 Re: wrist pin needle bearing lubrication holes
What type of nedle bearng you going to use caged or the type that are in a can I call torrington needle bearings.
The caged shouldn't need extra oiling holes needle bearings are a low friction bearing and have planty of room for the premix that's being pumped through the engine. There is a **** of a storm of fuel/oil mix slinging around inside and getting on everything and everwhere inside. I'd hate to be inside and try to stay dry.
I've heard it is very hard to drill the rod some sort of very hard steel I don't know as I didn't try to drill one yet. But extra holes shouldn't hurt as long as you can deburr the hole on both ends. I'm not sure how a guy would deburr a torrington needle bearing housing on its inside there is the rub. Might be better to grind a opening and aline the opening with the rods holes before you press in that type of bearing into the rod.
Let us know how it goes. |