Installation of cylinder liners
Today we`re gonna look at the installation 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 bored that this leaves six into and the manufacturer has prescribed a certain height that liner has to sit too for progressive 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,
installation measurements for the cylinder liner
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 crate the clamping force we need a bond that liner while creating the ceiling capacity also on the had gasket itself soul couple different things we look at norman clay chur
Engine block preliminary checks
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 cramped with it head on it
we`re poing to have our head gasket sitting here the fire ring of our head gasket and then this meeting surface here which is a liter per true jim but it begins the underside of the fire deck of cylinder head so if we take a look at the nomenclature related directly to the what sleeve liner itself you can see that we have couple different seals on here 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 crevice we`ll price reversed on the bottom and we have an engine whales
seal are destructive to the cooling system as well as to the lubrication sold on the top of the lighter 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
Check the cylinder liner
we look back at the liner all the way around the cricumerence of the liner that helps absorbent 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 dissipacte that he so the liner flames rate here what we’re looking at this particular measurement passed if it into to the counter board and l 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 on 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 manufacture passes to check it is the check in four position all the way around the sitcom friend out b minor counter board in the block
food manufacturers says that it should not exceed any more then point there five one zero inche ؛ 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.
cleaned the counter board
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.
so take a look now actually cleaned s hot area 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 with in specification 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 brake rotors not collapse what we’re doing the same thing here checking it four point to make sure that we don’t have what’s called lawyers sloping where the lighter leans one way or the other or across the major thrust area as the pistons rotating through the movement of the crank shaft 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.
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, we take in liner and with center liner down in counter board.
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 and taiden in the tort???)title got discharged manufactures use different jewel apparatus to actually hold the liner 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.
So tortoise cities in the place as per spec firms neil young and then place as per spec firms neil young and then we are going to use mister rackets to drive hardliners down in the position.
so you can see that the toll is actually driving this down into position whit out any effort with out using a hammer with out using a wooden block and then dropping it right down the protrude in of the liner flange going down into the counter bored until we are ba them
so after torque in the apparatus and the place what we need to do now is position these little dogs that are on the tool, there’s three of them one here, one here, in one of the other side,
we may not be able to see this is to access the protrude in after we’ve state the liner down with the tools, so we’ve trot the apparatus on the manufacturing how says to go ahead and put forty in forty – foot pounds of took down on top of this plate to put the cylinder in respect where it should be sitting when that 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 as light 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 read in half hour increments then reads up to do here now is were gonna a take our slide on bedecked surface now we’re going to read from the decks surface to the tool protruding liner in the recess of the tool.
Inserting the cylinder liner
okay so upsetting the two eleven hours sitting on top of the protruding in 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 position 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 fowler be low manufacture specifications now one of tow things can happen because it says zero to three thousand maximum were sitting 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 same at one thousand we’re ok across the entire dok.
If this on tends to be lower so if the manufactures said he’d see wrote at three thousand, we had wonder tow thousand rest in the may want to bring this one out by putting a one thousand 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.
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