7-40
CHAPTER 7
Propulsion Systems (Stern Drives)
General Typical Information For Volvo/MerCruiser Stern Drives
All stern drives require maintenance just like your engine. Stern drives
require daily, weekly, monthly, and yearly inspections to keep the
equipment in the best working condition. Also, down time is kept to a
minimum so your vessel is ready to go when you need it.
CHECKING THE WATER PICK-UP FEEDS
Your water pick-up feeds are normally located on your stern drive.
They consist of a series of holes that raw water can fl ow through,
where it will be picked up by your cooling system. Ensure that these
are not blocked before each trip, or you will risk engine failure. Raise
the drives to the trailer position before the outing and look for any
possible debris, weeds, or even plastic bag material caught around the
intake holes. Refer to the engine manufacturer’s operation manual for
further information.
CHECKING THE BELLOWS
The normally black upper rubber insulating part is the stern drive
(bellows) The bellows cover the universal joint assembly (like your
automobile). These rubber bellows should be kept clear of debris
and replaced if ripped since ingested water will cause the joint roller
bearings to fail over time. One possible indication that the universal
joints have failed due to a leaky bellows or faulty universal seal due to
water in the drive housing is by turning the steering wheel sharp while
making forward headway in the water If you hear a chatter type of
noise this may indicate the universal joint bearing needs attention. If
water enters the stern drive here, have the drive inspected by a marine
professional or your Regal dealer.
Note: If the above condition exists, do not continue to run vessel.
On select out drives the lower bellows is part of the exhaust system.
To Next Page
Loading...
