Discovery II Talk about the Land Rover Discovery II within.
Sponsored by:
Sponsored by:

Head or Valley gasket?

Thread Tools
 
Search this Thread
 
  #1  
Old 11-02-2015, 09:38 AM
sobieski's Avatar
5th Gear
Thread Starter
Join Date: Oct 2015
Posts: 5
Likes: 0
Received 1 Like on 1 Post
Default Head or Valley gasket?

2004 DII 4.6L 120K mi. bought used.

I am getting conflicting input - both from folks I respect and believe know what they're talking about - and need a tie breaker.

I have a coolant leak from both the front and back of the engine.
Can't see exactly where it's coming from.

No overheat, no smoke, no exhaust or oil in coolant (chemical block test), no coolant in oil.

BUT I am being told with "100% certainty" that my head gaskets are bad.

AND I am being told that with NONE of the above-mentioned symptoms, it is nigh impossible that the head gaskets are bad.

Any additional input would be much appreciated.

Apologies if this is a duplicate to some of you - I am reaching out to all the Rover folks I know.

-Mike
 
  #2  
Old 11-02-2015, 09:49 AM
zeroone's Avatar
Winching
Join Date: Jan 2014
Posts: 579
Received 8 Likes on 8 Posts
Default

How many miles arwon it, whats the servoxe history look like?
That being said it's a tough call, I would lean onot valley pan, but my gut will say headgaskets. Sometimes the best way to find out where the leak is, is to start taking it apart. Being that the front of the engine is dominated by the belt drive, you can remove the A/C, ALT, AND P/S to find out more. Once the corresponding brackets are out of the way, put a pressure test to it.
 
  #3  
Old 11-02-2015, 10:10 AM
drowssap's Avatar
Baja
Join Date: Feb 2011
Location: Boston Strong
Posts: 9,298
Received 317 Likes on 311 Posts
Default

how about you pressure test your vehicle instead of guessing?

if you truly have no CO2 in you coolant, it does not over heat, no coolant in the oil,
why would you consider head gaskets? as you say they all point away form head gaskets.

rent/borrow a pressure tester and check the valley pan gasket closely. jmho
 
  #4  
Old 11-02-2015, 11:27 PM
jfall's Avatar
TReK
Join Date: Mar 2012
Posts: 3,171
Likes: 0
Received 44 Likes on 37 Posts
Default

Replace the valley gasket.
If there is trouble after that then well.. you know what it is.

Valley gasket is not that bad to replace.
Not a walk in the park. but beats head gaskets.
 
  #5  
Old 11-03-2015, 07:55 PM
sobieski's Avatar
5th Gear
Thread Starter
Join Date: Oct 2015
Posts: 5
Likes: 0
Received 1 Like on 1 Post
Default

I think I found a pressure test kit that will fit onto the coolant reservoir.
All the kits at Autozone only have old-school radiator cap adapters.

Anyway, Thank You. I am going to do the pressure test asap and will report back.

Possibly related: I can see the water pump appears to be leaking as well.
Could this be just a coincidence?
OR ? Heck, I don't know.

Thanks, again. Stay tuned. Pressure test results TBD.
 
  #6  
Old 11-06-2015, 07:34 AM
sobieski's Avatar
5th Gear
Thread Starter
Join Date: Oct 2015
Posts: 5
Likes: 0
Received 1 Like on 1 Post
Default

Update:

I can see clearly the coolant leaking at the front is from the coolant pump.

I will change the coolant pump, then re-pressure test to decide head vs valley gasket.

Stay tuned.
 
  #7  
Old 11-06-2015, 07:39 AM
drowssap's Avatar
Baja
Join Date: Feb 2011
Location: Boston Strong
Posts: 9,298
Received 317 Likes on 311 Posts
Default

hopefully just a water pump
 
  #8  
Old 11-07-2015, 01:21 AM
zeroone's Avatar
Winching
Join Date: Jan 2014
Posts: 579
Received 8 Likes on 8 Posts
Default

Might want to consider removing the front cover behind the water pump and replacing that gasket as well. It'd be a good idea considering you will have access to it.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
FlyingZebra34
Discovery II
6
04-25-2013 08:04 AM
jpmiller
Discovery II
13
09-26-2012 06:32 AM
Dottieshusband
General Tech Help
2
09-14-2010 09:54 PM
JimScream
Discovery II
2
01-06-2009 02:01 PM
roverwoody
Discovery II
4
09-13-2008 03:12 PM



Quick Reply: Head or Valley gasket?



All times are GMT -5. The time now is 02:07 AM.