The design and construc- tion can be seen from Figs. If you have any questions, call me at 70 or email me at This email address is being protected from spambots. The engine is fitted with two horizontal carburettors of type Stromberg 175 CD-2SE. The key word here is “OVERHAULED PROPERLY”. When a Marvel-Schebler is used on a tail-dragger, the fuel level in the bowl obviously does not touch the gasket thus eliminating the “fuel seep” condition.Īll in all, The Stromberg is an excellent little carburetor when serviced and overhauled properly. The Marvel’s float bowl holds a higher volume of fuel than a Stromberg and the float level is lower than a Stromberg’s. People ask “why does this happen on a Stromberg and not on a Marvel-Schebler carb. Note the fuel level at the 12 degree position…
Stromberg 175 cd 2 manual series#
9 Pics about Zenith Stromberg 175 Cd-2 Carburetor for Rebuild or Parts Triumph Tr6 : Jaguar C32973/C32974 - Stromberg 175 CD-2 Carburettors - Matched Set of, Jaguar Series II XKE 4.2 E-type Zenith/Stromberg 175 CD2 Carburettors and also Jaguar C32973/C32974 - Stromberg 175 CD-2 Carburettors - Matched Set of. The pictures show the fuel level in the bowl and at a 12 degree incline. Zenith Stromberg 175 Cd-2 Carburetor for Rebuild or Parts Triumph Tr6. This leak becomes evident by a small line of blue fuel dye at the rear and sides of the float bowl mating surfaces. The fuel eventually seeps thru the gasket and ends up with a very slight leak at the outer edge of the gasket. The gasket between the castings now gets wet and starts wicking up fuel from the float bowl. The fuel in the carb’s bowl now sits un-level and rests on the rear parting surface of the upper and lower castings. The fuel level, which was originally set in a “level” position on the flow bench, now sits at a 12 to 15 degree angle from level with the tailwheel on the ground. In replacing or fitting a new metering needle the shoulder must line up with the lower face of the air valve and the locking screw tightened fully. If examination of the needle indicates it is bent it should be replaced with a new one bearing the specified marking as detailed in the specification for the particular make and model of engine. In common with other products made from rubber compounds any contact of the diaphragm with volatile cleaners such as tri-chloroethylene should be avoided. If it is necessary to clean the diaphragm, use only clean rag. The outside of the air valve and the bore can be wiped clean with a rag that is moistened with paraffin or petrol but if the diaphragm has expanded one will have to allow it to dry for a few minutes before it will fit on the bead and recess for the locating tab. To remove the air valve assembly take off the top cover by undoing the screws 2 when the assembly with diaphragm can be lifted out of the main body. Pretty much the only other moving parts are the throttle flap you open when you press the throttle, the float and needle valve in the bowl so the carb doesn't overflow, the choke mechanism and in a Stromberg a bi metallic temperature compensator.Sticking of the air valve can be explained by dirt or carbon on the outside diameter of the air valve and the bore in which the air valve moves or if the metering needle is bent. Because the jet is tapered that enlarges the aperture through which the fuel flows. As the engine speeds up, and requires more fuel, the airflow caused the piston to rise. When the engine runs it sucks air over the top of the needle and puls fuel through it out of the jet. The jet is connected at the bottom to a fuel bowl. On the bottom of the piston there is a tapered needle.
Under the cover on top of the carb there is a piston, the Strom has a diaphragm, the SU doesn't. The Stromberg and SU carbs are very similar in how they work. Jeez, if you think a carb needs timing you do need to do some reading I could just wait for him to get back but reading up on how it works is always good my dad and i did fill up the carb with ATF before he left for germany. I hear lots of terms on websites ect but they all kinda expect you to already know the basics so missing that wont get you far.
Stromberg 175 cd 2 manual how to#
A general manual on carbs how they work and how to set them would be great to start with im a bit clueless when i'm looking at that thing mounted on the manifold
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