Why does it die?

J

Jimmys66

Founding Member

Nov 28, 2001

419

0

0

Paw Paw MI

May 1, 2007

#1

• May 1, 2007

• #1

When I make a hard stop the motor chokes and after a couple of good pedal pumps, the motor cleans out.

To me it seems like it is flooding out. My first thought was the float bowls were set to high. After checking them, they are set correctly.

Any suggestions?

Biggs (holley)650dp on a 302.

 

iskwezm

10 Year Member

May 24, 2005

4,159

20

79

Rowland Heights,California

May 1, 2007

#2

• May 1, 2007

• #2

float set too low????idle too low?

 

F

ForceFed70

That's why they call it "dope"

Founding Member

Dec 6, 1999

4,818

1

69

BC Canada

May 1, 2007

#3

• May 1, 2007

• #3

I had this same problem once with my 78 Mustang II.

I was able to fix it by adjusting the idle mixture.

 

krash kendall

Active Member

Nov 19, 2004

1,258

0

36

Aldergrove, B.C. Canada

May 1, 2007

#4

• May 1, 2007

• #4

If you brake really quick and hard, the engine may die due to the torque convertor not unlocking fast enough.

 

J

Jimmys66

Founding Member

Nov 28, 2001

419

0

0

Paw Paw MI

May 1, 2007

#5

• May 1, 2007

• #5

It's a stick so I can eliminate the converter. When I'm braken' I've got the clutch in so it's not like I'm draging the motor down.

It idles at roughly 950rpms.

I could try bumping up the floats. When I checked I looked to see if it was too high and flowing over. I wasn't getting any fuel out of the plug. I'l bump it up tom. until I get a little out of the plug and see how it does.

 

2nd Mustang

Founding Member

Feb 24, 2002

2,488

0

46

Southern California

May 1, 2007

#6

• May 1, 2007

• #6

If it has power brakes, try plugging the line from the intake to the booster and try a hard stop, but make sure you have a lot of space to stop.

 

pabear89

Active Member

Apr 15, 2003

2,126

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46

High in the Hills of So Ca with the Voices in My H

May 1, 2007

#7

• May 1, 2007

• #7

Without a baffled chamber, it will eather starve or flood on hard brake or corners. I Set the floats on level ground idling,With the manual trans, 650 rpm
with the sight plug off and adjust float so it has fuel at the lower lip of the hole.
You should see fuel with just a nudge on the frontend.

 

J

Jimmys66

Founding Member

Nov 28, 2001

419

0

0

Paw Paw MI

May 5, 2007

#8

• May 5, 2007

• #8

Got it. It was the seconday float.

I was making a rookie error. The float level onlys changes in the secondary when it's opend enough for the rear 2 barrels to dispence fuel.

Thanks again.