4. Add two small hose clamps to one end of the Water Pick-Up hose and attach it to either the tee or threaded fitting. Tighten the hose clamps.

5. Route the hose to the water injection fitting on the SureSeal™ so that it will not be subject to kinking or pinching which could restrict the flow of water. Cut to length if needed.

6. Take the black plastic cap off the fitting on the SureSeal™ (leave tethered to fitting). Attach the hose and secure with the remaining two small hose clamps.

6A. For twin-engine applications, we recommend the use of a crossover line between port and starboard SureSealsTM to insure proper lubrication to both seals in the event that only one engine is running. Before installing a crossover line, you must inspect the vessel's raw water exhaust system. DO NOT USE A CROSSOVER LINE if the highest point in the exhaust system is above the turn of the exhaust riser. “Back flow” could occur while running on only one engine causing serious damage to the other engine/turbo. For all Crossover set-ups, a second fitting is required on each SureSeal™.

7. Route the crossover hose between the two seals keeping it low, below engine fitting. Remove caps and connect the two ends to the SureSeals™ with the clamps as before.

8. When the boat is back in the water, remove the water pick-up hose from the fitting on the SureSealTM and place the end into an empty container. Temporarily cap the injection fitting (to prevent water from back-flowing through the SureSealTM). Start the engine and run in neutral. Raise the container one foot above the water pick-up point and confirm that there is water flowing from the hose (approximately 2 PSI at engine idle). Increase engine speed and confirm that there is a constant flow of water throughout the full RPM range. Reconnect the hose and tighten clamps. Dress the hose and secure with cable ties (loosely).

8A. To test a ”Double Injection” set-up, remove the crossover hose from one SureSealTM. Cap the injection fitting as above. Start the other engine and run in neutral. Hold the end of the crossover hose above the level at which the cooling system water enters the manifold. A steady flow of water indicates there is sufficient pressure for proper function. Reconnect the hose and repeat process for the other engine. Dress the crossover hose and secure with cable ties (loosely).

1. Tee- In line between heat exchanger and riser (as close to heat exchanger as possible).
2. Tee- In line between oil cooler and heat exchanger.
3. Tee- In line between water pump and oil cooler.
4. Drain plug- Back of water pump. Be sure the drain is on the pressure side of the pump.
5. Drain plugs- In heat exchanger.
6. Drain plugs- In oil cooler (if cooler is on pressure side of pump and bore is at least .200“).

Tides Marine recommends the use of Tee Fittings installed in the engine's raw water system to provide cooling/lubricating water to its shaft seals. When positioned as described earlier, the engine's raw water flows past the branch fitting in a manner which reduces the collection of sediment and other particulate matter which could cause blockage. In situations where Tee Fittings cannot be used, certain fixed points on the engine may be used with a straight Water Injection Fitting. DO NOT USE FITTINGS SMALLER THAN 1/4” NPT. When selecting a pick-up point on the engine, gear cooler, heat exchanger, etc. it is important to note that these points will require additional maintenance over the life of the shaft seal. For instance:

• Manifold pick-up points will have to be inspected regularly to eliminate rust and scale from around fitting.
• Pick-up points at the bottom of elbows may fill with sand / debris if the vessel operates in shallow water / runs aground. These should be inspected regularly by the owner.
• Some pick-up points may be “dry” locations. It is important to check for adequate water flow before operating the vessel.
• Some pick-up points may require 90-degree fittings rather than straight ones. Each such turn (in the fitting or hose) may restrict the water flow as sediment / sand / debris may build up over time. Regular inspection is necessary to ensure proper water flow.

    Hoses should be routed from the water pick-up point to the shaft seal in a manner which eliminates/minimizes the possibility of chafing, burning or kinking. Turns made by the hose should be minimized to improve water flow. Support clips used to “dress the hose” should not be so tight as to crush the hose / restrict water flow. Tides suggests that a bit of slack be left in the hose at the shaft seal end to allow for some movement / eliminate “loading” of the shaft seal on the shaft.