Pistons not firing 100%

[IEVAQ8]

also, if the bore is okay, make sure u get it honed, or u hone it before putting in new pistons..........

regarding retune............. i would as u can mostlikely push it harder with stronger pistons..............

[tayl51601]

Ill just hone it myself lol im not taking out the bottom block

Keep in mind adrian tuned my car and hes in sydney lol plus its already running between 9 and 10psi and thats all i need

Better watch your pistons tom if you ever boost it up on the stock internals!! Just prooves sometimes you can be unlucky lol

[IEVAQ8]

just get someone to check over ur hone...........

adrian is the man at tuning, but i would definatly get it checked or re-tuned with new internals, unless u keep the exact same comp and size pistons.............

fingers crossed mine stays together and healthy

[tayl51601]

The piston size and comp is staying the same so it should be alright.
Im curious if it was actually the long trip down to sydney that caused this to happen

I just found out it wasnt just the 4th piston thats f**ked, 3rd piston had a crack in the top and the 2nd piston fell to peices when i took it out...

[IEVAQ8]

i dont see how the ong drive would have caused it, i would definatly get it retuned once done

[lil_foy]

i dont see how the ong drive would have caused it, i would definatly get it retuned once done

Maybe it wasnt tuned via the trip down?

[fatboyz39]

Wow pistons look sick. Detenation would of cause that.

[tayl51601]

i dont see how the ong drive would have caused it, i would definatly get it retuned once done

Maybe it wasnt tuned via the trip down?

Yea it wasnt tuned properly on the way down, was running pretty lean

Wow pistons look sick. Detenation would of cause that.

I still got no idea what would have caused it though, it could have been a few things.
Should be alright though with the new pistons in. I ordered some yesterday.
Im just getting CP's with stock compression and standard size, my cylinders are like mirrors so they are still in good condition!
Will only be getting them next week though because they had to come from america...... Got a full top and bottom end rebuild gasket kit thanks to Yonas on its way too
And the head has been cleaned up in diesel, cleaned bottom block.......Will be like driving a new car......

[JasonGilholme]

Fresh cylinders should have visible machine marks in them shouldn't they?

where as glazed cylinders will have a mirror style look.

Can someone else confirm as its just what i would expect and have seen.

[tayl51601]

Damn lol i thought the mirror finish was a good thing

To get that fresh cylinder look just means a honing doesnt it?? Wouldnt mind doing that before the new pistons go in any way if i could get someone to give me a hand lol

Just out of curiosity what difference would it make having the cylinders honed compared to leaving them the way it is?? The pistons would still slide through smoothely and the rings would still stop any slight leaks whether its honed or not.

[tayl51601]

By the way congrats on getting your car on the ozhonda calender

[onnos]

u want to hone it to help seat the rings in. and when u say it was lean u mean full throttle lean or lean all over. if u werent thrashing it on the way down and were driving it normally then being lean with no load wont break ring lands like u have. its usually a combination of aggressive ignition timing and or lean under full load that will break factory hooonda pistons