|
||
|
16th July 2021, 22:02 | #11 |
This is my second home
Rover 75 cdt club + Rover 2.5 KV6 Conni SE Join Date: May 2008
Location: Birmingham
Posts: 11,356
Thanks: 6,587
Thanked 2,262 Times in 1,729 Posts
|
Take the thermostat out and have a look what is stamped on it temperature wise. Then change it for the correct opening temperature thermostat. Easy really.
__________________
Great Barr, Birmingham. |
16th July 2021, 23:04 | #12 |
Trader
Mk1 2004 tourer cdti + MK1 2003 Saloon CDT Join Date: Nov 2015
Location: west yorkshire
Posts: 481
Thanks: 106
Thanked 91 Times in 57 Posts
|
I have been in contact with x-part myself who after being informed of other members of the club being affected by more than one parts supplier selling thermostats that appear to all be operating at the same temperature. The adviser has stated they will investigate the issue with the manufacturer.
They stated that it is the same supplier they have had for years so.. from my point of view, it could simply be that the wrong stat is being fitted and has gone un-noticed. A straight forward simple issue that should be fairly straight forward to correct I would have thought. I myself have ordered a new thermostat from summit garage, to replace the unit I fitted in november that has always opened too early. Due to the possibility of an issue with the thermostat opening too early on the new part despite coming from summit garage (main dealer), due to the possibility of an issue at manufacturer level, I will be testing the thermostat opening temperature tomorrow with the use of a digital temperature probe and if possible, taking photographs showing the temperature of the water and if possible the opening of the thermostat. The new thermostat sourced from summit garage, obtained via x-part came in a box, with the saic/roewe and MG branding with other information and with an address in China. (Quite honestly think the sticker was applied at dealer but parts inside are from the uk It's not a particularly difficult task changing the thermostat on the V6 but it is pretty soul destroying after spending a fair amount of money on parts and then doing the work to find the part is faulty.. even more so when you begin to see other people also having the exact same issue. And while a work around such as a second thermostat in the top hose could well be a solution. Surely the correct steps to take is to look into where the issue is arising and see if it can be corrected before making a modification/work around. As it's important to remember that the original thermostat fitted in the V of the block can still leak or break up with age or the thermostat eventually jamming shut causing a flow restriction so later down the line.. still requiring a replacement. Then, you'll be left with the same situation, paying good money for a thermostat that you know isn't likely to work as it is intended.
__________________
"A Rover doesn't breakdown.... It merely fails to proceed" Last edited by biffa75; 16th July 2021 at 23:35.. |
17th July 2021, 07:34 | #13 | |
Loves to post
Rover75 tourer Join Date: Jun 2018
Location: Ashton
Posts: 428
Thanks: 121
Thanked 206 Times in 145 Posts
|
Quote:
Don't forget to suspend the stat with a piece of string or wire in the water to keep it clear of contacting the pan to prevent metal to metal heat transfer.
__________________
Common sense isn't a gift, it's a punishment because you have to deal with everyone who doesn't have it. |
|
17th July 2021, 09:11 | #14 | |
Give to Learn
Freelander 2 Join Date: Aug 2010
Location: West Midlands
Posts: 18,651
Thanks: 1,155
Thanked 6,407 Times in 3,874 Posts
|
Quote:
Good luck and please let us know the out come.
__________________
Arctic Givology Learn to Give Everything is Achievable ad altiora tendo. Check out our Nano meet dates http://www.midlandsnanomeets.co.uk/ http://www.the75andztclub.co.uk/index.php?thepage=howto " You do the work , we supply the expertise " Last edited by Arctic; 18th July 2021 at 09:43.. |
|
17th July 2021, 11:41 | #15 |
Trader
Mk1 2004 tourer cdti + MK1 2003 Saloon CDT Join Date: Nov 2015
Location: west yorkshire
Posts: 481
Thanks: 106
Thanked 91 Times in 57 Posts
|
Not to worry folks, I have had a different idea. Instead of using a pan I'll block three of the four ports off, leaving the port with the sprung section of the thermostat visible. I will then be adding the water to the stat housing this way. The water temp will be maintained for a few seconds before adding the water and allowing it to sit inside the housing with the temp probe and watching for the spring beginning to move indicating that the stat is operating and at what temp. If they weren't so expensive I would have split it open and tested the thermostat that way but I aren't in a position to buy two at £40 each just for the housing. I will report back possibly this evening.
__________________
"A Rover doesn't breakdown.... It merely fails to proceed" |
17th July 2021, 22:36 | #16 |
Trader
Mk1 2004 tourer cdti + MK1 2003 Saloon CDT Join Date: Nov 2015
Location: west yorkshire
Posts: 481
Thanks: 106
Thanked 91 Times in 57 Posts
|
Quick report back.
So, testing first: without opening the thermostat this did prove difficult but measuring out 130ml of hot water with the temperature maintain at 83 to 83.4°c showed the springs around the thermostat shaft didn't appear to move a great deal if at all. At 90°c, we noticed the springs begin to compress slightly. At 87°c the springs also began to move slowly. As said, doing this with the thermostat housing still intact was difficult. So it is far far from an exact measurement but I felt confident in the new thermostat. I set about removing the top half of the engine ancillaries and there was a marked difference in the thermostats and thermostat housings themselves. I would post pictures but aren't able to at the present time. The bottom of the thermostat showed two completely different thermostat designs. The removed thermostat housing had no etching of sub assembly number or the 82°c etching that many people mention. It was completely blank. On the underside of the high frequency welded joint on the new part there was what appeared to be a sub assembly part number possibly, the one removed from the car didn't have anything etched or stamped. There was very clearly a difference between the two thermostat housing and thermostat design. The car is almost back together however I had to down tools at 10pm. I'm hoping to finish things off tomorrow. I'm feeling hopeful that the new thermostat will be totally fine.
__________________
"A Rover doesn't breakdown.... It merely fails to proceed" |
2nd August 2021, 13:24 | #17 |
Avid contributor
MG ZT-T+ 190 Join Date: Sep 2015
Location: Bristol
Posts: 224
Thanks: 101
Thanked 19 Times in 16 Posts
|
Even easier if you sold a kit with the right one fitted, wouldn't it?
__________________
1186th ZT-T 190 out of 1756 |
12th August 2021, 12:59 | #18 |
Regular poster
MG ZT KV6 (160) Join Date: Feb 2018
Location: Solihull
Posts: 36
Thanks: 0
Thanked 6 Times in 6 Posts
|
I have posted in a different thread regarding this issue.
I bought a thermostat kit from DMGRS a couple of months back and after fitting, the car took an age to get up to the minimum 75° temp in our recent warm weather (over 6 miles) and the highest temps on the motorway I was getting was 78°. The stat was opening way too early around 74° so clearly faulty or an 78° stat was fitted in housing by mistake? A replacement was sent from DMGRS with no issues, of which they told me was from a new OE supplier. It has the original part number stamped into the housing along with the stat rating of 82°. I fitted this last weekend and now my car is reaching normal operating temp quite quickly (3 miles ish) and on the ipk display showing 82° to 84° on motorway. I understand this is still not the 88° minimum the car was designed to run with however, I am assuming that at these temps, the 82° stat is working just fine. The guys at DMGRS are always helpful and do not hesitate to replace faulty parts so will continue to receive my custom even if their suppliers sometimes let them down with cases like this. |
12th August 2021, 16:16 | #19 | |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
Location: Former Middlesex
Posts: 20,265
Thanks: 1,587
Thanked 3,749 Times in 3,181 Posts
|
Quote:
Simon
__________________
"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
|
12th August 2021, 16:53 | #20 |
Regular poster
MG ZT KV6 (160) Join Date: Feb 2018
Location: Solihull
Posts: 36
Thanks: 0
Thanked 6 Times in 6 Posts
|
OK but if its running between 82° and 84° steady on the motorway then I think its safe to say it has an 82° stat and is working as it should at that temperature no?
|
Thread Tools | |
Display Modes | |
|
|