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General => The garage => Topic started by: GolfMad on 13 March 2007, 13:42

Title: Pinking
Post by: GolfMad on 13 March 2007, 13:42

Please could somebody clarify exactly what is 'pinking', what it sounds like, when it occurs and what problems it causes.

Have read a few posts on this subject band my haynes manual but still baffled to be honest.  :undecided:

cheers Andy

Title: Re: Pinking
Post by: rubjonny on 14 March 2007, 12:44

if you imagine the noise you get rattling a tin of spray paint, it sounds a bit like that!

Title: Re: Pinking
Post by: GolfMad on 14 March 2007, 14:01

thanks for reply jonny,

if my cars was doing this would it be all the time or hit and miss? i have a slight noise that i cant diagnose, all can say is it doesnt sound to 'metallicy' and only happens when driving, doesnt happen when stationary if that helps?

cheers andy

Title: Re: Pinking
Post by: tobz. on 14 March 2007, 14:08

Pinking is only usually noticible when the engine is under load, e.g. when accelerating hard or going up a hill in a high gear. It would be very unlikely to happen when stationary unless the timing was WAAAY out.
The way I describe the sound pinking makes is it's like a metallic crackling.

Title: Re: Pinking
Post by: rubjonny on 14 March 2007, 14:36

if you imagine the sound you get when you rattle a tin of sparay paint, its like that :)