Parts for your 2008 Honda Stream-Oil seals

2008 Honda Stream oil seals — what they do and when to sort them

Oil seals are absolutely relevant and fitted to the 2008 Honda Stream. Honda’s factory literature — including the Honda Stream 2006–2014 Service Manual (Engine, Lubrication, and Transaxle sections) and the Honda Electronic Parts Catalogue for RN6–RN9 models — lists multiple oil seals for the R18A/R20A engines and their transmissions. These include the front crankshaft seal behind the crank pulley, rear main seal at the flywheel/torque converter, camshaft oil seals, and transmission/differential (driveshaft) oil seals. That’s straight from Honda’s technical documentation and parts listings.

On the 2008 Stream, oil seals keep engine and gearbox oil where it belongs while keeping dust and moisture out. They ride on rotating shafts — like the crank and cams — using a precision rubber lip and spring to maintain a tight seal. When they harden or wear, they can weep oil, which can mist the undertray, leave spots on the driveway, or in worse cases contaminate the clutch or the timing area.

Tell-tale signs include fresh oil around the crank pulley, oily residue at the bellhousing, or oil collecting where the driveshafts enter the transmission. A burnt-oil smell on the exhaust can also point to a front seal or cam seal leak under the bonnet.

• Inspection: At each service, check the front of the engine, bellhousing join, and driveshaft exits from the trans for wetness. Keep an eye on the sump area too, so a gasket leak isn’t mistaken for a seal.
• When to replace: Seals aren’t a fixed-interval item