85mmek9

Tearing apart the motor and getting ready for next year, this was my first season and I noticed the pistons having crazy wear! Its like this on most the piston skirts but not all, is this normal, or is somthing poss to loose, wrong etc....

1quicklaser

Looks like the piston to wall clearances are off.

Beww

thats not normal at all

BEAVERTOOTH

Looks good to me if your reving to 11 grand

85mmek9

shifting at 10-10.2k. Had a couple 3rd to 2nd shifts that went to like 12.5! Are these still usable? Going to change the rings also, number 3 was only 100psi

josh green

Looks like the p/w was too tight, or possibly from the miss-shifts.

sewell94

You wouldn't want to reuse those.

swapit

p/w was to tight and they will make a great paper weight now..get a new set and check the cylinder walls and make sure they are still round top to bottom.should set p/w no tighter then .0045

ShawnR

lol i have a set that looks like that wont use that machine shop again

HondaKyle

FIND A NEW PLACE! or dont build the motor your self...

Mr. Em1

iTrader: (1)

those look very nice, use them again, they will seal up nice!lol get some new slugs my friend and def make sure those cylinders are still in good shape.

RaceProfessor

How does the walls look? Any scarring?

k_civic

That means a new set of piston :S

TypeRfit

iTrader: (6)

those are trashed. Anyone up for new paper weights?

BEAVERTOOTH

Flip over and instant ashtray

85mmek9

The walls look fine, as i can see, im going to take to the machine shop to make sure etc... only thing I could think of is aebs messed up on the bore size right?

king06

iTrader: (1)

I'm guessing that you send them the pistons with the block, if so, yes they did mess up.

dester223

Damn,

I see that when P/W clearances are off

or heavy detonation/REALLY bad tune.

Have you changed your wideband sensor lately?

NAH2B

wrong forum, please move to FI.....

mar778c

iTrader: (1)

PW clearance is too tight. How much whp is this motor making? Also, what do the tops and the chambers look like?

nonvtecallmotor

The block needs to be bored and honed again. I'll bet that it was detonation....

lohatch

either the PtoWall was too tight or the tune was off. those are junk

85mmek9

There was no detonation and my wb sensor is good, not that old, using an fjo. taking the block to the machine shop and ill let you know the final outcome.

HR-1320

nOT LIKELY, tOO TIGHT OR LOST LUBE.

extralargenog

iTrader: (1)

p2w was fuxored... Detonation would have shown on top by Pitting of the pistons