Parts for your 2009 Honda Elysion-Exhaust gasket

2009 Honda Elysion exhaust gasket: what it does and when to replace it

Yes, the 2009 Honda Elysion uses exhaust gaskets. Honda’s Electronic Parts Catalogue for the RR1–RR3 Elysion platform and engine service information for the K24A (2.4-litre) and J30A (3.0-litre V6) engines show multiple exhaust sealing points: a cylinder-head to exhaust-manifold gasket, a manifold-to-front pipe “donut” gasket with spring-bolted joint, and flat flange gaskets further down the system. Honda service procedures specify replacing disturbed exhaust gaskets during removal/refit to ensure correct sealing.

The exhaust gasket on a 2009 Honda Elysion is a small part with a big job. It seals the joints where hot gases pass from the engine to the tailpipe, keeping the system quiet, fume-free, and accurate for the oxygen sensors. On these Elysions, expect a metal multi-layer manifold gasket at the head, a crush-style donut where the manifold/front pipe join, and flat gaskets at mid and rear flanges. When they’re tired or pinched, the result is that tell-tale ticking on cold start, an exhaust smell around the cabin, and sometimes a CEL due to skewed O2 sensor readings and fuel trims.

As part of routine servicing, a quick check of the exhaust joints is worth it, especially on higher‑kilometre Elysions. Look for sooty deposits at flanges, listen for a sharp tick that quietens as it warms up, and pay attention to any sudden change in exhaust note. If the joint uses a spring-bolt arrangement (common at the donut), make sure the springs and bolts aren’t seized or weak—replacing the hardware with the gasket often restores proper clamp load.

• Replace disturbed gaskets: manifold and donut gaskets are designed to crush once—don’t reuse.
• Clean, flat faces: remove old residue and rust, check flanges for warpage before reassembly.
• No sealant unless the service info says so: most Honda exhaust gaskets install dry.
• Torque evenly: snug in sequence to avoid cocking the flange, recheck after a few heat cycles if accessible.
• Protect the hardware: a dab of high-temp anti-seize on studs/nuts (not on gasket faces) helps the next service.

If there’s an exhaust leak, sort it promptly. Beyond the racket and fumes, it can lead to failed WOF/RWC inspections and poor fuel economy. Quality OEM or reputable aftermarket gaskets sized for the Elysion’s engine family fit best and last longest.

How can someone tell if the exhaust gasket is leaking on a 2009 Honda Elysion?

Common clues include a ticking sound on cold start that softens when warm, a sharper exhaust note, or a whiff of fumes near the engine bay or under the floor. Sooty marks around the flange or donut joint are a giveaway. A scan tool may show lean trims or O2 sensor anomalies if the leak is ahead of the sensor.

Can an exhaust gasket leak cause a WOF/RWC fail in AU/NZ?

Yes. Leaks that increase noise, allow gases to escape forward of the cabin, or compromise emissions can trigger a fail. Fixing the gasket and any corroded hardware usually restores quiet, safe operation and keeps inspectors happy.

Should sealant be used with the Elysion’s exhaust gaskets?

Generally, no. Honda’s exhaust manifold and donut gaskets are engineered to seal dry when torqued correctly. Unless the specific service notes call for a sealant on a particular joint, fit the new gasket clean and dry and tighten to spec.