PURSUIT 3000 EXPRESS, Owner'S Manual

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3000 EXPRESS
1-6
1.6 Running Gear
Shaft Logs and Dripless Seal
The shaft logs, which are fastened into the hull
bottom, allow the propeller shaft to extend and
rotate through the hull. The shaft log is equipped
with a special “Dripless” propeller shaft seal. To
lubricate this seal, sea water from the engine
cooling system is injected into the shaft seal
through a hose that is connected to the engine and
the shaft seal housing.
The shaft seal must have positive water injection any time the propeller shaft is rotating. The
water flow to the seal should be tested annually by removing the water injection hose from the
seal fitting and running the engine at idle with the transmission in neutral. There should be a
positive flow of water from the hose. If no water is flowing from the hose, contact your dealer
or the Pursuit Customer Relations Department before operating your boat. Some water will leak
into the bilge from the hose fitting on the seal assembly during this test. The hose should
immediately be reattached and the hose clamps tightened securely when the test is completed.
Please refer to the seal manufacturer owner's manual for additional information on the shaft seal.
Proper performance of the shaft seal is directly dependent upon correct propeller shaft alignment.
Propeller damage, a bent strut or shaft, or abnormal wear, settling, etc. are common reasons for
misalignment. This can cause such problems as repeated shaft leakage, excess seal wear, shaft
log and assembly damage, premature strut bearing wear, etc. It is, therefore, important that the
alignment be periodically checked and adjustments are made when necessary.
ALWAYS BE SURE TO USE THE SHAFT REMOVAL SLEEVE AND FOLLOW THE
SEAL MANUFACTURER'S INSTRUCTIONS WHEN REMOVING OR INSTALLING A
PROPELLER SHAFT. IMPROPERLY REMOVING OR INSTALLING A PROPELLER
SHAFT CAN PERMANENTLY DAMAGE THE SHAFT SEAL AND CAUSE IT TO
LEAK.
Propeller Shaft Seal