Steel rod life expectancy

[Ed Wright]

Or clearances were wrong to begin with.

[joespanova]

Originally Posted by Ed Wright

Or clearances were wrong to begin with.

Not in this case. I'm a machinist for a major airline for 26 years.........and years prior to that. I have and have access to , every conceivable bore gauge and mic's anyone would need.
I assemble and check them........no chance in hell they were wrong.
Generally .0025-.003 at the vertical. Or whatever the rod manufacturer suggests.
I just ran it too long without an exam or freshening.

[Ed Wright]

Originally Posted by joespanova

Not in this case. I'm a machinist for a major airline for 26 years.........and years prior to that. I have and have access to , every conceivable bore gauge and mic's anyone would need.
I assemble and check them........no chance in hell they were wrong.
Generally .0025-.003 at the vertical. Or whatever the rod manufacturer suggests.
I just ran it too long without an exam or freshening.

SBC? Why so much clearance? You do know that aluminium rod will expand much faster than the steel crank, right? Imagine how loose they are at operating temps. I don't run my steel rods that loose.

[joespanova]

Originally Posted by Ed Wright

SBC? Why so much clearance? You do know that aluminium rod will expand much faster than the steel crank, right? Imagine how loose they are at operating temps. I don't run my steel rods that loose.

Well , I don't know what to tell ya........engine builders a lot smarter than me have run em that way for years........if I ran em tighter and it failed I'd be blaming it on that.........