Honda Odyssey: K24A Timing Chain Stretch and Tensioner Wear

The K24A 2.4L engine in RB1 and RB3 Odysseys is prone to timing chain elongation and hydraulic tensioner failure when oil changes are neglected or degraded oil is used. Worn tensioners allow chain slack, causing cold-start rattling that may progress to jumped timing and valve-to-piston contact if left unaddressed. The failure is oil-maintenance dependent and accelerates above 10,000km service intervals.

• Rattling from front of engine on cold start fading within 10-15 seconds as oil pressure builds
• Persistent rattle that does not clear indicating advanced chain stretch
• Check engine light with P0341 or camshaft timing codes
• Rough idle or misfires following chain jump

1. 1

   Cold-start the engine after sitting overnight and listen for a rattle from the front of the engine in the first 5-15 seconds.

2. 2

   Check oil change history for intervals exceeding 8000km.

3. 3

   Scan for timing or camshaft position sensor fault codes.

4. 4

   Pull the oil cap and look for sludge buildup indicating chronic neglect.

Parts involved: Timing chain.

$1,800 to $4,500 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

• “Can you provide the full oil service history?”
• “Has the timing chain or tensioner ever been replaced or inspected?”
• “Does the engine make a rattling noise in the first seconds after a cold start?”

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.