Table of Contents
ENGINE
EH42PLJEH50PL Engine
Water Pump Mechanical Seal Installation
1 .
Clean the seal cavity to remove all traces of old sealer.
2.
Place a new mechanical seal in the seal drive collar, and install on the pump shaft.
3.
Screw the guide onto the end of the pump shaft.
4.
Install the washer and nut and tighten to draw seal into place until fully seated.
S.
Remove the guide adaptor using the additional nut as a jam nut if necessary.
Water Pump Mechanical Seal Removal - Engine Installed
Water pump mechanical seal removal tool:
Replacement T-handle for 28721 OS:
287210S
2872106
This tool allows a technician to replace the mechanical water pump seal on EH42PL & EHSOPL engines without
removing the engine and splitting the cases.
Improper or careless use of this tool or procedure can result in a bent water pump shaft. Pump
shaft replacement requires engine removal and crankcase separation. Use caution while performing this proce-
dure. Make sure that the puller is parallel to the shaft at all times. Do not place side loads on the water pump
shaft or strike the puller or shaft in any way.
1.
After the coolant has been drained, remove the water
pump cover, impeller and the sealing washer.
(III. 1)
2.
Slide the main puller body over the outer portion of the
mechanical seal as shown in III. 2 and turn T-Handle
clockwise until it contacts water pump shaft. Continue
rotating until outer portion of mechanical seal is sepa-
rated from the metal seal body.
Polaris Industries Inc.
3.77a
S
I
,
W
h
Sealing Washer
ea Ing
as er
l
(Copper or
AIUminUm)\
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~
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Impeller
\
Oil
Seal
III. 1
Mechanical Seal
T-Handle
III. 2
5/98
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Troubleshooting
