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Old 08-24-2015, 02:23 PM   #1
Joe/Ct
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Default Engine Stalling

This is a problem that I don't see being reported. While driving down the road, this has to do with the engine stalling when I put on the foot break. With the engine idling high rpm, there is no effect. When the rpms are near 600, the engine will stall when I put on the breaks. The stalling occurs for both clutch fully depressed or the tranny in neutral.
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Old 08-24-2015, 02:54 PM   #2
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Default Re: Engine Stalling

Check for a high current draw or short in the brake lights.

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Old 08-24-2015, 03:25 PM   #3
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Default Re: Engine Stalling

I was told that it had to do with the float level (I think that is the correct term) in the carburetor, my car would stall out every time I came to a stop unless I increased the throttle lever.

I had a couple other issues with my carb so I replaced it with a rebuilt from Berts, now I can drive with the throttle level all the way up with no stalls.
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Old 08-24-2015, 03:52 PM   #4
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Default Re: Engine Stalling

float level is common
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Old 08-24-2015, 03:52 PM   #5
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Default Re: Engine Stalling

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Originally Posted by Joe/Ct View Post
This is a problem that I don't see being reported. While driving down the road, this has to do with the engine stalling when I put on the foot break. With the engine idling high rpm, there is no effect. When the rpms are near 600, the engine will stall when I put on the breaks. The stalling occurs for both clutch fully depressed or the tranny in neutral.






I'm a little confused [ normal]. It only stalls while moving ? If sitting still, it doesn't ?
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Old 08-24-2015, 04:07 PM   #6
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Is it possible the brake pedal is contacting the battery cable??
Paul in CT
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Old 08-24-2015, 04:14 PM   #7
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Default Re: Engine Stalling

Joe,
As Mitch said it's common that a low float level can cause that issue.... which I believe is probably the issue. If you truly want to isolate any other electrical issue other than the primary ignition circuit disconnect the light harness from the generator and then try it again... that removes the light switch and tailights out of the picture. It is common that some light switch assemblies can cause issues when in use.

set your float to 5/8 when inverted ( float level in appearance) .
Best of luck.. let us know what cures the problem. Check all battery cables, electrical connections, etc. Poor battery cable connections that move when the brake pedal is applied also cause issues. Ensure no shorts are occuring.

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Old 08-24-2015, 05:23 PM   #8
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Default Re: Engine Stalling

In the Rex rehous (sp) carb book he likes to lower the level to prevent this.
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Old 08-24-2015, 08:57 PM   #9
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Default Re: Engine Stalling

Two things I find when this occurs:

1. float level

2. idle jet blockage by dirt or debree



other things but I find these to be most common
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Old 08-24-2015, 10:23 PM   #10
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Default Re: Engine Stalling

I had this problem at one stage. It was caused by a leak in the inlet manifold. Try checking that by spraying Aerostart or similar (known here as "Start Ya Bastard") around the inlet manifold gasket while the motor is idling and listen for a change.
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Old 08-24-2015, 10:26 PM   #11
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Default Re: Engine Stalling

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I had this problem at one stage. It was caused by a leak in the inlet manifold. Try checking that by spraying Aerostart or similar (known here as "Start Ya Bastard") around the inlet manifold gasket while the motor is idling and listen for a change.
That's funny
I guess that's your version of starting fluid
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Old 08-25-2015, 02:24 AM   #12
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That's funny
I guess that's your version of starting fluid
Mitch, here we go again with different terminology between our two countries. Aerostart is an aerosol can of volatile liquid including ether to get the bastard started.
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Old 08-25-2015, 11:31 AM   #13
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Default Re: Engine Stalling

I once bought a CASE of Chevron spray carb cleaner, BUT, an engine WOULDN'T RUN ON IT!--USELESS as TITS on a CHICKEN. (chuckle, here)
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Old 08-25-2015, 01:06 PM   #14
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Default Re: Engine Stalling

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I'm a little confused [ normal]. It only stalls while moving ? If sitting still, it doesn't ?
Correct. This occurs only when moving and stopping.
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Old 08-25-2015, 01:21 PM   #15
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Default Re: Engine Stalling

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Correct. This occurs only when moving and stopping.
That's why the Zenith for the Model B was redesigned.
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Old 08-25-2015, 01:33 PM   #16
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That's why the Zenith for the Model B was redesigned.
Bill W.
what all was changed? dont they utilize a float spring?
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Old 08-25-2015, 03:41 PM   #17
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Default Re: Engine Stalling

LOTS of things were changed, Mitch,
Even the float is sideways, so it doesn't BOB like a cork, I "think" they have a power valve of sorts, even. Find exploded views of each & you'll see how different they are.
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Old 08-25-2015, 04:56 PM   #18
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Default Re: Engine Stalling

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Originally Posted by Synchro909 View Post
I had this problem at one stage. It was caused by a leak in the inlet manifold. Try checking that by spraying Aerostart or similar (known here as "Start Ya Bastard") around the inlet manifold gasket while the motor is idling and listen for a change.

Thanks, has to laugh, will have to pick up a can of "Start Ya Bastard"
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Old 08-25-2015, 05:51 PM   #19
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Default Re: Engine Stalling

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I had this problem at one stage. It was caused by a leak in the inlet manifold. Try checking that by spraying Aerostart or similar (known here as "Start Ya Bastard") around the inlet manifold gasket while the motor is idling and listen for a change.
You can do the same thing with an unlit propane torch. Just don't do it inside the garage.
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Old 08-25-2015, 06:19 PM   #20
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Default Re: Engine Stalling

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Correct. This occurs only when moving and stopping.





OK, then if you think everything you can look at is OK then I agree with the others that it is generally a float height issue.
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