Lotsa pressure
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Cruiser
Joined: Jun 2009
Posts: 217
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From: Summerville,SC
Another thing I gotta take a look at tonight is the accelerator pump shut off valve. I had two different types and may have put in the wrong one.The carb is lower than the tank. If that's not seating,its constantly going to flow, right? The lights are starting to come on now!
Thanks.
Thanks.
Stellar HDF Member
Joined: Feb 2006
Posts: 3,035
Likes: 17
From: Houston Texas
Wait a second, do you mean that the spring is actually supposed to stick out of the carb between the gasket and the bowl? When I originally tore down the 1st bendix,that's the way it was and I just thought it was wrong. I could have easily misinterpreted my re-build instructions. The picures I have in my manual are of a non adjustable model.
Like I said..... I don't like the design, but that is how they did it. As long as it does not leak it will be fine. I just thought I would point this out in my earlier post.
pg
Stellar HDF Member
Joined: Feb 2006
Posts: 3,035
Likes: 17
From: Houston Texas
Another thing I gotta take a look at tonight is the accelerator pump shut off valve. I had two different types and may have put in the wrong one.The carb is lower than the tank. If that's not seating,its constantly going to flow, right? The lights are starting to come on now!
Thanks.
Thanks.
The carb is lower than the tank.
The fuel runs down into the float bowl.
The fuel level rises inside the float bowl. This raises the float at the same time of course.
When the float has risen to the exact spot you just set with a 3/16 inch drill bit as a gage, the needle is pushed into the seat. This shuts off the fuel flow from the tank.
When you run the engine, fuel is taken out of the float bowl and the fuel level falls.
The float falls too and this lets the needle drop out of the seat (due to gravity) which allows fuel to again run into the bowl from the tank.
The float begins to rise again and the needle gets pushed back into it's seat. This cycle repeats again and again.
Fuel leaves the float bowl to enter the engine at a lower flow rate than the fuel flows from the tank into the bowl.
If your float level is incorrect (to low a level), the needle never gets put into it's seat, so the fuel flow from the tank never shuts off. The result is the fuel level in the bowl comes up so far that it pukes out the overflow tube.
If the float level is set to high, this condition puts the needle into it's seat too soon and the carb (engine) is starved for fuel because there is not enough fuel in the float chamber to supply the engine with fuel.
pg.
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Cruiser
Joined: Jun 2009
Posts: 217
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From: Summerville,SC
Aah, yes. And the fuel level in the acc pump valve area can't raise any higher than the level in the float bowl without actuating the accelerator pump ...because when the float is set correctly, the float valve has seated and will not allow any more fuel into the carb. Regardless of wether or not the acc pump valve is correct. Thank you for ypur patience! I'm a gettin there.
Stellar HDF Member
Joined: Feb 2006
Posts: 3,035
Likes: 17
From: Houston Texas
Aah, yes. And the fuel level in the acc pump valve area can't raise any higher than the level in the float bowl without actuating the accelerator pump ...because when the float is set correctly, the float valve has seated and will not allow any more fuel into the carb. Regardless of wether or not the acc pump valve is correct. Thank you for ypur patience! I'm a gettin there.
My Bendix I bought from the manufacturer (Zenith Corp) and it has no such adjustment. It is a fixed one hole model which is fine. One less thing to deal with.
pg
Stellar HDF Member
Joined: Feb 2006
Posts: 3,035
Likes: 17
From: Houston Texas
pg
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Cruiser
Joined: Jun 2009
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From: Summerville,SC
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Thread Starter
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Cruiser
Joined: Jun 2009
Posts: 217
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From: Summerville,SC
float spring
Hey Pinion,
I've got the float set at 3/16" per your instruction. I have pulled the float pin and was preparing to re-install the float spring when I got to wondering..,the small tab on the spring...is that supposed to go on the same side of the float tab as the valve tab/catch? In my instructions it appears as though it does, but i cant tell in the image you sent. Is it supposed to aid in opening or closing the valve?
I've got the float set at 3/16" per your instruction. I have pulled the float pin and was preparing to re-install the float spring when I got to wondering..,the small tab on the spring...is that supposed to go on the same side of the float tab as the valve tab/catch? In my instructions it appears as though it does, but i cant tell in the image you sent. Is it supposed to aid in opening or closing the valve?
Stellar HDF Member
Joined: Feb 2006
Posts: 3,035
Likes: 17
From: Houston Texas
Hey Pinion,
I've got the float set at 3/16" per your instruction. I have pulled the float pin and was preparing to re-install the float spring when I got to wondering..,the small tab on the spring...is that supposed to go on the same side of the float tab as the valve tab/catch? In my instructions it appears as though it does, but i cant tell in the image you sent. Is it supposed to aid in opening or closing the valve?
I've got the float set at 3/16" per your instruction. I have pulled the float pin and was preparing to re-install the float spring when I got to wondering..,the small tab on the spring...is that supposed to go on the same side of the float tab as the valve tab/catch? In my instructions it appears as though it does, but i cant tell in the image you sent. Is it supposed to aid in opening or closing the valve?
The float spring has 2 ends.
One is long and straight. This rests against the gasket.
The other end of the spring has a U shaped bend and this goes on the same side as the float tab. The float valve has a clip on it that goes through the float tab. Hope that is what you are asking.
pg