27-11-2018, 11:58 PM
(27-11-2018, 12:06 PM)Colin Wilks Wrote: Shells or white metal? I discussed this last night with my mentor Nick Turley. Nick made the point that white metal is much more forgiving than shells when it comes to the crud that inevitably circulates in a traditional splash fed set up. As I do not want to get into fitting an oil filter I have decided to stick with white metal.Hi Colin, if I understand correctly you are using a new crank with remetaled Nippy rods?
Bear in mind you will need to get the rods narrowed to fit the crank, you will have no white metal
on the sides of the bearing housing although that is not a problem as new rods run steel to steel with no problem.You will also have to find some suitable bigend bolts from somewhere as the Nippy ones are quite different to ordinary ones.
Hi Jon, I would not use shell bearings without a flter, shells will not tolerate foreign matter.
I have Saenz conrods, shell bearings, and a full flow filter on my heavy 12/4.
My Phoenix cranked Seven Engine has a filter, they are not difficult to fit, and apart from tapping deeper into the jet gallery to fit the bung, no real modification,and can revert to original if wanted.
Hi Terry, my question of why holes in the rods has not been answered, for me drilling holes into the bearing housing will result in no hydrodynamic oil pressure.
If the holes are drilled for increased oil flow, surely this can be achieved by increasing the side clearance.
Best Wishes & happy Sevening to all