Engine Adapter, Pump Head And Piston/Unloader Housing; Axial Cam Drive Components; Piston And Unloader Housing - Briggs & Stratton CE8070 Troubleshooting Manual

Each of the three (3) pump pistons pass through an oil seal
in the piston and unloader housing. Note the oil seal and
pilot spacer illustrated in Figure 5.11. The oil seal lip will face
towards the piston spring and retainer to retain the pump
oil.
Figure 5.11 — Piston Chamber
Item Name
1

Piston and unloader housing

2 Piston
3 Oil seal
4 Pilot spacer
5 Pump head
Inspect the three (3) piston springs. Replace any spring that
is damaged or broken.
Engine Adapter, Pump Head, and Piston & Unloader
Housing
Clean all parts. Inspect carefully for cracks, damage, and so
forth. Check for corrosion. Replace any damaged, defective,
or corroded part as necessary.
Portable Pressure Washer Familiarization and Troubleshooting Guide

Axial Cam Drive Components

Referring to Figure 5.12, carefully inspect the engine adapter
bearing and the axial cam bearing assemblies for wear,
damage, and freedom of rotation. Replace any damaged or
defective bearing assembly.
Figure 5.12 - Axial Cam Drive Components
Item
1
2
3
4
5
6
Inspect the retainer washer and the thrust washer. Replace
if damaged.
Inspect the axial cam. Replace if worn excessively or
damaged.
44
Section 5 • Small Frame Gas Pump
Name
Thrust washer
Cage needle bearing
Retainer washer
Axial cam
Radial ball bearing
Engine adapter