DRIVE SHAFT / PROPELLER SHAFT MODELS
SERVICE MANUAL NUMBER 23
90-861326--1 MARCH 1999 Page 8F-15
b. Tapered Bore Type:
(1.)Check nut on shaft for tightness.
(2.)If nut was loose, remove coupling and check for damage to taper on shaft or in
coupling.
(3.)Replace worn parts.
(4.)Always make sure key is not sticking out of coupling.
(5.)Install coupling on shaft without the key.
(6.)Mark the shaft (behind the coupling), then remove the coupling.
(7.)Now install the key and coupling. Make sure coupling still lines up with the mark.
This ensures that key is not oversize and holding the tapers apart.
3. Check output coupling flange of transmission.
Checking Coupling Outside Diameter - Rotate One Complete Turn
Checking Coupling Face - Rotate One Complete Turn
4. If there is movement in Step 3, replace output coupling.
5. Replace damaged parts and realign engine as outlined.
6. Torque propeller shaft coupling and transmission coupling (output flange) to 50 lb. ft. (68
N·m). Tighten set-screws securely, if equipped. Safety wire set-screws, if so equipped.
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