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| Re: A15 block decking |
Subject: Re: A15 block decking
by TexasMidget on 2016/6/6 22:36:23
I found this on the Ratsun Forum regarding cross hatching:
CROSS HATCH ANGLES
The correct angle for cross hatch lines to intersect is approximately 45 degrees. Too steep an angle promotes oil migration down the cylinder resulting in a thin oil film which can cause ring and cylinder scufflng.
Too flat a cross hatch angle can hold excess oil which conversely causes thicker oil films which the piston rings will ride up on or hydroplane. Excessive oil consumption will result.
The diagrams will illustrate cross hatch angles.
My honing looks more like the "Too Flat" image. Is this something to have redone with the 45 degrees if that's possible after its been honed already? Any comments are welcome.
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