Re: Fuel Leaking

GM schrieb:
"roland franzius" <roland.franzius@xxxxxx> wrote in message news:f1bue2$g7q$1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
GM wrote:
I have a 1990 560 SEC European Spec ( Japanese Import ) that is absolute pristine condition.
I havn't been driving it over the winter, except for a good warm up run on a dry sunny day.
This afternoon I was going to take it out for a drive, started it and left it running in my drive while I moved another vehicle.
I noticed a puddle behind the right real wheel, and noticed something spraying under pressure out into this puddle from the underside of the car.
Suspected fuel, and smell test confirmed my suspicion.
In this location what could be the source of the fuel leak? And what would be the fix?

Any and all help or advice is greatly appreciated.
If its spraying with ignition on there is a leak in the presssure line after the pump. If its leaking ignition off replace all the rubber hoses between tank and pump.

--

Roland Franzius

It is spraying with the ignition on.
So is that a bad fitting, or do I have to replace the entire line?

Most probably corrosion at the double pump/filter connection aluminium/brass with alu fittings.

For cars older than 15 years I recommend replacing both pump and filter together with the matalic cage. You get an impression then of the state of rest of the assembly there.

Depending on the fuel history (lead, unleaded, additives) over the years in your country it may be nessecary to replace all the rubber parts too.

--

Roland Franzius
.

Relevant Pages

  • Re: Fuel Leaking
    ... Roland Franzius wrote: ... Suspected fuel, and smell test confirmed my suspicion. ... If its spraying with ignition on there is a leak in the presssure line after the pump. ... Depending on the fuel history over the years in your country it may be nessecary to replace all the rubber parts too. ...
    (alt.auto.mercedes)
  • Re: Replacing Injection pump-Engine block gasket
    ... I got around to replacing the gasket between the injection pump and the motor block. ... Below the hand pump - the fuel inlet from the tank via the small transparent filter. ... This one is the fuel return line that starts on the engine side of the injection pump, goes to the top of the main fuel filter and then attaches to the return line that goes back to the tank. ...
    (alt.auto.mercedes)
  • Re: Frustrations
    ... So off comes the carb for an overhaul and a fuel inlet ... Fuel pump doesn't, so it comes off too so we can get a new ... Bull Shit I'm thinking to myself. ... distributor drive gear. ...
    (rec.autos.makers.vw.aircooled)
  • Frustrations
    ... So off comes the carb for an overhaul and a fuel inlet ... Fuel pump doesn't, so it comes off too so we can get a new ... Bull Shit I'm thinking to myself. ... He warranties the pump and we head back to the car. ...
    (rec.autos.makers.vw.aircooled)
  • Re: Stalled! How to recover when fuel runs out???
    ... I just naturally figured that your motorbike had a gravity fed fuel ... Do you have a FUEL PUMP? ... helmet on and all the traffic and engine noise... ... Electric fuel pumps used to be simple. ...
    (rec.motorcycles.tech)