Injection Pump Timing
- Remove distributor head bolt on injection pump. Install special alignment tool (Toyota Part No. 09275-54010) and dial indicator to distributor head plug.
- Set No. 1 or No. 4 cylinder to 45° BTDC on compression stroke. Using a screwdriver, turn cold starting lever counter clockwise approximately 20°. Insert a metal bar (.33-39" or 8.5-10 mm thick) between cold starting lever and thermowax plunger.
- Set dial indicator at zero. Check to see that indicator stays at zero when crankshaft pulley is rocked slightly to left and right. Slowly turn pulley until No. 1 or No. 4 cylinder is at TDC.
- Injection timing (dial indicator plunger lift) should be .0382-.0406" (.97-1.03 mm) for Calif. models; .0433-.0465" (1.10-1.8 mm) for Federal models.
- Loosen injection pipe union nuts and pump mounting bolts and nuts. Tilt pump body slightly, and recheck injection pump stroke. If stroke is less than specifications, tilt pump toward engine; if greater, tilt away from engine. See Fig 1.
- When timing is correct, tighten bolts, nuts and fuel lines. Remove metal bar from cold starting lever. Remove tools, and install distributor head bolt and washer. Tighten to 12 ft. lbs. (17 N.m). Start engine and check for leaks.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002