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Parts for your 2010 Honda Stream-Oil seals
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2010 Honda Stream oil-seals — what they do and when to sort them
Oil-seals are absolutely fitted and relevant to the 2010 Honda Stream (RN6–RN9). Honda’s workshop manual for the R18A/R20A engines and 5-speed auto/CVT transaxles, along with the Honda Electronic Parts Catalogue, list multiple seals: front crankshaft oil seal, rear main seal, camshaft seals, timing chain case seal, and transaxle input/output and driveshaft oil-seals. Honda Service News and service manual procedures also detail correct seal installation depth, lubrication of lips, and crank/cam alignment during refitting — all clear indicators these seals are standard on this model.
On this Stream, oil-seals keep engine and gearbox lubricants where they belong, stopping leaks at rotating shafts and housings. They ride on machined surfaces and use a spring-loaded lip to hold back oil under pressure. When a seal hardens, wears a groove, or gets nicked during work, leaks start — leaving spots on the driveway, a whiff of burnt oil on the exhaust, or a low oil level between services.
As part of routine servicing, oil-seals aren’t replaced on a time or kilometre basis, they’re inspected and only changed if there’s weepage or a confirmed leak. Sensible checks during an engine or trans service include:
- Looking for oil mist around the crank pulley (front crank seal) and between engine and transmission (rear main seal).
- Checking the timing cover area for dampness (cam and timing case seals).
- Inspecting the transaxle where the driveshafts enter for wetness or fling (axle oil-seals).
Helpful tips the manuals echo: keep the PCV system healthy so crankcase pressure doesn’t push past the seals, use genuine or high-quality aftermarket seals, lightly oil the seal lip on install, and drive seals squarely to the specified depth using the correct driver. If the crank or cam sealing surface is grooved, a repair sleeve or component replacement may be needed, or the new seal will fail early.
When replacement is required, it pays to pair it with related work. A front crank or cam seal is ideal to do during timing chain or accessory belt service. The rear main seal is best handled when the transmission is already out. After any seal job, a post-repair clean and re-check over a few hundred kilometres helps confirm everything’s dry and sorted.
- Common leak clues: fresh oil drips, oil smell after a run, low engine or trans oil level, oil on the undertray, or a damp drive flange.
Key seals fitted on the 2010 Honda Stream:
- Front and rear crankshaft oil-seals
- Camshaft and timing case oil-seals
- Transaxle input/output and driveshaft oil-seals
Technical references noted: Honda Stream RN6–RN9 Workshop Manual (Engine Lubrication, Cylinder Block/Head, Automatic Transaxle/Transaxle sections), Honda Electronic Parts Catalogue (seal listings for R18A/R20A and 5AT/CVT), and Honda Service News installation guidelines for radial lip seals.
Popular questions
Where are the main oil-seals on a 2010 Honda Stream?
They’re at the front and rear of the crankshaft, at the camshaft ends/timing cover, and at the transaxle where the input/output shafts and driveshafts exit. These are the usual suspects if oil shows up around the pulley area, between engine and gearbox, or on the inner faces of the front wheels/undertray.
How often should oil-seals be replaced?
There’s no set interval. Honda’s service guidance is to inspect during routine servicing and replace only if leaking or during related jobs (timing work, clutch/gearbox removal). With good crankcase ventilation and quality oil, many seals run well past 200,000 km without issue.
Is a small weep worth fixing straight away?
A light mist can be monitored if the oil level is stable and there’s no contamination of belts or brake surfaces. If oil is reaching the exhaust, dripping to the ground, or soaking a belt, it’s time to replace the seal to avoid bigger hassles and keep the Stream tidy.
