Pressure Analysis for the Internal Combustion Engine

[@jonjon-nc5br]

The KING of automotive diagnostics

[@SGTECH-di9df]

Man this guy is efficient with the delivery of information. One of the only instructors I can't 2x the speed of the video cause I can barely keep up at normal speed. Excellent information and a must watch for anyone doing this type of testing. This is 100% a pause and take notes and rewatch several times video, there is so much information crammed into a lesson under an hour. It's a little alarming to hear him say this was "quick overview" of this testing 😂.

[@PineHollowAutoDiagnostics]

This will be amazing. Thank you for the lecture, professor Bernie 😀👍

[@cardiaglexia995]

Wir danken bernie für seine zeit und die einblicke in sein wissen, welches er uns schenkte.gott segne bernie.

[@johnmwangi6291]

Watching for the 50th time 🍿

[@darrenogorman121]

Me too🤘🏻

[@DuaneDonaldson]

Finally getting around to annotating the few very long videos here Bernie as I have watched 100% of your channel, thank you very much for all your training through the years, cheers

[@arminprnjavorac2084]

The best explanation, for free, I love it!

[@arthurfricchione8119]

Bernie I’ve just taken your course last week with yourself and Jerry T. I’ve also taken Brandon S. course. Both of you are superb. I’ve also joined your members club for the year. I’m an older diyer retired navy aircraft mechanic and I’m teaching myself everything I can about today’s cars and engines. Thank you so much for sharing your superb knowledge and looking forward to your next training webinar. Your videos are so in-depth I watch them over and over. Also been purchasing all required tools and test equipment. Expensive but a mechanic loves his tools thank you Artie😊😊😊

[@gfbemc0256]

What is the “members club” & where can I find more information about it ?

[@orville58]

The information in this video is so much more than what the title indicates Bernie is an absolute genius,not only that he has the rare ability to communicate on all levels of I.Q thank you is not enough.

[@keithholmes6969]

You are an asset to the automotive community, thank you. KEITH El Cajon Ca.

[@mikeabasolo6872]

Bernie, this class never gets old. Always a great refresher

[@johnmwangi6291]

that's alot to digest...I have to watch it again and again and again... thanks sir.

[@Bias_Prineus]

You should

[@johnmwangi6291]

@@Bias_Prineus for one to survive in this industry you have to understand this wave form and thank you for helping us out sir...✍️

[@Bias_Prineus]

@@johnmwangi6291 I wish you, to be better than Bernie

[@johnmwangi6291]

@@Bias_Prineus that man is a genius.. much respect for him..I wish I could get access to his classes...

[@Rickie-x2]

You are an excellent teacher, whether in the shop or classroom. Thank you sir.

[@48pianoman]

Great Class Bernie I always watch your Videos and there all understandable specially this In cylinder , Good Technic to finding this hard misses that can't be seen with the scanner only with an oscilloscope the hard part is interpreting the waveform details

[@DJ-tn7vj]

Excellent presentation Mr.Bernie. thanks for the tips

[@exmotorsports]

Thank you Bernie for making this available...Time went by very quickly during the WTI class. I appreciate you for sharing your knowledge. 😎👍

[@bekomcar554]

Professor Bernie, who else. A big take away is throttle being closed for static one. Thank you, from Korea.

[@burninggearsmobilemechanic]

This is a "watch several times and pause to take notes" type video. So much information I got overload. 😆 I will be using this video with my apprentice when we do scope class.

[@traildisc155]

Hey bro i follow u on ig

[@burninggearsmobilemechanic]

@@traildisc155 Awesome thank you!

[@Sofi-x7o]

Thak you so much for your time , and for showing us your conociments🙏

[@MrScriptex]

Excellent technical training. Thank you Bernie!

[@James-fs4rn]

👍 That was a load of valuable info. Thank you for sharing Bernie!

[@IAMNOSLEEP]

I watched this on the live webinar and again here. Thanks for sharing this great info. Cheers...

[@timstanford3443]

Bernie, thank you for all you do! I am hooked 🤓

[@sergiopabloautoelectrico8111]

Excellent video. Thank you very much for your support

[@theautomotivedoctormr.wils9217]

Thanks for sharing this awesome info , great class Bernie . Caught it when it first aired , will enjoy watching again .

[@armandonika]

You are a very Knowledgeable person Sir!

[@PedroGonzalez-yr6xd]

Hi, how are you? Greetings from Mexico. Congratulations on your channel. I greatly appreciate the effort, time, dedication and knowledge that you share with us. Although in many countries where we speak Spanish, we do not understand English very much. We make a great effort to understand and translate the English language into Spanish. Since all automotive information comes from or is in English. And there is very little information in Spanish. Although Spanish is the second most spoken language in the world. I HOPE FOR THE FUTURE YOUR VIDEOS YOU MAKE THEM WITH A SUBTITLE. MANY CONGRATULATIONS AND THANKS FOR SHARING YOUR KNOWLEDGE.

[@IamReadyToRock]

Love it... thnks Leyend!!! From Peru 👍🏽👍🏽👍🏽

[@ernestomonge7726]

Excellent demostration

[@nowayjose596]

Just an FYI for others watching/learning - there are a few times in this video where he refers to the "volume" of the air when what he really means is the "mass" of the air i.e the actual quantity of air molecules and not the amount of space they occupy.

[@SimplyDiagnostics]

I'm in awe, thanks for sharing this video Bernie, you're awesome ⭐⭐⭐⭐⭐

[@billyyoder8171]

Thank you Bernie. Good job. Do you have a workbook we can purchase? Have a blessed and safe week to you and your family.

[@PineHollowAutoDiagnostics]

Love your lectures, Bernie! Why is the term "volume" used often when it should be "mass"?

[@marchornby7067]

I had the same question

[@Tranibob]

Using the term volume instead of mass does not make any sense here unless I am missing something. I am surprised to see that the person who made the video has not replied to your question.

[@dougmacqueen1679]

It does seem to be confusing. Sometime volume is used correctly as it indicates area. But I have never heard of something leaking volume. And when he speaks of air then we have a compressible and expandable gas which is the mass contained within the area or volume. I think.😮

[@nowayjose596]

THANK YOU! Obviously Bernie knows what he means when he says that (although it's still the wrong terminology), but the problem is that it can be confusing for others who don't understand it as well.

[@parsonsmechanical]

Great information. Thanks for your time and experience.

[@paulberumen9258]

excellent explanation, thank you for sharing your knowledge and taking the time to do this videos.

[@scottdoney6926]

I love to know who the six people are that give this a thumbs down ! Obviously not techs

[@eduardofrederico]

Muito bom. Excelente aula!

[@2ndgenblazers]

Thank You

[@mdushaka6403]

Crystal clear, very informative thank you Bernie God bless 🙏🙏

[@denissoares8215]

Grande Bernie Thompson...

[@baxrok2.]

Outstanding overview. Thanks!

[@turningwrenchesautorepairm5017]

Great class... my only critique is the person who is in charge of filming. Should have stayed zoom in the pressure picture. I few times it was a bit difficult for my old eyes to see what Bernie was pointing at

[@luisalbertorios7186]

exelente maestro muy amables

[@saltydogg]

At 19:05 he said the energy produces the heat that pushes the piston down. Did he mean to say the pressure that pushes the piston down?

[@stephendennis7871]

The heat expands the air which creates the pressure that pushes the piston down

[@alexsalazar1356]

Great video thanks for sharing

[@bartscave]

Detailed explanation Bernie. There are dozens of people making cheap transducers using eBay components. Drawbacks being slow sample rates and the lack of the ability to measure below zero. Has anyone found an affordable transducer that is better quality to experiment with?

[@TheDerekeder]

The low cost gauge pressure sensors (e.g., 0.5 to 4.5 volt = 0 to 200 psi) do read below zero! The gauges are "zeroed" to atmospheric pressure at sea level with a voltage output of 0.5 volts. Any "pressure" less than sea level will give a reading below 0.5 volts. A 200 psi gauge has about -25psi / 51"Hg vacuum measuring capability.

[@terminaldiagnostics5576]

Thank you very informative much appreciated

[@BadrBadolino]

thanks man

[@luiseliasp]

Hello master. Very good class about pressure transducer. But I've got a question. You said two towers in b and m should be 20 degrees from each other but I can see they are far away. Did I miss understand that point?

[@kc360awareness]

You have to use cursors to measure how far they are away.

[@drakevelazquez8728]

This stuff is amazing idk about you but I learned the old ways but prefer the cleaner tech way

[@dekonfrost7]

Exactly

[@therealspixycat]

27:00 would the air intake cycle pull more exhaust in from the high pressure exhaust manifold via the closed leaking exhaust valve instead of air through the more vacuum intake manifold via the open intake valve? Is this the cause that that cylinder misfires ?

[@hightttech]

Nice lecture 👍

[@darosmotors4569]

Thank you!

[@АлексейСоловьёв-ь3щ5ш]

What if i have a spike on my exhaust stroke tdc but i got only one camshaft and 4 rockers per cylinder. Also, at idle no problem, but when i rev the engine up, the exhaust tdc spike get higher and higher like im losing a normal scaveging. I could have udrestand that if i had 2 seperate camshafts, but i have only one camshaft. Exhaust is not plugged. Im confused, that is not normal. It gains losses of power to overcome this excessive pressure and also makes my fuel trims go negative - false rich condition. My exhaust valves, spark plugs and lambda sensor are white. Lean mixture white.

[@WissamAbbas]

Hi, if we have engine oil consumption can we use an in-cylinder pressure transducer to locate the problem ?

[@mr.technician4144]

sir,,how the atmospheric air that goes to the exhaust pipe in rush into combustion chamber if the exhaust valve still close and when it's open their's an exhaust gas rushing out from combustion chamber to exhaust system therefore the air from atmosphere cannot come in.....

[@alexmessina3383]

Amazing! When Bernie says waveform gap from centre TDC line should be with 20deg, does he mean compared to the next pressure peak, or that one half (compression) of peak tower should be within 20deg of the other half (decompression) ... sometimes he goes a bit fast and it can be difficult to get what he means. Any help?

[@simclardy1]

why would the pressure tower move to the right of tdc?

[@juergenscholl2843]

Thank you.

[@أيمنالسيدمحمدصفوت8560]

can we use it for diesiel engine that's not have throttle ?

[@Hannn212]

Hallo sir , excuse me, i want to ask something, Does rpm affect compression? thank you , i hope you can reply in my comment

[@frankjohn4302]

Never gets old like the godfather movie

[@juanvasquez7148]

The best

[@safarshi]

Can someone tell me did we have engine spark working? In other words did we have ignition working on this test?

[@Lambros_Stefaneas]

No spark at all.

[@orlandocortes8022]

Subtítulos en español sería grandioso🔧🔩🔧

[@alexgonz5550]

Wuau👍👍👍👍👍👍

[@boogiedageneral]

Adiabatic = Heat (Q) doesn't change from previous state . Definitely right not enough time for thermal expansion on compression stroke.. heat from intake process dont have enough time to shed head

[@dancudworth8963]

Pretty confusing

[@johnsmith-dm2tq]

Found it.

[@Carlitosway211]

I like how many times he said retarded. Lol

[@carstengotfredsen160]

Thank you.