ไม่สามารถเล่นวิดีโอนี้
ขออภัยในความไม่สะดวก
ต่อไป
เล่นอัตโนมัติ
How to Repair & Fix Cracked Cylinder Head || Rebuilding 4 Cylinder Leak Head of Cummins GeneratorAmazing Things Official
มุมมอง 1.9M
When A Gang Leader Confronted Muhammad AliBoxing After Dark
มุมมอง 5M
Billkin, PP Krit - ยอม (Surrender) - Live Session (BILLKIN PP KRIT x BUS7)Billkin & PP Krit Official
มุมมอง 154K
โฆษณาจาก Samsung คราวนี้ก็โดนกับเขาด้วย #ดรไอซ์ DR ICE
มุมมอง 85K
หมาคาบเกิบ - โจอี้ ภูวศิษฐ์ (JOEY PHUWASIT)「Official MV」Genierock
มุมมอง 691K
ไม่ได้นอนมา 5 วันแล้ว - RobloxTOR Torpedo
มุมมอง 177K
ALREADY PATENTED!!! - 2 Stroke Engine with Advanced Valve System From MazdaFt-share International
มุมมอง 1.5M
Will a barrel of engine flush clean a sludgy engine?Garage 54
มุมมอง 786K
Rotary Valves Make Normal Valves Look Silly - Why Aren't We Using Them?driving 4 answers
มุมมอง 1.9M
Does Pre-FILLING The Oil FILTER Cause Engine DAMAGE?The Motor Oil Geek
มุมมอง 2.7M
Compression/Leak Down test DONT MAKE THIS MISTAKE!CM Autohaus
มุมมอง 46K
Lapping and Checking Valves (EASY WAY)The Random Mech
มุมมอง 942K
Las aluminium cylinder head | welding aluminium | restoration cylinder head | cylinder head repairLas Diral Freedom
มุมมอง 1.3M
What actually happens when you overfill your motor oil? (w/ transparent oil pan)Garage 54
มุมมอง 4.2M
เตะบอลกี่ครั้ง..ลูกบอลถึงจะแตก? & สร้างลูกบอลขึ้นมาใหม่The Snack
มุมมอง 105K
[ไฮไลต์] "บิว" ภูริพล บุญสอน วิ่ง 100m ชาย รอบคัดเลือก | โอลิมปิก 2024AIS PLAY
มุมมอง 642K
NONT TANONT - ดอกไม้ที่รอฝน (spring) - Reimagined [Live Session]LOVEiS+
มุมมอง 322K
How to use BASIL on PIZZALionfield
มุมมอง 2.7M
ศึกเพชรยินดี 01/08/2024True4U
มุมมอง 66K
วัยรุ่น ปรุงเเต่ง | วัยรุ่นวุ่นวาย 💢โจ๋ โซเชียล
มุมมอง 702K
การแบ่งปันเป็นสิ่งที่ดี น้องเจเคแบ่งขนมให้คนอื่นจนหมด sharing is good #การแบ่งปัน #sharing #shortsคิดดีทีวี | Kiddee TV
มุมมอง 490K
Very low tech..but VERY high quality results 😎👍
Im not absolutely sure about that because the valves have to be tight the other way round....
Boa tarde 8
@@simonbarth9702 ? they re obviously leaking
Weak springs make the valves go up with air pressure... so no not good
@@SnowWow No one checks the valves with water. Kerosene is used for this
Ok I learnt something on TH-cam today
Same
This is what’s wrong with the internet🤣🤣
No he used water u should use petrol and leave it you learnt off of someone that thinks they know what their doing nd they kinda do but no he's done it wrong you don't pour water on ya valves and water thicker that fuel his methods completely wrong ..he ain't no mechanic he's a self tort mechanic 100%
Gasoline is better because of density, but I am not using water to wait for it to leak down! I am using pressurized air and the water is just to see the air leak! You slow down with your vocabulary! I am doing this method because it always works for me , I am used to it! There are many other ways to do it! And this video is Way more useful than your comment!
Yh I get where Ur coming from NW if u were trying to identify a specific valve then yh kudos the method works but u did name video leakdown test mate ..
now they will grow into big valves
This shit too funny
This comment wins the internet
There shall be 32 valves withing 5 weeks if keep in the right growing conditions!
Shit 🤣🤣🤣
The valves that bathe together, stay together!
You would have better results with isopropyl alcohol The surface tension is lower it will be better at penetrating any small gaps and it will evaporate away with heat or ambient temperature for the more it doesn't create corrosion when a small few drops get left behind😅
Лучше керосин!!
That's what she said?
Й
You obviously didn’t watch the whole video. Smh DUM BASS
Water is free, alcohol aint, just saying.
back in the days of the romans....we used compression guages!!! works every time!
How will that show you which of the four valves on that cylinder is leaking?
✌🍩
how is a compression tester going to help you on just a head
Days of the Romans?? You mean cars existed when cleopatra was a thing lol
@@DA_BEAMERRRR yes...every charoit had em!
@@donutdan1508I would do every valve in the head
Wow!!! Originally I thought if water leaked out of top that would indicate a leak! This is cool!!!
O ideal seria comprimir o ar e não desce jeito, onde o ar vai e sai rapidamente.
I hope i can remember this for my next rebuild in 20yrs. Simple, easy and effective. Great job
Налей керосин и он покажет какой клапан не держит, без надувания воздуха.
Exactly 💯
Бензин тоже можно налит
@@umidjonxolmurodov1498 лучше водку, в стаканы грам по 100!
секрету герметичность не должна быть со стороны ножки клапана да и запотевания даже с киррсином не увидеть
И не в камеру керосин заливать, а в каналы. Тогда будет нормальный тест
The good old methods are always still the best😊
You don't use water since it has a different surface tension than gasoline. It's pretty much pointless.
@@johndowe7003you know something but has no application in here .U can use piss and will still work in this case ..😉
Just did that to one of my cylinder heads on my 3.0 Ranger. Number two cylinder was so bad it just ran right out of the exhaust port.
This could give good results depending on how plmuch psi you run through that air chuck. Valves hold pressure from the opposite side that what you're blowing on, akd too much pressure could overcome the valve spring depending on how concentrated it is.
😊
Water is to "thick" to use for this test. Use a solvent like brakeclean or gasoline instead.
Yes you are right, but I am using air gun for this test! The water is just to see the air bubbles is there is an airleak!
@@valeriumoscalu7580 they didn't get that master
Hi sir
Did you watch the video till the end? Water is here for indication purposes only, and the main tool is the air gun, which generates the pressue in intake/exhaust lines
Yes you are right ! But looks like nobody is watching till the end this video! Everyone speaks just about water! Nobody see the air gun!
Bruh people need to start watching till the end🤣🤣🤣
This days people don't have patience to watch videos more than 5 seconds)
at least you learnt something within seconds though
Better to use kerosene for that test and then instead of using air just do a visual look at the back side of the valve seat and if you can see the kerosene wicking past the seat you know you have some more polishing to do
We used to gasoline motorcycle heads yes gasoline will flow through anything the exception being a valve that is seated properly.
Yup
Yep. Sometimes compressed air will bypass the valve from the port side but the head will run just fine.
Simple but very effective. 👍👍
That’s a strange way to boil water
Leave for six weeks and you’ll have a nice tight rust seal. Rebuild complete!
I love simple tricks like this. Throwing you a 👍
Наоборот нужно налить во впускные каналы, потом выпуск. И все видно будет наглядно
Вода - хрень. Керосинчик лить надо!
Dont use water, use diesel or similar. Water has a lot of surface tension and it prevent water to penetrate eazyly. Pure physics.
I totally agree with you this is why I am using pressurized air! The water is just to see the airleak!
you don't want it to penetrate.
Its a lot easier to see the bubbles than some eventual leak Inside the ports, watch until the end.
Cylinder head valves may have some water as a treat
Water? 😂🙌
water AND compressed air ;) 🙌
Про керосин уже сказали, но не слышал чтобы сказали что нужно повернуть блок, и по очереди пролить впускной и выпускной каналы
That's the perfect idea to check head valve seat leakage problem. Me too a motor car mechanic. Love your video.
Thank you!
So what needs to take place when leak is found?
You need to do this procedure untill there is no leak!
th-cam.com/users/shortsbn8jrFWf4VY?feature=share
@@valeriumoscalu7580
Thanks
@@krypttoenight9971 we should resize the valves seats by grinding it with amry paste or otherwise we have to change valves and new seats.
Very efficient way to test, blessings
You can move the valves with compressed air if there is a weak spring. Thats why a compression test must be from inside out!
Not to be a smart ass, (like most answers on here) but if there was a weak spring wouldn't you want to catch it now? Just serious food for thought.
@@midnightrider1854 sure, but thats not a compression test. Compression comes from inside, not outside the engine. If a cylinder head is out, you should replace the springs anyways, especially if there was a temperature issue. Sorry for my English, is very bad.
@@secret8440 Your English is fine. And I load each spring and if they all pass then I reuse them. If not then I replace them. But we don't know that he is rebuilding the cylinder head for an overheating issue. It could be just because the engine is getting rebuilt from to many miles or weak compression from lower end.
I am rebuilding because I got it from wrecking yard , so decided to make sure it's all good before installing it!
@@valeriumoscalu7580 Thank you for your input. I was curious as to why. Also, was it leaking by from burnt valve or weak spring?
time to do some valve lapping!
thats a neat trick , allways figured you needed to leave the water in there and see it drip out of the port when the valve isnt sealing
Don't use water. Use gasoline or alcohols or coolant
You do. The air pressure lifts the valves like this giving a false diagnosis.
I'll try this next time I have a leaky valve! Many thanks Man!
✌❤🍩
This man don't care the oil test. He use air test. 🔥🔥
Exactly, but not everyone understand it!
Not only do you check for leaks it also gives yeah a good 2 month time frame of getting new valves once they rot out
dry it then put some oil on it maybe 🤷♂️
bullshit
Dude, water isn't like acid.... It doesn't break down metal just because its been wet.
Those valves have been permeated with engine oil and carbon. They will not soak in water. A good hit with the blow gun and everything is 👍
Good job!
Wish you success in your life!!!!
Hi sir
Gasoline is also a good indicator for checking valves for tightness.
You can walk away from it for a while and the water will tell you, but I like this version a lot better. Thanks!
Зачем же воду наливать? Обычно керосином проверяют.
У низ дорого наверно
Задорнова помните? " Ну тупыыые!"
Как понимаю вы один самый умный здесь!?
Что бы мы все увидели 😄
Это профи
Permukaan klep dan dudukanya seperti kaca 👍😁
Another trick is to remove the porcelain from a spark plug and weld an air fitting into it. You then feed compressed air into rhe cylinder and listen for the air escapeing and where it's coming from
This is called compression leak down test:
th-cam.com/video/wgPmZxrt34M/w-d-xo.html
Бензином видно хорошо
Все работает, если знаешь что делать Нада, если просто наливать и ждать да бензин проидет там где вода не проидет, но я воздухом проверял , так что без разницы там вода или бензин!
Это если уж совсем клапан не прилегает.
Бензин испаряется,обычно керосин!
@@valeriumoscalu7580 но лучше бензином , он лучше проникает в отверстия . Почему нельзя воду в бак лить так как она не проникнет туда где есть дырка или не проверено .
ну и вообще воду нельзя туда лить воду в бак 😄
Used fuel it has a thinner consistency and so more accurate
And most people don’t really like the idea of water on there cylinder head
It really makes no difference 😂 still gonna get bubbles if there's a leake
Yey I Got a New idea💡!!!
THANKSS
You welcome!
I saw it when the set up valve of my owner type jeep test for air leak. So nice trick
No that my friend is some need to know tricks, totally awesome brother
Very cool. Just learned something.
Thank you, but next time you better use diesel oil, so, that there won't be much rust left on the surfaces !!! ! !!!
Great point! Thankyou!
If you dry it there’s no rust.
👍👍perfect valve leaks check,
Great video!
Thank you!
It will always leak if you using compressed air against the valve , the air pressure pushes against the valve and slightly compressors the spring resulting in a leaky valve for me the best way is gasoline or even thinners and then just judge how long it takes to seep if it's long enough the lapping is fine to quick and you would need to reseat
No is not! After I grinded them none were leaking!
You do have to allow for so much back pressure on the valves without leaking like in cars that run high back pressure due to having big turbos you don't want you exhaust leaking bk in cylinder so he's not wrong in using the compressed air if he sealed it the blew air threw then would be wrong but valves should allow back pressure without leaking TURBOs create massive back pressure on both banks so they shouldn't leak ..bare in mind it's a bike engine I think Yamaha FX...so won't have the strongest springs in the world coz It don't need em ..
@@chrissweeney2738 it's a jet ski! Yamaha FX cruiser ho/ 1.8 liter engine! Here is the jet ski on the water after repair!
th-cam.com/video/9GTlXrgrMPs/w-d-xo.html
@@chrissweeney2738 And here is what was the problem before repair! Broken piston rod and bent valves!
th-cam.com/video/0XMswknQtB0/w-d-xo.html
For extreme quality, use turpentine or paint thinner, basically any liquid that evaporates quickly or has a very low density.
I’ve been doing that for years. It works great.👍🏻🇺🇸
Очень не плохой способ проверки пропусков 👍
Не воду надо лить а керосин
Why because of the density? I am not waiting for the water to leak down! I am blowing pressurized air and I am using water just to see if air is coming up from under the valve or not!
The port needs to be sealed then pressurised. Blowing compressed air in will only show up big leaks. Wasting your time to be honest
@@valeriumoscalu7580 The valves became hydrofobic, due to the carbon that built up at them. Since water is hydrophilic and kerosine is hydrofobic, leaks the kersosine earlier between the valves, than the water.
Pretty slick! Thanks
You welcome!
I knew there was many ways of doing this but this is the first time I've seen anyone pour water in a engine.
I always use gasoline
Or alcohol.
керосин наливаем , а не воду ))
Excellent video
Thank you!
You definitely learned from a old school person.
My grandpa taught me a lot about
mechanic testing and about women
as well !!!!!!
PASS ON THE KNOWLEDGE THAT I HAVE TAUGHT YOU !!!!!!!
Trust me he knew a LOT .
Bardzo dobry poradnik 👍 💖
Sprawdzone info ..
Muy buena técnica!!!
My grandfather use aeronáutical gasoline!!!
It's better than water because of density!
@@valeriumoscalu7580 viscosity*
You do a leak down check BEFORE you pull the engine to pieces. You learn a LOT more.
Not when you have a piston rod broken in pieces!
Damn, I already knew about this test. I forgot to do this when I lapped the valves on my 90 Miata. It blows smoke like crazy but I'm sure it's 1 of the valve seals that I didn't set in properly.
Керосином проверяют этот пролезет везде.
Керосин надо 100% . Он лучше покажет :)
Но здесь же воздухом проверяю! Чё не видите чтоли?
@@user-iz6zt9pj2p Но керосин лучше проникает :) Любая трещинка и вооляя он полез туда :) да и проще .
И лить керосин надо со стороны колекторов, тогда сразу все видно
@@user-gw8eu5ng3r можно тосол! Он тоже проходит хорошо, и у каждого водителя имеется!
I put fuel in holes to check for leaking.
This is actually a good way of doing it
I’ve seen this done with gasoline, but I think it was added from the port side. Then you just look at the valves for seeping.
Exactly what I do. No point in blowing air through the ports. Just reverse the process
Now use alcohol... From the other side. Fill the ports and let me see them leak.
This maybe a stupid question for you, so I'm sorry in advance.
But why alcohol ?
I really curious and have no idea about that.
@@nuttydoraemon its thinner than water and will show leaks quicker.
@@CatDad01
Thank you very much for the knowledge.
I try to learn to not get fooled by some bad mechanics.
Yes that's true alcohol density is lower than the waters density this is why it work better if you fill it and wait for the leak! Butbi am using pressurized air and the water is just smto see the air leak , I am not waiting for the water leak! And this is not first engine I fix this way and it works perfectly fine!
Alcohol or turps wont rust it either
This is a cool way to do a leakdown test if you have the heads off already
learn something every day thanks for the knowledgment you videos
Subap kaçak test 👍
Hi sir
Tengo una idea mejor, si le echas gasolina o disolvente se cuela por cualquier rendija por muy pequeña q sea
Esta prueba es la que me da seguridad
Air passes through faster and smaller spaces
Exactly, but Not everyone understands this! They think that I am waiting for the water to leak! But the water is there just to see the air leak!
@@valeriumoscalu7580 yeah they test compression similarly in modern smartphones where you can blow air into the sim port and test the the psi internals of the phone after sealing with tesa tape and fasteners. Cell phones can use their own barometric sensors to test its own pressure and some phones have tested using the speaker as a sort of pump to keep the internal phone air just pressure over atmospheric to improve waterproofing.
Bubbles should be generated, for a good compression of automized fuel-air mixture, use the grinding paste to fix the problem
3시간 이상 걸린던 내가 원망스럽다.
바로 실천 들어감니다~
Shit! Ima run into the garage to test that Datsun head ive had for the past 5 years!!!🤣🤣🤣 Not a bad idea
If you use washer fluid that is mixed correctly you will be able to see it leak down and out the intake runners. Just another way.
I use gasoline since it’s thinner
No dude. It’s not the water goin through, it’s the air. He’s just using water to see the air going through
Edit: wait a sec. We’re you just joking?
@@Hanz_em gas works better.......he's not wrong
@@Tpitgr you got a point
Much better if you put gasoline. And check the leak
I am checking with air! Water is just to see if there is an airleak or not!
gasoline is better as it has less surface tension.
My Dad showed me to turn the ports up and add a little gas. A good valve will not leak any gas through.
This way is good too!
Yes, gas is less dense then water, yr can also use wd40
мы тоже так проверяли ,метод рабочий проверено👍🖐️
Он дует обычным компрессором?
@@user-ru3wc9be9r да
@@user-ru3wc9be9r не знаю сколько очей у нас выдавал не больше 8ми
Easy and quic....
You must use distilled water, to get proper results. Regular water looks like that.
Hi sir
you must be trolling
@@pittbier7597 Just a Laugh God bless
Hahaha, I did almost similar thing with my single cylinder head but instead of using compressed air, I put my mouth on the intake/ exhaust port (already cleaned) and try to blow air as hard as I could while maintaining focus on the valves 😂.
Thats one way to do it!
✌🍩
that's how Louis Armstrong got started
Use kerosene or diesel so the oily film doesn't hold the liquid back like it does with water ,the kerosene and diesel will leak thru if the valves and seats aren't sealed and tight , no air needed it will run out of the ports
Unlimited Kindness is Coming to You ALL 😉🤗👍
🤔
nice idea
This technique is over 100 years old.
i did'nt know 😅
i use a different technique since the day i started fixing cars
Привет всем, Михаил из Якутска, привет мотристам, это проверка на Газы, Мотористы знают!!!!
Use brake fluid bud . It won't cercumb to surface tension like water. Brake fluid will find any leak rather quickly.
I am using pressurized air , watch video till the end! The water is just to see the air leak!
@@valeriumoscalu7580 ok I did watch the vid . But if you've got a valve seating well but not enough the oil will tell you. I like the test you did but it's not always thay easily detected. Been here a few times .
For me it always works! I am used to this method already! I found the golden middle! If the pressure will be too big it will put tension in springs and open the valve , if too low you wouldn't detect the airleak if it's too small!
@@valeriumoscalu7580 I've put brake fluid in and waited a dish and finally saw leakage weeping into the port
You're still gonna regrind ALL the valves anyway I hope
Why to regrind?
Because that is not a valid test. LEAKDOWN is made to pull down a vacuum not blowing in. So it makes it difficult to be relevant while being done in this manner. Sure maybe if you have no equipment and want to to see roughly where abouts the leak it but also can mean they can possibly all be leaking thus making this no all valid. But it’s a great DIY I Guess.
@@eliezerramosjr1017 your first mistake was having faith in TH-cam mechanics
good
If you don’t want to have to use air, you could just poor the water into either the intake or exhaust ports and see if water leaks out the valves
If to do this way than you should use gasoline or coolant not water , but if you use pressurized air it's more accurate and water works well enough!
@@valeriumoscalu7580 I use Xylene normally. But from my experiments, water will show the faults just as well as the Xylene.
Gasoline and coolant works better than water! Because of density! Water density it's higher!
salut et très belle vidéo 📹
Воду налил? 🤣🤣 А хотя бы керосин или растворитель у воды плотност большая
воду?.... пздц
Wet and dry compression tests reveal wether it’s valves or rings need looking it…once heads off you’d lap all valves anyway wouldn’t you if it didn’t need outright valve seats re grinding/replacing
I my case was going to show 0 compression in one cylinder because one piston rod was broken in pieces and a few bent valves so I needed to remove the cylinder head anyway!
Ein Wunder das die Motoren so lange halten
I did this today:)
So what will you do after this
Here is the whole process:
th-cam.com/video/cHvhMv82g1c/w-d-xo.html
Valve job
Works much better with alcohol as its thinner and will find a smaller gap than water will
Better than water yes, but not better than air! I am using air here , water is just to see the leak! Watch till the end!
Cek kebocoran👍👍
Hi sir
Nice
you need to pour kerosene from the back. then the result will be better
Correct also
"better". How so, if this also works effectively?
@@CadillacDriver the advantage of my method is that you can see which valve is leaking specifically
@@m-power666 soooooo you're telling me that you *can't* see which valve is leaking, in this video? Ummmmm...
@@CadillacDriver in this video the air is under pressure. So the valves are not checked because there is a load. you need to check without load and not with water, but with kerosene