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25-11-2011
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Symphony Composer
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Join Date: Jul 2009
Location: Rockingham, WA
Posts: 638 What Jeep do I drive?: XJ
Likes: 0
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The temps here now are in the 40's and the V8 Jeep still does not have any overheating problems. I can't remember the last time the fans came on. The temps sit between 79 and 85. Not sure if it is the change to the LS1 or the alloy radiator but temp problems are a thing of the past.. Get an alloy radiator. Bonus is the trans cooler is on the correct side as well..
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14-01-2012
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Jeep Junkie
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Join Date: Feb 2008
Location: Morayfield
Posts: 8 What Jeep do I drive?: XJ
Likes: 0
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Just fitted these two vents before relocating to cairns. Very good value, dropped about 5 degrees and has never gone above about 103 since instalation. Even fully loaded up, including roof racks on drive to cairns in 35 plus degrees. Beenliegh to Port Douglas in 24 Hours! To top it of averaged 13.1 L/100 pushed hard. Can't wait to test the vents out on some low range work!
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Gotta love a little red Jeep!!!
Last edited by brett6322; 14-01-2012 at 09:21 AM.
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25-02-2012
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MonsterMoose
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Join Date: Nov 2003
Location: Brisbane, Southside
Age: 51
Posts: 10,539 What Jeep do I drive?: WK2
Likes: 369
Liked 1,110 Times in 691 Posts
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After many years (8 approx of my ownership) of running what I can only assume is the original radiator fitted to my car which makes it 16yrs old the old copper/plastic unit had to be changed as it was weeping around where the tanks seal against the core.
So I flushed it all, put in an aftermarket copper/brass unit, fitted a new 192*f thermostat replacing a genuine 195*f (god only knows how old that is as the engine was swapped last year) running a new waterpump and twin electrics it now runs way cooler then it ever did.
When stock or even with the new pump and twin electrics it would sit rock solid on around 95* all day every day, on the highway, in traffic, towing my camper trailer didn't matter, heavy 4wding was the only thing that would make any difference but now the temp is all over the place from just over 1/4 (around 70*) up to the normal 90's range according to the guage, it doesn't look like a lot on the guage but when it never used to move at all it is a little odd.
What I haven't tried yet is my camper on it since the xmas overheating debacle which inspired all these replacements....
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JJ
Do it once, Do it right!
2014 WK2 Overland
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25-02-2012
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RubiconSlammer
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Join Date: May 2011
Location: Ipswich, Brisbane.
Posts: 1,250 What Jeep do I drive?: ZJ
Likes: 115
Liked 281 Times in 182 Posts
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Quote:
Originally Posted by junglejuice
but now the temp is all over the place from just over 1/4 (around 70*) up to the normal 90's range according to the guage, it doesn't look like a lot on the guage but when it never used to move at all it is a little odd.
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Sounds like those fans are cooling the water temp down too much. You could cut down the airflow with a bit of removable plywood, rework the fans or put a piece of tape over the gauge.
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25-02-2012
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MonsterMoose
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Join Date: Nov 2003
Location: Brisbane, Southside
Age: 51
Posts: 10,539 What Jeep do I drive?: WK2
Likes: 369
Liked 1,110 Times in 691 Posts
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Quote:
Originally Posted by Billnick
Sounds like those fans are cooling the water temp down too much. You could cut down the airflow with a bit of removable plywood, rework the fans or put a piece of tape over the gauge.
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The fan mod went in back in about 2009 so I seriously doubt that will be the issue, the first sign of any fluctuation albeit only minor ie you could detect on the guage when the t/stat would open and close was after doing the engine swap but at the same time I had to put in a new temp sensor as it broke but it was minor not like now, if I have the AC on which means the fans are both on full speed the temp stays around the 70 mark, if I leave the AC off the fans run on low speed the temp will eventually come up higher but still not quite to where it used to.
I am thinking it may be the t/stat, I still have the original from my engine even though it is at least 8.5yrs old but was always stable and I still have the t/stat from the new motor which is ??yrs old so it will be interesting to swap them back in and see what happens....
__________________
JJ
Do it once, Do it right!
2014 WK2 Overland
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25-02-2012
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RubiconSlammer
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Join Date: May 2011
Location: Ipswich, Brisbane.
Posts: 1,250 What Jeep do I drive?: ZJ
Likes: 115
Liked 281 Times in 182 Posts
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The point I was making is now the rad is super efficient and doesn't require the same amount of air pulled through it to maintain a stable temp. I'm thinking one of those flow restrictors made out of a nylon cutting board would do the trick.
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25-02-2012
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MonsterMoose
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Join Date: Nov 2003
Location: Brisbane, Southside
Age: 51
Posts: 10,539 What Jeep do I drive?: WK2
Likes: 369
Liked 1,110 Times in 691 Posts
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Good point, I will try the thermostat first before modding it....
__________________
JJ
Do it once, Do it right!
2014 WK2 Overland
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