just how bad is piston slap?
 

as per the title really...

i know my scooby has a small amount of piston slap mainly audible when cold.

also been told by many sources that its fairly common in classics.

whats your opinions/experiences?

piston slap
 

piston slap is common on 97/98 cars when cold.

It's a feature of the cars with forged pistons (e.g. classic STis, others that have their engines rebuilt etc.) and from having such cars for the past 10 years all I can say it hasn't caused any issues. I just make sure I warm the engine gently.

Don't let it worry you :)

is that at the top of the rev range or even at idle ??

https://www.scoobynet.com/general-te...ston-slap.html :)

my car has it from cold and has done for ages

Same with my mates and brothers lol

VERY common mate

Same as post 2 end of

Could be your tappets, thats what the noise I thought was p/slap turned out to be in my old 99UK Turbo.:thumb:

93 wrx with piston slap here. no problems. done it since i got it.

when i had my car remapped simon from jgm confirmed that it was piston slap.

he used his bionic ears:notworthy

Long as it goes when warm fella, you're good to go :D

If not, closed deck block rebuild anyone :norty:

I have piston slap on MY99 V5 its normal especially when cold. It usualy goes after 30 seconds or so but I always let her warm up to.

I've noticed after long runs that after taking key out and waiting for timer to stop engine i'm getting a noise but i've been told its just the noise of exhaust coolind down?

both mine have done it . sounds awsome in the morning lol:D

I had mine for a year a half(MY98 UK Turbo), and it slapped when cold from the day I got it until the day it was sold. Always disappeared when warm though.

i just had mine rebuilt 600miles ago and shat myself when it started making that noise but you have taken a waight off my mind it never did it when i had a wrx block but now ive got a stronger sti 1 :-) sounds like a tracktor in the morning glad im not the only 1