coolant level in minimum seems thermostat leaking - Page 3

super s · 22nd July 2015, 10:29

could anyone please give the opinion for those questions above...

could the small oring be reffited in the new stat???

if not, any oring with the same size is ok???

and if is usual the original stat comes without the small oring???

i am making the questions so i can speak with the garage mechanic if i feel they are not doing it right...

thanks again...

T-Cut · 22nd July 2015, 11:16

The thermostat 'o-ring' is actually a shaped seal. I'd expect one to come with a new thermostat. Did you check with the supplier (DMGRS?). I don't think a standard circular o-ring will easily adapt to fit the thermostat groove. This is the seal I mean.

This fits between the stat and the water pump flange. See Item 5 in the drawing in Post 35 here: http://www.the75andztclub.co.uk/foru...=102943&page=4

EDIT:
The stat supplied by DMGRS includes the seal: http://www.dmgrs.co.uk/collections/t...evised-version

TC

super s · 22nd July 2015, 13:36

oh...

ok then... that seal camed with the stat, but it didn t came separate, it came already putted in the stat...

felling better and secure now, however i was talking about the circular one that seems a weeding ring, that we can see in jules link of thermostat replace in pink color...

which is that ring then???

DMGRS · 22nd July 2015, 16:26

The O Ring you mean is this one:
STC4540 - O Ring - CDTi Thermostat to Rail

If I remember correctly it's quite an odd size, so ideally you need to replace with the proper item.

T-Cut · 22nd July 2015, 17:11

Ah, it's the coolant pipe connector o-ring. If you need it in a hurry, I'd have thought any local seals supplier would have a suitable size. This photo may help.

The dimension of the socket gives a rough idea. The outside diameter of the ring will be 24.5mm or so. The internal diameter/thickness depends on the pipe diameter, which is 20mm by my measurement. Any decent mechanic will sort it out.

TC

super s · 22nd July 2015, 18:01

yes...

thats right ...

i think they will manage to have or find a necessary oring for that..

anyway....

like it does not come with the oring, and don t see also jules repalcing for a new one in the link above in post,,,,

is it usual to use the same oring????

thanks t-cut and mat

T-Cut · 22nd July 2015, 18:51

I'm sure many garages will reuse the existing o-ring, but in an ideal world, it would be replaced with the stat/housing.

TC

super s · 23rd July 2015, 21:55

last update and question about this tread...

so everything changed oring included because the one that was there colud not be reused, it was almost garbage...

everything went ok, they took something like 3 hours, but did a good job..

the last question that i have is...

returning home the temperatur was 90c almost all the trip, however for few moments it made 91c and 92c, then went again for 90c.

is normal to reach ocasionally and for few moments 92c???

the trip was 30 kms...

thanks everyone..

SD1too · 24th July 2015, 06:47

Quote:

Originally Posted by super s

returning home the temperatur was 90c almost all the trip, however for few moments it made 91c and 92c, then went again for 90c.

is normal to reach ocasionally and for few moments 92c???

Absolutely normal! In fact, your temperature in theory can rise to 100° when the radiator fan should cut-in. Check that it's working by doing the 'demist test'.

Simon

super s · 24th July 2015, 08:27

thank you sd1too ...

feeling smoth now, the fan works, because in garage it let it work while seeing if the replacement of the stat was ok...

so can close this thread... everything ok finnaly and first real issue with the solved...

thanks everybody that help here..

22nd July 2015, 11:16	#22
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	The thermostat 'o-ring' is actually a shaped seal. I'd expect one to come with a new thermostat. Did you check with the supplier (DMGRS?). I don't think a standard circular o-ring will easily adapt to fit the thermostat groove. This is the seal I mean. This fits between the stat and the water pump flange. See Item 5 in the drawing in Post 35 here: http://www.the75andztclub.co.uk/foru...=102943&page=4 EDIT: The stat supplied by DMGRS includes the seal: http://www.dmgrs.co.uk/collections/t...evised-version TC Last edited by T-Cut; 22nd July 2015 at 11:19..

22nd July 2015, 16:26	#24
DMGRS Discount MG Rover Spares Rover 75 CDTi, 2x MG ZS180 Join Date: Jun 2011 Location: Hythe, Southampton Posts: 11,320 Thanks: 456 Thanked 3,377 Times in 2,027 Posts	The O Ring you mean is this one: STC4540 - O Ring - CDTi Thermostat to Rail If I remember correctly it's quite an odd size, so ideally you need to replace with the proper item. __________________ Your trusted MG Rover specialist! Tel: 02380 001133 / Email: [email protected] We now have a 'chat' function on our site for even quicker replies. Give it a try! Remember - discount code FORUM5 for 5% off

22nd July 2015, 17:11	#25
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	Ah, it's the coolant pipe connector o-ring. If you need it in a hurry, I'd have thought any local seals supplier would have a suitable size. This photo may help. The dimension of the socket gives a rough idea. The outside diameter of the ring will be 24.5mm or so. The internal diameter/thickness depends on the pipe diameter, which is 20mm by my measurement. Any decent mechanic will sort it out. TC Last edited by T-Cut; 22nd July 2015 at 17:14..

22nd July 2015, 10:29	#21
super s Gets stuck in mg Join Date: Jun 2015 Location: porto Posts: 542 Thanks: 134 Thanked 40 Times in 37 Posts	could anyone please give the opinion for those questions above... could the small oring be reffited in the new stat??? if not, any oring with the same size is ok??? and if is usual the original stat comes without the small oring??? i am making the questions so i can speak with the garage mechanic if i feel they are not doing it right... thanks again...

22nd July 2015, 13:36	#23
super s Gets stuck in mg Join Date: Jun 2015 Location: porto Posts: 542 Thanks: 134 Thanked 40 Times in 37 Posts	oh... ok then... that seal camed with the stat, but it didn t came separate, it came already putted in the stat... felling better and secure now, however i was talking about the circular one that seems a weeding ring, that we can see in jules link of thermostat replace in pink color... which is that ring then???

22nd July 2015, 18:01	#26
super s Gets stuck in mg Join Date: Jun 2015 Location: porto Posts: 542 Thanks: 134 Thanked 40 Times in 37 Posts	yes... thats right ... i think they will manage to have or find a necessary oring for that.. anyway.... like it does not come with the oring, and don t see also jules repalcing for a new one in the link above in post,,,, is it usual to use the same oring???? thanks t-cut and mat

22nd July 2015, 18:51	#27
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	I'm sure many garages will reuse the existing o-ring, but in an ideal world, it would be replaced with the stat/housing. TC

23rd July 2015, 21:55	#28
super s Gets stuck in mg Join Date: Jun 2015 Location: porto Posts: 542 Thanks: 134 Thanked 40 Times in 37 Posts	last update and question about this tread... so everything changed oring included because the one that was there colud not be reused, it was almost garbage... everything went ok, they took something like 3 hours, but did a good job.. the last question that i have is... returning home the temperatur was 90c almost all the trip, however for few moments it made 91c and 92c, then went again for 90c. is normal to reach ocasionally and for few moments 92c??? the trip was 30 kms... thanks everyone..

24th July 2015, 08:27	#30
super s Gets stuck in mg Join Date: Jun 2015 Location: porto Posts: 542 Thanks: 134 Thanked 40 Times in 37 Posts	thank you sd1too ... feeling smoth now, the fan works, because in garage it let it work while seeing if the replacement of the stat was ok... so can close this thread... everything ok finnaly and first real issue with the solved... thanks everybody that help here..