is this ok?

[markw336]

hi all i get a bit of piston slap on cold start up goes away once warm would i be right in saying that thats ok at this stage or should i start looking for a new motor?

[neodowd]

I had piston slap in my wrx but it was under warranty so I got it fixed. But when I researched piston slap it didn't seem that bad and is quite common in subaru's. It can reduce your engine life, I'm unsure if it effects performance.

[Nick_96_RSB]

yeah fairly common from what i've read, mines got some pretty sweet slap when cold, fine when warm though, i still give it some firm right jandal. id say you will be right, might get worse over time, but unless its going nuga nuga nuga when warm you shouldn't need to worry tooo much

[markw336]

yeah i thought it was fairly common as the side walls of the pistons wear out and the pistons are small (when cold) on start up and expand with heat and no longer make that noise once warmed up. was my under standing of it and in no way does it affect the performance of it haha it still goes very hard was just getting some other opinions

[markw336]

neodowd did you get a quote or a price on how much it costed to fix cant imagine it was cheap almost a full rebuild job

[Nick_96_RSB]

yeah just keep off boost until your nice and warm and you should be fine, i've owned my subbie for almost a year now & its been there since day one, not extremely pleasant sound when cold but once its warm its sweet as a nut & also servicing it regularly is always good. i am hoping to rebuild & forge late this year with any luck - fingers crossed

[markw336]

lol yeah i always wait even when its warm i hardly thrash it mostly do town driving

[Nick_96_RSB]

yeah i would say you will be fine man, just keep an ear out for if it gets worse, but if your not thrashing the pants off it i wouldn't worry about it too much, unless its sounds like this then worry haha

[markw336]

well tbh ive only sort of just realised it i have quite a loud exhaust but it took quite a few weeks to realise it haha

[neodowd]

 markw336 said:

neodowd did you get a quote or a price on how much it costed to fix cant imagine it was cheap almost a full rebuild job

Yea Pretty much got a bottom end rebuild, bored out cylinders .25 oversize pistons. Not sure on cost as it was years ago but think it was about $3000