With nearly 130 000 miles on the clock, it was running fast and strong. However it had begun using (consuming, not burning) alot of oil. So I decided to rebuild the engine.
So far I have inspected and measured the cylinder bores and the crank journals:
I'd be grateful if you could answer a few question:
- From the measurements and photos shown below, would you say the crank is okay to re-use? If so can I just polish the crank and install new standard-size bearings?
What can you tell from the wear patterns on the bearing shells?
Also. Proabably a silly question but, how do you clean out the oilways inside the crank?
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Cylinder bore measurements(top, middle and bottom). The first set of readings were taken with the bore gauge facing across the crank, and the second set was taken along the crank to check for ovality (is "ovality" a word??)
Cylinder 1: 84.01, 84.01, 84.02
Cylinder 2: 84.01, 84.00, 84.01
Cylinder 3: 84.02, 84.00, 84.01
Cylinder 4: 84.01, 84.005, 84.02
Cylinder 1: 84.01, 84.01, 84.005
Cylinder 2: 84.01, 84.00, 84.01
Cylinder 3: 84.00, 84.01, 84.01
Cylinder 4: 84.005, 84.005, 84.01
Crankshaft Main journals (Two readings taken approx 90 deg to eachother to check for, er, oval-ness)
Main 1: 52.99, 52.995
Main 2: 53.00, 53.00
Main 3: 52.995, 52.99
Main 4: 52.989, 52.985
Main 5: 52.989, 52.989
Crank pins (As above)
Pin 1: 50.791, 50.791
Pin 2: 50.80, 50.80
Pin 3: 50.799, 50.799
Pin 4: 50.80, 50.80
More to come soon!