PDA

View Full Version : Advice needed on fitting a diesel fuel filter



johnc18
25th August 2008, 11:00 AM
Back home from Darwin .
While I was up there I told my mate with a D3 about peterpam's $9000 bill after picking up a bad tank of fuel, and gave him a printout of peterpam's post .
He's ordered a raycor fuel filter as suggested . It'll be in in a couple of days, and he's taking it to a truck diesel repair workshop recommended by the raycor supplier .
He's just rung me .
He's seen a picture of one, and it seems like it's about the size of a loaf of bread, and he wants to know where to fit it . He says there's a spot (as I understood it, but I may be wrong), nearside, behind the radiator, but wonders if there's alternatives .
Has anybody fitted one of these yet ? Where did you fit it ?
If not, any suggestions ?
Roadwarrior said that you can periodically unscrew the bottom to let any water out, so it would have to be accessible .
When I used to work on cars, (home mechanic), and wanted to fit something in a crowded engine bay, with no available surface, I would occasionally make a bracket to suit, so it hung in the air between (say) the inner mudguard and the firewall .
So any and all suggestions appreciated . But it must be in a position where you can fit it, and where you can unscrew the bottom .
Thanks John

Blknight.aus
25th August 2008, 05:32 PM
this'll be fun....

most of the fuel filters are not rated for use in fuel lines that are pressurised to the pressures that are used by modern common rail engine that use an intank pump to get the fuel up to pressure for delivery to the injectors.

if the seal lets go it wont take long for the intank pump to empty the tank.

If your going top put it on the LP side of the system Id want it as close to the pump as possable so that it minimises the prime time during which the HP side of the pump will be running dry you may even want to consider getting one with a prime button on it for when you do need to bleed it so you can get fuel up without having to run the pump. the HP side does not like being run dry.


Best of luck with it tho.

johnc18
25th August 2008, 09:12 PM
Thanks Dave
I'll pass on the info, and he can discuss it with the diesel fitters .
But I'm puzzled .
John's ordered the filter from a truck supply company, and they said it would suit a D3 .
I don't know trucks, but wouldn't the new, modern turbo diesel trucks use high pressure systems ?
And wouldn't their filters therefore be high pressure ?

Cheers John

Blknight.aus
25th August 2008, 09:34 PM
nope the fuel system on trucks works thusly

tank-sedimentor (if fitted)-first filter-lift pump-second filter (optional) final filter-fuel injector pump-return to tank.... (naturally the injector pump pushes the fuel into the injectors and they return...

trucks have to go long and hard. so they use a very agricultural high flow low pressure pump to shift the fuel into the FIP and the the FIP takes care of the rest...

some trucks have 2 distinct fuel systems the first part is the low pressure side which is what I like to call the chassis side and it simply provides fuel to and circulates the fuel to the engine side fuel system which is usually a small tank that feed the more delicate engine side of the fuel system...

I copied the idea for fozzys WVO preheat system from this concept.

CaverD3
26th August 2008, 02:01 AM
Seff Efikkens have lots of problems with diesel, here are some samples of issues and potential fixes:

It is more complex than you think with a D3 to fit a filter.

DISCO3.CO.UK - View topic - Additional diesel fuel filter (http://www.disco3.co.uk/forum/topic22941.html)

DISCO3.CO.UK - View topic - Additional diesel fuel filter (http://www.disco3.co.uk/forum/topic22941.html)

DISCO3.CO.UK - View topic - How to stop those nasty diesel filter problems (http://www.disco3.co.uk/forum/topic13753.html)

DISCO3.CO.UK - View topic - Water, Dirt & Fuel - Filter (http://www.disco3.co.uk/forum/topic20369.html)

DISCO3.CO.UK - View topic - Replacing diesel filter - Advice needed please (http://www.disco3.co.uk/forum/topic24339.html)