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Location:
Perth
Registered:
October 2003
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1JZ thermostat
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Sat, 29 November 2003 10:37
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Got the car idling for the first time today, problem is there doesnt seem to be any water circulation. The top of the radiator and hose is boiling hot, while the bottom of the radiator and hose is cold. So im assuming my thermostat is jammed. Is it located in the housing where the bottom hose goes onto? Will I have any problems getting a replacement from the local Repco store?
Thanks
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Location:
Perth
Registered:
July 2003
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Re: 1JZ thermostat
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Sat, 29 November 2003 23:09
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Skip,
looks like it is in the lower housing.
The part number I get from the Jap EPC is 90916-03092. See the highlighted bit in the image below (if it works).
Gotta love the EPC!
Cheers
Peter
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Location:
Perth
Registered:
July 2003
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Re: 1JZ thermostat
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Sat, 29 November 2003 23:14
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Ok - I must be stupid.
How the hell do you include an image in a post?
Peter
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Location:
Perth
Registered:
October 2003
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Re: 1JZ thermostat
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Sun, 30 November 2003 03:51
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I dont think you can attach files from your hard drive on here, only link to pictures on the net.
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Location:
NSW, East Coast
Registered:
July 2003
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Re: 1JZ thermostat
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Sun, 30 November 2003 12:54
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Ive changed one of these when the motor was in a car (MX83)and i must say its a bit of a pain in the arse.
Not impossible thou.
The thermostat is under the turbo at the front of the block.
You'll need to remove air filter and piping, the bottom nut isnt all that hard but the top one is a little more dificult.
You'll need the look down from the top (hard to see and do) or come up from underneath (never tried but it has to be easier) to get to the nut.
I dare say there is a blockage somewhere id the bottom hose is still cold.
Hope it all works out for you.
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Location:
Perth
Registered:
October 2003
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Re: 1JZ thermostat
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Mon, 01 December 2003 01:16
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Fortunately it was just an air lock in the engine. Im glad i got it out before i went trying to remove the thermostat. Its quite amazing how hot these things open, mine is around 90 degrees!!!!!
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Location:
I wanna go Hawaiiiiii.......
Registered:
November 2003
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Re: 1JZ thermostat
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Mon, 01 December 2003 01:30
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A 1j wont make its best power untill temps are 90 deg +.
I think around 98 or something turned out to be the otpimum.
Celicamad I think you know ??
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Registered:
March 2003
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Re: 1JZ thermostat
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Mon, 01 December 2003 13:45
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| FKN16V wrote on Sun, 30 November 2003 23:54 |
You'll need to remove air filter and piping, the bottom nut isnt all that hard but the top one is a little more dificult.
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i rounded that top bolt trying to get it off 
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