centrifugal clutch in slow motion i can do that
that's an awesome
viewer Request
and i just so happen to have two engines
lying around that have centrifugal clutches one is
this two cycle rovin engine which is for a 1:5 scale rc car that i don't have
and this is a two cycle engine the second one is the turbo diesel go-kart
so this is going to be a good comparison between two different types of engines
the first type of clutch i'm gonna show in action is gonna be the most common
type of centrifugal clutch that i know of
the same clutch that the turbo diesel go kart uses
i'm gonna open this up and show you what's inside so you can get an idea how
it works this is the bell housing the sprocket
I took this bell housing off and this retainer plate this retainer plate holds
this spring which holds all of these shoes
toward the center of this clutch if we take the spring off
you can see these shoes just fall right out
but this spring i don't i can't even open the spring i mean this has got to
be like 100 pounds the amount of force that these shoes are
pushing outward overcomes the pull of this spring
so that gives you an idea how much force is created and that's how these shoes
come in contact with the bell housing and transfer the power
from the shaft of the engine to the sprocket to the chain
to the axle to the road
now that you know the idea behind how a centrifugal
clutch works the only thing i have to do now is set
it up to make it visual so we can see what's going on
inside of that clutch when it's working
[Music] I got this clutch from amazon
I left a link in the description below,
it was very good for the price
I think I paid 20-30 dollars
your about to see
just how good it really is for the price
[Elevator MUSIC]
i'm all done cutting my pieces
and i just want to show you what i have here
i can't help but think this looks a lot like something from mad max
but this is what happens when you either don't have enough time or don't have the
right equipment or both this is how things look functional but
not necessarily beautiful
okay clutch is all done looks fantastic
let's see if it actually works i got the clutch all set up
on the kohler diesel engine and one thing about this type of diesel engine
you can hold it full throttle for practically eternity
this engine doesn't care if something happened if the clutch broke if the
clutch is overheating it's a torque monster and it loves load
so it's probably just gonna keep on going
no matter what let's start it up go full throttle and
see what happens
let me start this up and show you what
diesel power is all about i'm just gonna floor it hold it there
hold the brake and let the clutch destroy itself
while rolling the high-speed camera
[Music]
I would give the name of the song but
i mixed this song from various pieces
[Music]
if that didn't give you a good idea for how a centrifugal clutch works
i don't know what will because that right there was power converted into
friction that's for sure told you diesel was no
joke tearing up clutches breaking gearboxes
torque does not play that went really well the
only thing i didn't like is that we couldn't really see the
spring at work even though the whole clutch exploded and that was really cool
i don't think we could really see what the pads were doing now we're going to
move into something that doesn't have that much torque but has a lot of rpm
and this time the clutch is nice and open and we're able to see the spring
and what it's doing with the shoes this clutch works off of the same
principle as that previous clutch but it's on a two-cycle engine only has
two shoes and one spring and operates at a much higher rpm the
way i set this up is really simple i built this ring which represents the
bell housing of a typical clutch and the bell housing of the clutch is
normally connected to the drivetrain now it's time to see visually how it
looks when it works it's actually quite difficult to crank
that tells me that uh this thing's gonna sound pretty wicked once it's running
i'm told by the people at engine diy that
this engine is basically the 2jz of 29cc engines this thing's supposed to
put out like a whole bunch of power 2jz baby and i don't know what these
tanks are these are some sort of like they call them supercharger
this ain't no SUPERCHARGER!
I dont really know i didn't have time to research it but if
you know what these two tanks are for let me know in the comments below
because i have no idea here we go i'm gonna run the engine on
gasoline go full throttle all the way and hope
something crazy happens
hit me in the face damn that hurt slapped me in the face and hit me in the
hand and got my finger that really hurt that was painful
I almost cried
[LOUD Music]
wow
all right well it looks like uh somewhere along the line
the spring came off we can definitely see how the
pads are contacting the bell housing now if you didn't get a good idea with the
high speed footage well there you go got a good idea now
so
i can get that spring back in there but that was a really
interesting run to say the least all of this brake dust
on the table and that tells me that the type of
pads or i should say the type of shoes that they use
in here are some type of organic compound they're not the same as the
regular centrifugal clutches which was really sad is that
That they still didn't send Me the RC CAR!
it got so hot and there was so much vibration it broke my beautiful welds
but there was so much heat that was created from all of that friction
that it not only melted everything here but it also
weakened the spring and still kind of hot to the point where you can see
the little hooks on the spring they actually opened up
and released from the shoes and uh yeah that's what happened
and the most interesting takeaway from this is when the welds on the ring broke
it gave you a really good idea for just how much force is being exerted
on those shoes because as the crankshaft was spinning
the ring was ovaling out with the rotation of the clutch and that gives
you a really good idea for just how much
force that is and that is the core mechanism of action
and how these centrifugal clutches work in the first place
and the other thing i took away from this test is that this is definitely a
tough little engine so i'm gonna put a link in the
description below to this engine just in case you're interested it seemed
pretty powerful for its size but one thing is
i still cannot figure out what these two tanks do
if you know let me know in the comments below
i don't know what these are they're calling them some type of supercharger
tanks they don't look like a supercharger to
me but they must do something because they're here
tell me what you think in the comments below don't forget to share your ideas
because obviously i'm listening i make them happen
that's all i got for you today in this episode see you next time
adios rofun power 29 cc