Pleasurecraft Marine Pleasurecraft 302/2A Owner's Manual - page 28
Cylinder Block - Two plugs - one in each side of cylinder
block.
"Y" Fitting - One plug.
3. After system has drained completely, coat threads on
plugs with sealing compound, reinstall plugs.
Sea Water Section
1. Remove plug and anode from heat exchanger (rear).
2. Remove sea water intake hose from inlet side of sea
water pickup pump.
3. Remove drain plugs from manifolds at front.
4. Remove plug from bottom of transmission cooler.
5. After system has drained completely, reinstall hoses and
plugs. Coat threads on plugs with sealing compound
before installing, then reinstall plugs.
Cleaning Seawater Section of Exchanger
NOTE: It may be necessary to remove heat exchanger from
engine to properly clean it.
1. Remove plug and anode from forward end and rearmost
bottom of heat exchanger.
2. Clean water passages by inserting a suitable size brush
thru them and flush with city water.
3. Seal plugs and replace in heat exchanger.
4. Tighten
securely.
5. Fill system, according to procedure if heat exchanger is
removed, and operate engine. Check for leaks.
Adjusting Water Pump Drive Belt Tension
1. Check belt tension by depressing upper strand of belt at
point midway between the two pulleys.
2. Belt should depress 1/4" (6.35mm). If depression is
more than 1/4", adjust tension by loosening water pump
mounting screws and pivoting pump, as required, to
obtain correct tension.
3. After correct tension has been set, tighten mounting
screws.
Adjusting Alternator Drive Belt Tension
1. Check belt tension by depressing upper strand of belt at
point midway between the alternator pulley and the
circulating water pump pulley.
2. Belt should depress 1/4" (12.7mm). If depression is
more than 1/4", adjust tension by loosening alternator
mounting screws and pivoting alternator, as required, to
obtain correct tension.
3. After correct tension has been set, tighten mounting
screws.
Lubrication System
Draining Engine Oil and Replacing Oil Filter
1. Run engine until temperature gauge indicates normal
operating temperature. The benefit of draining is lost, to
a large extent, if the crankcase is drained when the
engine is cold, as some of the suspended foreign
material will cling to the sides of the oil pan and will not
drain out readily with the cold, slower-moving oil.
2. Pump oil out of oil pan thru dipstick tube with an oil
drain pump. The dipstick tube extends is to the bottom
of the oil pan and is designed for thi s purpose on the
302 engine. A tube must be inserted through the dipstick
tube on the 351 engine.
3. Remove filter from cylinder block. Be sure that ola
sealing ring is removed from cylinder block.
4. Coat sealing ring (located on new filter) with engine oil
and thread filter on block. Tighten securely by hand.
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