Your Marine Supplies Professionals Suggest Regular Fire Prevention Checks

Raritan Engineering Company your marine supplies experts would like to share with you these topics we thought would be of interest to you this month regarding how to avoid those nasty boat fires. 

Your marine supplies specialists know that although the exact cause of Tuesday morning’s roaring, three-boat fire at Santa Cruz Harbor has not yet been officially released — an unattended space heater is suspected — the stunning incident should serve as a warning to all West Coast boaters and marina operators. 

In our opinion, fire aboard a boat — whether offshore or in a safe harbor — is the ultimate boater’s nightmare, as fuels can explode, crew can become trapped, and boats (especially those built of fiberglass) typically become engulfed quickly.

Your marine parts suppliers professionals feel that an electrical investigation is pending, but regardless of the exact cause, the bottom line is that I could easily have lost my boat, along with many precious possessions, and my neighbors’ boats could have gone up in flames also.

What precautions can be taken?

• Don’t leave heaters on when you’re not aboard.
• Don’t use damaged or questionable shore-power cables.
• If you see signs of previous overloads (burn marks) on dockside receptacles, report them to your harbormaster.  
• Have plenty of extinguishers aboard and check them often.

Your marine parts and accessories analysts understand that boat fires are ridiculously rare. You’re much, much more likely to actually perish from a car accident, plane crash or even a cataclysmic storm than you are to even be injured from a boat fire. 

Your Marine Supplies Analysts Know That Most Boat Fires Are Caused By Electrical Issues

You can find more information as well as get assistance on marine parts at Raritan Engineering.

1. Careful, Sparky

Your marine parts specialists know that most boat fires are caused by electrical issues, with wire chafe at the top of the list. Builders do their parts to follow standards and provide proper circuit protection (chafe protection, fuses, breakers, ignition-protected components, etc.), and you can help by keeping an eye out for chafing and making sure electrical connections remain tight and corrosion-free. 

Tip: Your marine parts distributors experts want you to know exactly how to shut off the power (battery switch, main breaker, etc.) in the event of a fire; otherwise, the fire can easily restart after being put out with an extinguisher.

2. People Don’t Plan to Fail, They Fail to…

If your fire plan consists of “I know I have at least one extinguisher somewhere on this boat,” then you could do better. Knowing the exact locations of extinguishers (and how to use them) and how to quickly secure the engine, blowers and electrical power are good starts. 

Tip: This is for crew too. They should have a clear understanding of what to do, even if only to put on a life jacket and await further instruction.

3. Really — Has It Been That Long?

Does your boat sit for months (or even years) between outings? That could spell trouble. There were actually reports of an uptick in boat fires after the recession because, after as long as five years, people could finally afford to use their boats again.

Tip: Get the boat in shape and take it out for a shakedown cruise a few weeks before bringing friends and family aboard. 

Raritan Engineering has more information on marine supplies, marine parts, and marine head units

via Fire Aboard: Every Boaters’ Nightmare

via How to Prevent a Boat Fire



Your Marine Supplies Professionals Make Your Ice Maker Search Easy

Raritan Icerette Model 87

How Amazing Are Our Ice Makers?

Raritan’s Icemaker will withstand high humidity and extreme temperature changes when exposed on deck and still keep producing ice.

Raritan utilizes the Embrako compressor in our Icemaker as its been proven to be extremely reliable in all types of marine environments, coming with a 5 yr limited warranty. 

Easy Installation

– No drain required makes it easy to install.
– Requires a 1/4” outside diameter water line.
– Includes flange.
– 230 volt model available.

Get Your Marine Ice Maker Today!


Marine Supplies-Water Pumps

Your Marine Supplies Specialists Share the Best Replacement Schedule for Optimum Performance 

Raritan Engineering Company your marine supplies professionals would like to share with you these topics we thought would be of interest to you this month regarding the best water pump impeller servicing tips.

Your marine supplies experts know that most engine makers recommend changing impellers every two years — sooner if operated in sandy or silty water. “If your engine runs warm at idle or slow speed, and then it runs cooler at higher speed, that’s a sign that the impeller needs to be changed,” says Jeff Fay.

1. Drain the gear lube. Your boat supplies and accessories analysts know that a few shavings on the magnetic plugs are normal, but milkiness, which indicates water in the gear lube, isn’t. Remove the rear anode to access the aft-most bolt. Remove two more bolts just ahead of the anode. 

2. Remove the copper water tube and its white plastic guide, as well as the drive-shaft O-ring, doughnut-shaped “slinger,” and impeller housing. Carefully pry the impeller from the housing. Don’t lose the key. 

3. Clean all parts, then install the new gaskets, wear plate and the round, orange oil-passage seal. A dab of grease holds the key while installing the impeller, and a bit of liquid soap on the impeller lubricates it when first starting the engine. 

4. Reinstall the impeller housing, drive-shaft slinger seal and drive-shaft O-ring. Your boat covers professionals suggest that you insert the copper water-passage tube into the upper drive half and its white guide tube into the impeller housing.

“You’re doing a lot at once to get the two halves back together,” Cosselman warns. “Look through the exhaust cavity to see the water tube going into the white guide sleeve. Twist the drive shaft to align the splines as it goes into the upper gear set. 

5. Separate the upper and lower drive halves a bit to get the two forward nuts onto their studs. Reinstall the remaining front nut and three rear bolts. Reinstall the drain and vent plugs. While pressure-testing, rotate the drive shaft to test seals.

Quick Tip: The rear-most bolt hidden by the anode often corrodes, so an Allen key will no longer turn it. If so, either drill it out or slide a hacksaw blade between the upper and lower halves of the drive to cut it.

Your Marine Supplies Analysts Want You to Avoid Having Your Boat Parts Fail You When You Need Them Most

You can find more information as well as get assistance on marine parts source and on the best water pump impeller servicing tips at Raritan Engineering.

Flexible impeller pumps

Your marine parts source specialists understand that inboard and sterndrive engines usually include a raw water pump of the flexible impeller type. Your marine supply company experts say that flexible impeller pumps are common in shower drain sump pumps, some bilge pumps, wakeboard ballast pump systems, oil changing systems and lots of other applications.

When they fail

Flexible impeller pumps work best when run regularly. If your pump sits for months with the impeller in one position with the blades on one side bent, it may “take a set” and may blow a circuit breaker on startup (if it’s electrically driven). The impeller may also stick to the housing and come apart when the pump starts. 

Of course, you should check the wet exhaust on your transom for the proper flow of cooling water each time you start the engine. You should check the impeller’s condition during Spring Commissioning and every 200 hours of operation. 

Neoprene, nitrile or polyurethane

Use neoprene impellers for engine cooling, and for fresh and salt water transfer duties. Neoprene is suitable only for pumps where small amounts of oil or diesel fuel are present.

Use nitrile impellers for bilge pumping and for transfer duties where water is heavily contaminated, for example by oil or diesel. For transferring diesel fuel, use a sliding vane pump like the Jabsco Vane Puppy or Groco Flo-Master. 

Replacement in raw water pumps

Replacement is relatively simple. Close thru-hull (raw water pump applications). Remove the three to six end cover screws and take off the cover and gasket. Take the old impeller out by gripping the hub of the impeller using channel lock or needle-nosed pliers. 

Lightly lubricate the inside of the impeller housing with Vaseline to reduce the friction of the first dry startup. Use a heavy rubber band or loop of light line to collapse the impeller’s vanes, insert it, and pull the loop our with your pliers. 

Your pump may need additional service, particularly the seals, bearings, wear plates or clutch. Nigel Calder’s excellent book,Boat Owner’s Mechanical and Electrical Manual, covers detailed rebuilding. 

So don’t forget these helpful tips when servicing your water pump impellers. 1) Drain the gear lube;  2) remove all necessary parts;  3) clean all the parts;  4) reinstall the impeller housing, drive-shaft slinger seal and drive-shaft O-ring;  and 5) separate the upper and lower drive halves a bit to get the two forward nuts onto their studs.

Raritan Engineering has more information on marine supplies, marine parts source, marine heads, and on the best water pump impeller servicing tips.

via How to Service a Sterndrive Water Pump Impeller

via Impeller Replacement 101