[CL9] Annoying clicking noise from engine

[sk3103]

I am experiencing a very annoying clicking sound from the engine.

Possibly from the camshafts?

Any idea how to isolate the noise?

Cheers!

[HONTUNE]

Have you had a major service lately? More than likely loose exhaust valves.. Very common on cl9s at my work.. :)

[sk3103]

I guess my last major service was for the 40,000km, 3 years ago!

My odo is sitting at 67,000 now. Should I ask to check the valves at my next service? (70,000km)

[HONTUNE]

Yeah definately get them to check the valve clearances :)
good luck with it

[Fredoops]

checking valve clearance....

approx 1 hr labour + new head gasket... keep that in mid when getting prices.

[trism]

no, you dont need a head gasket when checking valve clearances, you need a valve cover gasket.

[richard_k]

I had a ticking clicking kinda noise too..thought it was valve clearance but it was just the drive belt because it had stone chips in it that were making the noise against the metal pulley. Got it replaced and noise was gone.

[Fredoops]

no, you dont need a head gasket when checking valve clearances, you need a valve cover gasket.

my bad, yea that thing

[HONTUNE]

Get them to have a look but i think it'll be your valve clearances. Most common thing anyway.. 1 hour labour = approx $100 + $32.35 for rocker cover Gasket, if done at a Honda dealer.. Well that what we charge at my work anyway. If you lived in Adelaide I could of done it for you... Hope it all goes ok for you :)

[aaronng]

At 67k, I doubt it is the valve clearance causing the ticking sound. Valve clearance being out of spec causes your engine to sound like a diesel. It is probably the injectors. Take a long screwdriver, place it at various parts of the engine and put your ear on the handle end. Your should be able to pinpoint where the ticking sound is coming from. On mine it is the injectors and it has done so since the 3rd year of ownership.

[HONTUNE]

Ok.. We've had euro's with loose tappets at 30,000.. The inlets always go tight and exhaust loose. At 40,000ks there normally loose. but 0.04 of a mm and that is out of spec.. Good luck with it..

[Fredoops]

Mine had to be done at 50k... Honda say the k-series taps are supposed to last 60k before adjusting....

[sk3103]

Thanks for all your feedback guys! I will definitely check the valve clearence, tappets and the injectors... The lot.

In the meanwhile, I have just added a bottle of "Nulon Lifter Free & Tune Up". I know it's just a temporary fix until my next service but this thing actually works!

A lot quieter and smoother. Well spent $$$!