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  #61  
Old 09-28-2009, 07:28 PM
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Re: 180 degree T-stat

Jet has nothing that I can find...but that doesnt mean there isnt one
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  #62  
Old 09-28-2009, 10:42 PM
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Re: 180 degree T-stat

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Originally Posted by dreamer1213 View Post
I just ordered Jet 180 for the WJ's H.O...will be here on Wednesday...and will be installed over the weekend..

You Hemi guys have it easy...thermostat sitting close to the top and easy access...WJ's 4.7's, don't know about the WK's...probably the same...is on the right side at the bottom...draining all the coolant is pretty much a must...
Hannes, just drain the rad. No need to drain the block. It'll be approximately 2 gallons. If the coolant is relatively new you can even re-use the coolant too.
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  #63  
Old 09-29-2009, 01:28 AM
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Re: 180 degree T-stat

Shit I couldn't find time to get the tstat in tonight I was hella busy until 10pm.. I might just see if the shop is willing to do it manana.
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  #64  
Old 09-29-2009, 01:45 AM
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Re: 180 degree T-stat

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Originally Posted by BlackPepper View Post
Shit I couldn't find time to get the tstat in tonight I was hella busy until 10pm.. I might just see if the shop is willing to do it manana.
I wouldn't worry about it too much. I wouldn't beat on it too too much until you get that 180 in though
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  #65  
Old 09-29-2009, 10:30 AM
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Re: 180 degree T-stat

Werd.
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  #66  
Old 09-30-2009, 04:53 PM
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Re: 180 degree T-stat

I never got around to puttin' in the 180* but i was thinking about the general operating aspects of it. How can the system possibly maintain the 180* temps when i cant control the electric fans to come on at 180. Sure i have the belt driven fan, but does that pull enough air across to keep the motor running at a more constant temp? If so then this might be worth it for my 4.7 that idles in traffic a lot, temp gauge over 1/2, in the Chicago summers during that time of year of course.
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  #67  
Old 09-30-2009, 05:41 PM
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Re: 180 degree T-stat

I just flew thru these threads, but doesnt the T-stat pop open at a specific temp and then allow the coolant to flow thru the radiator and heater core, and has nothing to do with operating temp. Meaning the radiator and cooling fans maintane the engine temp. I remember my T-stat in my other GC went on me in winter, and I couldnt get heat at all because the one I had in had the safety feature where it gets stuck open if it failed, so the coolant was allowed to flow throughout the entire system, where as if it got stuck close my car would overheat because the coolant would not be flowing thru the radiator, only the engine block.

Maybe im wrong, but I could only see changing out to a different temp T-stat is related to where you live. For me the stock seems fine, I get heat within 5-10 min in winters, and my engine temp always stays right below the halfway mark on the gauge.

On a side note im kinda pissed my WK doesnt have an oil pressure gauge on the dash like my 94 Limited GC did.
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  #68  
Old 09-30-2009, 05:56 PM
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Re: 180 degree T-stat

Quote:
Originally Posted by TimmyB View Post
I just flew thru these threads, but doesnt the T-stat pop open at a specific temp and then allow the coolant to flow thru the radiator and heater core, and has nothing to do with operating temp. Meaning the radiator and cooling fans maintane the engine temp. I remember my T-stat in my other GC went on me in winter, and I couldnt get heat at all because the one I had in had the safety feature where it gets stuck open if it failed, so the coolant was allowed to flow throughout the entire system, where as if it got stuck close my car would overheat because the coolant would not be flowing thru the radiator, only the engine block.

Maybe im wrong, but I could only see changing out to a different temp T-stat is related to where you live. For me the stock seems fine, I get heat within 5-10 min in winters, and my engine temp always stays right below the halfway mark on the gauge.

On a side note im kinda pissed my WK doesnt have an oil pressure gauge on the dash like my 94 Limited GC did.
Well yeah i mean the normal operating temperature is (195* from chrysler/thermostat). It will open and coolant will flow through and the aux cooling will kick in to maintain the temp.

You can consider a Jeep's normal operating temp 180* if they have a 180* therm in that case.

But in my situation of hot ideling traffic at times, i need to find a way to set in the computer to start up the cooling fans at 180* or rig up a switch to turn on the high speed cooling fans. (Back in the days of my oldsmobile intrigue and the 3800 series II GM motor fun, the forums i read, people who raced with their grand prix's rigged a high speed fan switch so they could turn the fans on and off whenever they wanted.) Cause while yes the 180* thermostat will let the coolant flow at 180, but the engine temp will still gradually rise to 195 or 210 whatever it is before the aux. fans to kick in to bring down the temperature.

The coolant temp is probably monitored by some sensor that gives the computer the reading. If the temp says something lower than 195 or 210* (factory) why would the fans turn on at all, or maintain the 180 in that case just because you have a 180 in there?
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  #69  
Old 09-30-2009, 07:08 PM
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Re: 180 degree T-stat

In my Jegs catalog they have switches for the cooling fan, has different temps settings it turns on at and has a defeat switch so you can turn it on manually.
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  #70  
Old 09-30-2009, 07:29 PM
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Re: 180 degree T-stat

Quote:
Originally Posted by TimmyB View Post
In my Jegs catalog they have switches for the cooling fan, has different temps settings it turns on at and has a defeat switch so you can turn it on manually.
Link?
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  #71  
Old 09-30-2009, 07:46 PM
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Re: 180 degree T-stat

I'm thinking that it cant be too hard to rig some kinda switch with the relay or wires that controls the high speed or low speed aux. fan on our jeeps eh?
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  #72  
Old 09-30-2009, 08:08 PM
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Re: 180 degree T-stat

Depends on what kinda fan you have....if you have an electric fan that yes....a switch is possible...when I went to the track with Harrison he had a switched wired to his SRT8's fan to where he could let the fans run while the Jeep was off...

If you have a mechanical or clutch fan...then there is no way to "override" it...my WJ and the HEMI WK's, not sure bout the 4.7 WK's are hydraulically cooled...the powersteering system's pressure controls the fan....don't think you could hook a switch up to it, since the powersteering pump has to be running for it to be able to get pressure to the fan..
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