In line thermostat temp drop

nebrog23 · 23rd August 2013, 08:58

I fitted the in line thermostat from europarts a few months ago and it ran at 86-88 degrees however this has now dropped to 81-82 degrees. Anyone any ideas as to the cause or is it just a case of replacing?

75driver · 23rd August 2013, 17:43

Sorry, cant advise about the cause for drop in temp, (other than stat failing), but mine runs at 81c all the time.
Doesn't seem to give it a "poor" performance so i am content to leave it as is.
Perhaps some other wise person could advise if an extra few degrees would make any difference.

CimmaronG · 23rd August 2013, 19:21

My original inline stat was bought off ebay, lasted a few weeks. I replaced it with one I bought from local car accessories shop, for a Renault 5, which was more bell shaped. Runs at 86 degrees now.

nebrog23 · 23rd August 2013, 19:24

I have bought another for £6 so will try that and see how it runs. Its just strange it was running fine.
Biggest concern will be getting the old one out of the hose.

bramblp · 25th August 2013, 13:57

Make a lasso with a lenght of wire to grab hold of the stat and pull it out

nebrog23 · 25th August 2013, 14:40

Thanks,good idea using the wire. Changed it and its exactly the same. Gets to 84-85 under load then stat opens and runs at 82degrees.

I'm guesssing the difference in running temp maybe because that stat is located in a different part of the coolant system (hotter) to the original so opens slightly earlier.
It seems you may need a higher rated stat to match the running temp of the original due to the change in location.
I imagine with a correctly working oem stat the coolant in the top hose would be approx 92-93 degrees when the stat opened.

I could be completely wrong however.I will replace the original at some point.

23rd August 2013, 08:58	#1
nebrog23 Loves to post MG ZT-T CDTi Join Date: Oct 2012 Location: Chorley Posts: 296 Thanks: 10 Thanked 21 Times in 13 Posts	In line thermostat temp drop I fitted the in line thermostat from europarts a few months ago and it ran at 86-88 degrees however this has now dropped to 81-82 degrees. Anyone any ideas as to the cause or is it just a case of replacing?

23rd August 2013, 17:43	#2
75driver Posted a thing or two Rover 75 saloon, manual. Rover 75 Tourer, Auto. Join Date: Jan 2013 Location: Newry Posts: 1,782 Thanks: 574 Thanked 443 Times in 371 Posts	Sorry, cant advise about the cause for drop in temp, (other than stat failing), but mine runs at 81c all the time. Doesn't seem to give it a "poor" performance so i am content to leave it as is. Perhaps some other wise person could advise if an extra few degrees would make any difference. __________________ 2006 75 Contemporary SE diesel manual (#1) 2003 75T Connoisseur SE diesel auto (For Comfort) 2005 75 Connoisseur SE diesel auto (Marmite duotone ) 2006 75 Connoisseur SE diesel auto (The last one?) 2009 E220 (For a change) 2018 L200 (For Big & Heavy Things) 1976 W114 250 Manual (For Sundays)

23rd August 2013, 19:21	#3
CimmaronG Gets stuck in Roverless at present :-( Join Date: Aug 2012 Location: Walsall Posts: 964 Thanks: 305 Thanked 99 Times in 95 Posts	My original inline stat was bought off ebay, lasted a few weeks. I replaced it with one I bought from local car accessories shop, for a Renault 5, which was more bell shaped. Runs at 86 degrees now. __________________ My Rover 75 2.0CDTi (131Ps) Conn SE Tourer Left the production line 08:07:14hrs on 01/07/2004 'Best to have it and not need it, than need it and not have it'

25th August 2013, 13:57	#5
bramblp Loves to post Rover 75 CDT Join Date: Dec 2006 Location: Dublin Posts: 470 Thanks: 0 Thanked 8 Times in 7 Posts	Make a lasso with a lenght of wire to grab hold of the stat and pull it out __________________ [SIGPIC][/SIGPIC]

23rd August 2013, 19:24	#4
nebrog23 Loves to post MG ZT-T CDTi Join Date: Oct 2012 Location: Chorley Posts: 296 Thanks: 10 Thanked 21 Times in 13 Posts	I have bought another for £6 so will try that and see how it runs. Its just strange it was running fine. Biggest concern will be getting the old one out of the hose.

25th August 2013, 14:40	#6
nebrog23 Loves to post MG ZT-T CDTi Join Date: Oct 2012 Location: Chorley Posts: 296 Thanks: 10 Thanked 21 Times in 13 Posts	Thanks,good idea using the wire. Changed it and its exactly the same. Gets to 84-85 under load then stat opens and runs at 82degrees. I'm guesssing the difference in running temp maybe because that stat is located in a different part of the coolant system (hotter) to the original so opens slightly earlier. It seems you may need a higher rated stat to match the running temp of the original due to the change in location. I imagine with a correctly working oem stat the coolant in the top hose would be approx 92-93 degrees when the stat opened. I could be completely wrong however.I will replace the original at some point.