Member Since: 12 Feb 2021
Location: Stroud
Posts: 196
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.
10th Dec 2021 5:10 pm
aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2463
The pumps can leak if the bearings are worn and has been know to catch a light if ignoredAndrew
D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE
10th Dec 2021 6:40 pm
Chris1573
Member Since: 12 Feb 2021
Location: Stroud
Posts: 196
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.
11th Dec 2021 12:18 am
aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2463
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
11th Dec 2021 8:06 am
Chris1573
Member Since: 12 Feb 2021
Location: Stroud
Posts: 196
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.
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