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Disco 3 Woes!! help!! :D
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Lockey
 


Member Since: 13 Dec 2016
Location: Limerick
Posts: 111

Ireland 2005 Discovery 3 TDV6 Commercial Manual Mariana BlackDiscovery 3

yep, did that last night Smile

Someone told me bring the turbo with the head? is this easier or should i split it at the manifold?
  
Post #17762299th Feb 2017 1:20 pm
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defector
 


Member Since: 23 Feb 2009
Location: Greater Manchester
Posts: 1420

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Zermatt SilverDiscovery 3

On certain engines, if the pistons hit the valves, then the followers or the caps are designed to 'give' i.e break, to protect the valves/pistons from damage. In which case it is just a case of changing those parts.
Would it not be better to push those valves in to check that they return and are not bent.
Another way to check for bent valves is to stick a dial gauge on the top of the valve stem and measure it against a known good valve and see if there is any difference in length.

May save a lot of work.
  
Post #17762469th Feb 2017 1:49 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10367

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

No leave the turbo where it is.

I would try and leave the manifold on the car too.
Bolts can be undone once the EGR is removed thru the wheel arch
  
Post #17762489th Feb 2017 1:50 pm
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Lockey
 


Member Since: 13 Dec 2016
Location: Limerick
Posts: 111

Ireland 2005 Discovery 3 TDV6 Commercial Manual Mariana BlackDiscovery 3

defector wrote:
On certain engines, if the pistons hit the valves, then the followers or the caps are designed to 'give' i.e break, to protect the valves/pistons from damage. In which case it is just a case of changing those parts.
Would it not be better to push those valves in to check that they return and are not bent.
Another way to check for bent valves is to stick a dial gauge on the top of the valve stem and measure it against a known good valve and see if there is any difference in length.

May save a lot of work.


Yep, completely agree, it might be ok, but to be honest, i can get a known good head for peanuts so im just going to do a proper job and replace the whole lot while i have to opportunity Smile
  
Post #17762699th Feb 2017 2:49 pm
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Lockey
 


Member Since: 13 Dec 2016
Location: Limerick
Posts: 111

Ireland 2005 Discovery 3 TDV6 Commercial Manual Mariana BlackDiscovery 3

Pete K wrote:
No leave the turbo where it is.

I would try and leave the manifold on the car too.
Bolts can be undone once the EGR is removed thru the wheel arch


Ideal, ill hopefully get it off this evening and start the cleaning up process to put the new head on!
  
Post #17762709th Feb 2017 2:50 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10367

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

Even after draining the anti freeze coolant is still near the headgasket Confused

When the head is removed some coolant goes down the oil way.

The coolant sinks to the bottom of the sump.
Initially I was a bit surprised to see orange coolant coming out when I loosened the sump plug Shocked Laughing

Anyway a good time to change the oil.

EDIT: THERE ARE COOLANT DRAIN PLUGS ON THE SIDE OF THE ENGINE IF YOU WISH TO USE THEM.
ONE ABOVE THE ALTERNATOR BRACKET

Note how many notches your headgasket has at the front, and buy a similar thickness one.

I managed to get all the gaskets off ebay for about £100 as a kit.
Alot of the kits are missing a cam seal though. (actually as your only removing 1 head you will have enough)
 

Last edited by Pete K on 18th Nov 2017 10:44 am. Edited 1 time in total 
Post #17764049th Feb 2017 6:49 pm
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Lockey
 


Member Since: 13 Dec 2016
Location: Limerick
Posts: 111

Ireland 2005 Discovery 3 TDV6 Commercial Manual Mariana BlackDiscovery 3

M3DPO wrote:
-All injectors showed 999 (im assuming this is pressure related but not sure?:

The above measurements can only be taken at tick over, anything above 900rpm gives a 999 reading.


Yeah i later realised this was an irrelevant figure, my guess is that the same applies when the rpm is too low, as it was with my engine due to it running on 3
  
Post #177666610th Feb 2017 10:18 am
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10367

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

I used a bit of this stuff (from china) on the end cam caps


http://www.ebay.co.uk/itm/GENUINE-LOCTITE-...Sw6oBXEeHp
  
Post #177705911th Feb 2017 11:01 am
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10367

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

On your replacement head check the threaded holes to ensure no bolts broken off.

In particular the fuel rail mount holes and rear belt tensioner.
  
Post #177723511th Feb 2017 5:48 pm
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Lockey
 


Member Since: 13 Dec 2016
Location: Limerick
Posts: 111

Ireland 2005 Discovery 3 TDV6 Commercial Manual Mariana BlackDiscovery 3

Morning lads!

Just ordering gaskets today and am wondering a couple of things:

First off, my old head gasket had 3 tabs together and then one a bit further away, im assuming this is still a 4 tab gasket?

Secondly, im looking on paddock spares and nowhere is it mentioned that a particular gasket was for the left or right bank, are the gaskets suited to both banks?

Cheers!

C
  
Post #177795313th Feb 2017 10:17 am
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10367

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

yeah 4 tab gasket.

gaskets aren't handed
  
Post #177802313th Feb 2017 1:38 pm
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Lockey
 


Member Since: 13 Dec 2016
Location: Limerick
Posts: 111

Ireland 2005 Discovery 3 TDV6 Commercial Manual Mariana BlackDiscovery 3

Spot on pete! cheers!

one last thing, what thread pitch are the glow plugs? i think theyre m8 x 1.00 but not 100% sure.

(yes all three broke, no im having no fun drilling them out Very Happy )
  
Post #177802513th Feb 2017 1:40 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10367

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

I can't remember from memory
  
Post #177802813th Feb 2017 1:41 pm
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Lockey
 


Member Since: 13 Dec 2016
Location: Limerick
Posts: 111

Ireland 2005 Discovery 3 TDV6 Commercial Manual Mariana BlackDiscovery 3

No Worries, found it there, its M8 X 1.00 for future reference Wink
  
Post #177807113th Feb 2017 3:30 pm
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hugeviking
 


Member Since: 08 Jun 2010
Location: cotswolds
Posts: 1482

United Kingdom 2006 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

When you removed the old head was there any damage to valves etc ?

Andi.
  
Post #177822613th Feb 2017 8:29 pm
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