HELP!! EXpensive Sounding engine noise...

[Jeff101]

Posted on SELOC also...



Over the last week a metallic clicking sound started from the engine bay. It is sort of like the sound an injector makes when spraying fuel due to the solonoid opening/closing.

Had a quick look and it sounds like its coming from either the head or the injector assembly. Due for a service next week so i left it!

Today however it got very loud more defined and plastic sounding but only when under partial load or just as you come off throttle! other than that it returns to the previous noise.

What the hell is it? Injectors, something in the head??? have to do a 250 mile round trip this weekend and am i guna bugger it. Oil is a little on the low side but not drastic.

Sorry my description of sounds is a little lacking but can anybody please help?

[Gooby]

what car - what engine?

[NathanE]

Tappets most likely. Change the oil.

[slatess1]

Worse case scenario could possibly be big end bearing shells failing which is what happened to mine. I personally wouldnt drive it until your service and report it to them. My engine failed on the way to the garage after i booked it in for a check up. Complete engine rebuild incl new crank shaft, pistons, rods and block which isnt cheap!

Mine started as a tapping sound that could be more easily heard around 3-4k rpm

[Jeff101]

Sorry yeah its S2 K series. Might investigate this afternoon coz its looking perfect for some roof down motoring this weekend

[stevie111s]

The K can sometimes have a noisy tappet at startup which should quieten when the oil pressure comes, this happens very occasionally on my S160. If you think it sounds like injectors then could it be one/them?