Gunson G4074 Colortune Single Plug Kit 14mm

Product Information

It is therefore an excellent detector of small percentages of oxygen and the electronic control unit (ECU) is able to continually adjust above and below the point at which the sensor has an output. The ability of the ECU to learn and adjust the programmed map of information stored in its memory, adds a further precision of control. Both of the links show exactly what I described: a removable nipple which threads onto the male threaded terminal at the top of the plug, so I don't know why you're getting so het up. Could I get one of these allegedly big female nipples (Ooer Mrs) and fill it with solder, then drill it out and get the adaptor thread to self-tap into it? After making an adjustment or revving the engine, allow at least 10 second for it to stabilize. Adjustments to mixture may not be visible immediately.

Inside an internal combustion engine those same coloured flames are present though not normally seen. These leaner settings progressed with engine developments to give economy with low exhaust emissions. Zo kan het benzineverbruik, de uitstoot van schadelijke gassen worden verminderd en werkt uw motor goed Deze set bevat de adapter voor korte valse bougie M14 - andere diameters en sets bestaan voor de diameters M10-M12-M14 lang-M14 kegelvormig en M18 Adjust at idle: the profile of the needle on SU’s is what determines the mixture up the rev range. Assuming the correct needle, then correct mixture at idle will properly set mixture at all revs. However, once idle mixture is set properly you can rev slowly to 2,000 rpm to verify. Open the throttle very slowly to bring revs up. Never snap the throttle.Carbon monoxide levels stay low because there is plenty of oxygen available to convert it to carbon dioxide.

Extension H.T. lead incorporating an end suitable to connect either Champion or Continental Bosch type suppressor caps (clip or thread). A rich and easily ignitable mixture is also provided for starting a cold engine. If a manual cold start device (choke) is fitted, a yellow flame should be visible in Colortune when this is operated. As Colortune allows you to view the burning of the fuel air mixture, most of the faults observed during its use will be mixture / fuel system related. However, there are other faults which affect efficient combustion and these will also be easier to diagnose. For example, an engine misfire which occurs despite the mixture being correct can be identified as an ignition or compression fault. A gas analyser gives an average reading of all cylinders, and no diagnosis of faults or setting errors which affect mixture distribution. This type may have two fixed choke carburettors combined in one casting to provide either - A twin choke carburettor where both throttles open simultaneously -generally for improved power output (two twin choke carburettors may be fitted to a high performance four cylinder engine).A rich and easily ignitable mixture helps to avoid this, so it is common to see a yellow combustion flame with rapid engine acceleration. As described in the original post, they don't ALWAYS, ALWAYS come with one here, because I bought one a few years ago and it didn't have one, just the bare thread. The usual car plugs here don't have that type of nipple, as shown in the linked picture. The other type of nipple is often used on motorcycles here. This type has a "female" threaded hole in the base which accepts the "male" threaded rod that is in the top of the complementary type of spark plug. I THINK these spark plugs are often supplied without the nipple, but I've only bought one once, so this practice probably isn't "universal" either. Determination of the quantity of air going into the engine is itself a difficult task under conditions of varying temperature, varying pressure, and with extreme disruption to the flow caused by valves opening and closing at an incredible rate.

A high speed fuel feed and adjustment (main jet and main mixture screw) normally located closer to the inlet air cleaner mounting flange.The main fuel discharge feeds into a venturi shape, whose restriction (a fixed size choke) gives a low pressure to pull the fuel in. A constant depression (low pressure) is maintained on a tapered needle and jet system which is attached to the air valve/carburettor piston.This air valve rises as the throttle is opened and then at full throttle it will continue to rise further as the engine speed also increases.This gives accurate mixture control over the whole range of operation. Enrichment for acceleration conditions is provided by controlling the rate, at which the air valve rises, with an oil damper, (the oil may require topping up regularly).Modern engines with multipoint injection systems, and earlier high performance car engines with twin or multiple carburettors, have a lot in common with the example of the motorcycle given previously. They are quite good, you do need to use them in a darkened garage to see what is happening but its is good for finding a good burn mixture. Its a matter of turning the mixture screw to richen the mixture(you will get a nice yellow burn in the plug) then slowly turning it to weaken the mixture until you get a nice deep blue. If you go to far the other way the flame will go light blue, so it is a matter of experimenting to get it right.

Very simple carburettors found on small motorcycles and garden machinery may have no acceleration device on the carburettor and will need a richer mixture setting at idle to avoid engine stalling or a "flat spot" during rapid acceleration. The development of sophisticated electronic control systems plus a robust exhaust oxygen sensor allowed the three way exhaust catalyst to be introduced. When there is too much air in the mixture, it becomes more difficult to ignite, burns slower, and is therefore less efficient.

To assist with flame visibility, park your car in such a way that the engine is in the shade, (or you may use the viewerscope attachment). The major diameter of the Colortune (0.5498") was greater than the maximum set out by the "SAE" and "Revised British" Standards. I brought this to the attention of both BAI and Gunson, the manufacturer in England. Gunson claimed that the measurement that I provided them with fell right within THEIR tolerances of 0.5455" to 0.5505". Sure enough it does; unfortunately THEIR tolerances didn't coincide with neither the "SAE" or "Revised British" standards. I questioned Gunson as to the source of their standard but no response as of yet. As far as I can tell its complete apart from the bottle of cleaning fluid, but the connector to the ignition lead has a threaded end which doesn't, on its own, make a good connection. The carbon in the fuel burns with oxygen in the air to produce carbon monoxide (CO), which then burns with more oxygen to produce carbon dioxide (CO2) Extension H.T. lead incorporating an end suitable to connect either Champion or Continental Bosch type suppressor caps (clip or thread)