Honda Valve Adjustment Service – When was the last time you had yours checked?

Honda Valve Adjustment Service

honda valve adjustment, ade tuning
The importance of correct Honda valve adjustment can’t be over-stressed, as it can directly effect the performance and life of the engine.

Valves are opened by camshaft lobes on overhead camshaft engines and by rocker arms on pushrod engines. With extended time and use, the original clearances between these parts and the valve stems become bigger (with exhaust valves, the clearance can become tighter over time). That often leads to a clattering noise or more engine vibration that a driver might not notice for quite a while, because it increases gradually.

honda valve adjustment, ade tuning

Intake valves open and close to let the air-fuel mixture (or just air in some modern engines) enter the combustion chambers, and the exhaust valves allow exhaust gases to escape. Too much or too little valve clearance can result in poor performance or a rough idle because the engine can’t “breathe” normally and operate at peak efficiency. Too much clearance means the valves will likely clatter and, over the long term, cause damage to the valves and/or camshaft lobes or rocker arms. If there’s too little clearance the valves won’t fully close, causing excessive heat, and the engine will lose power.

honda valve adjustment, ade tuning

If your engine generates a loud clatter, it could be time for a valve clearance adjustment — though on some engines the valves don’t generate noise when there’s too much clearance. Loss of power could be a sign of a weak or broken valve spring, and a tapping noise could be caused by a loose rocker arm, so a clearance adjustment may not be all that’s needed.


By ensuring that you have your Honda valves adjusted at the factory recommended mileage intervals  will help to prevent premature engine failure and costly repairs, and can help to ensure that your engine is running efficiently and quietly for a long time.

Subaru Impreza WRX STi RA-R Remap

Subaru Impreza WRX STi RA-R Custom Remap

A pretty rare beast in for a custom remap this week.

subaru imprezza wrx sti ra-r, ade tuning, custom remap,

We present you with a Subaru Impreza WRX STi RA-R.

subaru imprezza wrx sti ra-r, ade tuning, custom remap,

Only produced in limited quantities for the Japanese market, the Type RA-R is a fully featured version of the 2.0 litre WRX STi spec C. It offers customers in Japan a better version of the WRX. With the release of the “GD Chassis” WRX in 2001 and these already featuring lighter glass, thinner roof construction, reinforced strut tower braces, a rear crossbar, alumminum boot lid and an air-cooled engine oil cooler, the spec C is a potent package that the RA-R takes a step further.

So they did…Under the bonnet is a specially prepared version of Subaru’s boxer with a larger turbo and better exhaust to produce 320 bhp and 318lb ft lbs of torque – the same as Subaru’s ultra-limited S204. It also comes with white 18-inch alloy wheels, a lower more stiff suspension and the RA roof spoiler, lip spoiler and optional carbon fibre rear wing. Inside, new seats and pedals are included for the driver.

Only 300 copies where be made available exclusively to the Japanese market with a colour choice of white, blue or yellow and we had the honour of custom remapping this one 🙂