Welcome back to the channel guys. Today we're gonna be doing a job
that everybody hates to do and can ruin your sprinter
Gonna be replacing the injector seals. This is a big thing with these t1n sprinters and actually
all diesels in general if you don't replace the seals when they start to leak you'll get something
called the black death which can be brutal to work on but it's still fixable everything's fixable
you just need to be really careful while you're doing it. I actually went ahead and already
replaced my first injector, it's the one closest to you when you're looking at the engine, it went
okay. It was really hard to get out. I ended up using a slide hammer and had to use it quite a
bit for it to finally wiggle out but got it out and i'm just gonna start on my second one this is
one that's been leaking. So this is the reason why i started doing the injector seals I thought might
as well do them all but i think i'm just gonna do them as they start leaking and keep a close eye on
them. I didn't actually record any footage of me getting the first injector out because i wanted to
do it right and i wanted to do the first one not on camera just to make sure i was able to do it
and that i should actually make a youtube video on how to do it and hopefully help you guys
change yours. The first thing you want to do when working on injectors is get the engine nice and
hot so take it for a nice long drive, similar to doing the glow plugs, you want to heat up
you want those aluminum engine parts and the block to expand as much as they can. It'll make
it a lot easier taking out the hold down bolt and eventually trying to get that injector out. One of
the most common things to look for if an injector is leaking is diesel fuel fumes coming into your
cab. So you'll be driving, you'll come to a stop light, you'll be sitting there and you'll be like
kind of smells like diesel a little bit. That's when you want to pop off your engine cover
and take a look to see if there's any buildup of black material, any spatter. I'll show you what
mine looks like, there's a little bit of spatter on the one side and that is a telltale sign that
you need to go ahead and replace one of your injectors that is leaking maybe more of them.
So once your engine cover is off, this is what you're gonna be looking at. So I've already gone
ahead and replaced this first injector but this one honestly wasn't leaking to start off with i
just thought mine as well start replacing all of them and i wanted one that was close to get at so
started with that one that one went okay really tough to get out. This is my second injector,
you can see the spatter all over the back there. The black death is starting to occur a little
bit. So to disassemble these guys you need to remove um this small clip right on top here
this clip just slides out which you can do with a screwdriver and then you're gonna pop off these
lines that go into the top injector. You're also going to pop off these electrical clamps which
you just pull back like that press down on the tab, really easy.
Simple as that, just pulling straight up, not wiggling side to side too much. You
don't want to break that plastic. Next up, is getting a 14 millimetre wrench
and loosening off these lines here.
So you need to loosen off both knots on each side
after you've removed that injector line going across you want to take
a little bit of tin foil just cover up
you cover up those ports with tin foil just to make sure no debris gets in there when you're
washing everything down. That guy right there is the hold down bolt to loosen these hold down bolts
you want to get a little bit of an extension and then a t40 these can get kind of tight against the
electrical connector on top so it's better to have an extended one i don't have an extended one
so i'm just working with this one of the ways to remove one of these these injectors is to pop the
injector. If you've done any reading online, you get the engine nice and hot, bring it back home,
crack that hold down bolt two or three turns and then go and start the engine.
Then, that injector might just pop and for me injector number two actually just popped out
which i am so thankful for because injector number one was a to get out so i was stoked to see that
some people crack that hold down bolt a few turns and then they'll actually go for a
drive they'll go up hills they'll try to gain that pressure inside the cylinder to pop that injector
the next way to get the injector out is to get a slide hammer which i will actually show you
it's on amazon the kit i got was like 180 bucks pretty pricey
and it's just a slide hammer that slides up and down. It clamps onto the injector,
it's really nice, it works good depending on how stuck your injector is basically.
The third and last way to get the injector out is an injector extraction tool. This involves
actually disassembling the injector from the top and then uh i don't know what size um and then you
actually screw down into the injector and then you wiggle it out. I'm hoping i don't have to use that
tool, i don't have it i didn't order it yet but it is on amazon so. Alright guys so let's see.
Hold down bolt, Look at that oh
That is the bracket.
Gotta get this on camera. So i got the injector right here just pulled it out i'm going to go
ahead and clean it but there is the copper washer on the end that we're going to be replacing.
It is absolutely filthy. S o i'm really glad i did this and i heated up the engine because that grime
is going to come off a lot easier. Alright so how you clean these is get some tinfoil lay this guy
down just like that and then you want to pick up some heavy duty oven cleaner actually and just
spray that guy you can see it's steaming because it's so freaking hot
I am just going to let that oven cleaner do its job soap in that tin foil you want to
keep the heat in that's when the oven cleaner works best. It is always a good idea when you
have one of these t1n sprinters to carry some bolts and washers. Go to your dealership and
pick these up. They'll know exactly what to give you when you give them your vin from your van.
Don't buy these from your parts store it's worth going to the dealership.
One of the o-rings i think was like five bucks and one of the bolts was like nine bucks so for
five of each it was 97 dollars which is kind of expensive for bolts and o-rings but it's worth it.
You want to get good parts when you're doing this job for sure. One of the other things i forgot to
mention is to help loosen those injectors get some penetrating oil i like to use this pb blaster.
Whether it works or not, i have no idea but i soak them like a day or two in advance before
driving it heating it up and trying to work them loose so
i don't know maybe it helped a little bit but maybe it didn't it's worth a shot anyways
all right so that's what it looks like after you take the injector out. I went ahead and
sprayed some oven cleaner on there hopefully that stuff will melt right off and i can clean it up
oh look at that there's black death right there
all right so i just want to show you what i've been cleaning
inside the injector with so i have a kit here that i purchased on amazon and i've just been rolling
towel like shop towels around the end and then spraying some oven cleaner on there and then
putting it down the cylinder and then twisting them pulling them back out and then doing it all
over again basically but i will show you here what is underneath this so i picked this kit
up from amazon it was like 35 bucks or something and it came with a whole bunch of different types
of brushes but it's getting pretty late last night decided to call it a day came back this afternoon
and i removed the cover for the air filter let me show you so there's a cover that goes across here
and it just basically you just undo there's a clip here and a clip on this side here and
you basically just slide the cover off it gives you a lot more space to work in
above the injectors here so this is how clean i've gotten everything hopefully you can see
i'm gonna shine a light down there it's looking pretty good pretty close to being done with it
it's just really challenging it takes a long time the most important thing
is that that seal where the copper washer sits is clean super clean and you want to make sure
there's no damage to it so that washer will seal nice and tight i'm going to go ahead and give it
a little bit more of a clean and then i'm going to go and show you how to install the injector
alright so this is basically my cleaning setup you can see i just stuck the rod
down inside the cylinder and it's come out dirty it's basically just that screwdriver
and then i just wrap cloth around there and then take the cloth off just by unrolling it
and there's that little brush there i have a new paper towel soaked with some oven cleaner stick
it down twist it bring it up then boom and you basically want to do that until it is clean when
you pull it out still finish cleaning the injector so this is what it looks like now you can see the
tip there this is the anti-seize that i'm using it's permatex anti-seize lubricant designed for
spark plugs injectors it's a high temperature anti-seize so it should work pretty well
all right so i'm ready to install this injector i've gotten it as clean as i'm going to i've
put some anti-seize lubricant on there and then i'm gonna smear that around and put a nice even
coat a nice even thin coat all the way around and then i also have the copper washer on there
one thing about this copper washer is you want to make sure you put it on the right way
and you'll notice that that is the correct way to put it on if you put it on the other way
there'll be a slight gap and also that you don't get any of this anti-seize on
the tip of the injector or the copper seal so if you notice i went all the way up to
about just after that last lip there just to make sure i didn't get any on the copper seal
make sure it goes in there
you'll know it's all the way in because the top
of this is about flush with this edge these two straight across there.
It is extremely important not to reuse these hold down bolts these bolts actually stretch a little
bit when you put them in so it's really important not to reuse them. A new one you'll notice has
that yellow wax coating on it. It's also very important not to use any anti-seize or lubricant
on this bolt itself because it comes with it from the manufacturer so you want to make sure
that nothing is obstructing these threads. This is the bracket.
so this is the slide hammer and i just wanted to show you guys how it fits on one of these
injectors what you do is you slide this piece down it hooks in onto the injector there
and then what you're gonna do is slide this back and forth it's pretty tight in here so for
this is the second injector and any of the other ones you might have to remove some parts but
that's exactly how it fits on there and to take it off you just slide it out like that
all right so let's slip that guy into place there
make sure it's in proper seating then you want to get your new bolt
right in there the last tool you're going to need is a torque wrench in inch pounds so it's
very important how you tighten down that t40 stretch bolt is torquing it to 62 inch pounds
and then another 90 degree turn so i don't know about your torque wrench but mine if you get one
in inch pounds they're pretty small and they don't click like a normal torque wrench would
so i just hit 62 inch pounds on the torque wrench so now i'm just gonna do another 90 degrees
just like that then for the reassemble grab your fuel line tighten it in there by hand
plug your wiring harnesses back in
and then you want to put your
return lines back on there and don't forget your clips that go on top i'm gonna go ahead and start
up the engine it's a good idea to cycle the key to the on position and off a couple times to get
that fuel pump kicking fuel back in because if you just crank it it might take a while
eventually it'll crank over but you might just be cranking it for a little bit
all right so i just got the cover back on that's how you place an injector
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we have lots more content like this the van build i will see you guys in the next one