OM606A ring gap?
OM606A ring gap?
Before one atempt to install new rings in a block , 2 things need be carefully watched, cylinder wall roundness and piston wall clearence.
Out of roundness will cause your ring to leak and burn its surface causing a bad seal and producing a lot of blow by that will bring oil out with it.
Too much Wall clearence will cause piston rocking wich will lead to premature ring wear and cylinder ovality, leading to same problem as above.
I did installed many rings in used cylinders with minimum prep... but u got to know the risk.
FD,
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This numbers are stated in MB repair manual as Max. Anything above that call for repair. If i were u wouldn't be too woried with gap as this is arguable. Generally a .5mm gap is acepted for diesels in the 80 to90 mm piston dia.
Before one atempt to install new rings in a block , 2 things need be carefully watched, cylinder wall roundness and piston wall clearence.
Out of roundness will cause your ring to leak and burn its surface causing a bad seal and producing a lot of blow by that will bring oil out with it.
Too much Wall clearence will cause piston rocking wich will lead to premature ring wear and cylinder ovality, leading to same problem as above.
I did installed many rings in used cylinders with minimum prep... but u got to know the risk.
FD,
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