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Diesel Leak - HPFP
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Chris1573
 


Member Since: 12 Feb 2021
Location: Stroud
Posts: 196

United Kingdom 2008 Discovery 3 TDV6 Commercial XS Auto Loire BlueDiscovery 3
Diesel Leak - HPFP

Hi all got the disco up on a ramp today and there is diesel leaking somwhere. Thought it might be an injector return pipe but they are all dry. However the HPFP is wet with diesel to perhaps a fitting onto the pump is leaking. Need to take a look tomorrow when its light, wondering if anyone knows of the most likely issue.

Thanks.  
Post #226644710th Dec 2021 6:10 pm
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aja4x4
 


Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459

United Kingdom 2005 Discovery 3 TDV6 SE Auto Zambezi SilverDiscovery 3

The pumps can leak if the bearings are worn and has been know to catch a light if ignored Andrew

D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE  
Post #226646510th Dec 2021 7:40 pm
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Chris1573
 


Member Since: 12 Feb 2021
Location: Stroud
Posts: 196

United Kingdom 2008 Discovery 3 TDV6 Commercial XS Auto Loire BlueDiscovery 3

Thanks Andrew, I am hoping it’s one of the pipes leaking as it seems to be damp with diesel on the front of the pump as you look at it from the front of the disco. If it were the shaft seal then I assume it would leak into the belt cover and then down the back of the engine. Will see tomorrow.  
Post #226654011th Dec 2021 1:18 am
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aja4x4
 


Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459

United Kingdom 2005 Discovery 3 TDV6 SE Auto Zambezi SilverDiscovery 3

Yes thats correct, there is also a fuel cooler on the top of the oil cooler that may be leaking and running to the back of the engine. Andrew

D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE  
Post #226655711th Dec 2021 9:06 am
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Chris1573
 


Member Since: 12 Feb 2021
Location: Stroud
Posts: 196

United Kingdom 2008 Discovery 3 TDV6 Commercial XS Auto Loire BlueDiscovery 3

So definately fuel weeping here...



Guessing this is the steel pipe that should be replaced with a new one if ever removed so probably hasn't been at some point in the past.  
Post #226658511th Dec 2021 1:09 pm
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