master teach setting fixture
ford i'll bore gages
so what we need to do now is we need to
sat argyle board each
to fit the nastier
which is what we set
this solar at which we measured now at five inches
one hundred and seventeen th out
on the scale here the gauge point sealed it with the scale that we looked at an
earlier
we need to find
the correct dimension
at the five inches
in this deal here says five inches to five point three seven five so those of
the gauge point two we need to use which is beach point number seven
engage point number four
sulfite look at the box
on that as follows
each point seven
and
in fort
then we're gonna take a little too here
take it apart
him we're going to put in a bar
gauge point seven
into are dialed board each
him with the little supplied ranch were discovered lucked out up so it maintains
accuracy
and then we're gonna take number forty two black which is the adjustable
portion
which gets us to decide if they were trying to establish
so now
taking a look
at the master gauge fixture
we know that they measurement is five inches
one hundred and seventeen th
this stage black here shows
that it meets five inches
too little live when we look at some of the tooling
this one is five inches
and this one
is actually
two inches
but it's visa
gauges here
they're making up the
difference in the measuring between
the master gauge fixture
and the coyote work each day we're trying to set up
to measure the cylinder
so we're going to use the five-inch because we know that the manufacturers
boris becuz
five inches one hundred and twenty two thousand
and we've actually established that this cylinder dimension
is five inches one hundred and seventeen th out
so if we set the gauge at five inches one hundred and seventeen valley can
read opt to and hopefully not beyond
the five inches one hundred and twenty two
so now setting at the
five-inch block in place
we've dialed on this scale one hundred and seventeen thousand seven inj
and we use a very large mnc a magnifying glass and here because this actually
reads in
half-hour increments
throughout the scale so we can pinpoint it right down to a half hour of value
based on manufactures specifications or required settings through measurement
so now i'm going to take the
um...
assembly that i've put together with the seven-inch gauge block at the four-inch
gauge block
and we've already set the measurement of five inches one hundred seventeen th our
on this
gage also weekend pivot this
allows the involved
right here to move over center of the jewel so we wanted to be right in the
very medal
so they were reading packard lead on setting the to la
to get the precision measurement were looking for
sold when i said this and
i'm gonna take the play out of the gauge
when they make sure that it's sitting square across the face
and then i'm going to make an adjustment
and lock the tool
water tools
put it back in take the play out of it
and the tool should be sitting at now
right on zero
so now the tool is set up
to read
five inches
one hundred seventeen thousand and beyond on the scale
now the tool itself
the incumbents on the tool
aren half-hour increments
so each line that we see indicates
how close well aware
so to lines would equal one dollar where four lines of equal to salve where
three lines were equal one and a half hour where
so now we're going to do is now that we've established the dimensional uh...
value on the dial board each now we're gonna take a look at it in the cylinder
and we like to do is put the gauge in
and then collapse it so that we can actually put it down into the bore
and i'm going to start with this one
and roughly about made
so what we want to do is we're checking this is we don't want to be off center
like this we want to be ninety degrees parallel to the cylinder liners
this allows
i was to read accurately across the beach
so taking a look at this now we want a rocket into the positive in the naked
measurement
and when it stops
noting that we read ninety degrees
we can read two one two three four increments on that scale
which is two thousand clearance
we've established that the measurement is
five inches one hundred and seventeen val
prostitutes al is now one five inches one hundred nineteen val
still falling within manufactures facts of five inches one hundred and twenty
two thousand
so we need to do is we need to travel down to the bottom of this monring
travel
check the dimension
we have three derek
traveler tipping the key is sold at the beach does not marked the bore
and then again to where the manufacturer says the measure
and we see here that we have four on the scale also
that is one dimension
okay so we had
fourth hour
or four increments which is to doubt three incumbents being one-and-a-half l
and four increments
so we have equal amount of where the top
equal amount of where the bottom and nominal where in the middle of filming
travel which is typical of all operation of cylinders
so now we're gonna do
it's going to turn it in ninety degrees and the reason that we do that is
because
the cylinder in the engine if the piston is moving in this direction
we're gonna wear across the street surfaces
this is the major and minor thrust area
this area front to back is where we also get wherein the cylinder
from when we press the clock to and we rev the engine o begin yours in the
crankshaft tend to move back enforced during operation that causes the piston
to move back and forth which causes the cylinder where in this direction
software to take a look at it how it's wearing it's starting to wear like this
which is a decade shea
we call this dimension out of round
that paper
is the distance there is the difference between the top measurement
and the bottom measurement across two planes
that difference between the top of the bottom is our paper
the difference between top middle bottom
on one absence
top middle bottom on the other ericsson's
the difference between those two measurements desire
around measurement
both their support of to specification and requirements by manufactures for
permissible values
so if we go ahead at week checked this dimension now
which is two thousand war
and
four which is to sell
the congress direction
we only have two thousand overall
difference between top to bottom
so no noticeable difference
the other playing we had a slight difference between
the top and then the top of the bottom in the middle
soul that's also good indication of a technician if he didn't work disorders
wake up tomorrow
that the position that creates the most amount of where it would be from
movement back and forth in the board
relative to what we measured this would be
the crack position that's only reinstalled were removed
so when we calculate these measurements
we need to check it top middle bottom
treated average
that week turnip
on the second plane measure top middle bottom
and get the average that distance again or the difference between
the accidents average and be axons average bizarre out around
the difference between
the copy b average
and the distance between the bottom maybe average
is art paper sold the distance from here to here
which shows back in this order
so that's that
fumes of the dial borg age them after d trickster
and how we're going about establishing correct measurements in the cylinder
alive