|
...Food for thought... Tight on mains (.0005-.0009) and loose on rods (.0017-.0022) is what I have seen on Honda, Toyota, and other 4 cylinder engines that spin to 8K+ RPM from the factory. So explain this magical tighter on the rod journals for higher RPM? I've done some engine building and haven't had any oiling issues with tight on mains and loose on rods in that range of spec, also the most overlooked issue when I have been assembling engines is the block itself overheated severely and the main journal caps were extremely loose fitting, (took no effort to remove) and also the crankshaft is out of round which would cause main journal bearing failure and lower oil pressure to the rod bearing which would cause an engine to fail.
|