Re: 1984 Honda Aero
Posted: Wed Nov 11, 2015 6:22 pm
This has nothing to do with a 1984 Aero, but I'll add this reply here as this is where the pictures are. The pictures are appropriate to the Express SR I am working on this week.
I have a question about two pictures with the clear blue hoses earlier in this thread. Looking at the first photo, is it true that when the engine is cold, fresh air from the small bystarter filter chamber on the far left flows through the fittings on the carb, and gasoline gets sucked out of the carb, and so an air/gasoline mix flows through the top clear blue hose to the valve on the right and then through the middle clear blue hose into the vacuum fitting on the manifold? Is it also true that when the engine is fully warm, clean air flows from the small bystarter filter chamber on the left of the photo through the clear not-blue hose to the valve on the right and then through the valve back to the vacuum fitting on the intake manifold through the clear blue hose in the middle of the picture?
If so, then the second photo is not a good fix as the mixture would seem to be too rich without the clean air coming into the intake manifold via the non-blue clear hose.
Likewise, simply capping off the two bystarter hose connections on the carb, and also capping off the vacuum connection on the intake manifold, would result in the same too rich condition when the engine was warm?
It is hard to believe that the correct mixture is obtained when there is factory designed air leak in the intake manifold. I must be missing something. Maybe when the engine is warm, both the clear non-blue hose and the blue clear hose are blocked off at the valve on the right?
I have a question about two pictures with the clear blue hoses earlier in this thread. Looking at the first photo, is it true that when the engine is cold, fresh air from the small bystarter filter chamber on the far left flows through the fittings on the carb, and gasoline gets sucked out of the carb, and so an air/gasoline mix flows through the top clear blue hose to the valve on the right and then through the middle clear blue hose into the vacuum fitting on the manifold? Is it also true that when the engine is fully warm, clean air flows from the small bystarter filter chamber on the left of the photo through the clear not-blue hose to the valve on the right and then through the valve back to the vacuum fitting on the intake manifold through the clear blue hose in the middle of the picture?
If so, then the second photo is not a good fix as the mixture would seem to be too rich without the clean air coming into the intake manifold via the non-blue clear hose.
Likewise, simply capping off the two bystarter hose connections on the carb, and also capping off the vacuum connection on the intake manifold, would result in the same too rich condition when the engine was warm?
It is hard to believe that the correct mixture is obtained when there is factory designed air leak in the intake manifold. I must be missing something. Maybe when the engine is warm, both the clear non-blue hose and the blue clear hose are blocked off at the valve on the right?