Re Renault 5 mod on diesel75 issue ! "Help"

mgzrjake · 8th April 2016, 21:19

Hi all and hello,

Came hm tonight and next door was finishing off temp/hot heater mod or so called Renault mod.

After saying good evening he called me over. I've done this and it's not working ? Top pipe off inserted thermostat in with pointy bit facing engine 10cm done as its stated on here. Followed it off you tube looked no leaks topped up how do you bleed it ? I've had it running for 1/2 hr and temp needle still at 7 o'clock and bottom rad pipe not warm top pipe in to rad hotish from block ? What shall I do ? So I'm asking here the fountain of knowledge :-)

Any ideas or thoughts on this seams strange that it's still doing the same with extra what you would say was blockage or even pressure to send it hotter. Could it be air locked ?

All replies will be very helpful
Rgds
Jake

T-Cut · 8th April 2016, 21:27

Did you/he (?) read the recent thread about leakage through some R5 stats? If there's the smallest coolant leak past the closed valve, the results are very disappointing. One R5 stat known to be OK is made by FirstLine.

TC

clf · 8th April 2016, 21:30

Quote:

Originally Posted by mgzrjake

Hi all and hello,

Came hm tonight and next door was finishing off temp/hot heater mod or so called Renault mod.

After saying good evening he called me over. I've done this and it's not working ? Top pipe off inserted thermostat in with pointy bit facing engine 10cm done as its stated on here. Followed it off you tube looked no leaks topped up how do you bleed it ? I've had it running for 1/2 hr and temp needle still at 7 o'clock and bottom rad pipe not warm top pipe in to rad hotish from block ? What shall I do ? So I'm asking here the fountain of knowledge :-)

Any ideas or thoughts on this seams strange that it's still doing the same with extra what you would say was blockage or even pressure to send it hotter. Could it be air locked ?

All replies will be very helpful
Rgds
Jake

Go for a drive, with the OBD display on. I havent tried idling for that long. I would suspect it is getting there, but takes longer to reach temp. As long as you are satisfied there are no leaks, drive for maybe 10 miles, trying to get the engine under load.

mgzrjake · 8th April 2016, 21:44

Quote:

Originally Posted by clf

Go for a drive, with the OBD display on. I havent tried idling for that long. I would suspect it is getting there, but takes longer to reach temp. As long as you are satisfied there are no leaks, drive for maybe 10 miles, trying to get the engine under load.

OBD on ? What's that so I can tell him but surly the lower pipe would warm up ?

clf · 8th April 2016, 21:48

Quote:

Originally Posted by mgzrjake

OBD on ? What's that so I can tell him but surly the lower pipe would warm up ?

I will find the link, but the lower pipe should be cool. It is the coolant that has passed through the cooling fins of the rad.

Option 7.0

HERE

daznkel · 8th April 2016, 23:47

The M47R engine is so thermally efficient, idling for half an hour will not bring it up to temperature.
At very least it would need to be revved pretty hard for a time. Using the OBD, as suggested by Alan, whilst revving, you should see the temperature rise to 88-89 deg, then as the stat opens, will drop, then cycle up and down.

Alan has become "Jedi Master" on all things R5 stat!

clf · 9th April 2016, 00:18

Quote:

Originally Posted by daznkel

Alan has become "Jedi Master" on all things R5 stat!

LOL, I wouldnt go that far at all, more like Jedi student, well probably more like Jedi tea boy.

to the real Jedi masters such as ...... well everyone else who participated in this thread. lol

(WARNING to mgzrjake: that is an epic thread, full of posts of me going around in circles, and largely unimportant comments and failed theories lol)

I plan to (briefly!) update with my impressions after a couple of months running.

Kennyeth · 9th April 2016, 07:24

No one has asked how much coolant he lost and how much he replaced.

Ken.

mgzrjake · 9th April 2016, 08:04

Quote:

Originally Posted by daznkel

The M47R engine is so thermally efficient, idling for half an hour will not bring it up to temperature.
At very least it would need to be revved pretty hard for a time. Using the OBD, as suggested by Alan, whilst revving, you should see the temperature rise to 88-89 deg, then as the stat opens, will drop, then cycle up and down.

Alan has become "Jedi Master" on all things R5 stat!

thank you ill tell him to drive it so under load more, then see what happens

clf · 9th April 2016, 15:33

Quote:

Originally Posted by Kennyeth

No one has asked how much coolant he lost and how much he replaced.

Ken.

That is a good point, however the amount normally lost is generally minimal. The coolant around the temp sensor should still rise though.

Still, just idling with no load on the engine for half an hour from cold, with one of these engines is unlikely to raise the temp enough to make any kind of observation.

Sent from my super duper fancy phone that all the kids have nowadays, using Tapatalk

8th April 2016, 21:19	#1
mgzrjake Loves to post MG ZTT 135+ diesel, MGZS 180 saloon MK2 Join Date: Mar 2016 Location: stockport Posts: 438 Thanks: 137 Thanked 72 Times in 53 Posts	Re Renault 5 mod on diesel75 issue ! "Help" Hi all and hello, Came hm tonight and next door was finishing off temp/hot heater mod or so called Renault mod. After saying good evening he called me over. I've done this and it's not working ? Top pipe off inserted thermostat in with pointy bit facing engine 10cm done as its stated on here. Followed it off you tube looked no leaks topped up how do you bleed it ? I've had it running for 1/2 hr and temp needle still at 7 o'clock and bottom rad pipe not warm top pipe in to rad hotish from block ? What shall I do ? So I'm asking here the fountain of knowledge :-) Any ideas or thoughts on this seams strange that it's still doing the same with extra what you would say was blockage or even pressure to send it hotter. Could it be air locked ? All replies will be very helpful Rgds Jake

8th April 2016, 23:47	#6
daznkel Posted a thing or two 04 MG ZT+ 190 XPG & 99 (T) Dealer Launch 75 V6 Connie Auto Join Date: Oct 2012 Location: Plymouth Posts: 1,080 Thanks: 615 Thanked 456 Times in 309 Posts	The M47R engine is so thermally efficient, idling for half an hour will not bring it up to temperature. At very least it would need to be revved pretty hard for a time. Using the OBD, as suggested by Alan, whilst revving, you should see the temperature rise to 88-89 deg, then as the stat opens, will drop, then cycle up and down. Alan has become "Jedi Master" on all things R5 stat! __________________ Click HERE To Be Added To The South West Members Location Map Upgrades/Mods so far: Custom Angel Eye DRL's, MG7 Rear lights, Custom Door Cards, MGR Plates, Red Alcantara Seats, Black Oak Dash, Powerflex bushes, Plenum Spy Mod, Rear Light Seals, 5000K HID Kit, Navall 3 DD, Blue LED Conversion, Custom badges, Union badges, Flip key. Working on more! [SIGPIC][/SIGPIC]

8th April 2016, 21:27	#2
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	Did you/he (?) read the recent thread about leakage through some R5 stats? If there's the smallest coolant leak past the closed valve, the results are very disappointing. One R5 stat known to be OK is made by FirstLine. TC

9th April 2016, 07:24	#8
Kennyeth This is my second home No more Rover Join Date: Apr 2009 Location: Barnsley, South Yorkshire. Posts: 5,881 Thanks: 1,625 Thanked 1,308 Times in 998 Posts	No one has asked how much coolant he lost and how much he replaced. Ken.