oversized piston rings

[carfreak]

Yeah fellas i saw dis on statement on d website here an it state dat for the engine build d owner used oversized piston rings. he say dat reason for Over Sized rings is when they break in they will wear back to oem standard size.

daz tru ent i mean i doh no much abt engine rebuilding (which i am learning abt currently)

[brams112]

sounds like crap to me how that fitting on the pistons?

[neoise]

We used oversized rings when the block had slight wear and a ridge that was honed out. The rings were filed back down to achieve the required clearance in the bore whilst on the piston. This was done to ekkk out some more life out of the block before having to spend money to bore out to a bigger size etc. Old time short cut nah

[wagonrunner]

sounds like crap to me how that fitting on the pistons?

[when a face palm just not gonna facking cut it] sigh [/when a face palm just not gonna facking cut it]

Cylinder walls wear over time, so spec rings may not seal properly.
oversized rings help seal better.

[azoturbo]

We used oversized rings when the block had slight wear and a ridge that was honed out. The rings were filed back down to achieve the required clearance in the bore whilst on the piston. This was done to ekkk out some more life out of the block before having to spend money to bore out to a bigger size etc. Old time short cut nah

or resleeve it im currently faced with this decision

[Sanctifier]

You still have to hone the cylinders before using oversized rings...and buy a new (EXPENSIVE) gasket kit.
oversized rings (with "standard" pistons) might sound like a cheap fix...
until you have to deal with "piston slap", when cylinder bore wear gets worse, (sooner rather than later.)
<embed src="http://www.youtube.com/v/dwRC7qyC9h8&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed>

Oversized rings also tend to suffer from "ring flutter" more so than if they were correctly sized.
You save on the "rebuild" (for awhile)... but spend MUCH more on OIL!
BTW when the 2nd rebuild happens (pretty soon) you have to buy a gasket overhaul kit...AGAIN!

IMHO if you are keeping the car, it's better to get a small bank loan (18-24 months?) and do it right the first time.
More economical (in $$$...and OIL CONSUMPTION) in the long run.

Link--> Fixes for Oil Use and Piston Slap.

My $0.02¢

[Wizard]

sanctifier has the answer there

but the original thread post about wearing to factory size is absolutely wrong you cant wear the cylinder walls to get smaller lol

[Rayden6]

Anybody knows the Qg15 cylinder head and cam torque specs?