[QUOTE=earlwb;11760260]Did you put in something for lubrication holes or grooves or something into the rod ends? usually they have a small hole on both ends on the crankshaft side to help feed oil into the rod. /QUOTE]

Um, why let the oil out prematurely by drilling a hole or cutting a slot somewhere along the along the big end rod eye?

In a single overhung crank engine oil feed is directional, going from the high pressure end of the oil slinger crankweb to the much lower pressure end of the back plate.

Sure, the little end may benefit from an exit hole or slot because its oil feed is equal from both ends and similarly with any double overhung crank but on a single overhung crank I think that its a mistake to follow sound thinking from full sized engines.

I have seen many engine manuals extolling the virtues of oil exit holes but none have shown examples of single hung cranks. - has anyone seen different?

Cheers.