How does a Johnson 15HP outboard water pump work?
The 15-horsepower Johnson outboard motor uses a raw water cooling system. This means that the sea, lake or river water in which you’re boating is drawn into the motor through an intake on the lower unit and pumped throughout the power head by the water pump located atop the lower unit.
How to DIY a Johnson Evinrude water pump?
Once the keeper is removed, shift the lower unit into forward and remove the nut from the upper shift rod. 5. Remove the forward nut and four bolts on the side of the lower units (two bolts on each side) 6. Separate the lower unit from the exhaust housing by pulling it straight away form the exhaust housing.
How do you replace an outboard water pump?
Remove the new driveshaft seal from the water pump kit and spread a thin coat of gasket-sealing compound on its rim. Apply a thin coat of gasket-sealing compound on both sides of the new O-ring and the outer rim of the grommet. Slip the O-ring into the large hole on the top of the water pump housing and slip the grommet into the small hole.
How do you change the impeller on a hp outboard?
Apply a thin coat of gasket-sealing compound to the matching surfaces of the new impeller plate and the lower unit. Slide the impeller plate down the driveshaft and into place. Slide the new impeller down the driveshaft, turning the driveshaft clockwise, if necessary, so that it aligns with the drive pin.
How to repair a Johnson 15HP water pump?
Johnson / Evinrude 9.9~15Hp 2 Stroke (1974~2007 models) Water Pump Rebuild – Impeller Replacement. Επισκευή αντλίας νερού εξωλέμβιας μηχανής αντικατάσταση ιμ… Johnson / Evinrude 9.9~15Hp 2 Stroke (1974~2007 models) Water Pump Rebuild – Impeller Replacement. Επισκευή αντλίας νερού εξωλέμβιας μηχανής αντικατάσταση ιμ… Skip navigation Sign in
Do you need to replace water pump on 15 hp Evinrude?
Eventually, you’ll need to replace the water pump on your 15 HP Evinrude, no matter how well it holds up and particularly if it overheats. When the time for replacement arrives, you’ll find that installing the pump is straightforward. Remove the four bolts holding the water pump cover onto the lower unit.
Can a Johnson 6HP outboard water pump fail?
A water pump failure can burn out the motor completely. Whether the outboard is just a year or 40 years old, make changing out the water pump’s impeller a priority. This guide walks you through replacing the impeller and rebuilding the water pump on a 1978 Johnson 6HP 6R78B outboard.
How do you change water pump on Mercury outboard?
Dab a spot of needle bearing grease on the impeller drive key and push the pin to the slot on the driveshaft. Slide the impeller housing down the driveshaft while turning the driveshaft clockwise to align the impeller over the drive key, and seat the impeller and housing against the impeller plate.