YEP,IN LINE FUEL FILTER(CLEAR PLASTIC) IS ALWAYS A GOOD IDEA.THAT WAY YOU AN SEE WHAT'S HAPPENING,WITHOUT HAVING TO REMOVE THE FUEL LINE,ESPECIALLY WHEN IT'S HOT .
IF IT STILL DOES THIS,AFTER A NEW FUEL PUMP AND DIAPHRAGM?
CARRY HALF A GALLON OF FUEL AROUND(IN A PETROL CAN,WITH LONG NOZZLE) FOR WHEN THE CAR STOPS/BREAKS DOWN NEXT?
REMOVE THE BRAKE SERVO RUBBER PIPE FROM THE TOP OF THE INLET MANIFOLD,POUR HALF AN 'EGG CUP' OF FUEL INTO THE INLET MANIFOLD VIA RUBBER GROMMET IN THE TOP OF THE MANIFOLD(SMALL FUNNEL HELPS) REPLACE SERVO RUBBER PIPE,AND CRANK THE ENGINE.
IF IT STARTS IMMEDIATELY,THEN ITS DOWN TO FUEL/EVAPOURATION. IT MAY ONLY RUNS FOR 4-5 SECS,OR THIS MAY BE ENOUGH TO 'FOOL' IT,AND KEEP IT RUNNING.
OTHER ISSUES I HAVE EXPERIENCED,WHEN THE ENGINE IS HOT,CAN BE CAUSED BY CARBON/VARNISH BUILD UP ON THE OUTSIDE OF THE ALLOY PISTON,INSIDE THE CARB, MAKING IT STICK IN THE 'OPEN' POSITION. THE ENGINE THEN FLOODS,AND WILL NOT START.
THIS CAN BE CHECKED BY REMOVING THE PLASTIC INTAKE PIPE,AND FEELING INSIDE THE STROMBERG WITH A FINGER,OR SHINING A TORCH,WHEN THE ENGINE IS HOT.THE VARNISH CAN BE CLEANED OFF CAREFULLY WITH SOME P1500 WET AND DRY,USING WD40 TO LUBRICATE THE P1500,WHILST THE DIAPHRAGM IS BEING REPLACED.
INCIDENTALLY, FOR OUR READERS BENEFIT? AN 'ELUSIVE' ENGINE OIL LEAK,DOWN THE SIDE OF THE NEARSIDE FRONT ENGINE BLOCK,AROUND CYLINDER HEAD HEIGHT?
THIS IS USUALLY CAUSED BY THE(ORIGINAL) FUEL PUMP,WHICH HAS SMALL HOLES PUNCHED IN THE BACKPLATE ON 'H'SERIES(B201). WHEN THE PUMP BECOMES WORN,ENGINE OIL DRIPS DOWN,THE ENGINE BLOCK,FROM THESE HOLES.
AS '99 PETE' SAYS,THE LITTLE PLASTIC SWIRL POT KIT,WAS FITTED TO THE LATER STROMBERG EQUIPPED CARS,I THINK 84-85.
THERE IS ALSO A SMALL 'SOLENOID' VALVE FITTED,ON THE BOTTOM OF THE LATER STROMBERG WHICH SHOULD SHUT OFF THE FUEL SUPPLY,TO PREVENT 'RUNNING ON',WHEN THE ENGINE IS SWITCHED OFF. TRY PULLING OFF THE SINGLE WIRE TO IT,WHEN THE CAR WON'T START?
THE VERY LAST OF THE N/A 90/99/C900 HAD I THINK 'PIERBURG' CARBS,ALTHOUGH I SUSPECT THIS WAS TO MEET 'EMISSION' REGULATIONS? PICTURE HERE
YOU CAN ALSO SEE,THEY ALSO HAD AN 'INSULATING' BLOCK,FROM CARB TO INLET MANIFOLD,MAYBE 10MM THICK,WHICH DETORIATED/CRACKED OVER TIME.