J_sca001

If due to an oil leak a piston on an STI JDM melts, i donīt know to what degree aren,t you supposed to replace all 4 pistons and ring sets along with crank shells too and if your really lucky get the scored bore honed clean again????

Someone please enlighten me as the argument iīm having (Theoretical) is really pi55ing me off !!!

pslewis

While the engine is in biots for 1 piston, you may as well sort out everything you can.

It's a simple job - a 4 cylinder Boxer engine rebuild should hold no fears for anyone who has basic Engineering/DIY skills .......

Hardest part is Engine In/Out ....

WRX marv

pslewis..you dont know how long i've been waiting to here those words...my big ends went about 3 months ago & started to take engine out but thought i would ask a few garages 1st & 1 wouldn't touch it & the others wanted 2 grand even my mates said i was chuffin stupid for even thinking about it,so had doubts weather i could do it & stopped,i have worked on & stripped & rebuilt normal engines & thought they work on the same principle so can't be that hard.....i wold agree wth pclewis,while it's out do what you can

J_sca001

Thankyou guys, but that doesnīt really answer my question.

I understand in theory its best practice but....

My mate insists that all four have to be done even if they are not damaged. I told him that was bollocks but he wasnīt having none of of it.

WRX marv

it depends if the piston has scored the cylinder,if it has you will need to have it resleeved or a rebore then u will need to do all 4 so they all match...if not i would just put the 1 in

alcazar

iTrader: (2)

You don't HAVE to do it, unless it needs rebored, sleeved etc, but think about it: if you had the gearbox out for some reason, would you not take the chance to change the clutch/release bearing? I know I would. So if the engine is in bits, replace any parts that have been wearing since new, and all oil seals etc.

Alcazar

J_sca001

Exsqueeze my obvious simpleness but why is the P1 engine better than the STI?

WRX marv

aye i aint said owt about p1s but while we are on about it they do have a bit more power

J_sca001

Like i pointed out, i obviously don't have the vast knowledge you have of Subarus. I was not aware a P1 was anything like an STI Prodrive.

Maybe i will be as knowledgable as you one day, but hopefully i will only inherit the knowledge and not your arrogance.

WRX marv

sorry mate you have lost me now,i didn't mean to sound arragant,i was just a bit confused as to where the reference to p1 & sti came from as there was no mention of it in my reply you quoted..
i don't know what the differences between the 2 are if any

vindaloo

Unless there's something weird with my eyes, he said "1" - "one" - as in one piston, not "P1".

J.

J_sca001

No problem, my head is up my *** at the mo, so desperate to get a another Impreza i'm asking loads of questions.