please help me guys

king_j · Post by **king_j** » Sat Mar 06, 2004 7:09 pm

i ahve a few things that i need sorted on this swp, its nearly done, but i need your help.

things like the fuel line does it have a return as i cant find one?

what goes onto the end of the fuel pressure regulator?

volvofox · Post by **volvofox** » Sat Mar 06, 2004 7:22 pm

wish i could help you. on most 80 ties turbo's there is a fuel gas recirculation system, it sucks of the gas above the fuel in the tank, gets it through a carbon filter and uses it again. In my car the filter sits covered up in front of my right front wheel.

One advice is to download the parts catalogue on dragons site and search for fuel parts. they mostly come with "exploded vieuws" in which you easyly get your answers.

I also feel your action is to be respected aldough its a "waiste" of good 480 parts.

I think you are neglegted by some club members, and that is unfair.

I can't give you your answer, but hope this tip will get you further.

king_j · Post by **king_j** » Sat Mar 06, 2004 7:31 pm

thanks m8, ive got both the wiring diagrams and parts booklets from the site, but none give acurate enough info,

i realise the others dont want to help me as i pissed them all off with all my qeustions at the start and i have apologised for it, but i guess its too l8 (as all of them have blocked me on msn).

cheers for the help though fella.

dbsvolvos · Post by **dbsvolvos** » Sat Mar 06, 2004 7:34 pm

the fuel pressure regulator goes back to the tank , ie the return line , so you should have one on your renault laguna - if not something weird is going on .

king_j · Post by **king_j** » Sat Mar 06, 2004 7:42 pm

ok thats ok i have a return on the laguna but i wasnt sure why it was on the volvo( i thought the return pipe had to have fuel going through it.)

so on the fuel pressure regulator theres the hose from the manifold and the return to the tank?

mogge · Post by **mogge** » Sat Mar 06, 2004 9:03 pm

Hi!

At the rear of the regulator the hose is the return to tank, in the front a hose to the inlet mainfold. This adjust the regulator to have av balanced overpressure to the mainfold, when pressure wariates in the mainfold the fuelpressure is adjusted to ensure the same amount is injected.

The inlet to the regulator is by the fuelrail, the same as the injectors are mounted to. Pics http://volvo480.kicks-ass.net/servlet/u ... icle&id=26 (sorry in swedish)

The evaporvate system with the colcanister make sure tha no fumes from the tank reach out into the open

Regards Jonas

king_j · Post by **king_j** » Sat Mar 06, 2004 9:57 pm

also does anyone know where the fuel pump wires in on the loom, as i have not life from my fuel pump at turn over, and as i still have the laguna loom and the volvo loom just wondered if anyone know if its on th lighting loom of the 480 or the engine loom.

Murf · Post by **Murf** » Sun Mar 07, 2004 4:27 pm

if you fancy a wee drive you can come and check on my turbo. or get the bus if you dont sort the fuel pump by then!!

king_j · Post by **king_j** » Tue Mar 09, 2004 12:45 am

right see the pressure regulator does it had fuel flowing through it, i.e. fuel that isnt used in the rail, this is throwing me as from the diagrams and prictures it looks like its just mounted ont he end of the rail and the only things it uses is the return to fuel and the vacum to the manifold...

where does all the unsed fuel goto.

and how does the system work?

pol · Post by **pol** » Tue Mar 09, 2004 12:54 am

Well the way i saw it which may be completely wrong!!,, is you have the fuel pumped through the injector rail, which, once at the other end, needs to meet some resistance to pump the fuel through the injectors. The remaining fuel is returned to the tank. It's controlled by the vacuum to vary the amount of fuel being used / returned, under different loads.

This right?

pol

king_j · Post by **king_j** » Tue Mar 09, 2004 1:22 am

yeah but wheres it returned through

it must go back down thw return pipe, and to do so must pass through the regulator.

pol · Post by **pol** » Tue Mar 09, 2004 9:45 am

Well one end of the standard regulator plugs directly onto the rail, one is obviously the vacuum, the remaining connection on the regulator must be the return. Or go buy an FSE.

pol

king_j · Post by **king_j** » Tue Mar 09, 2004 11:02 am

tis ok just been out and looked, the missing part is actullay hidden under the rebulator if you look closly youll see a tapped end coming from the rail that the regulator screws onto.