Crankshaft Pulley - Check - Perkins 1204F-E44TA Systems Operation Testing And Adjusting

UENR4490-01
5. Measure the end play on idler gear (2). Refer to
Disassembly and Assembly, "Idler Gear - Install"
for the correct procedure. Refer to Specifications,
"Gear Group (Front)" for the end play
measurement.

Crankshaft Pulley - Check

The crankshaft pulley is installed on the front of the
crankshaft.
Replace the crankshaft pulley if any of the following
conditions exist:
• There is movement of the crankshaft pulley.
• There is a large amount of gear train wear that is
not caused by lack of oil.
• Analysis of the engine oil has revealed that the
front main bearing is badly worn.
• The engine has had a failure because of a broken
crankshaft.
Check the areas around the holes for the bolts in the
crankshaft pulley for cracks or for wear and for
damage.
Use the following steps in order to check the
alignment and the runout of the crankshaft pulley:
1. Remove any debris from the front face of the
crankshaft pulley. Remove any debris from the
circumference of the crankshaft pulley.
2. Mount the dial indicator on the front cover. Use the
dial indicator to measure the outer face of the
crankshaft pulley. Set the dial indicator to read
0.00 mm (0.00 inch).
3. Rotate the crankshaft at intervals of 45 degrees
and read the dial indicator.
4. The difference between the lower measurements
and the higher measurements that are read on the
dial indicator at all four points must not be more
than 0.18 mm (0.007 inch).
If the reading on the dial indicator is more than
0.18 mm (0.007 inch), inspect the pulley for
damage. If the pulley is damaged, use new parts
for replacement.
5. Move the dial indicator so that the dial indicator will
measure the circumference of the crankshaft
pulley. Set the dial indicator to read 0.00 mm
(0.00 inch).
This document has been printed from SPI2. NOT FOR RESALE
6. Slowly rotate the crankshaft in order to measure
the runout of the circumference of the crankshaft
pulley. Use the highest reading and the lowest
reading on the dial indicator. The maximum and
the minimum readings on the dial indicator should
not vary more than 0.12 mm (0.005 inch).
i03910449
If the reading on the dial indicator is more than
0.12 mm (0.005 inch), inspect the pulley for
damage. If the pulley is damaged, use new parts
for replacement.
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Basic Engine