DIY: 1mz thermostat

[samarai912]

Well my Stant 170* thermostat came in today and I thought I would make a Tread out of it. You don't have to use a 170* you can used the oem thermostat too. this is just how to replace a thermostat. Anyone can do this, it's very simple.
here is the thermostat housing we'll be removing.


So here we go:

-things you'll need-

10mm socket
6-8" extension
12mm socket
pair of pliers

step #1

Drain coolant into a clean container. Or floor, driveway,ect.( I don't know how you people live)

I used a big 10gallon steel mixing bowl I got a yard sale for $5.

step #2

This is what we'll be working on.


so use pliers to crimp clip and remove lower radiator hose that goes to the thermostat housing. I used vise grips.



step #3

use a 12mm socket on this bolt.


and a 10mm bolt here. we're taking off the wire harness that holds everything away from the tranny and starter. you know, things that are hot.



unclip the sensor here.


step #4

using a 10mm socket with an extension removed the three nuts for the housing. one is visible the other two are harder to see. but theres three.
Then pull housing out if you can. its a little tricky to get out.



see the disconnected hose here. you can do that too makes things easier.


remove old thermostat.



step #5

take new thermostat.


and put it in sping facing in. man, my stant looks dinky compared to my oem one.


so far you should have this somewhere.

-radiater plug
-old thermostat
-4 10mm nuts
-one 12mm bolt
-radiator cap



now when your putting everything back together remember not to tighten the thermostat housing nuts too tight.

-69 inch lbs. on those. or they'll break!

OK now put everything back and fill your radiator.

finalizing thoughts-
I had a trouble getting to everything with my turbo in the way so it should be a 20 minute job. hope you do it yourself!

EEWWW! I just noticed how dirty my motor is. Plus the paint on my Damn intake is chipped!!!!

[Albuynp Ryeno]

Green coolant? I am disappointed.

[Camry Racing]

Originally Posted by Albuynp Ryeno

Green coolant? I am disappointed.

whats wrong with it ?

[Albuynp Ryeno]

Originally Posted by Camry Racing

whats wrong with it ?

toyotas are one of the car brands that use OAT coolants. It should be toyota red factory coolant.

[Camry Racing]

Originally Posted by Albuynp Ryeno

toyotas are one of the car brands that use OAT coolants. It should be toyota red factory coolant.

I use a green one too that doesnt have antifreeze and nothing wrong with it

[Camry Racing]

Originally Posted by samarai912

My car sucks. :]

WTF! you got a turbo camry and you said it sucks you must be out of your mind

[Hajoca]

From the looks of his Tstat housing and the other pics, the coolant he is using has not gelled or coated the inside of the coolant passages with a fine powder of water deposit and silicate.

Colour of coolant does not mean much other than it is a dye.

Traditionally the non-green (red/orange blue, yellow, etc.) colour indicated long life coolant. Toyota factory fill before 1995 or so was green, and silicate free.

[samarai912]

^ lmao. anyways... I also use a bottle of water wetter made by redline. I read an article on it. they did some extensive tests and it cooled the water temps by 12* over normal coolant. I'm trying to get the heat down in my engine bay. its been like 89-100* here lately. whenever I had to stop before I could stare at the temp gauge and watch it go up.

Now there is no problem.

[darksparkz]

Originally Posted by twojzcrackerbox

His car has a Turbo?! thats the dummest thing I have ever seen! why the **** did you do that to a grandma driven POS like that? I saw your cardomain, I think its a joke. I like the wing though. if it wasn't on your car. get a real sports car you chump!

Whoa now, no need to be offensive here, you are on a Camry forum after all.

[lordstarwind]

^ never learned how to play well with others, he probably drives a Dodge Neon or something :P

[twojzcrackerbox]

Great DIY samarai912!

[Eye8Pussies]

lol

just noticed this thread....added to diy

[ekopel]

hey samari, do you know the stock temps for the 1mz? gen 4? where did you get that thermostat? how much was it?

[samarai912]

Originally Posted by ekopel

hey samari, do you know the stock temps for the 1mz? gen 4? where did you get that thermostat? how much was it?

the stock is 82*C. I got the stant for 23bucks at schucks auto.

[projektvertx]

Search button is my friend Glad I found this, now I will use it since I suspect my thermostat has gone to hell and back on me today. Total noob question: What are the advantages of having a lower temp thermostat??? I'm gonna stick to OEM spec, but I'd just like a little insight What are the advantages when a lower thermostat is put on a 1MZ-FE?? What are the disadvantages on the 1MZ-FE??