SECTION 2 / WATER LEAKS SOLUTIONS
4. Replace all three seals using installation tool.
• Place seal, flat side down, on installation tool.
• Fill groove with silicone grease. (figure 12)
• Place brass sleeve in pump head.
• Put tool into sleeve and press until seal pops into place.
(figure 14)
• Remove tool and then remove sleeve. (figure 15)
3. Reassemble pump head.
A. Thermal Relief Valve
1. Remove fastening cap and deflector cap. (figure 2)
2. Remove thermal relief valve housing. (figure 10)
3. Remove thermal relief valve. (figure 10 inset)
4. Inspect valve and replace with new valve if necessary.
B. Weep Holes – High-Pressure Seals
1. Remove 4 pump head bolts using socket wrench. (figure 11)
2. Remove pump head.
3. Turn the pump head over and carefully remove the three high
pressure seals. (figure 12)
11
A. Thermal Relief Valve
B. Weep Holes – High-Pressure Seals
figure 11
figure 12
figure 13
figure 10
figure 14
figure 15
Pump 777 9/28/01 3:56 PM Page 11
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