today we're gonna look at the installation and measurements for the
cylinder liner in a what's leave application of the detroit sixty series
engine
condescension in particular it uses uh... it counter bore
that this leaves six into and the manufacturer has prescribed a certain
height that that liner has to sit too
for progressive for forty permissible value
for how high that liner six
to create the clamping force needed on the cylinder head to hold the liner in
its respective position during operation in the engine
so the manufacturers also weighed out a prescribed value of the thickness of the
head gasket so that when we crushed down the head gasket
that we actually crashed down on top of the liner in crete the clamping force we
need a bond that liner
while creating the ceiling capacity also on the
uh... had gasket itself
soul couple different things
we look at norman clay chur
this is the deck surface of the block
that is a mating surface to the fire deck of the cylinder head
this particular area right down here is what we call our counter board
to a series here it is our counter board
david manufacturer has to be in effect are machine guess to fit into the
lighter fluid change you can see in the adjacent soldiers
so that
whetted sitting it's correct position and it's cramped with it head on it
we're going to have our head gasket sitting here
the fire ring of our head gasket and then this meeting surface here which is
a litre per true jim
but it begins the underside of the fire deck of the cylinder head
so if we take a look at the nomenclatura related directly to the uh... what
sleeve liner itself you can see that we have
couple different seals on here
one of you seals it
going to be replaced this is one of the main cooling system privacy laws
and then we have an adjacent sealed that works in competition capacity with the
cooling system seal
so that the cooling system seal leaks
accommodation capacity steel helps baka up
e_-coli
uh... crevice we'll
price reversed on the bottom and we have an engine whales seal
which also works in combination capacity with the secondary seal so that the oil
still leads
the secondary skills helps prevent
oil from getting from the bottom and up into the cooling system into this area
so when that happens and we get the mixing of coolant and oil together
either or are destructive to the cooling system as well as to the lubrication
system
sold on the top of the lighter
play here
we have what's called truly relief
and if we look at in the block
right here
you can see that we have in the pot calling
passage that's cutting here that allows school at the floor all the way around
but if we look back at the liner
all the way around the circumference of the liner that helps absorbent
dissipates emily heat from
compression loading
as well as combustion loading at the point of ignition in the compression
ignition engine
so it's manufactures provided extra top
liner cooling relief to actually help absorb a dissipate that he
so the liner flames rate here
what we're looking at this particular measurement
passed if it into the counter board
and have a certain amount of protrusions sticking up above to create the clamping
force needed to hold that liner in its respective position
we have an apparatus it's going to actually hold our liner down and
position when we actually check that for treason and we have the tools correspond
with that procedure
is to check with the manufacturer passes to check
it is the check-in four positions all the way around the sitcom friends out b
minor counter board
in the block
food manufacturers says that it should not exceed anymore
then point three five one zero inches
if i tracked this with my dept gauge
on your are
vernier caliper
i can see
that i have
exactly what the manufacture
has prescribed
for hours for measurement
now this can also be done by taking a dialer indicator
zeroing in on the back
and then dropping it indelible
to read the value
i've chosen do use my
vernier caliper
now the next thing that we have to do is once at the counter board has been
cleaned and it can be clean with
some kroeker spot
some white ameri
or even a scotch brite pad it's important make sure that we don't drop
any debris into the bottom end of the engine
or to put a cop in there to prevent any debris from dropping into the bottom end
of the engine
once this has been cleaned appropriately and we wash it out with a little bit of
break clean
made for him to stop yelling at everybody
okay so take a look now that we've actually cleaned s
hot area with some brake cleaner remove any debris have gone in the nephews a
scotch brite pad to make sure that we do not have any
the dream here we've done it with donna checked the measurement based on
manufactured specs and we fall within specifications
for how concentric
or how equal the plane yes
waiting time we have a nine concentric plane
his when we have a difference in the back surface compared to the counter war
we can also talk about this
in relationship to what's called parallelism if it's not sitting
correctly
parallelism also relates directly to checking the integrity of brake rotors
checking four points to make sure that that brake rotors not collapse what
we're doing the same thing here checking it four points to make sure
that we don't have what's called lawyers sloping
where the lighter
leans one way
or the other
or accross the minor in major thrust area as the pistons rotating
through the movement of the crankshaft and
the up-and-down reciprocating motion
of the president
so once we know that are our counter bore is correct
that what we need to do is we need installer liner
press airliner down in the place with a whiner state for actually doing
the measurement
based on this manufacturers design
dot we take a reminder now and are lighter is lubricated
so we take our lighter that's already lubricated
then we're gonna do it right off in a mess and till we actually replaces
crevices
defibrillator
and with center liner down in cuba board
okay
okay now that we've installed the liner we're gonna take the only m tool
and set it down on top of the line
and line up the head bolts
to make sure that we have
spot
position title
got discharged manufactures use different
jewel apparatus to actually hold the liners down into position
once we get this marked down then that we have the specific tort that this
manufacturers like those
for these malts too
and to actually blocked the liner down into position
soltahr cities in the place as per
spec
firms neil young
and then we are going to use
mister rackets
to dr hardliners down in this decision
so you can see that the tool is actually driving this down into position
without any effort without using a hammer
without using a wooden block
and then
dropping it right
down the protrude usi din of the liner flange
going down into the counter bore
until we are
so after torque in the apparatus and the place what we need to do now is position
these little dogs that are on
there's three of them
money here one here
in one of the other side
we may not be able to see
this is to access
the protrude jim after we've state the liner down with the tools so we've tort
the apparatus on the manufacturing now says
to go ahead and put forty in
forty-foot pounds of pork
down on top of this plate to put the cylinder in respect where it should be
sitting
when they had splint on
so we double check it make sure that we have that
position correctly
now that still the one interviews here
there's a slight gauge
we call this a slut each because we can ride across the deck surface
sliding
this dual
to check measurements
we have a dial indicator face under their reads in half-hour increments
then reads up to
forty found
so what we're going to do here now is we're gonna set the sled each
and i'm gonna turn it so i can see the scale
okay so we're gonna take our slide each now we're going to zero the gauge on
bedecked surface
and will we see are the gauge on the deck surface now we're going to do is
we're going to read
from the decks surface to the protruding liner in the recess area of the tool
okay so upsetting the two eleven hours sitting on top of the protruding chin
when we got the gates attid zero more than a slight off onto the block area
and it showing that we have one salad distortion
so we're gonna check this in three positions here
here and on the back side
and according to manufacture or not allowed to have any more than three
thousand seven inch
and through measurement i have one foul at every position
so if we only have one fowler below manufacture specifications now one of
two things can happen because it says zero to three thousand maximum
were sitting a one were still permissible
if we have all of these the same when we checked the mall and they're all the
same at one thousand we're ok across the entire dak
if this one tends to be lower
so if the manufacturers said he'd see wrote at three thousand we had
wonder two thousand rest in the may want to bring this one out by putting a one
thousand on their knees
that liner to bring the protruding up
to a higher value sold that we have more compressibility on the liners sleeves
and it holds it in position