Heater blowing cold

eigger · 31st March 2013, 08:58

I did the in-line thermostat mod using the Renault 5 stat. I lost a bit of coolant onto the floor, but topped up afterwards with about 1.5 lts.
The running temps are great now using OBD - 7 reading mid to high 80's peaking at 93 while waiting in a queue.
BUT the heater is bowing cold!! could this be an air lock? gonna go outside now and get her up to temp then try that bleed screw!

carlpenn · 31st March 2013, 09:00

Sounds like it yes. Could be airlocked in the Heater Matrix.

Mike Noc · 31st March 2013, 09:45

Quote:

Originally Posted by carlpenn

Sounds like it yes. Could be airlocked in the Heater Matrix.

Can be a problem when fitting an inline stat - it's not as easy to bleed the air out of the system.

eigger · 31st March 2013, 09:51

Hmmmmm!!! I got a leak from somewhere between the top hose and block! plastic bit that top hose goes onto??? there seems to be another smaller hose coming off that.
Is it a big job to remove intake manifold to have a look at it

Mike Noc · 31st March 2013, 10:26

The seals can fail on the top hose to block connection - on mine the inner part of the casing had broken off.

Easy enough job to change. Didn't Arctic do a 'How To' with photos showing the removal of the inlet manifold?

SD1too · 31st March 2013, 10:34

Quote:

Originally Posted by eigger

gonna go outside now and get her up to temp then try that bleed screw!

Reg,

Stop! The bleed screw is for use when refilling with cold coolant. You should not open it when the engine is at running temperature.

The correct procedure is in Haynes.

Simon

eigger · 31st March 2013, 11:12

Quote:

Originally Posted by Mike Noc

The seals can fail on the top hose to block connection - on mine the inner part of the casing had broken off.

Easy enough job to change. Didn't Arctic do a 'How To' with photos showing the removal of the inlet manifold?

Thanks Simon!!.

Great, found the "How To's"
Where did you get the seal/housing from?
What is the housing called?

FOUND IT on RimmerBros - Elbow assembly - Engine Coolant

yamahajrb · 31st March 2013, 12:01

Quote:

Originally Posted by eigger

Hmmmmm!!! I got a leak from somewhere between the top hose and block! plastic bit that top hose goes onto??? there seems to be another smaller hose coming off that.
Is it a big job to remove intake manifold to have a look at it

Had that top hose to head connection replaced yesterday & yes the internal plastic that retains the seal was broken away, easy job to replace, the large & small pipes that fit to the plastic 'Y' piece have spring circlips, remove those & its still quite difficult to pull the pipes off but they will come off with a little persistence & a spray of wd40, make sure you thoroughly clean the mating surface & apply a little sealant, hope this helps, John

eigger · 31st March 2013, 12:18

Quote:

Originally Posted by eigger

Thanks Simon!!.

Great, found the "How To's"
Where did you get the seal/housing from?
What is the housing called?

FOUND IT on RimmerBros - Elbow assembly - Engine Coolant

Found cheaper alternatives too, Freelander are much cheaper:
Brit-car.co.uk
http://www.brit-car.co.uk/product.php?xProd=102906
http://www.brit-car.co.uk/product.php?xProd=101069

or Paddockspares.com
http://www.paddockspares.com/lr00679...er-outlet.html

31st March 2013, 08:58	#1
eigger Avid contributor 2001 Rover 75 Connie SE CDT Auto Join Date: Mar 2011 Location: Lowestoft Posts: 128 Thanks: 0 Thanked 4 Times in 1 Post	Heater blowing cold I did the in-line thermostat mod using the Renault 5 stat. I lost a bit of coolant onto the floor, but topped up afterwards with about 1.5 lts. The running temps are great now using OBD - 7 reading mid to high 80's peaking at 93 while waiting in a queue. BUT the heater is bowing cold!! could this be an air lock? gonna go outside now and get her up to temp then try that bleed screw! __________________ Reg & 7 [SIGPIC]http://s1276.beta.photobucket.com/user/eigger49/media/Seven75_zpsabfd9e0a.jpg.html?sort=3&o=4[/SIGPIC]

31st March 2013, 09:00	#2
carlpenn This is my second home 2000 Wedgey Blue 2.5V6 Beauty Join Date: Jul 2007 Location: Bilston Posts: 4,486 Thanks: 36 Thanked 29 Times in 16 Posts	Sounds like it yes. Could be airlocked in the Heater Matrix. __________________ 2.5V6 Auto: Work carried out so far: Crankcase Breather Pipe replaced, O/S CV Joint replaced, Starter Motor Repair Kit Fitted, Front Suspension Overhauled.

31st March 2013, 09:51	#4
eigger Avid contributor 2001 Rover 75 Connie SE CDT Auto Join Date: Mar 2011 Location: Lowestoft Posts: 128 Thanks: 0 Thanked 4 Times in 1 Post	coolant leak Hmmmmm!!! I got a leak from somewhere between the top hose and block! plastic bit that top hose goes onto??? there seems to be another smaller hose coming off that. Is it a big job to remove intake manifold to have a look at it __________________ Reg & 7 [SIGPIC]http://s1276.beta.photobucket.com/user/eigger49/media/Seven75_zpsabfd9e0a.jpg.html?sort=3&o=4[/SIGPIC]

31st March 2013, 10:26	#5
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,585 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	The seals can fail on the top hose to block connection - on mine the inner part of the casing had broken off. Easy enough job to change. Didn't Arctic do a 'How To' with photos showing the removal of the inlet manifold?