Engine Balance - Basic Principle

[@WalkerKlondyke]

So many wonderful noises in this one! Very memeworthy vid.

[@Trident_Euclid]

@ 0:24 Yes. Bend over please -( ͡° ͜ʖ ͡°)

[@vladimirstamenovic9418]

Finally found video that makes sence. Great job!

[@TalooshDaBoss]

I just found your playlist and damn this is great thanks for making these

[@onhawaii]

That wobble and shaking lose the screws is called: Harley Davidson technology.

[@dirtygarageguy]

LOL!

[@BobJones-qo1wp]

I’ve just found this content and it’s bloody quality!! Top work mate.

[@ralfszemzars1885]

This is great, Matt. Waiting for deeper dive in this. Thanks!

[@k1ckyscotland988]

You had more than your fair share of brain pie at school dinners,leaving heehaw for the rest of us.This explains my density,it also explains,science wise,why my 78 GL1000 is turbine smooth.

[@timdryden3778]

chug chug

[@topsykrett9171]

Hi Matt, many thanks for the videos, I've learned a lot so far. I am not sure if you read this here but i do not have a Facebook account so i'll give it a try, maybe also one of the other viewers has a clue. Every time i see a Dyno-graph i mention that peak-power and peak-torque is not at the same rpm value and i do not understand why that's the case. I would be happy if you could get into that, if you have explained it already i haven't found it now and need a hint which video i have to view. Thanks a lot and keep on going!

[@fredlewis4432]

Matt, the next time you continue this discussion explain what it means to balance an engine 50% (or any other%)

[@thomasphilyaw8593]

Why only 151 thumbs up I don't know. Personally I love these things. The counterbalancing shaft reminds of how car manufacturers use sound boxes under the driver's seat putting out a negative wave to the car's engine sound to quiet the ride.

[@naveedaka]

Awesome info as always...hats off....please make more videos on single cylinde crank...and please tell me whats balance factor for crank

[@MM-cr7dq]

Great topic Matt and explained well. Looking forward to maybe expanding on V4's, crossplane firing, triples and the mighty Honda CBX :o)

[@shaun9107]

Keep it up I love it never loose the goat LOL

[@reecelawson4718]

Matt, if you have a straight 4 aren't the primary forces balanced because 2 up 2 down? Its the secondary forces that aren't which is caused by piston moving faster at top of cylinder than it does bottom and as a result i4's need balancing shafts when the piston is at tdc is the shaft facing 180° away from it and when the piston is at bdc (the shaft has obviously moved) is the shaft still facing 180° away from the piston?

[@dirtygarageguy]

Early i4's didn't have balancers because of larger rotational mass, however with everyone making things lighter these forces become more of an issue so balancer shafts are becoming more prevalant

[@reecelawson4718]

@@dirtygarageguy cheers Matt, once again a cracking help mate.

[@ΘΑΝΑΣΗΣΤΖΕΚΟΣ]

Montage master❤️

[@danielfarmer4311]

Great work man, keep it up!!

[@kevinstreet5709]

Hi,Matt just a quickie, my bike is due an mot soon do you think l should treat it for woodworm just as a precaution or will the examiner not be testing for that, thanks, l have asked Dell but he hasn't responded as yet

[@chenderson4969]

kevin street hahahah awesome

[@markhendry1761]

Jug jug jug jug, I was actually rolling around laughing

[@GuilhermeTrojan]

nice talking about the weird curves on vibrations on the differnt cycles of the engine. but what about 2 strokes engines? are they easier to balance?

[@dirtygarageguy]

Not really. 2 stroke engines are under different forces. I.e the piston compresses the mixture on its underside, and this changes with rpm

[@ailstedt77]

What would then happen if the engine is + shaped and had one cylinder in each 4 directions firing in a rotational sequence. Would that negate them side thrusting force's or would it just make the worse?

[@dirtygarageguy]

Make them worse out they would be out of sequence - if you mean firing every 90 degrees. The problem is that even with pistons of opposite motion, the upper 180deg is faster than the bottom 180deg, and this is because of the geometry of a fixed crank and con-rod

[@ctautocambodia6095]

thanks bro

[@hamidmj7038]

hello , thanks for this awesome video . can u just give me some pdf's or books to getting better this subject . i'll be thankful

[@cristianr3712]

Funniest semi-technical video ever!

[@MediumWolf227]

So could putting a lower weight piston in an engine with a stock crank cause more vibration and end up causing damage?

[@chrisvinicombe9947]

Shaking like a shitting dog 😂😂😂😂 best laugh today

[@markbuehler1265]

Fuckin love this video!

[@DeadlyAura76]

A question I have is, I dont understand how I can go from say for eg 6k rpm, drop a gear and it more or less instantly goes to 9k rpm for eg, how the engine is able to change that speed of the piston/crank/valve train instantly and cope with it. I dont understand how it can fluctuate speed without issue so quickly.

[@dirtygarageguy]

Peak acceleration. In other max - the rod is design to with-stand the forces at peak acceleration - anything under that and the ord will deal with it

[@hotdognr12323]

Won't the pistons and rods cancel each others vibrations in inline engines with even numbers of cylinders?

[@dirtygarageguy]

No. kzbin.info/www/bejne/mpjQl2Vpr8-hfbs

[@martynclinton8092]

Great frequency… Tug tug tug tug tug

[@sleepwalker3520]

could you use magnets to increase the restance of the side forces? as in place some magnets around the case that interact with the counterweights that either increase or decrease resistance depending on where the blance is needed? Obviously will add weight but could it help?

[@dreddwailing6395]

That's exactly where it's all going in twenty years, smooth quiet electric motors

[@WikWak]

Why do some engines have an offset gudgeon pin? JE's website says it makes the engine run more quietly (also implying that theyre doing something bmw arent!?)

[@Jay_The_Cat]

Is there any chance you could do a video about the twin-crank concept? When you were talking about vibrations from the crank at 90 degrees and such, I was reminded of this piece I read a wee while ago: www.greencarcongress.com/2014/04/20140404-neander.html I'd be curious to know your opinion, plus it gives you an excuse to make another 3D printed model. 😃

[@dirtygarageguy]

Oh yes - we'll be getting to that

[@revnation1]

ladies and gentlemen , i present you .... gordan ramsey of motorcycle

[@Drummik88]

I fucking luv u mate!

[@Bikerbiker24]

Bird name is a wood pigeon 😂

[@beachboardfan9544]

How about firing order balance? You've done a couple vids on balance of the rotating assembly but never touched on how the firing order affects the balance.

[@dirtygarageguy]

Because we haven't finished with the masses yet. Adding the firing order in would just fuck everything up

[@beachboardfan9544]

👍. So 50k subs u gunna quit ur job and do this full time then?!

[@allanhughes7859]

Is the wood pigeoaney for entertainmenty value or just stuck in the f...kn treee ????????

[@deanrobert8674]

She was giving me a concern there Jimmy.

[@snafusnafu7409]

There was a lot of balancing hehehehehe here when u going to fall over hehehehehe oh I should of up an (act) in there great stuff have a pint on me hehehehe

[@Altruistic00]

I've seen some crank for single piston bike (the smaller cc ones in a moped for example) with an almost circular balancer mass on both sides of the conrod. Will that circular shape smoothens out that vibration frequency you're talking about, especially during the half stroke? www.pushrod-performance.co.uk/images/crankshaft.jpg Will a perfectly balanced crankshaft be detrimental for the torque it can produce?

[@thonyonetwo]

Tell me about harmonic balacers :)

[@dirtygarageguy]

They balance harmonically LOL

[@thonyonetwo]

@@dirtygarageguy ;)

[@thonyonetwo]

@@dirtygarageguy how about explaining the coupler curves of a slider crank then ;)

[@riddioughp]

Do you mean Orville???

[@apsestasis]

In b4 someone makes "WOBLEWOBLEBANGWOBLEWOBLEBANG" remix

[@philipfreeman72]

BMW boxer engines balance . Love joy peace wealth & abundance , prep to meet your long lost relatives .

[@ryanbernard6550]

Moar powa baby

[@danielfarmer4311]

Jug Jug Jug!!! Piston blah blah JUG JUG!!!!

[@adivarso8175]

1

[@informediatech-bruno5766]

why there is a sheep in the video is to balance the backfire???

[@smokerjim]

As I understand your explanation, every action has an equal and opposite reaction...or your engine is going to shake like a shitting dog

[@informediatech-bruno5766]

i can give you a pound for you to instal a small chinese eletric motor rather than rotate it by hand

[@beachboardfan9544]

Yay for electric motors! Dont have to deal with any of this shit!

[@SpartanMJO12]

But steel's heavier than feathers

[@ihateexcessivelylongandpoi4490]

A tonne of steel weights the same as a tonne of feathers.

[@liam-lh2nm]

bandr one stone and a stone is the same ...

[@SpartanMJO12]

That's cheating, look at how many feathers there are

[@liam-lh2nm]

Hierophant it's not cheating 😂😂

[@SpartanMJO12]

Ok real talk it's a joke from Limmy, and whilst they might have the same mass, feathers will actually weigh less than steel, as the decreased density will have the centre of gravity of the feathers slightly further away from the earth, therefore reducing the weight by a miniscule amount.

[@montinaladine3264]

1 minute and 8 seconds, out of here - sorry, too crude. Yes I say the F word to myself sometimes each day but to say it often in a technical video is very unprofessional and disrespectful. Plus that NT sticker on the white board is highly offensive. But looks like I'm in the minority.

[@dirtygarageguy]

Yes you are.