in depth analysis and I hope you can keep putting out more of these in the future!

  • @andrewk778
    @andrewk7784 жыл бұрын

    A great video. This is why I watch videos. I added this to my watch later file. You are an exceptional talent. Thank you for sharing.

  • @marklennon4988
    @marklennon49882 жыл бұрын

    Thanks Mario! Great stuff.

  • @jamessvetlovics4948
    @jamessvetlovics49484 жыл бұрын

    That is clutch info about TDC on low compression cylinders, great stuff thx for sharing

  • @BrianMann216
    @BrianMann2164 жыл бұрын

    Great job explaining over lays Mario. Keep up the great work and sharing. I would love to hear more on the peak compression not being @ tdc. I will be attending Brandon's full day class at Vision 2020.

  • @randygould4109
    @randygould41094 жыл бұрын

    so i have used this tool a lot today . works great on cam and crank correlation . another tool in the arsenal. thanks for heads up on this tool

  • @shaunsautorepairs5410
    @shaunsautorepairs54104 жыл бұрын

    very interesting...havent seen that before...thanks for the clear explanation.

  • @High_Tech_Mountain
    @High_Tech_Mountain4 жыл бұрын

    Wow! Thank you for sharing Mario. I try to keep up with the case studies but there’s tons of them. GREAT INFORMATION in the video! I thought it was an exhaust valve not opening form the moment I saw it (which I was wrong,lol) again thanks for sharing brother!

  • @IAMNOSLEEP
    @IAMNOSLEEP4 жыл бұрын

    Great video. Thanks for sharing. Cheers.

  • @edwinbrewer1789
    @edwinbrewer17894 жыл бұрын

    Great timing on this video. I just confirmed valve timing was off using in cylinder on a 4.7 Chrysler on the LH head. There was no cam sensor on that side. So no code & could not check cam crank sync. Was able to use this to overlay Cylinders #1 from LH side & #8 from RH side. Thanks a bunch!

  • @JoelAutomotiveInaction
    @JoelAutomotiveInaction4 жыл бұрын

    Great demonstration , I have a video for toyota corrola where I have shown that with relative compression that was low comprecion acrros the board looks relatively equal but all 4 cylinder low compression, and I did incylinder too , what demonstrates the ig supposedly was out time but was not what was in reality was the compression was built up the max prior the piston travel still was going on to tdc . Thanks for sharing

  • @planet1250
    @planet12504 жыл бұрын

    Thank you Mario !

  • @naushadali95
    @naushadali954 жыл бұрын

    Super video.thanks

  • @arthurfricchione8119
    @arthurfricchione81194 жыл бұрын

    Mario thanks for sharing. Will definitely down load that program or app whatever. Thanks again Artie ❤️

  • @twinnumbr1168
    @twinnumbr11684 жыл бұрын

    Great information. 😎

  • @diymisfit_Mechanic_UDX404
    @diymisfit_Mechanic_UDX4044 жыл бұрын

    Good stuff right there. 👍

  • @luisfranciscocopca3641
    @luisfranciscocopca36412 жыл бұрын

    Excelente video y gracias por la traducción

  • @nelsonguido730
    @nelsonguido7308 ай бұрын

    ¡Gracias! Mario yo también crei que habia problemas con el lado de escape muy bueno 👍

  • @frankarauz5851
    @frankarauz58513 жыл бұрын

    saludos amigo, realmente admirable, eres gran tecnico...

  • @andysgarage6612
    @andysgarage66123 жыл бұрын

    Thank you, thank you 😊

  • @shamessun
    @shamessun4 жыл бұрын

    thank you and thank you brandon

  • @brandonsteckler3417
    @brandonsteckler34174 жыл бұрын

    Thanks Mario❤️

  • @SuperMarioDiagnostics

    @SuperMarioDiagnostics

    4 жыл бұрын

    No, thank you man!

  • @steveanderson4553
    @steveanderson45533 жыл бұрын

    Good Stuff !!

  • @jameswasher3938
    @jameswasher39384 жыл бұрын

    Thanks Mario. Nice video. I've just used photo editing software to allow me to stitch and move 'layers' for this kind of overlay work.

  • @richardcranium5839
    @richardcranium58394 жыл бұрын

    that was super mario im saving it to watch again

  • @1977jelliott
    @1977jelliott4 жыл бұрын

    Great vid mate, peak compression should not be used for measuring TDC, it is variable and dependent on many factors including engine condition. Just as an example because it stands out more in most cases on diesels, peak compression in diesel engines can occur well after TDC occurs and is usually set to occur at a favourable connecting rod angle to transfer the peak compression force. Using a "fixed" reference point for TDC such as a crank or cam angle signal is always advisable. I tend not to use ignition or injectors on petrol (gasoline) engines as these signals can be variable too.

  • @raysolis6553
    @raysolis65532 жыл бұрын

    Nice!

  • @caliautotech21
    @caliautotech214 жыл бұрын

    Def gonna use that! Thanks for the video.. was the case study for Andrew and Brandon posted anywhere ?

  • @SuperMarioDiagnostics

    @SuperMarioDiagnostics

    4 жыл бұрын

    Yes I'll tag you

  • @GoodGuysSmogSanBernardino
    @GoodGuysSmogSanBernardino9 ай бұрын

    I wonder if you have any experience about pressure waveform overlays on snap on verus edge? thanks George.

  • @david619dc
    @david619dc4 жыл бұрын

    Way easier that reference waveform. Thanks

  • @alexlongpre4527
    @alexlongpre45273 жыл бұрын

    Thanks a ton for this Mario! I'm currently building my first transducer to experiment with it, so all of what you talked about in this vid will probably save me a ton of headache. It compliments well what I've learned in Brandon Steckler's and John Morton's videos. Now I have a question. Even on y known good waveform, you don't seem to have a drop to vacuum when the intake valve opens... Was this a cranking compression waveform by any chance? Thanks and cheers from Canada.

  • @SuperMarioDiagnostics

    @SuperMarioDiagnostics

    3 жыл бұрын

    That's correct, these are cranking waveforms. Rpm isn't fast enough to produce a pronounced vacuum between the throttle blade and the intake valves

  • @alexlongpre4527

    @alexlongpre4527

    3 жыл бұрын

    @@SuperMarioDiagnostics Great! Thanks for the reply and for confirming that I'm getting the hang of this. Even though I don't have a transducer yet, I try to watch as many videos as often as possible to still train my brain into interpreting the squiddly lines and filter the right info out of them. Thanks again for everything you do.

  • @SuperMarioDiagnostics

    @SuperMarioDiagnostics

    3 жыл бұрын

    That's the best way, and what i did before i got my own equipment. Check out Dave decourcey in KZread, he has a great video you definitely will love

  • @alexlongpre4527

    @alexlongpre4527

    3 жыл бұрын

    @@SuperMarioDiagnostics Thanks for the pointer, I'll definitely have a look at lunch brake. Cheers me lad.

  • @DmitriyL_Arithmechanics
    @DmitriyL_Arithmechanics4 жыл бұрын

    Great video, Mario! The proverbial leaning towers that skew the whole waveform... Do you endorse always including the ignition sync while capturing pressure waveforms? Now a fun question: why the expansion void for a bad cylinder is not deeper than the one for the "known OK" cylinder?

  • @SuperMarioDiagnostics

    @SuperMarioDiagnostics

    4 жыл бұрын

    I don't always do it, since every car is different in their spark timing strategy. But it doesn't hurt either. My best guess would be that there isn't enough sealing capabilities to cause a vacuum in the expansion void. It's allowing air to enter the cylinder too fast for the vacuum to happen. Thanks for watching buddy

  • @DmitriyL_Arithmechanics

    @DmitriyL_Arithmechanics

    4 жыл бұрын

    @@SuperMarioDiagnostics Good explanation. This example is so extreme it breaks all kinds of rules of thumb.

  • @PauloRogerioHantekNaVeia
    @PauloRogerioHantekNaVeia4 жыл бұрын

    muito bom,foi util sim pra mim que estou usando o picoscope conprei a poucos dias, estou usando o mpx 5700 mas ele corta o pico porque só mede 7bar. teria algum pra indicar? e ensinar como fazer uma sonda personalizada pra ele?

  • @SuperMarioDiagnostics

    @SuperMarioDiagnostics

    4 жыл бұрын

    Pelo que posso ver nas especificações técnicas desse sensor, o problema é que ele tem um alcance de apenas 100psi. o próprio sensor está causando o corte e interromper uma sonda personalizada não solucionará o problema, infelizmente. você precisará de um sensor capaz de ler a pressão do cilindro, que pode chegar a 250 psi em alguns casos Eu espero que isso ajude.

  • @PauloRogerioHantekNaVeia

    @PauloRogerioHantekNaVeia

    4 жыл бұрын

    @@SuperMarioDiagnostics , poderia indicar um ? obrigado pelo retorno 🤝🤝

  • @SuperMarioDiagnostics

    @SuperMarioDiagnostics

    4 жыл бұрын

    o estilo mais antigo FLUKE PV350. ele precisa ter uma pequena caixa azul na placa de circuito para que funcione bem com o escopo. os novos não funcionam bem com escopos. você pode encontrá-los usados ​​no eBay. de nada amigo

  • @JOHNPHUFNAGEL
    @JOHNPHUFNAGEL4 жыл бұрын

    Great video Mario!! I am a novice scope user and always trying to learn something new, I might have missed your explanation but what was wrong with the low compression cylinder? If you cant line up peak compression how would you determine if valve timing is off?

  • @SuperMarioDiagnostics

    @SuperMarioDiagnostics

    4 жыл бұрын

    This cylinder had a scored wall. Think about it this way, if you find that on one dohc engine cylinder it appears to have a timing issue on both the intake and exhaust cam, equally, it's likely impossible. So you match them up according to valve activity instead of tdc

  • @carguy1312
    @carguy13127 ай бұрын

    Fyi - need to either snip, or save files as "png" image from pico when using the overlay program.

  • @phillipzan2005
    @phillipzan20054 жыл бұрын

    Mind blown....

  • @simonhawkins2597
    @simonhawkins25974 жыл бұрын

    Hi Mario could you please post the link for the video on reference waveforms by trained by techs?? Great video as usual👍👍👍

  • @SuperMarioDiagnostics

    @SuperMarioDiagnostics

    4 жыл бұрын

    kzread.info/dash/bejne/Y6SOrciMabHcerA.html

  • @simonhawkins2597

    @simonhawkins2597

    4 жыл бұрын

    Super Mario Diagnostics cheers Mario thank you for sharing 👍👍👌

  • @k20chad
    @k20chad4 жыл бұрын

    That is awesome! Thank you for sharing this. Would you be able to post the PS files so I can play with them?

  • @SuperMarioDiagnostics

    @SuperMarioDiagnostics

    4 жыл бұрын

    I'll let you know when i post them, might be tomorrow

  • @k20chad

    @k20chad

    4 жыл бұрын

    @@SuperMarioDiagnostics Awesome! I appreciate it very much and thank you :)

  • @SuperMarioDiagnostics

    @SuperMarioDiagnostics

    4 жыл бұрын

    here ya go: drive.google.com/open?id=18nGh19T3CLAs5Jj1Jabx9qFJtzoRUTFH

  • @k20chad

    @k20chad

    4 жыл бұрын

    Super Mario Diagnostics Thank you sir :)

  • @chrisduran8692
    @chrisduran86922 жыл бұрын

    Is the overlay app compatible with Zeus by chance? I was having difficulty installing it today but im sure it being snap on there is some small detail im missing that doesnt allow for download and install?

  • @SuperMarioDiagnostics

    @SuperMarioDiagnostics

    2 жыл бұрын

    I'm not sure, i don't use a Zeus

  • @chrisduran8692

    @chrisduran8692

    2 жыл бұрын

    @@SuperMarioDiagnostics definitely further investigation required on my part and I appreciate the response! Love the content man you have great work!

  • @SuperMarioDiagnostics

    @SuperMarioDiagnostics

    2 жыл бұрын

    Thanks! I hear is a Windows 10 platform so it should not be a problem

  • @HayabusaRydr
    @HayabusaRydr4 жыл бұрын

    Best to use a sync to line up waveforms perfectly

  • @SuperMarioDiagnostics

    @SuperMarioDiagnostics

    4 жыл бұрын

    What sync would you use?

  • @ismarmeskovic
    @ismarmeskovic4 жыл бұрын

    👍👍👍

  • @markjohnson8162
    @markjohnson816211 ай бұрын

    How do you upload your pictures into the pressure overlay ?

  • @SuperMarioDiagnostics

    @SuperMarioDiagnostics

    11 ай бұрын

    Editing software

  • @markjohnson8162

    @markjohnson8162

    11 ай бұрын

    @@SuperMarioDiagnostics I don’t understand what your saying brother ?

  • @markjohnson8162

    @markjohnson8162

    11 ай бұрын

    @@SuperMarioDiagnostics do you mean download editing software ?

  • @davesterl
    @davesterl4 жыл бұрын

    Super vid super mario

  • @venturafredis
    @venturafredis4 жыл бұрын

    hola mario quetal aga porfa en español para los que no hablamos o entendemos el idioma ingles muchas gracias super mario

  • @JoelAutomotiveInaction

    @JoelAutomotiveInaction

    4 жыл бұрын

    Yo hago vídeos en los 2 idiomas pero créeme es bastante trabajo solo hacerlo en una lengua y en 2 mucho más

  • @CubasAutomotive

    @CubasAutomotive

    4 жыл бұрын

    @@JoelAutomotiveInaction 100%! 😥😥

  • @SuperMarioDiagnostics

    @SuperMarioDiagnostics

    4 жыл бұрын

    En serio, no es solamente creando vídeos en español, pero también respondiendo cada pregunta. Uno no se imagina el tiempo que se toma para hacer todo eso. Por el momento, puedo responder comentarios, pero no se si voy a empezar a hacer vídeos en español

  • @jhauna1
    @jhauna14 жыл бұрын

    First here😁

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