we are replaceing my thermostat on 2002 f350 with a 7.3 liter diesel we've already
removed the reservoir and washed it just because we had some sludge in the bottom of ours and so now
we've got the top hose here loosened and we've already drained the anti-freeze
down probably three gallons or so out of there so we should be good but right
down here is where your thermostat is on top on the water pump and you can tell
you can see I don't know how well you can see but there's a bunch of crud on there
and it looks like it's leaking right about around here and the thermostat is
we are pretty sure it is stuck open because we were squeezing it last night you can
hear that thing rattling around in there so stay tuned and we'll show you how to
do it
alright guys we're gonna break these bolts loose they're all eight millimeter
socket so we got a nice you know three mile long extension here to fit back here
so we're just going to break through break all the bolts loose be careful not
to break the heads-up but if you happen to break the heads off
they i believe i've looked it up there were six millimeter bolts at any hardware
store will do the trick
just make sure you match the threads
they shouldn't be on there all that I mean
they're not super snug but this you know just be careful you don't want to break them
yeah they're not the best location they're kind of a pain in the butt
the bolts out of the thermostat there the housing so make sure to keep those
you don't want to lose them so now we're going to go ahead and take this off
i got we've all ready have loosen this clamp here for the radiator so we can slide the hose off
we are not replacing the hose but you can and get the one set up for the duel
alternators I think it'd be nicer but we're not replacing it so there's
your thermostat so this piece most times you can see it's kinda looks like crap
in there we are putting a we're okay well it doesn't look too bad but always
you can replace it with an all-aluminum one which which look would look a lot
nicer but I mean you've other ones have been wrought right because they'll rust
through from the inside out with these things just keep that in mind if you don't
want to have to worry about it you can always replace it with the aluminum one
so now you want to clean out the top of the thermostat dry it off get all that
residue out of there and you're going to have to scrape this stuff flat to make
sure all the seals gone
alright so sense it's stuck in here we're just going to have to go ahead and pry it
out and really was not that much force just a little tap but you're going to
pry her out and then she comes out real nice and you can see here she isn't working
all that well anymore
she's a little ah looks like a little warm worn-out its had its life this
seal you should get a new one if you're replacing it but other then that you're good so we went
you just go to any old any old local auto parts store and get a new
thermostat this is the old one
this is the new one they've changed the spring in here a little bit but that
doesn't matter we're putting in the same 195 degree one instead of the 2O3
'cause
we don't have two weeks to wait for it to be shipped but at some point in time we
might go back and replace and put the 2O3 and then throw the extra duel
alternator hose on which would sit here so you don't have to worry about
changing your belt but other then that they are pretty much relatively the same so
that's where replacing it with this is the original one this is new one so we're
just going to scrape up this little gunk here because it is a little uneven and
we do want to seal good we do not want to leak so you just take any slotted
screwdriver and you just
scrape it just very lightly so you don't wreck anything and you're going to
scrape off and you because if it was leaking your scrape enough and I freeze
build-up and the residue make sure you put something in the holes so you don't
get all that old burnt up or dried-out anti-freeze back in the engine that's
not good
we're just going to drop you said it back in all my drop but put it back in
there nicely you stick the o-ring on top here just get her and she's a little
snug make sure it's it then they're flat you don't have a curled and then we're
going to stick this cover replaceing because the other one was shot
we took the holes up found out you just put that back in there and we're just
going to start bolting it down and you want to bolt it down in a circle
circular pattern so you don't over-tighten anything you don't want to
strip these bolts out just putting them into aluminum thank you for watching
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