03-05-2020, 09:57 AM
Once I have finished the head and block on my engine, I shall start on the crankcase and crankshaft.
Everything which I have read about the centre bearing seems to suggest that the middle of the crankshaft deflects downwards, towards the head, when the centre bearing is tightened. I understand that this is because the centre casting in the crankcase is lower than the other two bearings. For this reason, shims are sometimes fitted to raise the bearing.
Are the any cases where the centre casting is higher, causing the crankshaft to deflect upwards and, if so, how can you detect this when test-assembling the crankshaft and bearings?
Regards,
Jamie.
Everything which I have read about the centre bearing seems to suggest that the middle of the crankshaft deflects downwards, towards the head, when the centre bearing is tightened. I understand that this is because the centre casting in the crankcase is lower than the other two bearings. For this reason, shims are sometimes fitted to raise the bearing.
Are the any cases where the centre casting is higher, causing the crankshaft to deflect upwards and, if so, how can you detect this when test-assembling the crankshaft and bearings?
Regards,
Jamie.