BoatMend

Repair & maintenance guides

Plain-English, step by step, written for owners. Pick your engine to see the guides that apply to it.

99 of 509 guides · page 4 of 5

Hull & systemsModerate

Hydraulic Steering: Check Fluid, Bleed Air and Fix Stiff or Loose Steering

Check the fluid in your hydraulic steering helm, bleed out the air that makes steering spongy, and track down the usual causes of stiff, loose or noisy steering. Includes notes for boats with mechanical cable steering.

1 h 30 min Outboard, Sterndrive (I/O), Gas inboard Shop: $150-400
Hull & systemsModerate

Inboard and Sterndrive Engine Mounts: Signs of Failure and How to Inspect Them

The rubber mounts under an inboard or sterndrive engine soak up vibration and hold the engine in line with the drive. Learn the warning signs of a failing mount, how to inspect all of them in under an hour, and why a mount replacement always ends with an alignment check.

1 h Gas inboard, Sterndrive (I/O), Marine diesel Shop: $400-2500
Hull & systemsEasy

Inflatable Boat and Dinghy Care: Cleaning, UV Protection, Leaks and Storage

Keep your inflatable or RIB tender holding air for years. Rinse and clean it the right way, protect the tubes from sun, check pressure with a gauge, find slow leaks with soapy water, service the valves, patch small holes with the correct glue for PVC or Hypalon, and store it clean and dry.

1 h 30 min All engines Shop: $75-300
Hull & systemsEasy

Livewell, Baitwell and Washdown Pumps - Clean, Troubleshoot and Winterize

Find out why a livewell or washdown pump runs but moves no water, from a closed valve or clogged pickup to an airlock, then clean the system and winterize both sides of every pump so nothing cracks over the winter.

1 h All engines Shop: $100-300
Hull & systemsEasy

Marine Head and Holding Tank Care: Odors, Clogs, Pump-Outs and Winterizing

Keep your boat's toilet and holding tank working and odor-free, clear common clogs, pump out the right way, and winterize the system. Also covers the Y-valve and the federal no-discharge rules every owner with a head needs to follow.

1 h All engines Shop: $150-600
Hull & systemsEasy

Marine Sealants Explained: 5200, 4200, 4000UV, Polysulfide, Silicone and Butyl Tape

Pick the right sealant before you bed a cleat, a through-hull, a window or a transducer. The wrong goo either leaks in a year or glues a part on so hard you damage the boat getting it off.

30 min All engines
Hull & systemsEasyDraft

Marine Vinyl Stain Removal: Ink, Sunscreen, Grease, Mildew and Pink Stain

A stain-by-stain plan for boat seat vinyl that follows your vinyl maker's own cleaning list, starts with the mildest method, and keeps you away from the products that strip the protective top coat, rot the stitching or crack the vinyl.

1 h All engines Shop: $100-400
Hull & systemsModerate

Mounting Hardware Where You Can't Reach Behind: Blind Fasteners

Learn how to mount light accessories on a boat when you can't get a hand behind the panel, using blind rivets, rivet nuts, well nuts, toggle anchors and bonded studs, when to cut an inspection port instead, and what must never be held by a blind fastener.

1 h 30 min All engines Shop: $100-400
Hull & systemsEasy

Oil or Fuel in the Bilge: Safe, Legal Cleanup

What to do when you find oil, diesel or gasoline in your bilge. Soak it up with oil-only absorbents, keep it from being pumped overboard, dispose of it properly, report any sheen on the water to the National Response Center, and find the leak so it does not happen again.

1 h All engines Shop: $100-500
Hull & systemsModerate

Outboard Hydrofoil Fins: Do They Help, and How to Install One Safely

Learn when a bolt-on hydrofoil (the fin that mounts on the anti-ventilation plate) can help a boat plane sooner or stop porpoising, what it can cost you in top speed and handling, and how to mount one without drilling into an anode, trim tab or speed pickup.

1 h Outboard, Sterndrive (I/O) Shop: $100-250
Hull & systemsModerate

Outrigger Care: Poles, Halyards, Release Clips and Bases

Keep your outriggers strong and working by rinsing them after every trip, checking poles, halyards, pulleys, release clips and through-bolted bases for wear and corrosion, storing them down and secured, and handling them safely under way and near power lines.

1 h 30 min All engines Shop: $150-600
Hull & systemsModerate

Power-Lift Kicker Brackets: Wiring, Waterproofing and Actuator Care

An electric kicker lift raises and lowers your trolling motor at the push of a button, but its actuator, relay and wiring live in the wettest spot on the boat. Learn how to check the load rating, wire and fuse it properly, keep water out of the actuator, grease and fog it the way the maker says, and what to do when it won't move.

3 h Outboard Shop: $400-1200
Hull & systemsModerate

Protecting a Docked Boat: Mooring Whips, Bumpers, Fender Boards and Chafe Gear

Set up your dock or slip so wakes, wind and tides don't grind your hull against it, using mooring whips, dock bumpers, fender boards, spring lines and chafe gear, and know what these can and can't do in a storm.

4 h All engines Shop: $250-1500
Hull & systemsAdvanced

Replacing a Built-In Boat Fuel Tank: What's Involved and Why It's Usually a Pro Job

A leaking built-in gas tank is a fire and explosion risk that has to be fixed, not patched. Learn the signs a tank needs replacing, why foamed-in aluminum tanks corrode, what a compliant replacement tank and label look like, how access, grounding, hoses, vents and foam should be handled, and how to plan and check the work.

8 h Outboard, Sterndrive (I/O), Gas inboard, Jet boat, Marine diesel Shop: $1500-6000
Hull & systemsAdvanced

Replacing a Seacock or Through-Hull Fitting

When a seacock is frozen, corroded or really a gate valve, it has to be replaced with the boat out of the water. Learn what a proper seacock is, bronze vs Marelon, why the through-hull and backing block usually get replaced too, how the job is done, and when to hand it to a yard.

6 h All engines Shop: $400-1200
Hull & systemsEasy

Shallow-Water Anchor Care: Power-Pole, Minn Kota Talon and Raptor Maintenance and Troubleshooting

Keep a shallow-water anchor deploying and holding: rinse it the way its maker recommends, inspect the spike and pivot bolts, check hydraulic fluid on pump models, keep the fuse, wiring and pump dry, update the software, know how to stow it by hand and get it ready for winter. Internal pump, circuit board and cylinder repairs go to an authorized service center.

45 min All engines Shop: $100-350
Hull & systemsModerate

Shock-Absorbing Boat Seats and Pedestals: Choosing, Installing and Adjusting

Pounding through chop hurts backs and necks, and hard wave impacts can fracture a spine, especially up front. Learn the difference between a shock-absorbing pedestal and a suspension seat base, how to mount one solidly, how to set it for the rider's weight, and the simple care that keeps it working, plus the seating and driving habits that matter just as much.

3 h All engines Shop: $800-3500
Hull & systemsEasy

Spiders, Wasps and Insects on Your Boat: Prevention and Safe Cleanup

Why boats attract spiders, mud daubers, wasps and swarming lake insects, how to clean webs and droppings without harming gelcoat or canvas, and how to keep nests out of the vents, telltales and fittings your boat needs to breathe.

1 h All engines
Hull & systemsModerate

Sterndrive Corrosion: Paint Blisters, Anodes, MerCathode and Galvanic Isolators

Learn to spot the early signs of corrosion on an aluminum sterndrive, check the anodes and the MerCathode or Volvo Penta ACP system, and understand when a galvanic isolator or a hull potential test is needed. Caught early, corrosion costs a few anodes; caught late, it can cost the whole drive.

1 h Sterndrive (I/O) Shop: $150-600
Hull & systemsModerate

Sterndrive Power Steering Hoses and Fluid Cooler: Inspection and When to Replace

Learn to spot the early signs of a failing power steering hose or fluid cooler on a MerCruiser, Volvo Penta or similar sterndrive or inboard, from rusty crimped hose ends and red fluid in the bilge to a cooler that leaks fluid overboard or lets water into the system. Inspection is an owner job; replacement is usually for a pro.

1 h Sterndrive (I/O), Gas inboard Shop: $200-900
Hull & systemsModerate

Stiff or Seized Mechanical Steering - Lubricate, Inspect and Replace the Steering Cable

Fix hard, notchy or loose cable steering on an outboard boat. Find out whether the engine, the tilt tube, the cable or the helm is the problem, clean and grease what can be serviced, and measure and install a new cable correctly when the old one is done.

3 h Outboard Shop: $300-800
Hull & systemsModerate

Stress and Spider Cracks in Fiberglass, Cosmetic or Structural?

Learn what causes spider, stress and hairline cracks in your boat's gelcoat, how to tell cosmetic crazing from a structural problem with a simple tap and flex check, and when a gelcoat repair is enough or a pro is needed.

2 h All engines Shop: $300-3000
Hull & systemsAdvanced

Stripping Old Bottom Paint: Chemical Strippers, Blasting and Sanding

Learn when old bottom paint has to come off, how chemical strippers, soda or media blasting and sanding compare, how to protect yourself and the water from toxic dust, and why a bare hull needs primer or a barrier coat before new antifouling.

24 h All engines Shop: $1500-6000
Hull & systemsModerate

Synthetic Teak Decking: Choosing, Installing and Caring for PVC Teak

PVC "teak" such as Flexiteek, PlasDECK and Permateek gives you the teak look without oiling or recaulking, but it is glued down for good and it gets hot in the sun. Learn how it compares with real teak and foam, what a pro or DIY install involves, and how to clean, repair and keep the warranty valid.

5 h All engines Shop: $1000-15000

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