How to bleed Rear Drum Brakes
How To Bleed Drum Brakes on your Car
0:00 / 0:00
Quality:
Sharing buttons:
brought to you by 1a auto calm your
source for quality replacement parts and
the best service on the Internet
hi I'm Mike Greene I'm one of the owners
of warning Auto I want to help you save
time and money repairing and maintaining
your vehicle I'm going to use my 20-plus
years experience restoring and repairing
cars and trucks like this to show you
the correct way to install parts from 1a
auto calm the right parts installed
correctly that's going to save you time
and money thank you and enjoy the video
in this video we're showing you how to
bleed drum brakes you're going to need
to bleed the brakes if you've done any
work on the brakes themselves or if you
feel like your car's is not providing
good stopping power or pulling left or
right during braking bleeding the brakes
can sometimes cure some of those issues
our subject vehicles of 59 Pontiac
Bonneville it has manual adjust brakes
which are different than most newer cars
which adjust automatically just a note
and then you'll need a wrench
anywhere from quarter inch to 3/8 or
seven millimeter to nine millimeter
depending on your application latex or
rubber hose in a plastic bottle and
assistant to help you out and you'll
want to probably raise and secure the
car although not all vehicles will you
have to raise to do the brake bleeding
on brakes need to be assembled all
rotors and drums and pads and everything
need to be on in our video we do have
the tires off the vehicle you do not
have to remove your tires to bleed your
brakes so the first step in bleeding
your brakes is and this car is an old 59
Pontiac so what we're doing right now is
we're opening up the master cylinder and
adding brake fluid now you want to fill
the master cylinder full and also you're
going to want to stop and check it from
time to time while you're bleeding the
brakes usually we do one wheel and then
we'll check the master cylinder and then
do the next wheel etc etc okay so here
we listen old carts so use dot three
hydraulic brake fluid
so you have a helper in the vehicle
pressing the brake for you dear old dad
in this one okay so now we're in behind
the brake drum here and this is the
bleeder valve so before you bleed what
you want to make sure is you get these
loose and it may require you to put some
penetrating oil on there or something
these are brand new so they'll be loose
enough but you want to make sure you
keep those loose because sometimes they
will break off and then you'll need to
replace your wheel cylinders or brake
calipers or whatever anyways okay you're
going to want to put your wrench on then
what I have is this kind of handy
bleeders mate you can see the hose when
end of the hose goes down into the fluid
and the other end of the hose I'm going
to connect that bleeder valve okay so
I've got my wrench on the bleeder valve
I'm going to take my hose okay I'm going
to try and keep this or you can kind of
see it put my hose on the bleeder valve
now this is somewhat the environmentally
correct and clean way to do it we're
going to hopefully not spill any brake
fluid all over the place you know the
other thing you can do is just put a rag
or a catch pin underneath and bleed away
so what I'm going to do when we get this
bottle secured okay and you can watch
right here I'm going to tell my guy in
the car to hit the brakes and then I'm
going to open up the valve and you'll
see all the air bleed into the fleet
into the bottle so all right hit the
brakes
okay - all right let off so basically
what I'm doing is a series of hit the
brakes and let off which forces the
fluid into the wines and there's
actually we just redid the total brakes
on this so there's no food in the wines
so it's actually going to take it a
little bit to just pump the brakes a few
times as you can get anything all right
hit the brakes there goes bubble butt
off brake let off and so I'm saying hit
the brake so hit the brakes
okay and then I'm tightening it and then
I'm telling them now let off okay
can you hit the brakes here I'm not
hearing anything we need to check the
fluid so we're going to now check the
fluid because we may have drained all
the fluid from the master cylinder just
filling the wine okay so we did one
wheel until we had no bubbles so now we
move to the other side we're going to
repeat the procedure we'll put our red
Sean
okay brakes and you see all those
bubbles here um - butt off brakes butt
off brakes blood off okay so here I am
in the rear of the car and this is the
back of the brake Trump now this is an
old car so actually you can see here
this is the bleeder it doesn't even have
a tip on it it's old style just has a
hole in it probably the original
cylinder for the car so I'm just going
to do it the old way I'm just going to
use a rag and kind of catch the fluid
okay brakes okay let off okay so we're
actually having an issue here with this
rear brake and just to show you this is
the bleeder
and kind of putting a pick into it just
to make sure it does feel like it's got
some stuff so I just took the the
bleeder all the way out and what you can
do is just take a drill bit it's a
little bit smaller and kind of run it
through there and I'm just going to put
the pick into the wheel cylinder as well
make sure there's no stuff but I did get
a little bit of fluid extra fluid came
out so that can happen so if you if
you're bleeding for a while and you're
not getting any fluid out it's probably
a clogged bleeder or some stuff has
gotten into your wheel cylinder okay so
on this car like I said we had done work
to all four breaks so we bled them
repeatedly
this car has manually adjusting brakes
so we did find it we had to kind of work
the brakes a little bit
make sure the adjusters were tight and
then work the brakes again so if you
have a very old car that has manually
adjusting brakes keep that in mind what
you'll want to do is pump the pedal make
sure the brakes are working then adjust
them and while you're adjusting it spin
the drum a little bit and basically
adjust it until the brakes give a little
resistance then pump the brakes again
then spin the drum again and like I said
adjust it until the drum gives a little
resistance so now we're just going to
top off our fluid and we're putting on
our wheels and tires and wrong road test
okay so you've done your brake work and
you blood the brakes and you're getting
ready to road test okay obviously the
most dangerous part of what you're doing
basically first thing to do is start car
apply the brakes put it in gear make
sure the brakes just hold the car in
gear okay if they hold the garden here
that's a good sign then I would go maybe
going five miles an hour put the brakes
on make sure they stop the car
yeah and then ten miles an hour and work
your way up until you're comfortable
that the brakes are working well enough
then go road test it when you road test
it you want to feel for does the car
stop straight you know does it pull the
one side or the other if it pulls you
may want to look at bleeding the brakes
again and also keep in mind that the
pulling could be something other than
the brakes so that's it we hope you
helped me helped you out thank you also
before your road test make sure you
press on your brake pedal and you have a
good solid pedal it doesn't go all the
way to the floor or anything like that
and then after you press down hard
move your car and just make sure you're
not leaking brake fluid anywhere under
the car bought to you by ww1 Auto calm
your source for quality replacement
parts and the best service on the
Internet feel free to call us toll free
888 eight four four three three ninety
three the company that's here for you on
the internet and in person thank you
