Cold Start Timing Advance System (KSB) Pump Mounted (005-070)
B3.9 and B5.9 Series Engines
Section 5 - Fuel System - Group 05
Loosen and remove the KSB electrical element from the
KSB housing if equipped with a wax motor-style KSB.
NOTE: If equipped with a electrical solenoid-style KSB,
proceed to the next step.
Remove the KSB electrical solenoid from the KSB housing.
When using solvents, acids, or alkaline materials for
cleaning, follow the manufacturer's recommendations
for use. Wear goggles and protective clothing to avoid
Wear appropriate eye and face protection when using
compressed air. Flying debris and dirt can cause bodily
Thoroughly flush the pressure relief valve with cleaning
Dry with compressed air.
KSB Electric Element
Apply 12 VDC to the electrical terminal and a ground strap
to the hexagonal portion of the element. Look for exten-
sional movement of the plunger. If the plunger does not
move after approximately 1 minute, check to make sure the
element has been correctly connected to ground. If all
connections are correct and the plunger does not move,
the element is defective and must be replaced.
NOTE: The amount of plunger movement will vary depend-
ing upon the ambient temperature.