Water pump & thermostat – Generac Power Systems 53187 User Manual
Page 89
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
PART 3- ENGINE
LUBRICATION & COOLING SYSTEM
1
SECTION 3.2
WATER PUMP & THERMOSTAT
Section 3.2
WATER PUMP & THERMOSTAT
3. Use a press to remove the bearing from the water
pump (Figure 2).
4.
See Figure 1. Remove the IMPELLER and ME-
CHANiCAL SEAL from the casing.
5. See Figure 3. Use a press to separate the bearing
from the fan pulley.
1.
Inspect all parts of water pump for cracks, wear,
damage. Replace any defective part(s).
2. Replace bearing if it rotates rough or if its conbtact
with the casing is defective.
3.
Replace the bearing if shaft play at end of shaft
exceeds 0.008 inch (0.2mm).
WATER PUMP REASSEMBLY:
1. Apply liquid packing (Threebond 2) to the casing side
of the mechanical seal. Press fit the seal into the casing.
2. Press fit the bearing into the casing.
3. Align the pump case end face with the bearing end
face, as shown in Figure 4.
Figure 4. Pump Alignment
PAGE 3.2-1