I'm in the process of building H23 VTEC for one guy. The block is a bit tired of its life but I did what I could to give it some new vital forces. Upon disassembly it appeared that 3,4,5 mains were gone already,so new bearings came, the cranks is ballanced and micropolished but the machinist said it was not in a good condition but still usable.
The block is decked, mains are line honed. I try to make it safe as possible because I want this engine to last some time.
While putting new main bearings it appeared that the tolerances were on the end of loose side but still below service limit. First I installed oil squirters but after fighting with their proper bending to avoid collisions with pistons and the crank (anyone has a picture of them bent properly?) and having in mind loose bearings I chose not to install them finally. I'd prefer having more oil pressure to the bearings at the end.

But back to the topic The new rod bearings are H22 ones. This means they DO NOT have holes in them. H23 rods have a hole to let oil go up the rod to the piston pin. H22 rods (and bearings) DON'T (are the H22 pins lubricated only by squirters then?).
And the question is: what am I to do? No sqiurters, no holes in the rod bearings. Should I worry about piston pin oiling? Or leave it as it is now and pins would get some lubrication from the splash out while engine works?

Thanks
pentaq

 

You can probably get away with no explicit pin oiling. There is probably enough oil sloshing around to keep the necessary parts oiled well.

If the guy's going to road race or stay at WOT/high rpms for extended periods then I would drill the H22 bearings an oil hole using the H23 rod as a fixture. Of course it's a very good idea to use a little 120˚ countersink tool to chamfer the drilled hole. You don't want any burrs damaging the rod journal.

 

The car is DD. Occasionally taken to more spirited driving. So I think it's OK to leave things as they're now.
Thanks