today we are going to be working on my Ryobi 4 cycle model s430 weed wacker
just to give you a break down of what happened here is I was using this machine and it just stopped working on me
something tells me it might be the timing belt that let go on this machine
so first thing I'm going to do is we're gonna remove the cover to the carburetor
simply pinch on the bottom here
and it pops up, remove this back screw, and this cover should pop up
and out
once you get the top cover off
your gonna see the timing belt and I can already see
that right in this area here
it's damaged
see the damage right there
and see how it fits
its loose as hell
I can pretty much just pop this right off
its telling me that the timing on this is just messed up
so the valves and everything is just not timed correctly
hopefully
this engine is still okay
look at that
the belt is junk
so here's the new belt
now we gotta get it back in there
try to
somehow align this all up properly
we're gonna have to take these screws out of here
and those are t20 screw heads
there should be four of them
we're also gonna disconnect these wires here
and we might have to take off the throttle cable
so I just tied the string off to the side here, to get this starter off
once we get this removed from the housing
we're gonna just use a screwdriver
put it between the housing and the engine
and
what I like to call the stator
cooling fins whatever you want to call it
and then your gonna turn it in the direction that says off
so use a monkey wrench big pliers what ever you got
and it should just turn right off of there
you got your clutch, washer, and starter
so your left with the stator
should have did this in the beginning but I'm going to do it now
take the spark plug off
alright now we got to figure out a way to get this out
without a special tool
alright
so
if you work it a little bit from the inside here
its the best way to go
right here against the fins and you just work it work it and she'll finally fall right out of there
now the problem here is getting this bearing out
I don't have a bearing puller and I don't think a bearing puller would work on this thing
I am going to attempt to pop the crankshaft from this side
and get that bearing to come with it
thats the plan if I ruin this engine so be it
can you see the bearing coming out with the shaft
thats the idea, got to pop that right out of there
and their is the shaft
with the bearing on it
sweet jesus, thats the only way to do it
their is a small seal in there, be careful with that seal
you don't want to ruin it so you don't have to replace it
we're just going to take some brake clean
just to clean this all out
bearing feels okay
alright
now
here is the belt
and that belt actually rides on that gear
now to get this all back in is going to be the tricky part
now my main concern at this moment
is just to get this back in place
so I'm just going to use the hammer to tap this in
okay now we got to align the shaft up
to the crank
or the piston
so we're going to tap this in
check to see if its in
'its going in okay
we're going to tap this in a little bit more
alright I'll use a socket
that way I'll hit it on all sides at the same time
alright
what you want to do is get this bearing flush with the mount here
or the housing
so that looks good I'm going to go ahead and give it a couple more taps
just to make sure
all the way around
alright so their you go she's flush with the housing
now we'll get the piston back into place, you want to support the shaft from underneath
alright so you want to do that till its flush with the crankshaft itself
and this bearing like I told you before should be flushed with the housing
so that looks good, she's in
she turns fine
alright now
I'm just gonna
squirt this down real quick just to clean incase their is anything in there that I might have missed or some filings or something
alright she's nice and clean
I'm satisfied with that
next thing we're going to do is we're going to open up the top cover to the valves
here is your exhaust valve
and this is your intake valve
alright let's get this installed
now their is a piece here
your gonna line up with the crankshaft
right there
so you line those two up
should feel it
press it down
I'm not going to put this all together right now cause we have to find top dead center
stick the screwdriver in here and feel for the piston
piston is coming up
alright so right in that area the piston is up top
the circle here and a circle here
now we're gonna have to match those up if I'm not mistaken
match it up to that one
or somewhat close
so they got to match up some what
then we get this on
get it started then we'll kinda turn it to get it in
and their you go
alright so its on
cover back on
so I got that at about a thousand of an inch from the stator and the coil pack
i don't know the exact spec but we should be good with one thousands of an inch
this washer
sleeve
now put the starter in
now we put this on
and this piece gets screwed back on
which is the clutch
man thats hard, so we're gonna have to hold that
stator in place
using a screwdriver
tighten it down
I don't know the torque on this and I don't have any way to torque this anyways
so I'm just going to tighten it down till its snug
or a little bit more than snug
their we go
wiring back
and crap I forgot to put the negative wire in there
son of a gun
I'm going to take that back out
just make sure this is good and tight
before I move that so hopefully this won't move on me
so thats in place
put this back where it belongs
put the old spark plug back in
about twenty ft lbs on the spark plug, should be good to go
wire up
now take this off
slide it in
make sure this is in right
okay
now I'm going to put this through the handle
tie a knot in it
now to make sure this don't come out take the torch
and heat this up or melt it
just the tip
kinda like welds it to itself
there you go
okay just snug those down
let me just check to make sure this works
there we go
now I'm going to get these in, the housing to the engine
okay
now hook up the wiring to the kill switch
plug in okay
alright so throttle cable is in
alright now we got to get oil in this thing
so you take your oil plug out
or oil filler cover out whatever you want to call it, its actually a dip stick
I use 20w50 synthetic inside of this
it only take a couple of ounces, I don't know the exact amount, I only put a little bit in there and obviously I over filled it so what I'm going to do is just tip it back
and get more out of there, its easy to do
alright she's good, she's at the top mark
so we're going to close her up
alright now we got to get the fuel tank back on
you just want to snug these down, one two three bolts
don't want to over tighten them and crack the fuel tank
not putting the covers on at this moment, what I'm going to do is see if this thing starts up
of course to do that i have to hook these back in
let's get some fuel in there
just enough to get it started
double check everything, make sure its all hooked up
choke it out
let's see what happens
basically just put your covers back on
and she's done, I don't think you guys need to see me do that
the only other thing you might have to do is play with the idle adjustment screw
just to get it to idle right cause it might be off since you got this fixed and what not
so if you do the adjustment screw is right here
turn it down for more idle turn it up for less
and what not
any other questions, comments, constructive criticism, you know what to do, put it down below
and I'll try to get to em
as soon as I can
alright everybody take care, god bless
I'll catch you'all later