Bubba's Garage

[Paul Ruschman]

Mechanic's Quick Reference

"FOOL PRESSURE CHART"

(For those who refuse to use a pressure gauge)

Due to the fact that most technicians do not want to take the time to
correctly test the fuel pressure, we have developed the following...

With the engine running, either push the schrader valve in or loosen the
fuel line THEN IF:


Fuel does not come out of the test area...  Pressure is approx 0 psi
Fuel hits the hood insulation...            Pressure is 5 - 8 psi
Fuel squirts over the fender...             Pressure is 10-15 psi
Fuel splashes off the fender onto the hood insulation
and into the next repair bay...             Pressure is 25-30 psi
Fuel squirts to the garage roof, all over the car,
including the shop owner...                 Pressure is 30-50 psi




VACUUM TEST
"Rule of Thumb"

Put thumb on vacuum hose leading to direct engine vacuum.

Don't feel anything                   Change thumbs and re-test
Still don't feel anything             Vacuum is very low to none.
Hose has slight suction               1" to 5"
Suction causes skin to wrinkle        5" to 8"
Suction turns thumb blue              8" to 10"
Suction creates hickey on thumb       10" to 12"
Suction creates pain                  18" to 20"
Suction will not release and begins to move toward
index finger                          20" to 25"




"IDIO-ILLUMINATION" CHART

With the vehicle prepped and ready to be tested, hook the negative lead of
the test light to a good ground and proceed with testing.

The bulb DOES NOT light                  The voltage is 0 - 1 volt
The bulb MIGHT be glowing                The voltage is 1 - 3 volts
The bulb BARELY GLOWS (or there is a
reflection from the overhead lights)     The voltage is 3 - 5 volts
The bulb GLOWS MUCH BRIGHTER than #2, but only
a little brighter than #3                The voltage is 5 - 7 volts
The bulb GLOWS WITH THE SAME INTENSITY AS A
BALD HEAD ON A SUNNY DAY                 The voltage is 7 - 9 volts
The bulb GLOWS BRIGHTLY and is GAINING IN
INTENSITY                                The voltage is 9 - 11 volts
The bulb is ALMOST BRIGHT ENOUGH TO
READ BY                                  The voltage is 11 - 13 volts
The bulb is BRIGHT ENOUGH that you still see a spot
when you look away                       The voltage is 13 - 15 volts
The bulb SHINES WITH THE INTENSITY OF A
HALOGEN HEADLAMP                         The voltage is 15 - 17 volts
The bulb is so bright that it MAY BE A SIGN
FROM GOD                                 The voltage is 17 - 19 volts
The bulb flashed with the INTENSITY OF A MINOLTA
FLASH POINTED 3 FEET FROM YOUR FACE      The voltage is 20 to 40,000 volts
                                         (Secondary Ignition)



IGNITION VOLTAGE OUTPUT TEST

Scopes may be inaccessible from time to time, so we at "Bubba's Garage"
have come up with this here test for Ignition Output:

1.Hold medium wrench in one hand, Sears wrench preferred for accuracy
  of test 'cause other smooth wrenches are too slick for throwin'!

2.With engine runnin', grab hold of the plug end of an ignition cable
  with the other hand and hold on tight!

3.This will more than likely cause you to throw wrench!  KV output
  is based on how far the wrench wuz thrown!

       10 feet =                 approx. 10,000 volts
       20 feet =                 approx. 15,000 volts
       30 feet =                 approx. 25,000 volts
       Over 30 feet =            Caution!  Must be one of them new
                                           dis-is-it ignition systems,
                                           use bigger wrench and retest.


WARNING! No side effects have been reported due to testing at this time
(although it has been known to kill chiggers after berry pickin')

Bubba Sez: Electricity will not usually hurt you, instead it is the back of
your neck going through the hood latch that really ruins your day!!




HOW TO TORQUE WITH AN IMPACT WRENCH.


Yes you can use your impact gun to torque nuts and bolts if you use this
handy chart along with your ears and a quick trigger finger.

TORQUE VALUE          INGERSOLL IMPACT            SNAP-ON IMPACT

25 to 35 ft/lbs       BAP!                        BAP!
35 to 45 ft/lbs       BAP! BAP!                   BAP! BAP!
45 to 60 ft/lbs       BAP! BAP! BA...             BAP! BAP! BAP!
60 to 75 ft/lbs       BAP! BAP! BAP!              BAP! BAP! BAP! BA..
75 to 90 ft/lbs       BAP! BAP! BAP! BAP!         BAP! BAP! BAP! BAP!
90 to 100 ft/lbs      BAP! BAP! BAP! BAP! BAP!    BAP! BAP! BAP! BAP! BAP!

110 to 300 ft/lbs     BAP! BAP! BAP! BAP! BAP! BAP! BAP! BAP! BAP! BAP! BAP!
        (all guns)    BAP! BAP! BAP!