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fresh water flush kit 502cu
- Thread starter Walter
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Walter
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Thank you.
Engine is an Chevrolet 502cu inch, 8 cyl engine, the Boat is build by smoky mountain jet boats. Is a commercial jet boat. (the water pressure and water flow is not reduced, because the motor get too fast hot.
Engine is an Chevrolet 502cu inch, 8 cyl engine, the Boat is build by smoky mountain jet boats. Is a commercial jet boat. (the water pressure and water flow is not reduced, because the motor get too fast hot.
Last edited:
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Yamaha's FSH simply took the barb that they have built onto their pumps for their jet skis (which exists on the boats but isn't drilled through) and attached a hose to that. Then they have a switch that puts the engine into slightly higher RPM (while the gates are in the neutral position) and a typical looking kitchen faucet handle on the other end of the hose. The barb they attach to is what creates the "visual stream of water" off the back of a jet ski. Like in the photo below:
You can clearly see the hole where the hose attached to the pump in this photo:
I suppose any pump could be drilled to add such an option, but you'd want to be careful about where you do it....you don't want to do it IN the impeller area, but aft of it, and if your pump has too much pressure, it might have too much force for the hose.
Another option might be to tap into the exit line from the cooling system....depending on how hot that water typically is....
You can clearly see the hole where the hose attached to the pump in this photo:
I suppose any pump could be drilled to add such an option, but you'd want to be careful about where you do it....you don't want to do it IN the impeller area, but aft of it, and if your pump has too much pressure, it might have too much force for the hose.
Another option might be to tap into the exit line from the cooling system....depending on how hot that water typically is....
- Messages
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- Location
- Naples Florida
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- Year
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@Julian I think he is wanting to install a fresh water flush for the motor.
I'm not super familiar with the Chevy engine but in other inboard boats you'll see a one way valve installed into the raw water line before the impeller. This valve keeps the water headed into the motor and not flowing back out the pick up scoop. At the one way valve is where you'll attach the garden hose to supply fresh water while running.
I'm not super familiar with the Chevy engine but in other inboard boats you'll see a one way valve installed into the raw water line before the impeller. This valve keeps the water headed into the motor and not flowing back out the pick up scoop. At the one way valve is where you'll attach the garden hose to supply fresh water while running.
- Messages
- 7,077
- Reaction score
- 6,010
- Points
- 527
- Location
- Naples Florida
- Boat Make
- Yamaha
- Year
- 2005
- Boat Model
- SX
- Boat Length
- 23