18-09-2019, 09:12 AM
Austin did it the way they did because they knew it would work, time has proved them to be correct.
Oil not only lubricates, it cools as well, a good flow through of oil is essential, if the oil is held in the bearing it will overheat and the bearing will run.
The holes in the rod will allow a through flow every revolution of the crank resulting in a fresh charge of cooler oil.Side clearance is also important.Woodrow suggest up to 1/16” .
Re big end bearing loading, the biggest load is on the cap side on the exhaust stroke so I wouldn’t modify the cap in any way. Obviously use new bolts on reassembly
Oil not only lubricates, it cools as well, a good flow through of oil is essential, if the oil is held in the bearing it will overheat and the bearing will run.
The holes in the rod will allow a through flow every revolution of the crank resulting in a fresh charge of cooler oil.Side clearance is also important.Woodrow suggest up to 1/16” .
Re big end bearing loading, the biggest load is on the cap side on the exhaust stroke so I wouldn’t modify the cap in any way. Obviously use new bolts on reassembly