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)

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NS-4A Checking Engine Timing


Complete No Start Test 3, before proceeding.

1. Connect timing device to engine and crank engine.
2. If timing is 0---16°BTC, remove distributor cap and crank engine to be sure it is turning and is properly indexed, then check compression and valve timing.
3. If timing is not 0---16°BTC, proceed to Test 4 step B.