1983 Boxer fuel distributor questions

Very seldom do the distributors give problems
How did you check the other components? Did you put a pressure tester for system and control pressure? Did you pull the injectors and check the spray pattern for a perfect conical mist type of spray? If a few injectors shoot a straight jet or a random streams then they should be replaced.
With modern fuel having so little lubrication these injectors take a beating. You should be able to get all of your control press regulator and dist. overhauled, talk to your foreign car parts supplier

 

Perhaps the trouble might be caused by the other "distributor," as in ignition?

Have you checked the condition of your cap and rotor?

Boxers run lousy when the cap is full of moisture and corrosion.

Gary

 

Or if the mechanical advance is stuck in place.

 

have you checked all of the fuses? i was telling jtr a few weeks back about my issue where the car ran and almost sounded ok...but had no power. it turned out to be a fuse and i was off and running. i cannot be more specific but give all the front, glove, and rear fuse junctions a look.

 

HIgh HCs are unburnt fuel, if ignition is okay next check the fuel pressures of the CIS, might try a cleaner as you may have deposits clogging the injectors, could have a clogged fuel filter or bad fuel pump as well, the fuel dist would be last on my list

 

this was my problem.

 

Wouldn't hurt to try swapping the warm-up regulators too, although IMO it's more cost effective to just get the ($50~$70) K-Jet pressure gauge set-up and confirm/deny both the regulated supply pressure and the cold/warm control pressures (rather than doing a lot of labor, and there's no gaurentee that your "good" one, if that's the situation, is really that good). If the control pressure when warm is some wacky value, you can still get a decent warm idle (because, using the manual adjument screw, you can always get the "right" amount of fuel to be delivered for that one condition), but the fuel delivery vs airflow will not follow the intended design for other higher airflows.

If you did want to evaluate a fuel distributor's performance you'd need to either:

1. Find someone with the Factory set-up which measures the injector flow rate directly (at a given airflow plate deflection) with rotameters (first jpeg), or

2. Use a set of 100 mL graduated cylinders and measure the fuel volume delivered in a given time (at a given airflow plate deflection) to calculate the individual injector flow rates (second jpeg).

But get/rent/hire the pressure gauges and check the pressures per J.P.'s recommendation -- trying to troubleshoot a K-Jet problem without them is like trying to troubleshoot an alternator problem without a voltmeter.
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Maybe some bad fuel injectors ? The original factory ones are steel and they corrode over time and won't spray properly.

I've had all of mine replaced with newer style Bosch "brass" injectors.