The 1300 xflow in the Gemini is still playing up and I am at my wits end.

The original builder, in his wisdom, decided to remove the mechanical pump and fit an electric one.

When driving the car everything is fine in 1st gear. In 2nd gear above 4000rpm the engine becomes hesitant. In 3rd at 3000rpm the engine loses all power, as if suffering fuel starvation. The engine is at the point of stalling and you have to dip the clutch and wait for it to pick up again.

Firstly I changed the condenser as apparentely these are prone to causing similar problems. The fuel pump is mounted at the front, originally on top rail level of the chassis. I have moved it to the bottom rail in case the fuel is not actually reaching the pump. I have tried running with no filler cap in case a vacuum is forming in the tank. I fitted a pressure regulator and removed it again (on tickover the engine was running a bit rich The carb is a DGV twin choke off a mexico and has been overhauled. I have checked the air filter and it is still as new.
anyone got any other suggestions? I am contemplating moving the pump to the rear of the car or even refitting a mechanical pump but firstly has anyone got any other suggestions? I have been trying to cure this now for 3 weeks and it is driving me absolutely mad.

What sort of pump are you using?

I had similar problems and in the end the pump was faulty

I changed it for a facet solid state one and all is fine now.

Cheers

Mark

Also I had some dodgy spark plugs which gave a misfire at higer revs under power but were ok at sensible speeds.

Very tricky to track that one down....

[Edited on 25/5/05 by mookaloid]

If you took it to somewhere with a diagnostic system and a rolling road they would find the problem pretty quick.
I'd be surprised if it wasn't worth it

was in a 2l zetec mk2 escy once all was fine till u pulled 5th gear then u thought she was runnin outta fuel

turned out crank postion sensor cable was cable tied plug leads couple o snips and repositioned it it was fine

quote:

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Originally posted by johnston
turned out crank postion sensor cable was cable tied plug leads couple o snips and repositioned it it was fine

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Jon,

Rolling road found both my problems as above.

Cheers

Mark

Looks like I've cured it. I partly stripped the carb and checked the floats. They were set with 5mm too large a gap. I'm guessing that under load the engine was drawing fuel faster than the float chamber was filling. The floats were allowing the level to get too low. Would I be right? It certainly seems to be running better.

sounds like a good diagnosis.
If you are VERY careful, it is possible to fine tune the full throttle mixture by float adjustment, but normally +/-1.0 mm is the max.




Enjoy.