Operation CHARM: Car repair manuals for everyone.

Assembly

Fig. 4 Thrust plate & rotor installed on driveshaft:




Fig. 5 Installing driveshaft assembly:




Fig. 6 Installing pump ring:




Fig. 7 Installing rotor vanes:





1. Lubricate new O-ring seals with Vaseline and place in pump housing.
2. If drive shaft oil seal was removed during disassembly, lubricate new seal with Vaseline. Then install seal in pump body front hub, using a suitable seal driver.
3. Position thrust plate and rotor on drive shaft. Then install rotor retaining ring in groove of drive shaft, Fig. 4.
4. Place pump housing on work bench as shown in Fig. 5 and install two pump ring dowel pins in bore of housing.
5. Install drive shaft in housing, making sure shaft seats properly.
6. Install pump ring in housing over two dowel pins with rotation arrow on ring to rear of pump housing, Fig. 6.Arrow on outer edge of pump ring points in direction of pump rotation (counterclockwise when viewed from rear of pump).
7. Install rotor vanes in slots of pump rotor, with radius edge of vanes toward outside of rotor, Fig. 7.


Fig. 8 Installing pressure plate:




Fig. 9 Installing pressure plate springs:





8. Position pump housing on two wood blocks and push parts down into place as shown in Fig. 8.
9. Lubricate outside diameter and chamfer of pressure plate with Vaseline to insure against damage to O-ring seals in housing. Then install pressure plate in housing over dowel pins.Ported face of pressure plate goes toward pump ring, Fig. 8.
10. Using a 2-3/4 inch diameter sleeve to apply pressure to outer edge of pressure plate only, press pressure plate into seat. Pressure plate will travel about 1/16 inch to seat. Do not press or hammer on center of pressure plate as to do so will cause permanent distortion resulting in pump failure.
11. Install two pressure plate springs, one over each dowel pin in pump housing, Fig. 9.


Fig. 10 Installing end plate & retaining ring:




Fig. 11 Installing flow control valve & spring:




Fig. 12 Installing pressure union O-ring seal:





12. Lubricate outside diameter and chamfer of end plate with Vaseline to insure against damage to O-ring seal in housing. Then press end plate into housing. While holding end plate down in housing, install end plate retaining ring. Be sure end plate is completely and solidly seated in groove of housing, Fig. 10.
13. Remove assembly from press and place on work bench. Install flow control spring and valve in bore of housing. Make sure hex head screw goes into housing bore, Fig. 11.
14. Position pressure union O-ring seal in bore of housing over flow control valve, Fig. 12.
15. Mount pump housing in vise with soft jaws and install reservoir.
16. Install pressure union and new O-ring seal in reservoir. Tighten union.
17. Install mounting stud and new O-ring seal in reservoir. Tighten stud.
18. Install drive shaft key in slot in shaft. Support shaft on opposite side while installing key. Install reservoir cap.