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30.05.2021 15:28:48
Re: Johnson 70 1977 were does the water come out of when running. here
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Re: Johnson 70 1977 were does the water come out of when running. here
Re: Johnson 70 1977 were does the water come out of when running.
The bulk of the water usually leaves under water
Re: Johnson 70 1977 were does the water come out of when running. more
Re: Johnson 70 1977 were does the water come out of when running.
Squeeze a thin bead of gasket sealing compound onto the mating surfaces of the lower unit and the impeller plate. Slide the impeller plate down the driveshaft, onto the lower unit. 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.
Apply gasket sealing compound to the impeller housing O-ring, the water tube grommet and the outer rim of the metal casing of the new driveshaft seal. Install the seal atop the water pump housing with the lips of the seal facing toward the impeller. Lightly coat the inner surface of the water tube grommet with white marine grease, and fit the O-ring onto the large bore atop the water pump housing and the grommet to the water tube. here
Lower unit gear lubricant more
Apply gasket sealing compound to the rim of the impeller insert, then install it in the water pump housing with the small bleed hole toward the water tube. Lightly coat the impeller insert with lower unit gear lubricant and set the impeller on the insert while you rotate the impeller clockwise.
A neglected water pump means your 35 hp Evinrude won't perform as well as one that receives a bit of TLC -- tender loving care. Each time you use your motor, inspect the water intake grate and remove any aquatic flora and fauna that may block it. During the boating season, check your water pump's condition after the first 20 hours of operation and then again at 100 hours, cleaning, adjusting and lubricating the pump as needed. Replace the water pump, if necessary, at the end of the season during your regular "winterization" process. more
Remove the four bolts from the water pump cover with a thin-walled, 5/8-inch socket and slide the cover off the driveshaft. Pull the impeller drive pin from the driveshaft and slide the impeller plate off the driveshaft. Remove any remaining gasket material or sealant from the plate and the lower unit. Remove the water tube grommet from atop the pump housing. [links]
Clean the upper and lowering impeller case mating surfaces with a gasket scraper. Install the new gasket on the upper casing. Slip the upper casing down over the drive shaft and align it with the mounting holes. Screw the mounting bolts into the top case and tighten them with a socket. Have your assistant help you transport the lower unit back to the boat. [links]
The Evinrude marine outboard motor uses a water pump in the lower unit case to circulate water through the engine passages and manifold. The water pump keeps the motor within normal operating temperatures. The procedure for replacing the rubber impeller inside the water pump is basically the same for long- and short-shaft motors. You should have a boat owner's repair manual nearby, since some models differ in configuration and design. Impeller kits can be obtained from any marine supply store, complete with gaskets and new mounting hardware.
Place the lower unit upright and propped by wood blocks so that the lower unit aligns with the upper case. While your assistant raises the engine, align the drive shaft to fit up into its spline sprocket. At the same time, guide the inlet water tube so that it will seat in its seal. Prop the engine up higher until a one-inch or greater gap remains between the upper and lower unit cases. Carefully align the shift rods and connect the coupler to them. Insert the coupler bolt and tighten it with a socket.
Stabilize your boat with wheel chocks if it remains on the trailer. Disconnect the negative battery cable on your marine battery with a socket and remove the ignition key. Locate the mounting bolts that hold the lower unit case to the upper unit. Small engines might have only two bolts, while larger engines may have four or five. Loosen and remove the bolts with the proper size socket. Have an assistant help you lower the case just an inch or so.
Locate the shifting rod that extends down into the lower case. Remove the small coupler bolt that holds the two shifting rods together and pull the coupler out. Pull the lower unit down and free of the upper case. Take the lower unit to a work bench and lay it on its side, letting any gear oil drain into a small pan. Use a socket to remove the two or three bolts on the top of the impeller casing and pull the casing up over the drive shaft. Flip the impeller casing over.
Note whether the rubber impeller blades inside the case spin left or right. Pull the impeller out, making sure not to lose the shaft key, if it has one. Clean out the inside bore of the impeller housing with carburetor cleaner and a rag. Lubricate the inside of it with petroleum jelly. Place the new impeller inside the top casing in the correct blade orientation, and insert the shaft key, if so equipped. Slide the casing down over the drive shaft and align it with the mounting holes.