Re: Done it ! (archive)

You could put a pressure gauge in the line (between the fuel rail and the inlet hose is a good place) and monitor the pressure (you can leave the gauge connected literally for days if you wish-just make sure it is not in a mechanically precarious place when the hood is closed). Check the pressure after the car sits for a while (the Bentley has a bleed-down chart I believe, or it is in other books on Bosch fuel injection). If it IS doen, you can verify that this is the reason for the harder hot start by running the fuel pump before cranking by jumping terminals 30 and 87 on the fuel pump relay socket.
Most cars DO crank a while (maybe 3 revolutions or so) before they start when hot so I wouldn't worry about it personally.
Bob

Replaced the start injector this morning (LJetronic - the one you can't see and need double-jointed fingers to do !). Now starts instantly on a cold start.
Thanks to help and advice from this board.
When warm/hot, if I leave the car for a few hours, it has to churn over for some seconds before firing. Presumably this is due to pressure loss from the fuel distributor rail?
Is this just a matter of replacing the Pressure Regulator or are there other sources of leakage ?
There are NO fuel leaks and I don't think any over-rich cylinders which might be caused by leaky injectors. When I changed the start injector (after standing overnight), the distributor rail was full of petrol, but not under pressure.
Regards from Jim B

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