CriticalCommonEngine

Honda Stream: R18A Timing Chain Guide Wear & Rattle

R18A Timing Chain Guide Wear & Rattle is a common engine fault on the Honda Stream on the 2006–2014 cars, and we rate it critical. Putting it right costs $1,200 to $2,800 at New Zealand independent workshop rates. Below is what goes wrong, the symptoms to notice on a test drive, where to look, and what to ask the seller before you hand over any money. It is one of 22 documented faults on the Honda Stream.

Vehicle: Honda Stream
Engine: R18A
Years: 2006–2014
Fuel: petrol
System: Engine

This page covers the Honda Stream as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Honda Stream faults22 documented faults on this model

What you are looking at

What goes wrong

The plastic timing chain guide rails on the R18A 1.8L engine deteriorate with age and high mileage, typically becoming problematic beyond 130,000km. Worn or cracked guides allow chain slack to develop, producing a pronounced rattle or clatter from the timing cover area on cold start that may persist as the engine reaches operating temperature. Severely degraded guides can allow the chain to skip a tooth under high RPM or load, causing valve timing errors and potential piston-to-valve contact, resulting in catastrophic engine damage. The hydraulic chain tensioner piston seals also degrade with age and reduced oil change frequency, compounding guide wear.

What you would notice

Loud chain rattle or clatter from the left side of the engine on cold start
Rattle may persist or worsen as engine warms in severe cases
Check engine light with camshaft timing or P0300-series misfire codes
Loss of power or rough running if chain has jumped a tooth on a worn guide

How to check it

Where to look. Timing chain cover and internal guide rail assembly, left and rear side of R18A engine

Cold-start the engine and listen carefully for chain noise from the timing cover on the left side of the engine. Check service history for chain, guide rail, and tensioner replacement records. Look for oil seepage around the timing cover gasket. If a workshop inspection is possible: Scan for any OBD fault codes relating to camshaft or crankshaft timing correlation.

Parts involved: Timing chain.

What it costs to put right

$1,200 to $2,800 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.

Ask the seller

“Has the timing chain, plastic guide rails, and tensioner been replaced?”
“At what mileage was the timing chain system last serviced?”
“Is there any rattling or clattering noise audible on cold start?”

Now check the Honda Stream you are actually looking at

Everything above is true of the model, and it is free. What it does not tell you is whether THIS car has been looked after: its odometer history and whether the reading has ever gone backwards, whether there is still money owing on it, whether it has been reported stolen, how many owners it has had and what it is really worth today. That comes from the official records for that plate. Enter the plate for the free details, or get the full history and a market valuation from $13.49.

Not sure what you would be paying for? See what a full KickTyres check includes.

Where this comes from

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.

Honda Stream buyer questions

Is r18a timing chain guide wear & rattle serious on a Honda Stream?

We rate it critical and common on the Honda Stream. The plastic timing chain guide rails on the R18A 1.8L engine deteriorate with age and high mileage, typically becoming problematic beyond 130,000km. Worn or cracked guides allow chain slack to develop, producing a pronounced rattle or clatter from the timing cover area on cold start that may persist as the engine reaches operating temperature. Severely degraded guides can allow the chain to skip a tooth under high RPM or load, causing valve timing errors and potential piston-to-valve contact, resulting in catastrophic engine damage. The hydraulic chain tensioner piston seals also degrade with age and reduced oil change frequency, compounding guide wear.

How much does it cost to fix on a Honda Stream?

$1,200 to $2,800 at New Zealand independent workshop rates. That figure is for this job on its own. A car showing the symptoms on this page is usually worth either walking away from or negotiating down by at least the repair figure.

Which Honda Stream years are affected?

Our research records this fault on the 2006–2014 Honda Stream. Build dates move around, especially on imported cars, so treat the range as the years to look hardest at rather than a guarantee either way. The official records tell you the exact build and first registration date for the car in front of you.