F 150 2WD Pickup V8-4.6L CNG SOHC VIN 9 (1997)
Crankshaft: Testing and Inspection
Runout
NOTE: Crankshaft main bearing journals must be within specifications before checking runout.
1. Use Dial Indicator with Bracketry to measure the crankshaft runout.
2. Rotate the crankshaft and subtract the lowest dial indicator reading from the highest dial indicator reading to figure the crankshaft runout. If it is
out of specification, replace as necessary.
