Reply to "Motor stalls when braking hard"

marlinjackThe Machinist #5723 AMARGOSA MACHINE 'Running on Empty- Middle of Nowhere'

Your NOT going to see any bubbles with a vacumn leak; as NO air is coming out! Atmospheric Pressure IS going in! I'am with RoBeRt, it sounds like a ruptured Brake Booster Diaphram. You'll have to borrow a Vacumn Gauge. Your Vacumn at idle (1000 RPM) should be between 15 and 17 Inches of Mercury. Mine is 19-20. If you are lower than 15 Inches I would suspect a Vacumn leak; also, a rising and lowering needle with-in a range of 5-10 Inches, would indicate a Vacumn leak. Could also be a short in the brake lights, effecting the ignition, BUT that should blow the fuse! Could also be WHERE you have the Ignition 12 Volts, wired to? And if you are using a Ballast resister (wire or ceramic block), or not. As the brake lights could draw off current from the Coil or Ignition box or both. Anything is possible with these Machines. As mention above, could even be fuel!! Either Fuel bowl level or the Idle screws are screwed IN to far. Good-Luck with it! And let us know how you make out. Marlin.

5/14/042:22 PM

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