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1991 Johnson 225 Ocean Runner ISSES!!!

J

jpburks

New member
Ok, so I have a 1991 Johnson 225 Ocean Runner (E225PXEIC) on a 22' CC bay boat. This thing use to run great! I had about 5500 RPM and 45 knots out of this thing regularly on bays and lakes (calm water, of course). I then has a foot failure, a year of back and forth fiddling with rebuilt feet and adjusting the engine shift control system. Turns out I had a broken clamp that connects ****ing assymbly to shift rod, which wouldn't let me shift. :mad: I guess the good news is that I now have two extra lower units. :p Anyway, during that time, something happened to my engine. Now, as the picture shows, I am getting grease or oil sludge coming up out of the lower unit around where the shift rod tube comes out of it. Also, I am burning about 20 gal of feul in less than 45 minutes and am only getting 4200-4300 RPM at full throttle and only 32 knots. Then, when they motor gets turned back on, it sputters slightly (maybe too much feul??). Anyway, I am ready to sink the whole damn boat and make a new fishing spot. Any suggestions as to what might be causing this horrific problem?


Quick info: I have recently replaced all spark plugs with proper gap check and all spark plug wires with performance marine wires. The foot is now beautiful and shifts like a dream.


greasy.jpg
Greasy 2.jpg
 
Put a timing light on each plug wire ( solid core wire I hope ) and wind the motor up out on the water . Observe the flashing light.----------------Look into each carburetor bore ( at full throttle out on the water ) with a STRONG flashlight an observe the amount of fuel coming up each main jet.
 
So, what exactly should I be looking for with a timing light? I am assuming you wantme to see is each plug is sparking. I have witnessed that every terminal is pusshing power to each plug, just incase this matters. Also, I am not sure the amount of fuel that is supposed to go into each jet, so I don't know how this might help me :-/ Lastly, what do these tie into? How are they related to the crappy gas consumption and the sludge building up on the lower cowling? Thank you :)
 
Doea anyone know if there is any way that the gear oil would come up through the shift tube? I also wonder if gas leaking into the shift tube from the primer pump area could be getting into the shift tube and causing the greasy buildup. Any ideas?? :confused:
 
Unless you have a severe fuel leakage, flooding down where the shift-shaft goes up (inside the swivel bracket) washing out all the grease you have put in over the years?
Might explain both fuel consumption and messy swivel?
Have you checked that your primer solenoid is not leaking???
 
The primer assembly is definitely leaking. It spews a good bit of feul, but only when the choke is engaged. So, if the ignition switch is stuck in choke, this could explain:
- The horrible consumption of fuel
- The nastiness coming from the swivel area
- (maybe) The lack of ability of the engine to reach performance expectations (???)

This is exciting! I will go home and check the motor to see if primer leaks after choke on ignition switch is released. :)
 
Ok, so the primer is leaking, but only out around the pressure port assembly. This was not the problem, however, since the leakage was minute and the ignition was not stuck in choke. I noticed that the primer bulb would lose pressure after priming, so i decided to take the airbox off and too at the carb while priming. With the airbox off, I squeezed the primer bulb and was immediately sprayed by a stream of fuel (luckily my shirt and not my face). Turns out that the fuel hose delivering fuel to the t-fitting that serviced the 3 and 4 carbs was loosened up on the fitting and was allowing fuel pressure to dump half the fuel in my tank directly into the ocean (sorry Mother Earth). With a simple snip of tubing and a new zip-tie, the problem is solved. She has her perofrmance back, is not dumping fuel, and runs much smoother. :) Thanks for all the help guys!!!
 
From your description of the fuel delivery to the carbs, it sounds as if someone has changed the original factory plastic manifold to a "tees and hoses" setup. You might want to look at getting the right manifold for fuel delivery in the future.
 
No...not #1...in fact not even AT ALL. I was incorrect. The part I was referring to is item number 50 in your drawing. It is totally different from the 1996 version...which was what I had pictured. Disregard the post I made.
 
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