Carb Tuning

[tompat]

Afternoon All

Having refurbished my Pierburg 2E3 carb using a kit from brickwerks.co.uk, a copy of haynes carb manual and some articles from clubgti forums, I now have the task of trying to adjust the carb to make my engine run that bit sweeter.
When I bought the van the oil breather was missing and I was driving it round with oil being chucked all over the carb, which led to a few problems not least was the choke getting stuck open and high emissions on idle.

So while I didn't adjust any settings or tried to put them back as accurately as I could where I did make adjustments, the past rpoblems may have led someone to adjust the carb to relieve the problems, so Im left with an engine that is reving its nuts off. So I was hoping some of you kind folk could give me some tips or point me in the direction of some articles on tuning your carb as I just have not managed to find any out there and whats available in the haynes is very vague.

Thanks

I have a 1.9DG waterboxer

[Fritz]

Sometimes general cleaning with solvents and an air line don't always sort out carburettor issues. More modern methods of cleaning include the use of Ultra sonic equipment which appear to be the way to go.

The process

In an ultrasonic cleaner, the object to be cleaned is placed in a chamber containing a suitable ultrasound conducting fluid (an aqueous or organic solvent) depending on the application.
In Aqueous cleaners, the chemical added is a surfactant which breaks down the surface tension of the water base. An ultrasound generating transducer is built into the chamber, or may be lowered into the fluid.
It is electronically activated to produce ultrasonic waves in the fluid.
The main mechanism of cleaning action is by energy released from the creation and collapse of microscopic cavitation bubbles, which break up and lift off dirt and contaminants from the surface to be cleaned. The higher the frequency, the smaller the nodes between the cavitation points which allows for more precise cleaning. The bubbles created can be as hot as 10,000 degrees and 50,000 lbs per square inch, but are so small that cleaning and removal of dirt is the main result.

Anyway provided you are happy that all the basics settings such as ignition timing, vacuum rate (advance/retard )etc,etc then all you are going to need is the use of a good 4 gas analyiser to set up the CO content, there is not much point trying to guess as it will only fail its next MOT when ever that is due.

Regards


Fritz,,,,,,,,,