<blockquote class="quote" style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: rgb(80, 80, 80); border-right-color: rgb(80, 80, 80); border-bottom-color: rgb(80, 80, 80); border-left-color: rgb(80, 80, 80); border-image: initial; background-color: rgb(251, 252, 255); width: 795px; margin-top: 2px; margin-right: 2px; margin-bottom: 2px; margin-left: 2px; padding-top: 5px; padding-right: 5px; padding-bottom: 5px; padding-left: 5px; color: rgb(80, 80, 80); font: normal normal normal 11px/normal Verdana; ">quote:

ORIGINAL: earlwb
I don't know, it may be perfectly fine like that, as when the piston is near BDC and staring back up, it may have a suction effect and draw oil in.
</blockquote><br style="font-family: Verdana, Arial; font-size: 13px; background-color: rgb(251, 252, 255); " /><br style="font-family: Verdana, Arial; font-size: 13px; background-color: rgb(251, 252, 255); " /><span style="font-family: Verdana, Arial; font-size: 13px; background-color: rgb(251, 252, 255); ">When the piston is at TDC and the forces are the greatest, there is much less surface area for the oil pressure to work against. This particular crank pin doesn't look great at all, but when I got it the engine was a mess. I bought it for the carb.</span><hr style="font-family: Verdana, Arial; font-size: 13px; background-color: rgb(251, 252, 255); " /><span class="ultrasmall" style="font: normal normal normal 11px/normal tahoma, verdana, arial; background-color: rgb(251, 252, 255); ">gkamysz</span>