engine and drivetrain how can you tell if an engine block NEEDS to be bored?

[Guest Anonymous]

i'm wondering what necessitates a block being bored out versus just being honed? thanks.

[Guest Anonymous]

the bore. They'll check the size, taper, and ovality (is that really a word?).

Cheers!

John N

[Guest Anonymous]

URL: http://www.winnsecurity.com/norcal02

http://dictionary.reference.com/search?q=oval

-Justin

[Guest Anonymous]

a ridge at the top of the cylinder its a safe bet that it should be bored.

So fess up Carl, what are you thinking about doing now?

[Guest Anonymous]

(nt)

[Guest Anonymous]

(nt)

[Guest Anonymous]

i've got that extra m20 sitting in the garage, so i was thinking of trying to rebuild it as a budget 2.7 stroker using a 524td crankshaft and eta pistons. it has a ton of miles on it, though, and if it had to get bored out, i'd have to get custom pistons, which would kill the 'budget' part of the equation.

[Guest Anonymous]

(nt)

[Guest Anonymous]

URL: http://www.winnsecurity.com/norcal02

(nt)

[Guest Anonymous]

(nt)

[Guest Anonymous]

i hate when that happens

[Guest Anonymous]

(nt)

[Guest Anonymous]

URL: http://www.strictlyeta.net/328i_1.html

M20 E to I 2.8 Liter Engine Conversion

[Guest Anonymous]

If you can feel a ridge at the top of the cylinder, it sure needs to be rebored. I did build many engines, some with scratches on the wall, some with ridges. You can live with a scratch but not with a ridge. It will eat up the rings or the land into the piston because the ring is not perpendicular to the walls then.

I did race a VW in another life, 1.8L GTI engine, i did open the engine every race, honned the block and changed rings every time. i did it at least 5 times. The block was severely scratched, it eated up some sand (oval semi dirt race). Engine never smoke, no ridge. I finaly sold the engine to somebody, he still run the car, a 82 Scrirocco. He his very happy of the power, bet that he dont know that this engine has revved 8krpm many many times...

Pat