A “rocker” is the reverse of a hook. The bottom is con-
vex or bulged in the fore-and-aft direction. It can
cause the boat to porpoise.
following:
Avoid an electrical interconnection between the
MerCruiser Product, Anodic Blocks, or MerCa-
thode System and the paint by allowing a mini-
mum of 1 in. (26mm) UNPAINTED area on tran-
som of the boat around these items.
b
a
72005
a - Rocker
b - Transom
Any hook, rocker or surface roughness on the bot-
tom, particularly in the all-important center-aft portion
will have a negative effect on speed, often several
miles per hour on a fast boat.
Marine Fouling
Fouling is an unwanted build-up (usually animal-veg-
etable-derived) occurring on the boat’s bottom and
drive unit. Fouling adds up to drag, which reduces
boat performance. In fresh water, fouling results from
dirt, vegetable matter, algae or slime, chemicals,
minerals and other pollutants. In salt water, bar-
nacles, moss and other marine growth often produce
dramatic build-up of material quickly. Therefore, it is
important to keep the hull as clean as possible in all
water conditions to maximize boat performance.
a
b
71176
Antifouling paint, if required, may be applied to boat
hull observing the following precautions.
a - Antifouling Paint
b - MINIMUM 1 Inch (26 mm) UNPAINTED Area
IMPORTANT: DO NOT paint anodes or MerCa-
thode System reference electrode and anode, as
this will render them ineffective as galvanic cor-
rosion inhibitors.
Weight Distribution
Weight distribution is extremely important; it affects
a boat’s running angle or attitude. For best top speed,
all movable weight - cargo and passengers - should
be as far aft as possible to allow the bow to come up
to a more efficient angle (3 to 5 degrees). On the neg-
ative side of this approach is the problem that, as
weight is moved aft, some boats will begin an unac-
ceptable porpoise.
!
CAUTION
Avoid corrosion damage. Do not apply antifoul-
ing paint to MerCruiser drive unit or transom as-
sembly.
IMPORTANT: If antifouling protection is required,
Tri-Butyl-Tin-Adipate (TBTA) base antifouling
paints are recommended on MerCruiser boating
applications. In areas where Tri-Butyl-Tin-Adi-
pate base paints are prohibited by law, copper
base paints can be used on boat hull and boat
transom. Corrosion damage that results from the
improper application of antifouling paint will not
be covered by the limited warranty. Observe the
Index
Secondly, as weight is moved aft, getting on plane
becomes more difficult.
Finally, the ride in choppy water becomes more un-
comfortable as the weight goes aft. With these fac-
tors in mind, each boater should seek out what
weight locations best suit his/her needs.
1A-6 - GENERAL INFORMATION
90-823224--2 796
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1993, 1994, 1995, 1996, 1997 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.5 out of 5)
Marine readers have rated 1993 1997 Mercury-MerCruiser GM V8 454 CID 7.4L and 502 CID 8.2L Marine Engines Service Manual Number 16 4.5 out of 5.0 based on 4 product reviews. Hugely helpful service manual! Perfect. Thank you!
Manuals are all Important for Technician
This book is invaluable if you do your own repairs. Great book.
Could not find a copy until a search brought me here.
Excellent print.
Thank you