V6 turbo coolant temperature

Renault & Alpine General Discussion

Moderators: eastlmark, phildini, BIG_MVS, Alpineandy, Test Moderator

no avatar
User

claudiu_rem

Rank

Club Member

Club Member
Posts

57

Joined

Fri Dec 08, 2017 1:47 pm


Has thanked: 9 times
Been thanked: 0 time

V6 turbo coolant temperature

Postby claudiu_rem » Sat Jun 30, 2018 7:06 am

I’ve finally finished the lhd conversion. I took her on a 200 mile trip and the coolant temperature would not go under100c. When climbing it goes up to 120C. Outside temperature is 15C. The cooland has been changed, the radiator fan works, but the temperature stays ip. What should be the normal road temperature of the coolant. On the Renault 25 v6 turbo, it rarely excedes 85C. Any ideas? Thanks
User avatar
User

JohnC

Rank

Club Member

Club Member
Posts

2159

Joined

Sun Dec 02, 2007 6:19 pm

Location

Jersey C.I.


Has thanked: 14 times
Been thanked: 79 times

Re: V6 turbo coolant temperature

Postby JohnC » Sat Jun 30, 2018 9:06 am

claudiu_rem wrote:What should be the normal road temperature of the coolant.

The thermostat on the turbo opens at 86 degrees ...... so the thermostat might need to be checked out.
Another question ........ was the cooling operating correctly when you first bought the car ?
1990 GTA Atmo, 2003 Jaguar X type 2.5SE Auto, 2018 Kia Picanto GT-Line-S 1.25
no avatar
User

claudiu_rem

Rank

Club Member

Club Member
Posts

57

Joined

Fri Dec 08, 2017 1:47 pm


Has thanked: 9 times
Been thanked: 0 time

Re: V6 turbo coolant temperature

Postby claudiu_rem » Sat Jun 30, 2018 11:23 am

I will change the thermostat. I only took a few drives in the city when i bought it and it was january, but the temperature stayed at 90. Will try to bleed the instalation again and change the thermostat. Thank you for the reply
User avatar
User

pgoldsmith

Rank

Non Member

Posts

928

Joined

Tue Jul 20, 2004 12:14 pm

Location

West Moors, Dorset


Has thanked: 1 time
Been thanked: 5 times

Re: V6 turbo coolant temperature

Postby pgoldsmith » Sun Jul 01, 2018 6:30 pm

Could also be a faulty coolant cap; not pressurizing the system hence temps goes up.

Had that more than once with an old Mk2 Escort.
GTA Turbo 1991 - Stratos blue
no avatar
User

claudiu_rem

Rank

Club Member

Club Member
Posts

57

Joined

Fri Dec 08, 2017 1:47 pm


Has thanked: 9 times
Been thanked: 0 time

Re: V6 turbo coolant temperature

Postby claudiu_rem » Fri Jul 06, 2018 4:25 pm

I changed the expansion tank cap, flushed the instalation, bleed the instalation, change thermostat with 81c from 86c. Still the temperature stays high. The coolant level never drops, so I guess the headhaskets are out of question. Running out of ideas. The electric fan works. Maybe radiator not doing the job or water pump?
You do not have the required permissions to view the files attached to this post.
User avatar
User

simontaylor

Rank

Non Member

Posts

5485

Joined

Thu Apr 15, 2004 12:33 pm

Location

Fleet, Hampshire


Has thanked: 32 times
Been thanked: 48 times

Re: V6 turbo coolant temperature

Postby simontaylor » Fri Jul 06, 2018 6:38 pm

have you cleaned out the radiator.
Often the bottom half can become filled with silt, because the input and aoutput are both half way up the sides of the radiator.
1986 : '86 GTA v6 BW-EFR turbo, with Adaptronic ECU
Firsts at
2007 : Gurston Down & RAOC Champion
2008 : Rushmoor & Eelmoor & ACSMC Hillclimb class Champion
2009 : Longcross & Eelmoor
2010 : Crystal Palace & Eelmoor
2016 : Rushmoor & 5th O/A
no avatar
User

claudiu_rem

Rank

Club Member

Club Member
Posts

57

Joined

Fri Dec 08, 2017 1:47 pm


Has thanked: 9 times
Been thanked: 0 time

Re: V6 turbo coolant temperature

Postby claudiu_rem » Fri Jul 06, 2018 6:40 pm

Also, the coolant hoses are very hard when the engine warms up.
no avatar
User

claudiu_rem

Rank

Club Member

Club Member
Posts

57

Joined

Fri Dec 08, 2017 1:47 pm


Has thanked: 9 times
Been thanked: 0 time

Re: V6 turbo coolant temperature

Postby claudiu_rem » Fri Jul 06, 2018 7:06 pm

I haven’t taken the radiator off. I will do that and clean it.
User avatar
User

JohnC

Rank

Club Member

Club Member
Posts

2159

Joined

Sun Dec 02, 2007 6:19 pm

Location

Jersey C.I.


Has thanked: 14 times
Been thanked: 79 times

Re: V6 turbo coolant temperature

Postby JohnC » Fri Jul 06, 2018 7:09 pm

These Alps can be tricky to bleed ......... can you tell us the method you are using to bleed the cooling system.
1990 GTA Atmo, 2003 Jaguar X type 2.5SE Auto, 2018 Kia Picanto GT-Line-S 1.25
no avatar
User

claudiu_rem

Rank

Club Member

Club Member
Posts

57

Joined

Fri Dec 08, 2017 1:47 pm


Has thanked: 9 times
Been thanked: 0 time

Re: V6 turbo coolant temperature

Postby claudiu_rem » Fri Jul 06, 2018 8:01 pm

My english is not so good. Hope you understand. I let the engine warm up and bleed the screw next to the thermostat and the front radiator. I did this twice
User avatar
User

JohnC

Rank

Club Member

Club Member
Posts

2159

Joined

Sun Dec 02, 2007 6:19 pm

Location

Jersey C.I.


Has thanked: 14 times
Been thanked: 79 times

Re: V6 turbo coolant temperature

Postby JohnC » Sat Jul 07, 2018 8:48 am

As Simon suggests ..... it would be worth removing the rad and flushing it out.
Also, put the correct 86 degree thermostat in and jack up the rear of the car before refilling with coolant. You need to fill slowly as trapped air in the engine has to pass through the jiggle valve which is a small hole in the thermostat. Once you have filled the reservoir, bleed the radiator but with the bung completely removed to get a decent flow from the bleed tube....... then refill the reservoir to about half full before capping it and running the engine.
Do not worry about the bleed screw on the thermostat housing as it is redundant on Alpine installations. You need only bleed the radiator as the rest of the cooling system will self-bleed.
The main thing is to take your time in refilling.
You will have to top the reservoir up again once you have been for a run as there will have been very small pockets of air trapped in the engine which once the engine has been run, will find its way to the reservoir.
But ... PLEASE ... do not drain and refill or flush with a hot engine. Apart from scalding yourself with hot water, you could damage the engine by putting cold coolant into a hot engine.
1990 GTA Atmo, 2003 Jaguar X type 2.5SE Auto, 2018 Kia Picanto GT-Line-S 1.25
no avatar
User

claudiu_rem

Rank

Club Member

Club Member
Posts

57

Joined

Fri Dec 08, 2017 1:47 pm


Has thanked: 9 times
Been thanked: 0 time

Re: V6 turbo coolant temperature

Postby claudiu_rem » Sun Jul 08, 2018 9:35 am

Thanks for the advice. I will take of the radiator first and I will try to flush the engine block to. I changed the coolant twice and flushed the system and still it has a lot of rust in it.
User avatar
User

darrenbiggs

Rank

Club Member

Club Member
Posts

1387

Joined

Thu Apr 29, 2004 1:03 pm

Location

Horley - Nr Gatwick


Has thanked: 14 times
Been thanked: 32 times

Re: V6 turbo coolant temperature

Postby darrenbiggs » Sun Jul 08, 2018 9:48 am

Post a pic of the rad and also rub your hand over the fins. They should be solid and mostly intact aside from the usual few scars.

I had a rad ages ago that looked ok, but as soon as you rubbed your hand on it, the fins just disintegrated and crumbled away. Obviously useless for heat transfer as they were totally rotted out.
Last edited by darrenbiggs on Sun Jul 08, 2018 12:43 pm, edited 1 time in total.
I'm just here for the gasoline.
no avatar
User

claudiu_rem

Rank

Club Member

Club Member
Posts

57

Joined

Fri Dec 08, 2017 1:47 pm


Has thanked: 9 times
Been thanked: 0 time

Re: V6 turbo coolant temperature

Postby claudiu_rem » Sun Jul 08, 2018 11:36 am

I will take a picture of it when I will remove it. Last night the temperature got high and it bursted a hose under the expansion tank and all the collant got under the car.
You do not have the required permissions to view the files attached to this post.
no avatar
User

claudiu_rem

Rank

Club Member

Club Member
Posts

57

Joined

Fri Dec 08, 2017 1:47 pm


Has thanked: 9 times
Been thanked: 0 time

Re: V6 turbo coolant temperature

Postby claudiu_rem » Wed Jul 11, 2018 4:20 pm

I’ve taken the radiator of and cleaned it. It’s full of rust and silt. I put some cleaning solution in it over the night and i will flush all the system. Hope it works
You do not have the required permissions to view the files attached to this post.
Next


  • Advertisement

Who is online

Users browsing this forum: No registered users and 13 guests

Powered by phpBB ® | Renault' and 'Alpine' are trademarks of Renault S.A.S. or its subsidiaries and are used with kind permission of Renault France