Relaplaced Fan and Thermostat,still got problems

Dimlow · 17th May 2011, 11:47

Hello , My Rover 75 2L KV6 was over heating all the time, i found that the fan needed replacing and the thermostat was leaking into the V. Anyway from all the good advice on this site. i managed to replace them both with new.

But now i still have a water leak and the V is dry all pipes seem dry as far as i can check, but there is still water dripping off the sump and a cant find were its coming from. i checked the water pump and that seems ok.

One thing that im not sure of is the gasket under the alloy inlet manifold.I never changed this as it looked ok. Could this be the source of my water leak?

i dont think its HGF as oil and water look ok.

Dimlow · 18th May 2011, 11:23

Well I stuck Radweld Ultra in it the leak stopped.

SD1too · 18th May 2011, 12:09

Quote:

Originally Posted by Dimlow

One thing that I'm not sure of is the gasket under the alloy inlet manifold. I never changed this as it looked ok. Could this be the source of my water leak?

Hello Gary,

I've a feeling that there's a coolant gallery incorporated in the inlet manifolds, but my memory might be deceiving me. So it might be the cause of your problem. Although leaks are notoriously difficult to trace, the residue from the pink OAT antifreeze usually indicates the source.

Just to warn you that some members have experienced heater matrix problems after using liquid sealing products.

Simon.

Dimlow · 19th May 2011, 07:16

well , yes i think is has a water pipe to the inlet manifold, but i thought if that leaked, it would leak into the V , but its dry now.

SD1too · 19th May 2011, 07:48

Quote:

Originally Posted by Dimlow

well , yes i think is has a water pipe to the inlet manifold...

Gary,

I don't think there's a pipe. If the alloy manifolds are heated, they get their coolant via a port in the mating surface with the head.

Simon.

MikeHurley · 19th May 2011, 20:28

Agreed, this is one of the reasons I will be getting part No. LKJ100992L- Manifold Gaskets shortly.

As you suggest, SD1too, these reside between the aluminium inlet manifolds and where they mate with the Head. Indeed there is a coolant ladder between both metal elements. Accordingly Coolant can leak either internally or externally as a result of these gaskets failing. And I suspect in my case internally, and is the cause of an increased amount dark brownish mayo in the vicinity of the Oil Cap together with the need to top every couple of days.

Lates · 20th May 2011, 10:10

Water pump leak can also end up on the bottom of the sump / oil filter area

17th May 2011, 11:47	#1
Dimlow Newbie Rover 74 club Join Date: Mar 2010 Location: sittingbourne Posts: 12 Thanks: 0 Thanked 0 Times in 0 Posts	Relaplaced Fan and Thermostat,still got problems Hello , My Rover 75 2L KV6 was over heating all the time, i found that the fan needed replacing and the thermostat was leaking into the V. Anyway from all the good advice on this site. i managed to replace them both with new. But now i still have a water leak and the V is dry all pipes seem dry as far as i can check, but there is still water dripping off the sump and a cant find were its coming from. i checked the water pump and that seems ok. One thing that im not sure of is the gasket under the alloy inlet manifold.I never changed this as it looked ok. Could this be the source of my water leak? i dont think its HGF as oil and water look ok.

19th May 2011, 20:28	#6
MikeHurley Gets stuck in Rover 75 Saloon 2.5 V6 Join Date: Sep 2007 Location: London Posts: 659 Thanks: 129 Thanked 26 Times in 24 Posts	Agreed, this is one of the reasons I will be getting part No. LKJ100992L- Manifold Gaskets shortly. As you suggest, SD1too, these reside between the aluminium inlet manifolds and where they mate with the Head. Indeed there is a coolant ladder between both metal elements. Accordingly Coolant can leak either internally or externally as a result of these gaskets failing. And I suspect in my case internally, and is the cause of an increased amount dark brownish mayo in the vicinity of the Oil Cap together with the need to top every couple of days. __________________ To do list: Aux Drive Belt ....... Sept 2017 Kaiser Alumium Stat Housing ....Jan 2017 Rear o/s wheel bearing set changed.....Aug 2014 Cam & Aux Belts...May 2014 Tazu Inner tie rod ends...May 2014 Need Timing Belts changed...done April 2014 Front Shocks and Strut Bearings ....done Mar 2014 Polybushes to Wishbone Arms.....done Mar 2014 Handbrake compensator changed...done Oct 2013 Exhaust Back Box a.......done 16/8/13 Quality Front Drop Links...done 16/8/13 Rear Springs ..done 16/8/13

18th May 2011, 11:23	#2
Dimlow Newbie Rover 74 club Join Date: Mar 2010 Location: sittingbourne Posts: 12 Thanks: 0 Thanked 0 Times in 0 Posts	Well I stuck Radweld Ultra in it the leak stopped.

19th May 2011, 07:16	#4
Dimlow Newbie Rover 74 club Join Date: Mar 2010 Location: sittingbourne Posts: 12 Thanks: 0 Thanked 0 Times in 0 Posts	well , yes i think is has a water pipe to the inlet manifold, but i thought if that leaked, it would leak into the V , but its dry now.

20th May 2011, 10:10	#7
Lates This is my second home Jaguar XE Join Date: Nov 2006 Location: Coventry Posts: 4,321 Thanks: 56 Thanked 59 Times in 55 Posts	Water pump leak can also end up on the bottom of the sump / oil filter area