Figure 38
10. Heat engine case around area of impeller lightly with a small propane torch.
Using a 3/8” diameter x 8” long steel rod, tap impeller assembly out of engine as
shown in figure 39.
Figure 39
CAUTION:
Too much heat can be detrimental to the engine cases.
11. The shaft assembly is serviceable. Use a 4mm hex key to remove impeller
retainer screw. Remove impeller, seal and both bearings. Check shaft for wear in
the area of the seal. If there is any sign of wear (like a groove) replace the shaft.
Figure 40
12. Reinstall new bearings, seal (open side toward impeller) and impeller. Clean all
threads and use green (wicking / bearing retainer) thread locker.
13. Using a liberal amount of grease on the outside seal, bearings and inside of
case, reinstall bearing assembly by using a 0.500” ID by 1.000” OD steel tube 2”
long and tap on end of tube per figure 41.
Figure 41
14. Re-assemble in reverse order of disassembly.
59
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