Justy L3-1189cc 1.2L (1987)
3.
Press out mechanical seal with mechanical seal press (tool #498835400) or aftermarket equivalent. The seal can also be removed with mechanical
seal remover (tool #499715400) and mechanical seal remover plate (tool #499685510).
INSPECTION
1.
Check ceramic seat for cracks.
2.
Check contact surface between mechanical seal and ceramic seat for wear or damage.
3.
Check impeller for corrosion or damage.
4.
Check oil seal lip for wear, damage or hardening.
5.
Check all related parts for wear, cracks or other damage. Replace any components not in serviceable condition.
ASSEMBLY
Mechanical Seal Installation
1.
Using mechanical seal press (tool #498835400) or mechanical seal installer (tool #499795400) or aftermarket equivalents, press mechanical seal
into crankcase cover. Be sure to seat seal against cover surface.
a.
Prior to pressing, coat outer circumference of mechanical seal with "Three bond No. 1303" or equivalent. Coat impeller sliding surface with
coolant.
b.
When replacing pump impeller, install a new mechanical seal.
2.
Install crankcase cover. Always use a new gasket.
3.
Manually press impeller onto balancer shaft and measure clearance between impeller blade tips and crankcase cover. Standard clearance is 0.012 -
0.035 in (0.3 - 0.9 mm). Maximum clearance is 0.043 in (1.1 mm). Add or subtract spacers as needed to obtain correct clearance.
Water Pump Impeller Installation
4.
Install impeller retaining bolt and washer. Torque to 6.9 - 7.6 ftlb (9.3 - 10.3 Nm). Lock balancer shaft with a screwdriver while tightening
impeller bolt.
5.
Install pump cover with a new gasket.
6.
Install remaining components in reverse order of removal.
7.
Fill cooling system with approved coolant. Add correct quantity of oil to crankcase.
8.
Warm engine to operating temperature. Check that coolant is circulating and system is full. Ensure that there are no leaks.
