Doing more maintenance on D2 and I knew of a valve at fuel filter housing.
Looking in RAVE I found an air bleed valve. Shopping around I also came across a non return valve which I cannot find anywhere in RAVE
JGS4x4 | Land Rover Discovery 2 Td5 Diesel Fuel Filter Non Return Valve - DA3950
Can anyone explain?
Does it exist and if so why is it not in the manual?
Have you changed it?
If so why? Was it for maintenance or were there symptoms and it so what were they?
Dave.
I was asked " Is it ignorance or apathy?" I replied "I don't know and I don't care."
1983 RR gone (wish I kept it)
1996 TDI ES.
2003 TD5 HSE
1987 Isuzu County
That NR valve is quite useless IMO cos it was fitted only to late 15+P engines, the 10Ps left the factory without it also it's a whole mess where it should really be cos on some Td5's it's in the front inner in others and in the rear inner port of the filter head and they all run the same like those without it. The air bleed valve is important to be in good shape cos that one can cause trouble. See this Disco 2 - TD5 fuel issues / starting issues fix | LandyZone - Land Rover Forum
Discovery Td5 (2000), manual, tuned
Dave.
I was asked " Is it ignorance or apathy?" I replied "I don't know and I don't care."
1983 RR gone (wish I kept it)
1996 TDI ES.
2003 TD5 HSE
1987 Isuzu County
So, now you know. If sierrafery says it ain't needed then ditch it. Knows his stuff he does.
JayTee
Nullus Anxietus
Getting involved in discussions is the best way to learn.
2000 D2 TD5 Auto: Tins
1994 D1 300TDi Manual: Dave
1980 SIII Petrol Tray: Doris
OKApotamus #74
Nanocom, D2 TD5 only.
Yeah. You are right about him knowing his stuff.
However, there is a link to another forum he posted. I had a peek and apparently earlier engines did not have it and it was fitted to latter engines.
There is a school of thought that maybe LR decided that it would be better with it, or that latter engines have a different fuel pressure regulator and maybe need it.
Either way I am not going to ditch it. I will for the time being just leave it.
When I get all my other issues sorted and I have time, I might take it out and see what happens.
Dave.
I was asked " Is it ignorance or apathy?" I replied "I don't know and I don't care."
1983 RR gone (wish I kept it)
1996 TDI ES.
2003 TD5 HSE
1987 Isuzu County
I have friends who have got rid of it when it was clogged on late engines then it reduced power a bit and they say it's no difference whatsoever compared to when it was there from new.
Discovery Td5 (2000), manual, tuned
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