Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Time Lag Test








This test is to check conditions of clutch, reverse brake and fluid pressure. "Time lag", means time elapsed since select lever is shifted with engine idling till shock is felt.

1. With chocks placed before and behind front and rear wheels respectively, depress brake pedal.
2. Start engine.
3. With stop watch ready, shift select lever from "N" to "D" range and measure time from that moment till shock is felt.
"N" --> "D": Less than 0.7 sec.
"N" --> "R": Less than 1.2 sec.

4. Similarly measure time lag by shifting select lever from "N" to "R" range.

NOTE:
^ When repeating this test, be sure to wait at least minute after select lever is shifted back to "N" range.
^ Engine should be warmed up fully for this test.