E 250 3/4 Ton Van V8-5.4L CNG VIN M (1997)
Crankshaft: Testing and Inspection
Runout
NOTE: Crankshaft main bearing journals must be within specifications before checking runout.
1. Use the Dial Indicator with Bracketry to measure the crankshaft runout.
^
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.