Jezzaol
21st January 2008, 09:01 PM
HI All,
I have a interesting question relating to my cooling system on my D1 3.9 V8i Auto.
For the past few months or so I have noticed that the Disco temp would slightly climb when im at lights or stopped for longer periods. I removed the engine fan last year and fitted twin thermo fans ! Now from everthing I read and followed up on I needed fan cowlings (which I had not done) and when I drove quicker and had the Air flow up the temp always went back down. Confirming that I needed fan cowling.
I got around to making a alloy cowling and fitting it up on the weekend, this is where it gets odd. Straight away when I drove it in the hottest part of the day it stayed nice and cool, even sitting in a take away drive through for 15 mins..........Did'nt budge..........Normal operating temp. So I decided to go for a extended drive, about 160km round trip and see how she went. Well after about 30mins of stop start type city driving my temp rose a bit, I kept going and just kept my eye on it........... Well First shock was the temp would rise when the engine was under load and then go down while at the stop lights :eek::eek: The opposite to what was happening ?? so I got on the freeway thinking at least the air flow at 100km would help it come back down.......... Hmmmmmmmmmmm NO..............it kept going up and down depending on the load :eek: OK........ SO Im starting to think I have a biger problem, I slow down and do some stop start driving again and the temp goes back down, get back on the open road doing 100km and up she goes again (always not going over that 3/4 temp) hmmmmmmmm drove for another 10 mins ambient temp still the same and all of a sudden the temp goes back to its normal just under half temp :eek: drove fast, slow whatever it didnt budge ?????? OK maybe Im going mad, take it for a drive in the sand......... still no budge temp all good ????? Its seems to be all good now :confused::confused::confused:
Thermostat ?? Air block in the system ??? Head gasket ???Any Idea's ???
Cheers and thanks in advance !
I have a interesting question relating to my cooling system on my D1 3.9 V8i Auto.
For the past few months or so I have noticed that the Disco temp would slightly climb when im at lights or stopped for longer periods. I removed the engine fan last year and fitted twin thermo fans ! Now from everthing I read and followed up on I needed fan cowlings (which I had not done) and when I drove quicker and had the Air flow up the temp always went back down. Confirming that I needed fan cowling.
I got around to making a alloy cowling and fitting it up on the weekend, this is where it gets odd. Straight away when I drove it in the hottest part of the day it stayed nice and cool, even sitting in a take away drive through for 15 mins..........Did'nt budge..........Normal operating temp. So I decided to go for a extended drive, about 160km round trip and see how she went. Well after about 30mins of stop start type city driving my temp rose a bit, I kept going and just kept my eye on it........... Well First shock was the temp would rise when the engine was under load and then go down while at the stop lights :eek::eek: The opposite to what was happening ?? so I got on the freeway thinking at least the air flow at 100km would help it come back down.......... Hmmmmmmmmmmm NO..............it kept going up and down depending on the load :eek: OK........ SO Im starting to think I have a biger problem, I slow down and do some stop start driving again and the temp goes back down, get back on the open road doing 100km and up she goes again (always not going over that 3/4 temp) hmmmmmmmm drove for another 10 mins ambient temp still the same and all of a sudden the temp goes back to its normal just under half temp :eek: drove fast, slow whatever it didnt budge ?????? OK maybe Im going mad, take it for a drive in the sand......... still no budge temp all good ????? Its seems to be all good now :confused::confused::confused:
Thermostat ?? Air block in the system ??? Head gasket ???Any Idea's ???
Cheers and thanks in advance !