V6 running temp?

Yella Fella · 5th August 2015, 10:22

I know a K Series should run around the low 90 degrees mark dependant on factors like engine load and outside temp etc but what should a V6 2.5 run at?

murphyv310 · 5th August 2015, 10:50

Hi Glenn.
I'd be looking for between 88 to 95, possibly higher in traffic with the low speed fan kicking on at 100c. Mine runs cool as I've not had the inspiration to fit my new one as yet. The thermostat can go either way on these cars too.

Jamiewelch · 5th August 2015, 14:51

Erm... Mine tends to run about the 80c mark when driving about on motorway etc, temp does rise when stationary and fan kicks in at 100c

SD1too · 5th August 2015, 17:20

Quote:

Originally Posted by Jamiewelch

Erm... Mine tends to run about the 80c mark when driving about on motorway etc ..

Your thermostat is opening too early, or stuck partially open. Has anyone been putting magic sealant gunges in the cooling system?

Quote:

Originally Posted by Yella Fella

I know a K Series should run around the low 90 degrees mark dependant on factors like engine load and outside temp etc but what should a V6 2.5 run at?

The same. They both have 88° thermostats and virtually identical cooling system design.

Simon

Phil-T4 · 5th August 2015, 17:50

Depends what thermostat is fitted, I have a genuine MGR one as stock which is 82, but the pattern ones are 88.
The V6 I was changing the belts on today also has a 82 thermostat

SD1too · 5th August 2015, 17:59

Quote:

Originally Posted by Phil-T4

The V6 I was changing the belts on today also has a 82 thermostat

Phil; you're not looking at the figure printed on the housing are you?

Simon

Phil-T4 · 5th August 2015, 18:04

Yes I was, as most I have seen have 88C but this one was 82C.

SD1too · 5th August 2015, 18:07

It's a lie I'm afraid.

My housing was also labelled 82° but I tested the 'stat and it began opening at 88°.

I don't know why this is. Maybe the earlier versions of the KV6, for the 800 series for example, may have used a cooler 'stat within.

Simon

Phil-T4 · 5th August 2015, 18:14

Now you mention it, when John was reading out the temp during the refill it didn't start circulating in the expansion tank until 90

T-Cut · 5th August 2015, 18:53

All the reading I've done on this indicates MGR specified an 88C stat for all the engines.
I think the 82C alternatives have evolved into the scene as a result of HGF in the 1.8 and overheating generally when the gauge says 'normal'. Basically lack of cooling system maintenance. Also, since the OBD routine became popular. Seeing the coolant temperature anywhere near 100C seems to frighten many owners into reducing the running temperature. Interestingly, the opposite trend as evolved with the diesel, though the feared 100C line still holds sway.

TC

5th August 2015, 10:22	#1
Yella Fella Nemo Me Impune Lacessit None at the moment Join Date: Nov 2007 Location: Glasgow's HMP Barlinnie, 'A' Hall, 2nd Flat Posts: 5,192 Thanks: 493 Thanked 1,094 Times in 666 Posts	V6 running temp? I know a K Series should run around the low 90 degrees mark dependant on factors like engine load and outside temp etc but what should a V6 2.5 run at? __________________ [SIGPIC][/SIGPIC]

5th August 2015, 10:50	#2
murphyv310 This is my second home Hyundai i10 998cc Join Date: Mar 2012 Location: Kilmarnock Posts: 6,602 Thanks: 2,088 Thanked 2,298 Times in 1,349 Posts	Hi Glenn. I'd be looking for between 88 to 95, possibly higher in traffic with the low speed fan kicking on at 100c. Mine runs cool as I've not had the inspiration to fit my new one as yet. The thermostat can go either way on these cars too. __________________ Cheers from Trevor MM0KJJ

5th August 2015, 18:07	#8
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,386 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	It's a lie I'm afraid. My housing was also labelled 82° but I tested the 'stat and it began opening at 88°. I don't know why this is. Maybe the earlier versions of the KV6, for the 800 series for example, may have used a cooler 'stat within. Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

5th August 2015, 18:53	#10
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,753 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	All the reading I've done on this indicates MGR specified an 88C stat for all the engines. I think the 82C alternatives have evolved into the scene as a result of HGF in the 1.8 and overheating generally when the gauge says 'normal'. Basically lack of cooling system maintenance. Also, since the OBD routine became popular. Seeing the coolant temperature anywhere near 100C seems to frighten many owners into reducing the running temperature. Interestingly, the opposite trend as evolved with the diesel, though the feared 100C line still holds sway. TC Last edited by T-Cut; 5th August 2015 at 18:57..

5th August 2015, 14:51	#3
Jamiewelch Posted a thing or two Alpina D3 Join Date: Sep 2014 Location: Cheslyn hay Posts: 1,002 Thanks: 58 Thanked 294 Times in 227 Posts	Erm... Mine tends to run about the 80c mark when driving about on motorway etc, temp does rise when stationary and fan kicks in at 100c

5th August 2015, 17:50	#5
Phil-T4 I really should get out more....... MG ZT-T, Rover 75 Tourer Join Date: Mar 2011 Location: Olney Posts: 2,969 Thanks: 245 Thanked 1,088 Times in 657 Posts	Depends what thermostat is fitted, I have a genuine MGR one as stock which is 82, but the pattern ones are 88. The V6 I was changing the belts on today also has a 82 thermostat

5th August 2015, 18:04	#7
Phil-T4 I really should get out more....... MG ZT-T, Rover 75 Tourer Join Date: Mar 2011 Location: Olney Posts: 2,969 Thanks: 245 Thanked 1,088 Times in 657 Posts	Yes I was, as most I have seen have 88C but this one was 82C.

5th August 2015, 18:14	#9
Phil-T4 I really should get out more....... MG ZT-T, Rover 75 Tourer Join Date: Mar 2011 Location: Olney Posts: 2,969 Thanks: 245 Thanked 1,088 Times in 657 Posts	Now you mention it, when John was reading out the temp during the refill it didn't start circulating in the expansion tank until 90