Problems With Johnson 15Hp
And the drive shaft was rusted so solidly into the pinion gear, that by even placing the shaft in my large lathe, moving the carriage back to where it could apply pressure and someone else beating on the other side with a block with a 4# hammer, nothing would move. If you need to replace it, get a. stainless steel 1/4" X 28TPI (National Fine) 1/2" long and hacksaw a screwdriver. How to start a johnson 15 hp outboard. Pound on the lower end, trying to at least move it a tad bit.
- Johnson 15 hp outboard won't start.php
- How to start a johnson 15 hp outboard
- Johnson 15 hp outboard won't start youtube
Johnson 15 Hp Outboard Won't Start.Php
It is better to use a plastic pump lever bottle with gasoline mix in it. Since the slot in the crankshaft has a radiused bottom, you can, by carefully aligning your punch on the to edge of this broken key, drive it IN and Down, which will rotate it slightly out at the bottom. It works best if you hold the primer bulb upright, with the outlet upward when pumping it. Johnson 15 hp outboard won't start.php. This is easy to check, pull the prop off, look at the.
Here, scribe a reference line. 37) Removed Wrong Screw When Draining Lower Unit Oil: Here are two flat headed screwdriver slotted stainless plug screws on many of the MC motors, one in the front bottom of the right hand side of the lower unit (gear case) and the other above it by 6 to 7 . One had the lower rod bearing cap was rusted to the point that there was pits in it. It was traced to #2 coil not having any output to the spark plug. I installed a new impeller as you described in your article and it simply does not work. If this leakage has been there for a while and blown a hole, it will then need a new head gasket. Problems with Johnson 15hp. Pour enough in so that you are sure it may be getting to the spline. Replacement points, the felt for the cam oiler can be too long in some. In this article I may deal with many specific makes of manufacture or models, but it started around Johnson and Evinrude, which is my forte, but numerous other makes thrown in during my 60 plus years of tinkering on these jewels. AND ESPECIALLY ON THE OLDER MAGNETO IGNITION MOTORS, here you need to pull that rope starter as if you were mad at it. It will not shock you, UNLESS you happen to touch the exact area of the spark jumping. 27) Neutral Safety: (a) The OMC 9. Also you may want to double check the fuel pump cover, as it being plastic, can become cracked which will allow a gas leakage out, when you pump the bulb and air leakage will then break the vacuum of sucking the fuel in once the motor is running, at least until the carburetor runs dry. Pull the starter rope, check to see if when the flywheel is rotating that the timing plate moves sideways when the flywheel is rotating.
How To Start A Johnson 15 Hp Outboard
Starting fluid will work, but don't overdo it as this has no lubrication qualities which could damage the motor if used extensively. Let it set, when cured remove the bolts, file off any excess epoxy and reinstall. 5hp single cylinder Mercury that has 120#. Beware of fuel tanks setting out in the rainy weather. By the nature of most compression testers, they allow a compounded poundage if cranked repeatedly. They are designed to be compatible with each other, but sometimes?? Johnson 15 hp outboard won't start youtube. In the photo below, the corrosion was between the lower unit hole and the bolt body itself, not in the threaded section. Or as seen below, part of a vane broken. If the motor runs, you might let it run with the Kerosene in the gearcase in gear for a few minutes, shifting gears a few times. This motor had been worked on before, numerous times evidenced by the repairs, but everything looked good.
23) Timing Plate Loose on OMC 9. When pushed to the mid-position it acts as an enrichening valve for cold. So if you happened to get it running and shut it off, only to find that upon trying to restart it the starter rope would not budge. The (S) or start lug will have a yellow wire to the starter solenoid. It is observed that if these motors are used on a smaller boat as the only propulsion, and act as a "get there" motor and also as a trolling motor, this black residue is considerably less to almost non-existent because the motor gets hotter because of the faster RPM, where the motor has a chance to warm up, thereby "burning" some of this excess oil. This should force the #109 gear higher, meshing tighter with #52 gear because they are beveled and eliminate some of your slack. Another thing to look for that is many times overlooked, is the neoprene O-Ring (#0334913) on the inside of the fuel line connectors. Refer to repair manual for checking procedures. However in trying to unscrew it, it soon became evident that I would ruin it before it came loose. Penetrating oil was applied on the spring base, in the drilled hole then allowed to set for a few days in hopes of breaking the corrosion loose. Price of a new on is not that bad however. Put it in neutral and see if it still will not pull over.
Johnson 15 Hp Outboard Won't Start Youtube
After 3 of these, I finally wised up somewhat, and did some investigating. Illustration below is a typical. They HAVE TO BE CLEAN and close at rest. If this is the case and it does not come off, by dropping down and away from the exhaust housing? If the twist grip is not rotated to a fast (advanced) enough position, you will have to crank.
Time for a soaking in carburetor cleaner. This shifting yoke was initially installed as the first thing during the final assembly of the gearcase. I know nothing about this one except it was in a box of parts motors that I got from a outboard mechanics widow. These O-Rings can get nicked or scratched just enough to not seal completely and being under a vacuum, can leak air, therefore not allow fuel to be sucked to the carburetor. Somewhere in production before 1983 the clampscrew handles. This motor did not have the original powerhead, so the flywheel's tapered hole was not an exact mate to the crankshaft taper. Also when rebuilding a motor, you may find that one reed valve may not lay flat to the plate. Follow this guide to find the cause and solution for a Johnson outboard engine that will not start up. Any air leak from bad gaskets, broken or. Now if there is water in the fuel of the carburetor that has not been drained, the result can look like the picture below. With the shifting lever in neutral, give the twist grip handle a twist it, if there is a lot of slop here, you may not be able to maintain a throttle position setting without holding onto the handle all the time. I bought a new coil assembly and that solved the problem. If the older points type ignition, (shown on the photo below on the left) the 2 blue wires coming from the coils/points, also Y off which go to the kill button.
This vacuum is also what operates the fuel pump. Therefore if it is missing, someone else may have plugged the wrong one onto the top spark plug. Reed plate viewed from carburetor side of plate showing the reed valves thru the round intake holes|. Once it is running, there can be many other things that may be needed to be repaired or adjusted to make it function properly. Stroke, the back of the piston is drawing a fuel-air mix in through the. The motor died and since it had an electric starter, was not noticed any real differences except harder starting. If the engine is hard to start, perform the following ignition system tests to determine the cause and solution to the problem. This model uses a considerable less heavy duty push button switch, requiring the use of the solenoid. If you get to #6 and it is still dead, swap the coils from top to bottom, see if the non-firing follows the coil, if so then that coil is bad. Carburetor, where the one cylinder that runs dry, could possibly produce. Here is another bad fuel pump situation. When you get these 4 or 6 bolts (depending on the model) removed, the gear case. 156" (5/32") wide X.
If everything checks out fine, check for a "click" sound coming from the starter relay when turning the ignition switch to start position. These two mating parts are made of Nylon and rely on their natural slipperyness to allow the outer gear to slide up and mesh into the. Coil where it was sealed around the hard rubber housing, that the rubberish sealing had came loose and even had evidence of something being corroded.