Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Timing Chain
- Remove timing chain cover. Refer to COVER(S), ENGINE TIMING, REMOVAL .NOTE:
The crankshaft timing mark (3) or (5) can be in one of two locations depending on whether the engine is early production (5), late production (3) or assembled with service parts (3). In all cases the keyway (2) will always be in the 9:00 position, in line with the ladder frame mounting surface (1) when the engine is at TDC.
- Verify that the engine is still set to TDC.NOTE:
If the timing chain plated links can no longer be seen, the timing chain links corresponding to the timing marks must be marked prior to removal if the chain is to be reused.
- Mark chain link (4) corresponding to crankshaft timing mark (3) or (5).
- With the engine still set to TDC, verify that the marks on the camshaft sprockets (3) are in line with the cylinder head cover sealing surface (2). If the marks do not line up, the timing chain is not correctly installed.
- Mark chain link (1) corresponding to camshaft timing mark.
- Remove timing chain tensioner (5). Refer to TENSIONER, ENGINE TIMING, REMOVAL .
- Remove timing chain (2).
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.