Why Do Engines Need 3 Piston Rings? Explained

A piston ring is a metallic split ring that is attached to the outer diameter of a piston in an internal combustion engine. They are typically positioned in grooves or slots on the piston itself. These rings serve as a sealing mechanism between the piston and the inner walls of the engine's cylinder.
Piston rings ensure that the combustion chamber, where fuel and air ignite to produce power, remains sealed during the engine's operation. This seal prevents any gas from escaping or oil from entering where it shouldn't be. This sealing action is essential for engine efficiency and performance.
Automotive piston engines typically have three rings per cylinder. The top two rings known as compression rings, are primarily for sealing the combustion chamber. The bottom ring known as the oil control ring, is primarily for controlling the supply of oil to the cylinder wall.
--- Time Stamp --
00:00 - Introduction
00:58 - Functions of Piston Rings
01:26 - Types of Piston Rings
04:29 - Piston Ring Materials
05:10 - Why Piston Rings Fail?
06:10 - Blowby
06:54 - Life of Piston Rings
07:45 - Common Piston Rings Problems
#icengine #piston #pistonring
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Disclaimer:
This video is for educational purposes only. We are not in the auto repair business nor publish automotive service manuals. This video is not reviewed or authorized by any vehicle manufacturer. This video is intended only as general guidance. Every system is slightly different, so refer to the owner’s manual of your vehicle for any specific information about your model. Remember that only proper service and repair procedures will ensure your car's safe and reliable operation.
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[@user-wf8rr3lh1i]

This video is simply the best! So illustrative. Easy to comprehend and it answers every question. You get 5-Stars!!

[@s.m.h.m8804]

Very comprehensive and well explained.

[@funnyvines9474]

It's a good video relating to the engine performance. It increased my knowledge and gave me a lot of information about piston and piston ring. Good job and thank you

[@peterlonter9053]

a very good explanation of rings problems . like and subscribed .

[@MrRoaster69]

Wow complete guide on Piston ❤️

[@theautomobileexperts5535]

THANK you sir for uploading the video. My ears feel blessed to hear your voice.

[@m1421]

A fantastic video. Thanks!

[@JOENCANATA-ju6lf]

Big help...simple and understandable

[@jay-peephillips2349]

This was very helpful and informative. Thank you

[@salascarlosgerardo6070]

Well explained...clear lenguage. Thanks a lot by your time

[@omerahmed2458]

Very well explained... Million likes !!! I need to know about whole engine so that i can repair my own bike and car engine ❤

[@andrewthacker114]

Good information, thanks for sharing

[@MiyandaMalama]

Powerful explained

[@TundeEszlari]

Brilliant video.

[@elias1162]

Very well explained nice work

[@mevoidieuboyer3989]

I learn a lot from this video

[@bensanchez313]

Thanks well explained.

[@opeyemiyussuf552]

Interestingly educative.

[@piskorzboxing]

great informative video!

[@mugabopatrick4590]

Well explained keep it up

[@giauscaesar8047]

This is an excellent video thank you so much.

[@ANACONDA_2000]

thanks for this good explanation

[@mikayilrustamli8891]

Thanks for explanation. All stuffs is good.

[@clementmwenewisi8340]

Very educative and l now know why engine power loss is on my vehicle

[@jonghoonhoon3505]

That's so good explained ❤

[@jarvisconrad2348]

Useful content Boss....a clear knowledge of this saves not only the vehicle oners wallet but also the environment in the longer run👏

[@anwarzarrough1769]

Thank you for this video its explain everything

[@LordofKings-Raj]

Deatil technical information shared....thx

[@wanpisthomas9497]

Best explained ❤

[@user-bq2pq8sh1p]

I love the presentation ❤

[@phoco6919]

Thank you your video.

[@Chipt]

Thank you!

[@JustineMalupenga]

Nicely explaination

[@mohammedgamal9733]

Great video

[@psycosis12]

I love this channel

[@oguzoner3050]

Very explained! You have prepared with nice animations, different from others videos, I like it👍

[@seenanll4181]

Thanks a lot.

[@user-jv7kr1rg5k]

Good job 👍

[@robertoudokrapf453]

OLÁ. 8/12/23. CREIO TER SIDO O MELHOR QUE VI NA INTERNET ATÉ HOJE. Poderiam ter mostrado o lado de montagem dos setores de aço em relação à lateral da canaleta do anél de óleo. Devido ao processo como é fabricado o setor de aço não é perfeitamente plano. Como a função é de "regular" a quantidade de óleo para os anéis de compressão o erro de montagem pode provocar aumento do consumo de lubrificante ou insuficiência de lubrificação. ABRAÇOS... Roberto Udo Krapf (ex Cofap, ML, JB e ks)

[@pacificodeluta7507]

Good job sir

[@Spitfireseven]

This was an excellent educational video

[@JohnpatrickOkeny]

EXCELLENT

[@melvinkasoka2669]

Thanks❤

[@leisuremechanist3800]

Well explained! However, a well-designed and maintained engine and its piston rings can easily last 400,000km/250,000 miles without opening the engine without the engine's oil consumption having increased significantly.

[@abrahamnkhoma4700]

Very much educative

[@dmatteo1609]

I have a vw tdi that's just hit 300,000 miles. That's just with regular oil changes every 10,000 miles. I'm gonna try and get it to half a million miles. 🤞

[@1983dmd]

Totally agree. The estimate of 100 000 miles is false IMHO...Frequent oil changes with quality oil will greatly help improve longevity.

[@eliezerramosjr1017]

@@dmatteo1609changing oils at 10,000 miles don’t know how you lasted that long but if you continue it might not.

[@ChrisKsan]

I'm at 430,000km on my diesel and blow by showed up just recently.

[@TraumaER]

Whoever invented rings was a genius. I would have designed the piston system with a tight tolerance around the cylinder walls.

[@user-ib1rq6bk7d]

Superb

[@arupsau2102]

Very nice

[@ziauddin7948]

good explanation of piston rings #👍👍🇵🇰

[@onurgns]

It is very important engineering and hard to do it with all pressure heat and imagining bores widen during heat . Also oil need to lube the walls without excessive oil consumption.

[@user-pv9kh2qc6q]

Thanks... Please make a video about car wiring

[@SakthiVel-vm6ub]

I am sakthivel from india. I'm studying marine engineering. I am really admiring of your videos .Could you try to post video related to ship engine side. Your video are really fabulous I ever seen

[@robertoudokrapf453]

OLÁ. 12/12/23 - Assisti novamente o vídeo. A realidade é que o assunto em pauta é imenso. Se examinarem o anél de óleo "SIMPLES" por Vós demonstrado no mesmo vídeo poderão constatar que a montagem do com setores de aço por Vós apresentada é incorreta. Eu teria mais algumas informações mas continuo afirmando que é o melhor que vi na Internet. ABRAÇOS...Roberto Udo Krapf

[@yslee1401]

I had a Nissan Sunny from the 80’s. The engine lasted more than 450,000kms without increased oil consumption. Those early days Nissan engines were bullet proof

[@stevenpollard5171]

The early Datsun roadster engines had pistons with 5 rings.

[@drury2d8]

They also ran lower compression

[@TraumaER]

Now Nissan ranks near bottom middle of all car manufacturers.

[@princejallah1268]

I'm a mechanic this video help me a lot and i hope to watch your video at all time.

[@adnessmwaba]

It is a good video

[@miriamvivo4279]

2002 honda accord se 169,000 miles heavy oil consumption. Gonna try piston soak

[@HarleySLA]

Use Top Engine Cleaner, I think it's AC Delco brand. Comes in a metal can. Honestly the rings might be too far gone, but worth a try. Regular oil changes and carbon cleaning are key. I had a 99 and it drank oil like water, I topped the oil at 1000 miles and at 2000 miles id change it. Those old accords just never quit. Thing ran and ran, I worked with a guy that had one he ran low on oil for two weeks, no knock topped it up and it kept rolling.

[@zakihasan1487]

Nice

[@jeffersonbarcelos8695]

Great.🎉

[@ambalilanre5182]

It's helpful

[@user-kw7zb8qw1u]

Rc race cars don't use for high pressure waves they still have lil grooves which act like a seal but some don't have rings

[@mohkrish2406]

can you put video ,that How to Set rings gap position, on the piston

[@EGYPTIAN_MECHANICAL_ENGINEER]

GOOD

[@seladickson]

Explicitly explained

[@user-jn8ej4kf3l]

we are 20 years professional engine parts OEM manufacturer .Our quality is high and stable. We believe you will like our quality. Our engine bearing,piston ring, cylinder liner,engine valve mainly apply to Cummins,Caterpillar,IVECO,Volvo,Scania,Man,Komatsu,JCB,etc.

[@africantiktokfunny6745]

Plz make videos of smvt as many as possible

[@axnnaandmikeyplayz5044]

What is that?

[@fisalsawad3029]

أحسنت

[@TheHuamantla]

Can you do a video about the alignment of piston rings European car if is possible a place where to place orders.

[@JustineMalupenga]

Don't be tired

[@DavidSmith-vm3cu]

How about broken rings? I have found a few, with deep score in cylinder wall.

[@jantelow]

If compression, PCV and valve seals are ok, I think it's oil rings that are bad, or could it be something else?

[@rashidminhasbhatti9618]

In case mechanic upper 2 ring fixing a positive direction...what simtum showing engine starting ... please tell me

[@Noel-fq3fz]

Can I get set of piston and set of engin spare parts

[@derejetechannie5932]

Can you make another video about how you set the piston ring because I saw different videos but it’s not similar tell us how the right way to set the piston rings thank you.

[@matufujiwara7493]

there are mostly 2 ways of doing it. most typical is with 3 piston rings. Many of the service manuals on newer engines say to put all 3 ring gaps at 120degrees from eachother. and another way is to put the gaps on opposite side of eachother. i personally put the ring gaps at opposite of eachother.

[@MarkSmith-js2pu]

How big is the gap in the split ring?

[@boredom4619]

I have a question 😢.. What if the expander ring isn't placed perfectly. Let say, The two ends of the expander ring do not meet perfectly, for example one end is stacked on the other end or one end of the ring is not perfectly attached to the piston body. What will happen? 2:58

[@BoscoOryemaoroma]

Am now interesting to join you

[@RaymondSsendawula]

Great brain desert 👍

[@user-ce7eb1vz8l]

Nice way ❤

[@jamesgichuhi2174]

That was my best key . my professional area

[@colinbrazier8511]

Spark plug contamination photo is misleading. Work on piston rings is a long and expensive job.

[@JattoDavid-lj6hw]

Hi

[@davenone7312]

Never explained the huge gap in the piston rings. The ends do not end up flush against one another after being installed! A ton of blow by gases can just pass on thru! Please explain this huge gap! Look at that diagram at 2:46, there is a huge gap that can also be seen after it is installed.

[@envitech02]

The rings act as a seal between the combustion chamber and the crankcase. However I don't see how this can provide a good seal when there is a clearly a gap on each of the rings. Wouldn't the gasses pass through this gap and leak out?

[@gaborkorthy8355]

On assembly you stagger the ring gaps so they do not overlap to eliminate blowby.

[@flutibg]

The gap looks big when the piston is outside the cylinder, but when installed the ring is compressed and the gap becomes very small - about 0.25 to 0.50mm and it almost disappears when the engine gets hot. A little gas passes through the gap but the quantity is almost negligible.

[@darrylleigh7514]

It's called ring in gap. If set properly and the 3 different rings staggered 120 degrees apart it will perform as designed with very minor compression loss or blow by. All internal combustion engines are designed and have been for decades to operate this way

[@jeeprat]

You never mentioned how critical the ring gap is

[@kudlarno4751]

🎉

[@NoelTahal]

In my country it carry 5 u forget to check the oil ring

[@user-hg7ld6mn1g]

thanks,

[@angelitavaldellon7600]

There have been many engines that use 4 rings.

[@MatovuRonald-ej5vk]

Wow

[@vg23air]

except on the honda insight which has the most mpg of any car ever.

[@dejectedfrogcat2840]

So why not 4? or 5?

[@FaskaBalcha]

❤❤❤

[@pppgeral]

Não entendo como os anéis de compressão recebem lubrificação, visto que a saída de óleo se dá no anel inferior. Poderia explicar? Obrigado.

[@alfaidgafoer6268]

Toyota said... 300.000 miles... But im still alive

[@prasetyoardi7912]

Sometimes I also use ring on my piston, to make it more durable

[@ILSCDF]

Man...

[@TraumaER]

What piston?

[@Marcelo-bb5fp]

Show

[@FaskaBalcha]

Arif

[@user-th2om2hx9y]

hadir bg

[@eliekhoury8527]

❤❤❤❤❤❤❤❤❤

[@SundayGideon-of3qq]

😅

[@ukuskota4106]

JDM Pulsar and Sunny have 1 compression ring, whereas their european twins have 2 compr rings in GA and QG engine

[@9yearand854]

👌👌👌