stiggyb

hi all,
my 98 imprezza turbo has developed a knock at low revs when cold,sound as a pound when warm,shes done 98000 so could this be the dreaded piston slap? If so whats the best way to rectify it?
thanks all hope you can help

chocolate_o_brian

iTrader: (22)

erm from what ive read and discussed on here (hope others back me on this), a little piston slap when cold on a 98 car isnt that bigger deal, i hope.

same as my99-00 cars have terrible m.a.f. sensors

as long as the "slap" goes when the car is warmed up, i dont think you have major issues.

all imho.

easyscoob

my 04 does it too

stiggyb

Quality , thought i was looking at some serious wedge to sort it.knock definatley goes after she s warmed up,only use millers 10/60 so she should be ok,
thanks guysfor the help

chocolate_o_brian

iTrader: (22)

where did you get your oil from?

10/60 seems high. i dont know much but i assumed 10/40 was the norm.

stiggyb

got oil from a local millers supplyers, went for the 10/60 as id read it was good for engines with high bhp,it originaly had 10/40 thats when i started to notice knock on warm up,so i changed to 10/60.iv heard that scoobys dont like swapping but i thought it might help .(this is her 3rd change with 10/60,)

lightwave693

got the slap on my98 and its fine