Publicité
Les langues disponibles
Les langues disponibles
3
Procedure for Timing the Injection Pump
at TDC
Note : Depending on the type of injection pump and the timing specified by the
manufacturer, proceed as follows:
Timing the Pump at TDC
Application for pumps with end access to plugs
(Bosch, Kiki, Nippon Denso)
3-1
Application for pumps with top access to plugs
(Lucas, Roto Diesel)
3-2
Timing the Injection Pump at TDC (pumps with end access)
3-1
• Fit tools as per 2-2. • Tip the pump toward the outside of the engine. • Turn the
crankshaft to position the engine at TDC, set the gap. Starting at the gap setting
position (remove the TDC tool) , rotate the crankshaft 90° in the CCW direction (until
the dial indicator indicates bottom dead centre position of the pump) . • Reset the
dial indicator to 0 (record the pre-load value) . • Rotate the crankshaft in the CW
direction to position the engine at TDC, set the gap. • Gently tip the pump until the
dial indicator displays the timing value (plus the pre-load value recorded above)
• Tighten the pump attachment bolts • (2) Remove the TDC gap setting tool.
• Check.
3-2
Injection Pump Gap Setting at TDC (pumps with access from the top)
• Fit tools as per 2.3. • Tip the pump toward the outside of the engine. • Turn the
crankshaft to position the engine at TDC, set the gap. Starting at the gap setting
position (remove the TDC tool) , rotate the crankshaft 90° in the CCW direction
• Contact the dial indicator extension on the protractor (which is in turn in contact
with the stylus touching the sensor touching the pump piston) . • Reset the dial
indicator to 0 (record the pre-load value). • Rotate the crankshaft in the CW direction
until the engine is in TDC position, set the gaps. • Gently tip the pump until the dial
indicator displays the gap value (plus the pre-load value recorded above) • Tighten
the pump attachment bolts • Remove the TDC gap setting tool.• Check.
Checking (3-1, 3-2)
• Rotate the crankshaft 45° in the CCW direction and then rotate in the CW
direction to position the engine at TDC set the gap. • In this position, the dial
indicator should indicate the timing value. • If necessary, repeat the timing
procedure.
Publicité
