|
||
|
11th December 2020, 15:05 | #51 | |
This is my second home
Rover 75 Saloon & Tourer Join Date: Sep 2012
Location: Lincoln
Posts: 14,932
Thanks: 1,630
Thanked 3,032 Times in 2,181 Posts
|
Quote:
I will try again and hopefully do it right. It will be an eye opener if at 9 o'clock it is still "cold" as I do get warm air. I will have to visit this thread after testing again and seeing what the diagnostics display tells me. I do not want to fit a digital display and I do not want to run in diagnostics mode, I would like the original gauge to be accurate. If I fit the other inline stat that is recommended in this thread and that opens when the water is hotter, what can I expect to see when it comes to the needle? Will it sit between 9 and 10 0'clock or will it rise to between 9 and 10 and then the stat opens and the needle drops to 9? macafee2 |
|
11th December 2020, 17:52 | #52 | |
Gets stuck in
75 saloon 2.0 diesel Join Date: Feb 2016
Location: Panton, lugo, Galicia
Posts: 945
Thanks: 236
Thanked 192 Times in 143 Posts
|
Quote:
It's worthwhile running the diagnostic mode for a few trips after you've replaced your stat. You can then see the needle sits at 9 at 75c and stays there until you hit you target temp, and then it still stays there as the water circulates, cools and then gets hotter again. Unless it goes over 105(?) It won't go above 9 o'clock. |
|
11th December 2020, 19:11 | #53 |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
Location: Former Middlesex
Posts: 20,395
Thanks: 1,587
Thanked 3,749 Times in 3,181 Posts
|
It is accurate Ian, but it was designed to indicate "normal" (the nine o'clock position) for any temperature between 75 and 115 degrees. So the gauge is operating within its specification but that doesn't give the driver the information he/she needs.
115 degrees Dave. Simon
__________________
"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
11th December 2020, 19:34 | #54 | |
This is my second home
MG ZT CDTi Join Date: Jan 2014
Location: carrick
Posts: 7,859
Thanks: 3,494
Thanked 2,657 Times in 1,973 Posts
|
Quote:
If you find that your thermostat is not allowing it to heat up to the magic 88 degrees (the tell tale is 82 and below), you will still get warm air, the problem is, as you use the warm air, the engine will cool yet more, but you will still receive warm air. The engine will still run fine, albeit a little less economically. Theoretically it will experience more wear, but in real world, I bet the rest of the car will expire first! If you decide (or you 'need') to fit an inline thermostat, the chances are you will notice little difference, except if you turn the temp up to max. on the ATC, I found it noticeably warmer. With the ATC set to 22-24, there was no change. You may get a couple more mpg, but again, in real world situations, you may not even notice lol. It doesnt have to be a Wahler stat. I have tried various brands, and all were not as good as the wahler. They are twice the price (£15 compared with £7.50) but they are also twice the quality. As long as the stat holds water in its bowl whilst it is cold, it should be fine, and you dont damage/distort it whilst fitting. Incidentally, if you watch it at 74 degrees, you will see the gauge at around the 8 o'clcok position, as it turns 75, you will see the needle rise to 9 o'clock. I have only ever seen it rise above the 9 position, and at idle that was some wait! At that point the fan came on, (which was 105, it actually rose to 106 before it fell) and it rapidly fell back to 9 position, which was when I was fed up and embarrassed (it took about an hour, and I am sure my neighbours were wondering what i was up to!).
__________________
It is not gloss primer .............. it is duct tape silver! |
|
11th December 2020, 22:14 | #55 |
Give to Learn
Freelander 2 Join Date: Aug 2010
Location: West Midlands
Posts: 18,726
Thanks: 1,155
Thanked 6,407 Times in 3,874 Posts
|
Engine Temp Run Out OBD Inline Stat.
As i started to read this thread early this morning, i decided that i would give the tourer a run out later today and take a few photo before, during and after i got back.
So to start with ignition to I Press trip switch go to 19. 1 Then press when on the off sign go to 7. 2 It will read ---000 Turn ignition off then back on again ignition II without starting the car. Press trip switch to 19. 3 Press when on off sign, go to 7. 4 It should give a reading mine was ---009 Next i took photo of time before starting the car for the tested journey. 5 Car started press trip switch to 19. 6 Then on off to 7. reading now is ---016 7 Set trip distance to 0.0 miles before setting out on the journey. 8 Even in that amount of time 3 minutes the reading temp as changed while on tick over, please take note of the time through out this thread on the camera & clock. ---044 8 Pulling off at 4mph reading is ---56 9 After 1.7 miles reading is ---063 10 3.5 miles reading ---081 11 4.3 miles reading is ---084 12 5.9 miles reading is now ---085 13 I am 18 minutes into the journey. 14 9.4 miles reading is ---084 15 I pull over in layby to take photo of the time, on the clock 15.10pm 16 Arrive back home clock reads 15.20pm 17 15.0 miles the journey finished back home reading is ---086 18 Fuel reading 37.6mpg driving roughly 35mph to 40mph reading as now reached ---087 19 Average mph 29.3 reading is still ---087 while ticking over. 19 Back to 0mph ticking over reading is ---084 20 So a 15 mile round trip in differing traffic thermostat fitted is a Gates which i prefer nice tight fit no bypass and doe's not need a second jubilee clip to keep it in hose correctly. 21 22 23 24 25 26 make sure there are no leaks after fitting.
__________________
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; 11th December 2020 at 22:58.. |
12th December 2020, 09:59 | #56 | |
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
|
Quote:
EDIT: Altering the way the gauge responds to the sensor signal has been discussed umpteen times in the past and the conclusion thus far is it can't be done. TC |
|
12th December 2020, 14:42 | #57 | |
This is my second home
MG ZT CDTi Join Date: Jan 2014
Location: carrick
Posts: 7,859
Thanks: 3,494
Thanked 2,657 Times in 1,973 Posts
|
Quote:
Sent from my SM-A600FN using Tapatalk
__________________
It is not gloss primer .............. it is duct tape silver! |
|
12th December 2020, 17:50 | #58 | |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
Location: Former Middlesex
Posts: 20,395
Thanks: 1,587
Thanked 3,749 Times in 3,181 Posts
|
Quote:
Simon
__________________
"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
|
13th December 2020, 10:26 | #59 |
This is my second home
Rover 75 Saloon & Tourer Join Date: Sep 2012
Location: Lincoln
Posts: 14,932
Thanks: 1,630
Thanked 3,032 Times in 2,181 Posts
|
Am I running cold? Started the car and went for a drive and this time with ignition key at position 2, I got the temperature reading.
Having done about 12 miles mainly at 30, 40 and 50 the best I got was 81. I think it made 83 on the way home. There was no load so to speak as it was just the wife and I on the way and return a load of empty boxes as well. Am I running cold or cool? The dial was at the 9 o'clock. macafee2 |
13th December 2020, 13:36 | #60 | |
This is my second home
MG ZT CDTi Join Date: Jan 2014
Location: carrick
Posts: 7,859
Thanks: 3,494
Thanked 2,657 Times in 1,973 Posts
|
Quote:
At this time of year, and in these ambient temperatures, mine reaches 75 in about 3 miles. This is roughly 1 mile each of 30, 40, then 50 mph, and what I would describe as firm acceleration. Following this, another 2 miles at varying 40-50 mph (and maybe a traffic light or two) it reaches 84-86 degrees. After those 5 miles I reach the motorway and within a mile of accelerating to to 70/80 and cruising the inline stat has opened at 88/89 degrees. It maintains 84-86 until I park at my work, which is literally at the end of a slip road off the motorway. So that is 6 miles variable speeds of 30-40-50-70 mph, it reaches temp. In the summer, it opens earlier at 5 miles and before I reach the motorway. As well as this, I do not have the heater on. If you have the heater on after perhaps 3 miles I would suggest that it will not reach 86/88 by the 12th mile without much acceleration (ie no engine load), if you didnt exceed 50mph. There are so many variables, it is difficult to measure. I am happy that it reaches the temperature, and it has a consistent pattern. But your description is similar to how mine would react if the heater was on early in the run. If the heater was not used, I would suggest that whilst it seems like the stat is opening early (it does NOT have an inline if I recall) it is not bad, but would still benefit slightly to a decent inline stat fitted. ---------------------------------------------------------------------- Another test, if you can cruise, with no acceleration, along a motorway for 5 miles, after the temp has reached its max temp. The temp displayed should remain relatively constant, and that will give you an idea if the stat is opening early. The last time I did this, with a faulty stat, it maintained roughly 76 degrees - if the stat had been operating correctly, the temp would have continued to rise.
__________________
It is not gloss primer .............. it is duct tape silver! Last edited by clf; 13th December 2020 at 13:42.. |
|
|
|