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2.7 TDV6 timing belt damaged on front edge
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twr7cx
 


Member Since: 03 Mar 2019
Location: Tasmania
Posts: 148

Australia 2012 Discovery 4 TDV6 Base 5 Seat Auto Nara BronzeDiscovery 4
2.7 TDV6 timing belt damaged on front edge

Doing the timing belt on our (new to us) MY12 D4 TDV6 with the 2.7 engine. Just accessed the front and found that there is damage along the forward/front edge of the timing belt:






Looks like a lot of the belts rubber mess has gone into the idler pulleys:





The belt seems to be running hard agains the front edge of all the pulleys with some lip overhang on the idler pulley and belt tensioner pulley:





I'm replacing the belt, both idler pulleys and tensioner - any special considerations to avoid this or anything else to check regarding cause of?
 Mine - modified MY03 LT L318 Discovery 2a HSE Td5 15P
Hers - MY12 L319 Discovery 4 Lion 2.7L TDV6
Dads - MY98 LJ Discovery ES 3.9L V8 
 
Post #21843643rd Nov 2020 9:48 pm
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6224

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

The top picture of the cam pulley, check that the damper on that pulley is not worn, there might be play in it.

Flack Thumbs Up
  
Post #21843783rd Nov 2020 11:01 pm
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twr7cx
 


Member Since: 03 Mar 2019
Location: Tasmania
Posts: 148

Australia 2012 Discovery 4 TDV6 Base 5 Seat Auto Nara BronzeDiscovery 4

Thanks. Any tips for the process of checking the cam pulley damper? I've pushed, pulled and wriggled it as hard as I can and there is absolutely no movement happening.
 Mine - modified MY03 LT L318 Discovery 2a HSE Td5 15P
Hers - MY12 L319 Discovery 4 Lion 2.7L TDV6
Dads - MY98 LJ Discovery ES 3.9L V8 
 
Post #21843813rd Nov 2020 11:18 pm
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twr7cx
 


Member Since: 03 Mar 2019
Location: Tasmania
Posts: 148

Australia 2012 Discovery 4 TDV6 Base 5 Seat Auto Nara BronzeDiscovery 4

I've installed the new belt centrally on all the pulleys and cogs. Have pulled it through two full crank rotations and it seems to be tracking well.
 Mine - modified MY03 LT L318 Discovery 2a HSE Td5 15P
Hers - MY12 L319 Discovery 4 Lion 2.7L TDV6
Dads - MY98 LJ Discovery ES 3.9L V8 
 
Post #21843843rd Nov 2020 11:31 pm
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PROFSR G
 


Member Since: 06 Mar 2017
Location: Lost
Posts: 4578

Ukraine 2009 Discovery 3 TDV6 Commercial XS Auto Stornoway GreyDiscovery 3

Is there any damage or scoring to the inside of the timing cover?
 yµ (idµ - eAµ) ψ=mψ

 
 
Post #21844034th Nov 2020 4:26 am
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6224

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

They do tend to wear on that edge when the belt is old.

Flack Thumbs Up
  
Post #21844204th Nov 2020 8:32 am
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twr7cx
 


Member Since: 03 Mar 2019
Location: Tasmania
Posts: 148

Australia 2012 Discovery 4 TDV6 Base 5 Seat Auto Nara BronzeDiscovery 4

PROFSR G wrote:
Is there any damage or scoring to the inside of the timing cover?


Nope.


Flack wrote:
They do tend to wear on that edge when the belt is old.


This belt would be nearing the end of it's eighth year in service and 155,000km or so. With the near gear fitted everything looked fine so here's hoping!
 Mine - modified MY03 LT L318 Discovery 2a HSE Td5 15P
Hers - MY12 L319 Discovery 4 Lion 2.7L TDV6
Dads - MY98 LJ Discovery ES 3.9L V8 
 
Post #21845124th Nov 2020 9:35 pm
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