thewhitewarrior

hi,
what is the long term damage of washing the bores and what does it look like? is it the cylinder wall wearing out and it leaves a patch due to the oil beaing washed out?
thanks phil.

al02uk

iTrader: (1)

I think when the bores are washed, the oil obviously washes out and the piston rings score the bores. i havent seen any pictures though. I'm not sure what causes it, overfuelling perhaps?

thewhitewarrior

yes, mine had the problem of over fueling (pre mapping) and from what ive seen on my cylinders, it has a big patch at the bottom of each cylinder.
my guess is that, as the cylinders were cleaned of oil due to too much fuel pumping in, the piston was dragging on the bottom of the cylinder, and over a short space of time it wore a patch away, about the size of a 10p and a quater mm deep, to each cyliner.
so anyone that thinks they maybe running rich, BE WARNED...
i need a rebuild again now as there was little bits of metal in the oil,
new crank and shells for crank and rods, new block maybe if it cant be bored anymore as its already .5 over and new rings, all needs the teedius task of running in.

mje_wrx

iTrader: (6)

yeh, over fueling, washes oil, ruins bore, if gets to hot, rings seize, u can blow spark plugs as fuel not getting burnt. ruins pistons

thewhitewarrior

mmm not good, i think im going short now, make the most of a sh!+ situation.

mje_wrx

iTrader: (6)

after my build 1300 miles into its mine went, there are other factors to mine but all sorted now. 2nd rebuild this year, cruel, but i love my scoob

thewhitewarrior

sad to hear that, know how ya feel though, mine did about the same miles after a rebuild and it all needs to be done again.
there is something about them that makes us spend, spend, spend, there worse than wemon...
but its all good

mje_wrx

iTrader: (6)

oh yes, its a passion