QA

How To Drain Water From Inboard Outboard Engine

How do you drain water from an inboard engine?

Drain the Engine (for inboards and stern-drives) Locate and open the petcocks (some engines have bronze plugs similar to bilge plugs) underneath the manifolds and on the sides of the engine block. Remove the water-pump hose from the bottom of the water pump to let it drain completely.

How do you winterize an inboard outboard boat motor?

How To Winterize an Inboard Boat Warm the Engine to Winterize Inboard Boat. Fill the Tank to Winterize Your Inboard Boat. Add Antifreeze to Winterize Your Inboard Boat. Spray the Engine with Fogging Oil. Winterize Your Boat with an Oil Change. Clean & Spot Check Everything. Store Your Boat with SecurCare Self Storage.

How do you drain water from a Mercruiser?

Where are the drain plugs on a 3.0 Mercruiser?

The drain plug is at the bottom rear of the boat.

Do outboard motors self drain water?

All of the water passages in an outboard will self drain. Turning the engine over on while out of the water is not going to expel any waterthat will only damage the water pump impeller.

How do you drain water out of an engine block?

The basic steps to flush a car engine block are: Remove the lower radiator hose and catch the draining coolant in a bucket. Remove the top radiator hose and flush the system out with a normal hose. Continue until the water runs clear out of the bottom of the engine. Refill with coolant and reattach the radiator hoses.

Where does water come out of inboard outboard?

Fresh seawater is normally drawn by a belt driven pump from a thru hull fitting in hull of boat on inboards, or by water pump in stern drive through the lower unit water passages on an inboard/outboard, and then exits the boat through the exhaust.

Do you have to winterize an inboard motor?

If you’ve got an inboard or a sterndrive (inboard/outboard) boat motor, then winterizing is an absolute must-do. This process prevents gunk from building up, keeps condensation out of the fuel tank and just overall keeps your engine healthy.

How much does it cost to winterize an inboard boat?

If you winterize your boat yourself, it will cost you about $250. This price includes the cost of winterizing the engine, the other systems of your boat, and cleaning it, stem to stern, inside and out. However, if you have the work done at a boatyard, expect to spend $500 up.

Do you leave antifreeze in boat engine?

Note: Sam likes to leave the engine block flushed but empty for the winter. However, some marine engine manufacturers recommend filling the entire engine with RV antifreeze. Always follow your engine manufacturer’s advice.

Should you leave your boat motor in the water?

It’s best to tilt your outboard up when leaving your boat in the water to prevent marine growth from forming and from corrosion eating away at its metal parts. That being said, there are some instances when you may prefer tilting your outboard down.

Should I leave my outboard motor up or down?

You want to leave the engine in the totally trimmed down position. This will allow all of the water to leak out of the engine, midsection, and lower unit. Making sure that there is not any water in the Lower Unit that could rust gears or freeze and destroy the gear case by flushing the engine with fresh water.

Is it OK to store an outboard motor on its side?

It’s almost never a good idea to lay an outboard motor down on its side or back. Mercury Marine recommends upright storage to allow the water to drain from the motor, but Mercury also says that a motor may be stored on its side after the water has drained completely.

Will draining the radiator drain the block?

Remove the radiator fill cap when draining the coolant from the engine block. This will relieve any trapped pressure inside the block and the coolant will flow out faster.

Will draining the radiator drain the engine?

Simply draining the radiator may get rid of most of the old antifreeze but could leave some coolant and contaminants behind, which would then mix with and pollute your new antifreeze and cause overheating. If you flush the radiator but ignore any leaks, your engine is likely to overheat again shortly after the flush.

How do you flush an engine block without a radiator?

unhook the out line from your heater core in the engine bay and stick your garden hose on there and slowly turn on the hose . This will back flush the whole system .

Can you start an inboard motor out of the water?

Starting a boat without water is not recommended. Most outboard and inboard engines use impellers (rubber pumps) to run water to the boat’s cooling system. Without water to cool off and lubricate, the impeller will heat up super fast and possibly damage.

How long can you run an inboard without water?

What is the maximum amount of time you can run a boat motor without water? The maximum amount of time you can run your boat motor without water is between 2 and 10 seconds if you must.

Where does outboard exit water?

Water is inducted through the lower unit by a water pump impeller, and then forced upward to circulate throughout the powerhead, and eventually exits through the exhaust system.

Should I winterize my boat myself?

For the handy, self-sufficient boat owner, taking care of winterizing yourself is a great way to save money. Ironically, DIY can potentially even save you some time. Winterizing a boat can be done in less than an hour in many cases, less time than you’d spend just driving the vessel to and from the marina or shop.

What happens if you don’t winterize outboard?

If You Don’t Winterize Your Boat, Here’s What Happens: Water freezes and expands and can damage anything it’s trapped inside. Water may seep into unprotected spaces to do this. Acidic and corrosive wastes, salt and corrosion buildup can damage delicate parts in engines. Fuels break down or grow dirty.