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Download "Overhaul of Main Engine Fuel Injector"

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Video tags
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Video tags

main
engine
fuel
injector
injection
valve
overhaul
dismantling
assembling
assembly
dismantle
pressure
test
two
stroke
Merchant
ship
vessel
special
tool
hydraulic
jack
maersk
life
at
sea
how
to
shim
adjust
workshop
lap
lapping
seat
spring
spindle
guide
needle
atomizer
atomiser
foot
wear
backup
ring
o-ring
thrust
pipe
non
return
union
copper
slip
Subtitles
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Subtitles

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  • ruRussian
Download
00:00:00
hello everyone I uh engine car SRI
00:00:02
Krishna and uh today we are going to
00:00:05
show you about how to overall fuel
00:00:08
injector so let's
00:00:12
start this is basically the main engine
00:00:15
fuel injector which we are going to
00:00:17
demonstrate
00:00:20
today Handle With Care need to be hold
00:00:25
it from here from the top area so that
00:00:27
it will not slip and will not fall and
00:00:30
should be having a
00:00:31
tight so for keeping this we need to
00:00:36
invert it
00:00:38
and lock it in these Loops so the
00:00:43
hole this hole must be opposite
00:00:46
direction opposite
00:00:48
side so let's
00:00:58
SC
00:01:36
as you can see the pressure is rising so
00:01:39
so we have made the setup ready we have
00:01:41
pressurized it to 30 bar and now we are
00:01:44
going to open the
00:01:53
injector so by a little bit of heat we
00:01:57
can
00:01:58
operate
00:02:00
just Lo
00:02:14
it so now we are going to release the
00:02:18
pressure
00:02:28
yes
00:02:43
so now our injector is ready to be
00:02:58
REM
00:03:27
so this is the head of injector this is
00:03:30
the non- return return
00:03:32
Val this spindle
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pipe these are the
00:03:40
disc
00:03:43
shim is the
00:03:47
spring this is the
00:03:52
foot this is the spindle
00:03:55
guide so now we are going to disassemble
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the spindle guide guide and uh mainly we
00:04:02
are going to disassemble this uh
00:04:04
automizer so for disassembling this we
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have a special tool let's go
00:04:13
through so the first one we need to put
00:04:16
is this
00:04:25
one
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so before putting the half sleeves we
00:04:31
need to check this pin
00:04:32
first so it must be covering the
00:04:38
pin okay then we have to put this
00:04:47
groove and
00:04:49
finally put the
00:04:53
nut
00:04:55
now we just need to tight them both
00:04:59
holding one and diting another this can
00:05:02
remove the
00:05:04
atomizer I'll show
00:05:17
you so there will be a jerk which make
00:05:21
this free this is
00:05:23
the warning that uh the atomizer has
00:05:27
been already
00:05:28
removed
00:05:31
slowly we are going to remove
00:05:51
everything and the automizer is
00:05:55
remove
00:05:58
so
00:06:02
while taking out make sure that
00:06:05
the cut off well this part is very s
00:06:10
sensitive so not a single tent can uh
00:06:13
take place over here now we are going to
00:06:16
disassemble this uh cut off piece from
00:06:19
the thrust St so from this area so in
00:06:23
order to do that we need to lock
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it
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this part is the SP spindle
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guide cut off
00:07:04
shaft
00:07:13
so
00:07:15
so nozle is removed first then the
00:07:18
spindle guide is holded and uh this part
00:07:22
is banked by uh Teflon or soft material
00:07:25
and they are removed step by
00:07:28
step
00:07:29
so this is totally dis disassembled as
00:07:33
we can see but now we are going to
00:07:35
assemble it so for assembly the first
00:07:38
part we remove we are going to install
00:07:41
that first this is the nozel so as you
00:07:46
can see there is a marking a hole here
00:07:50
which we have to match with this hole so
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for doing
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that we keep it
00:07:58
manually
00:08:00
and then hit
00:08:05
slightly now we can see the alignments
00:08:09
are okay it should not be tilted or else
00:08:12
it can be going vertically and can be
00:08:24
damaged now we are we have to invert it
00:08:27
one by one after cleaning this it should
00:08:31
be made sure that uh the surface is
00:08:33
fully clean no dust particle nothing
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should be there or else the surface is
00:08:37
going to
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damage and again need to be reminded
00:08:42
that this part should not be damaged or
00:08:51
scratched
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then
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so our uh spindle guide is ready to be
00:09:10
attached to the
00:09:13
injector so now we have to disassemble
00:09:16
our non- return Val so for doing
00:09:20
this we have to make some amendments in
00:09:23
this we we need to change the setting of
00:09:26
the
00:09:27
height let's do it
00:09:52
first we put the
00:09:56
cylinder in that we have to put the non-
00:09:58
Bel
00:10:00
and at last we need to put this so make
00:10:04
sure the alignment
00:10:07
is
00:10:12
right in the
00:10:18
center so for more perfect alignment we
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will bring it
00:10:28
down
00:10:45
okay so now we are going to press it up
00:10:49
to the Bell is
00:10:58
not
00:11:27
what
00:11:39
we need to inspect this them all to see
00:11:42
exactly no crack should be there all the
00:11:45
part should be correct
00:11:57
ordered
00:12:02
for non- return Val lapping Arrangement
00:12:05
it can only be happened when uh it is
00:12:07
already
00:12:08
disassembled so this part for this part
00:12:11
specific for this part in case if it is
00:12:14
already disassembled then only we can La
00:12:25
ption let lock
00:12:27
it
00:12:29
with the lapping tool buz
00:12:33
out well and uh this lapping portion we
00:12:37
are going to show you I prefer it that
00:12:40
after assembly only it is better to lap
00:12:43
because the there is a arrangement for
00:12:46
holding this lap
00:12:51
it in this case I prefer it
00:12:57
better
00:13:04
[Music]
00:13:12
so we need to left this part for the
00:13:15
proper sitting Arrangement so for
00:13:17
lapping we have this special tool uh
00:13:21
make sure it's like inverted bulge in
00:13:23
like a curvature
00:13:27
mirror insert it
00:13:33
but I have already left and made it
00:13:35
prepared so both the ends need to be
00:13:56
laed so this is the B body and this is
00:14:00
the sitting arrangement of this uh fuel
00:14:02
injector so uh the idea is to La this
00:14:06
person so that there must completely no
00:14:10
leakage chance should be there to
00:14:14
gas so in order to do that first we will
00:14:17
put this tool just because we are
00:14:21
putting this because if you want put it
00:14:23
can go this other way so for our
00:14:27
protection we put
00:14:31
this Above
00:14:33
This do it nicely no problem before
00:14:36
scenario and this one is after scenario
00:14:39
you can see and feel the smoothness of
00:14:42
both the ends so this can make a better
00:14:46
ceiling as compared to this one okay so
00:14:49
now we are going to start with the
00:14:51
assembly
00:14:53
program first we will
00:14:56
take a body
00:14:59
and in this the spindle guide is the
00:15:02
first one to be
00:15:05
put here before putting this I like to
00:15:09
put I prefer to put
00:15:12
this foot just in uh just for making it
00:15:16
easy process I prefer it's my personal
00:15:18
you can put later also but it won't fit
00:15:20
good or not that is a question it takes
00:15:23
time so just in order to save the time
00:15:25
later we need to put and here we can see
00:15:28
there is a
00:15:30
Groove which has a locking Arrangement
00:15:33
over here somewhere so we need to get it
00:15:36
and lock it I'll show you
00:15:38
how tilt it little bit not like this
00:15:42
because if it put like this it can fall
00:15:46
by gravity so just a little bit
00:15:50
tilted and also good for protection goes
00:15:54
smoothly instead of rough inserting
00:15:59
now this uh nozle we can see it's moving
00:16:04
moving that means it is not good that
00:16:07
means the groups are not set well so we
00:16:10
will just simply rotate it little bit
00:16:13
and fill it it will come down now there
00:16:15
is no movement no movement this is okay
00:16:20
this should be the way so this is the
00:16:24
spring I take a reference of this new
00:16:27
spring
00:16:29
check the dimension instead of measuring
00:16:31
it all the time I check the dimension by
00:16:34
the new spring okay so after comparing the
00:16:38
Springs we need to inspect it from all
00:16:41
the aspect that it should not be having
00:16:42
any crack it should not be
00:16:45
broken so after that we have to measure
00:16:54
them so a slight difference can be
00:16:57
tolerated but if the difference
00:17:00
comes a big difference comes in the size
00:17:03
of the spring that means we need to
00:17:04
change the spring because slight
00:17:07
difference of the height me different a
00:17:11
lot of difference in the tension force
00:17:13
of the spring so this tension force uh
00:17:16
suppose the spring gets smaller in that
00:17:18
case the valve will open with low
00:17:21
pressure
00:17:22
itself next component
00:17:25
is in the spring we have the same of
00:17:29
this
00:17:31
uh
00:17:33
pipe it has the
00:17:35
dis so just for the reference I show
00:17:41
you the disc has one dis has 25 bar
00:17:46
pressure like if we insert one dis it
00:17:49
will increase the pressure by 25 bar and
00:17:53
uh maximum
00:17:56
five 5 d
00:17:59
are allowed to put above that that means
00:18:02
there is something problem with the
00:18:04
spring so now let's take the arrangement
00:18:08
to our
00:18:10
injector f it little
00:18:14
bit
00:18:15
again I
00:18:17
put four streams or
00:18:20
disc in the
00:18:25
pipe put the spring
00:18:29
slowly put
00:18:33
it inside the fuel
00:18:37
injector now the next is the non- return
00:18:40
value so we will put
00:18:43
it
00:18:48
easy so it has to be going
00:18:54
inside
00:18:56
so uh this assembly we are going to put
00:18:59
the orang just in order to make it more
00:19:02
good sealed properly so first one first
00:19:06
one is the wear cre we going to
00:19:13
put
00:19:17
so later is the
00:19:24
one and make sure that these both sides
00:19:30
are not should be like opposite side
00:19:34
this lines should be opposite in order
00:19:37
to make it more good seiling uh in order
00:19:40
to give more good seiling
00:19:42
effect so now we have this scoring we
00:19:45
will
00:19:46
put after applying the GRE I have
00:19:49
already
00:19:57
applied
00:20:00
okay and then at last we will put this
00:20:05
ston
00:20:10
oring so after doing all I just put the
00:20:14
copper SE for better uh greasing
00:20:19
purpose
00:20:21
then there is a pin and there is a hole
00:20:25
so we need to match them first this back
00:20:28
ring need to be taken special care of so
00:20:32
we need what I'm going to do is I just
00:20:34
going to press it with one hand and
00:20:36
align it with
00:20:41
other coming
00:20:44
coming
00:20:51
so okay now this Spin and the groove I'm
00:20:56
matching it
00:21:16
so tight it with the hand as much as it
00:21:27
goes
00:21:34
so we put our element
00:21:57
back
00:22:42
again we will pressurize
00:22:56
it
00:23:13
some people does a common mistake that
00:23:15
they are tightening it too much which
00:23:17
results in uh while opening it becomes
00:23:20
very difficult to open it because they
00:23:22
have already tighted it too much so no
00:23:24
need to uh hit or close it tight it too
00:23:27
much once we release it it will be
00:23:29
automatically well pressed and uh
00:23:41
tighted okay so just in order to check
00:23:44
it once more that we have set it correct
00:23:47
or not so fuel circulation
00:23:50
uh uh hole and the nozle spray they
00:23:54
should both be matching with the same
00:23:56
side if they both are same side that
00:23:58
means we have done it correct if suppose
00:24:00
this is another side that means there is
00:24:02
something wrong we need to again check
00:24:05
it so this was the video of us with the
00:24:10
assembly and disassembly of fuel
00:24:12
injector next video we are going to
00:24:14
pressure test and show you that how to
00:24:16
do the pressure test of this uh injector
00:24:19
thank you very much like And subscribe
00:24:22
our Channel

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