spluttery rangie??

[greendisco2]

Hi there , a mate at work has an 89 3.5 that when its been sitting for a while say a couple of hours to overnight that when he goes to start it , it just splutters and stops. If he revs the guts out of it a heap of black smoke comes out the back and then seems fine.Has new ECU,reco/new injectors,air intake was fixed and the fuel pump is fine.One thing he did say was the smell of petrol when it stalled.Can anyone shed some light.Tony

[mike 90 RR]

check the vacuum advance (physically suck on the vacuum line) & also engine timing

Failing that ...

Test coolant temperature sensor "in front of fuel rail
& also
Test Fuel temperature sensor "at front on fuel rail"



:)

[Rangier Rover]

check the vacuum advance (physically suck on the vacuum line) & also engine timing

Failing that ...

Test coolant temperature sensor "in front of fuel rail
& also
Test Fuel temperature sensor "at front on fuel rail"



:)
I was thinking flooding with cold start (sensors) They some time refuse to start at all. If caught pull the fuel pump relay plug off under driver seat and it will clear it's throat and start. Had my 89 do it to me in Mudgee:( I replaced sensors and has been fine since

Tony

[mike 90 RR]

I was thinking flooding with cold start (sensors) They some time refuse to start at all. If caught pull the fuel pump relay plug off under driver seat and it will clear it's throat and start. Had my 89 do it to me in Mudgee:( I replaced sensors and has been fine since

Tony

It struck me also as the likely suspect ... as the changing of injectors & ECU indicated that they are chasing flooding ....

I through the vacuum test bit in because it's likely that this is shagged also :(
as they don't last 20 years :angel:

[Rangier Rover]

It struck me also as the likely suspect ... as the changing of injectors & ECU indicated that they are chasing flooding ....

I through the vacuum test bit in because it's likely that this is shagged also :(
as they don't last 20 years :angel:

Very likely shagged but if a 3.5 they only have vacuume when stopping as so gutless it's normal to drive with 0 vacuum when trying to cruise:p

Vacuume + Diaphram on dizzy will only effect so called economy when trying to cruise or on trailing throttle.:eek:

[mike 90 RR]

Hi there , a mate at work has an 89 3.5 that when its been sitting for a while say a couple of hours to overnight that when he goes to start it , it just splutters and stops

On another line of thought .... Ask him if the following is also happening


Alternator light has a slight glow on the dash and gets brighter when headlights are turned on

Plus
Dull headlights
Electrics play up a bit
Door locks sometimes don't work

:)

[PhilipA]

I would suspect that it is the injectors. Many injectors will not take a reco and drool into the manifold when stopped.
The fuel pump should only pump for 3 seconds when ign turned on, then only resume when the flapper opens.ie the engine starts.
So just be sure that your friend does not turn the ign off and on several times as this just gives an extra slug of fuel each time. You should be able to hear the pump start and stop and the relay click. Also after a lot of familairity you can tell when the rail is pressurised by a change in the fuel pump note. If it is high pitched for quite a while then lower this means the rail has emptied either via the injectors or back to the tank through a leaking regulator or a dying fuel pump non return valve.
I know my regulator is dying as it does not now start instantaneously.
Regard sPhilip A

[willem]

G'day Tony,

IIRC the 89 model still had the cold start injector on the side of the plenum chamber. If so, they can often leak. The way to check is to clamp off the fuel line going to it. If this is the problem it will fix the black smoke, etc, but will make it a bit harder to start.

Willem