GUNSONS GASTESTER PROFESSIONAL MANUAL FULL
It is an excellent full featured magazine produced 6 times per year by MBCA for it's members. The Star is the club magazine of the MBCA (Mercedes Benz Club of America). It's not heavy - probably about 3 pounds (1.4 kg) - though. I'd probably loan mine out to anyone local, but mailing it about would be a nuisance.
They may be, but I'm not familiar with a type of rental place that would have these. I certainly would if I thought one would be available. I didn't even think about renting an EGA. Now if I can call them six times a year without anyone figuring this out, I can see all the articles. I called MBCA, which is only a couple of miles from me, and the nice lady who answered the phone said she'd send me a copy of the magazine. They are apparently very useful for this. I plan to use the EGA on multi-cylinder motorcycle tuning. Bought Friday night, shipped on Saturday, arrived on Monday. The EGA was made by Gunson (in England, I think), and I got it from a company in Florida selling them on ebay. Now it runs very well, and I think my $150 was money well spent. I plan to drive the car awhile and then recheck and start to trouble shoot this problem. This seems like a significant difference to me, and indicates a problem with fuel delivery to one or more of three cylinders. I adjusted the idle mixture for one pipe (to 4.0%) and then checked the other pipe. The car has two exhaust pipes, of course, each servicing three cylinders. The use of an EGA for these adjustments is given in both the BBB and the Haynes manual. At this point, adjustments to the screw at the rear of the injection pump and the air screw can be commenced. The reading will fluctuate for a minute or so, and then stabilize. The pipe is inserted into the exhaust pipe and the car is started. It has a digital readout, and once the reading has stabilized, an adjustment is made to the meter so it reads 2.0%.īefore connecting the EGA it is recommended that the car be driven hard for a few minutes to flush out things and reach operating temperature.ĭuring the 20-minute wait for the EGA to stabilize, the engine will cool down a bit, but it will reach temp again during the testing. Before the car is started, the EGA is connected and allowed to sit for about 20 minutes. This tube fits into the exhaust pipe, and is centered in the pipe by coil springs attached to the pipe at 90-degree angles. It has a hose about a meter long with a metal tube at the end of the hose. The EGA connects via long cables to the car's battery for power. It probably took an hour and a half to do this the first time, including the 20 minutes or so required to allow the EGA to adjust to ambient conditions.Ī brief tutorial on what I learned and did: Ambient air is usually about 2% CO.
The correct range is 3.5 - 4.5%, so I am in the middle. The CO was around 8% when I started, and is now around 4%. The device worked well, I think, and now the car idles very well. There are a number of devices available that measure CO2, and other gases, as well as CO, but they cost over $3000.
GUNSONS GASTESTER PROFESSIONAL MANUAL PLUS
It cost me $140 plus 10 for shipping, but I justified the purchase of something to be used only rarely because it made sense as an alternative to giving a MB shop $150 to do something I could do. Finally, I bought an inexpensive exhaust gas analyzer (EGA), which measures only carbon monoxide (CO) at the exhaust pipe. I was having a dickens of a time getting my car to idle well.
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