Why the Honda K Series is the Best 4 Cylinder Engine

In this video, we do a complete teardown and analysis of the Honda K-series engine to see what’s inside and how it works.

The Honda K-series of 4 cylinder engines debuted in 2001 and is found in many vehicles including the Honda CR-V, Accord, Element, Civic, Acura EL, CSX, TSX and TLX. It has been renowned for its durability and strength with the ability to take on very high mileages with little repair. In addition, many aftermarket tuners have sought after the Honda K-series engines to build them for racing and competition, swapping in easy to source and modify components netting large horsepower gains due to its durable design.

In this video we take apart the K24 engine from a 2003 Honda Accord to examine all components, from the oil pan, balance shafts, engine block and pistons to the head, rocker arm and VTEC systems. We examine how the components are built and discuss why this is perhaps one of Honda’s best 4 cylinder engines for both modifying, racing or production use until today.
Skip to section in the video
0:00 Introduction
0:26 Overview
1:36 Engine Teardown
12:01 Component Analysis
22:32 Final thoughts

K-series Honda Engine teardown and rebuild can be done with common hand tools that can be purchased here:
Impact Wrench:
Engine hoist
Impact sockets:
Breaker bar:
Angled needle nose pliers:

Here are more related Honda Videos:
Idle Air Control Valve:

How EGR Works and How to Clean:

How VTEC Works:
How to Replace a Water Pump:

How Variable Valve timing works:

VTC Actuator:

This is the Camera I use:

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[brianbybee]

“Spilled some oil so I’ll use my wife’s wedding dress to clean this up”

[Visionery]

VW engineers responsible for, among others, the TSI engine, need to be sent over to Japan to learn how true engines are designed and built. TSI engines are failing at just over 100k km due to relatively minor cam chain/tensioner issues which should've been addressed during the design stage. Planned obsolescence immediately comes to mind.

[boomerguy]

I've seen these engines last over 600K miles with no serious issues. However, Honda engines MUST have REGULARLY SCHEDULED MAINTENANCE. Period.

[donhendri]

Great engines.
My 2005 Accord Lx with a 5 speed manual transmission gave me 491000 hwy miles with only basic maintenance and synthetic oil changes every 5, 000 mi. Best car I ever had.

[Tony]

22:41 Here comes your brother looking for his sock.

[EricStricks]

Absolutely wonderful teardown. Your voice is so clear and i love how you edit your videos! You show all the necessary details without wasting time!! More professionally done than most big channels and its done on the ground on cardboard!

[MrSupernova]

I learned so much with this video. I've own the same Accord for 11 years now and I'm aware of every single issue with the engine that you mentioned. I have no intention to ever tear down my engine for any reason but this video helped me understand my car's engine so much better. I hope one day I can develop the knowledge and nerves to do an engine swap or rebuild. Thank you so much!!

[Kanesgarage]

These truly are the best engines. 250k on my CRV and it still runs like new. No leaks, no noise, no issues whatsoever. I had a good look at the valve train when I performed a valve adjustment and everything still looks clean and good with minimal wear

[mikikum]

Yes! Every mechanic I know has told me that Honda's K engines are the best. And this applies both to K20 and K24. Btw, Honda's naturally aspirated petrol engines are generally highly reliable.

[NAUT]

My mother better not say anything when the engine in the Oddessy magically disappears

[Pau_Pau]

Man, its unbelievable that with all these intricacies and details you have outlined in your videos, you can buy basic modern cars for around $25K..
Everyone should feel entitled just driving down the road!
I guess the life lesson I have learned from your videos is that be grateful for what you have in modern life!

[mustyali]

Bought a 2006 TSX in 2017, hoping to dispose it in 2019 but after experiencing it is absolutely a keeper. The engine is absolutely stunning.

[alirezar]

6:02 Those two coil packs are bolt to the head via engine cover bolts. That's why when you remove the cover, there is no separate bolt for them.

[ayayoutuber]

my tsx K engine hit 250K miles and still runs smooth.

[chikawng]

Literally best breakdown and explanation of k engine on YouTube period.

[HimalayanKxlly]

ive never seen such an in depth engine breakdown. thank you for taking the time to go through this with us man, i understand my engine so much better

[yaroslavkrymov]

I work in IT sales for a multinational company, but love to watch your videos to brain num. Keep up the great work. They are very educational. I used to own and operate semie trucks in the oilfield in Alberta.

[theshawnvotedforhillaryrac]

This is the best video I've ever seen on YouTube

[spicyF]

Actually, Honda uses the single valve at low rpm to increase turbulence thereby promoting a more homogeneous mixture and thereby a more rapid combustion.

[leorickt.]

incredible video. i just bought a 2007 accord and this has helped me understand the engine so much more. I appreciate what you do!