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Timing belt(s) replacement tips
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OliverRR91
 


Member Since: 03 Oct 2022
Location: Cambridge
Posts: 11

United Kingdom 2016 Discovery 4 3.0 SDV6 Graphite LE Auto Santorini BlackDiscovery 4
Timing belt(s) replacement tips

Hello

I'm looking into how to replace the timing belt, oil pump, water pump, HPFP belt & aux belt on my Discovery 4 3.0 SDV6 as it's approaching 7 years old.

I'm looking for a comprehensive list of all components I require to complete & the best tools to make life easy DIY.

I'm also after any quick tips, in particular how to remove the fan shroud which from "It's LR Time" video looks time consuming.

I've read several threads:
Disco_Mikey's - TDV6 timing belt - How To...
Pete K's - Oil Pump Replacement

My parts list so far:
Dayco timing belt, tensioner & 2x idlers
Dayco HPFP belt & tensioner - Doesn't seem to require the locking tool due to the belt having timing marks
Focomo oil pump
Proflow water pump
Genuine LR crankshaft seal & crankshaft bolt

My "special" tool list:
Timing pin set - Laser or Sealey?
Crankshaft seal tool

Thanks in advance
Ollie  
Post #23215176th Jan 2023 4:40 pm
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Gary_P
 


Member Since: 03 May 2016
Location: Kent
Posts: 1664

Ukraine 2016 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4

I was advised that my oil pump didn’t need replacing by my trusted indi when I had mine done last year. Apparently there was a design change so no need. Gary
-------------------------------------------

Discovery 4 HSE 2016MY  
Post #23215326th Jan 2023 7:17 pm
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popsdosh
 


Member Since: 09 Nov 2009
Location: cambs
Posts: 442

United Kingdom 2016 Discovery 4 3.0 SDV6 Graphite LE Auto Corris GreyDiscovery 4

Ditto on oil pump Gen2 engines have a different oil pump to the earlier ones .
Why mess with the crankshaft seal unless you have an obvious leak?

The best advice I would give is by the time you have bought all the bits and pieces and looked at all the videos and if you have any doubts about your capabilities as a mechanic let somebody else do it as the consequences of a mistake are to high.  
Post #23215877th Jan 2023 8:29 am
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Shamrock
 


Member Since: 16 Jun 2022
Location: South Kerry
Posts: 114

Ireland 2011 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Don't you plan to body off for HPFP belt ?
Perhaps you have to add a two posts lift in your tool list ? Rolling Eyes  
Post #23215977th Jan 2023 10:04 am
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OliverRR91
 


Member Since: 03 Oct 2022
Location: Cambridge
Posts: 11

United Kingdom 2016 Discovery 4 3.0 SDV6 Graphite LE Auto Santorini BlackDiscovery 4

A two post lift is the dream!

I plan to use an endoscope for the HPFP belt, struggling with the body on scratching my arms as I go.

I appreciate the design change regarding later oil pumps however with over 50k miles on now and while the timing belt will already be removed, I'd like to replace it while I've got the opportunity.

No one else will look after your car as well as you do so I'd like to work on mine myself.

Cheers
Ollie  
Post #23216077th Jan 2023 10:38 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20841

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Shamrock wrote:
Don't you plan to body off for HPFP belt ?
Perhaps you have to add a two posts lift in your tool list ? Rolling Eyes


It's not a body off for a fuel pump belt Thumbs Up My D3 Build Thread

TDV8 Retrofit Build Thread  
Post #23216087th Jan 2023 10:46 am
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10676

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

With only 50k miles On it, maybe do the oil pump at the second belt change ?

You will be well practiced at the other stuff then.  
Post #23216157th Jan 2023 11:03 am
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Shamrock
 


Member Since: 16 Jun 2022
Location: South Kerry
Posts: 114

Ireland 2011 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Disco_Mikey wrote:
Shamrock wrote:
Don't you plan to body off for HPFP belt ?
Perhaps you have to add a two posts lift in your tool list ? Rolling Eyes


It's not a body off for a fuel pump belt Thumbs Up


Very complicated on a D3

https://www.youtube.com/watch?v=gL41G1o8nW4&ab_channel=LRTIME

Heard that's quite impossible on a D4... 

Last edited by Shamrock on 8th Jan 2023 12:01 pm. Edited 1 time in total 
Post #23216767th Jan 2023 4:29 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20841

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Not complicated on a D3, definitely possible Thumbs Up

Done plenty of them My D3 Build Thread

TDV8 Retrofit Build Thread  
Post #23217017th Jan 2023 6:27 pm
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Captain Crosscheck
 


Member Since: 03 Sep 2021
Location: Oslo
Posts: 340

Ukraine 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

I agree with Disco Mikey. He's a pro, so no worries for him, but it's not that hard to do. Getting the starter out was worse than doing the rear belt... But be prepared for some scarred-for-life forearms Laughing  
Post #23217237th Jan 2023 8:07 pm
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OliverRR91
 


Member Since: 03 Oct 2022
Location: Cambridge
Posts: 11

United Kingdom 2016 Discovery 4 3.0 SDV6 Graphite LE Auto Santorini BlackDiscovery 4

I've obtained a quote from LR which has confirmed part numbers, interesting with my car being Gen2 some of the parts are significantly more expensive than Gen1 equivalents.

Can anyone confirm, is Gen2 EU6 (adBlue) 2015/2016 then onto D5 etc?

Am I right in thinking LR redesigned the oil pump & water pump for D4, and again for D4 Gen2.

LR078913 BELT - TIMING
1311306 KIT - DRIVE BELT
LR069054 KIT - FUEL PUMP DRIV
LR096231 PUMP - OIL
1102415 SEAL - CRANKSHAFT
LR013377 BOLT - HEX.HEAD
LR089625 PUMP - WATER
LR071408 V-BELT

Thanks
Ollie  
Post #232214810th Jan 2023 1:54 pm
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6308

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

The D4 is a lot tighter in room than a D3, for both front and rear belt access, there is a lot more to come off when doing the rear belt on the D4,some very troublesome wire clips and brackets, just take you're time.

Flack Thumbs Up  
Post #232219610th Jan 2023 6:59 pm
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