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    1979 Johnson 150 trim issues

    1979 Johnson 150 trim motor spins strong but won’t move motor up or down. Jumping straight to battery, full of fluid, and even checked the manual release valve. When I jacked the manual release valve out it did bleed air and poor milky fluid. Hydro locked? Needs primed? Stumped here.
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    Spin prop hub or engine coupler?

    My buddy has a 86 SeaRay Sundancer 270 with Alpha 1 drives X 2 and I'm trying to help him out. (I'm an outboard guy) While out we stopped for gas he pulled off and the port motor revved up. Starboard motor was fine. Worked flawlessly just the day prior no concerning issues, docked it, came...
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    1993 Evinrude Water Intruision

    I'm working on a '93 Rude 40 and I'm getting water in both cylinders. It's worse on the bottom cylinder but both holes have 145-150 lbs of compression. I'm thinking exhaust plate gasket, think I'm going in the right direction?
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    '82 175 johnson recirculation and primer lines

    Wondering what nipple as there is two in the intake bypass covers are for which system. The breakdown notes I took don't have that information by my fault. Am I correct saying the top is for the primer and the bottom is for the intake recirculation?
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    '82 150 Johnny black plugs on port bank only.

    '82 150 Johnny has some issues. Planes fine idles great starts great good compression at 95-105 over all 6, new carb kits beginning of the year after a freshen (hone, mic'ed, new rings.). Starboard bank plugs look great slight tan to coffee hue and dry, port is oily black, except for the middle...
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    79 OMC 150 on an 88 Glasstream Hydrobass 17v

    Re: 79 OMC 150 on an 88 Glasstream Hydrobass 17v Here's a photo of the set up I've moved the engine up on the jackplate and the JP is as high as it will slide. Can I actually move the plate itself up a couple holes on the hull? I get around 25 psi at wot now as well. Prop is a Turbo 1 14 1/2...
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    79 OMC 150 on an 88 Glasstream Hydrobass 17v

    Maybe wrong forum but it is prop related. I'm using a Turbo 24 pitch prop and only turning 4500 rpm with a light load, some gear very little fuel, livewell water. I don't think I'm down a cylinder and this boat is pretty light I thought it would turn the 24. 6" manual jack plate and the motor...
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    Carbon Buildup on only 1 bank?

    Kinda a frankenmotor here, but a hybrid of a 79 and 82 v6 flatback crossflow. Story. #1 cylinder broke a ring using parts that interchange on a rebuild. I noticed while breaking down the bad motor that #1,3,6 pistons and exhaust housing/cover had far more carbon buildup than the other bank...
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    1982 Johnson 150 bearings

    Hey guys I've got a 79 150 that broke a ring on #1 so it's trash however I was given an 82 150 but its locked up. I've had the heads off and see no rust but if the bearings have rust can I snag the bearings out of the blown motor to build a Franken-motor of sorts? The motor is locked up from...
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    1979 175. Can it be detuned to a 150?

    Just found out I broke a ring of my '79 150 but have available the same year 175 for a powerhead replacement. Can this 175 be detuned to run as a 150? I was hoping they used the same long block and simple carb swap helps me out. Coast Guard says its a no-no to run over 150hp on my boat...
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    '79 Johnson 150 NO GO!

    I have a '79 Johnny 150 model #150TL79C that just started to do this two days ago. Starts up great, idles great go to get on plane and does nothing but bog like fuel restriction or running on very few cylinders. I noticed this when I was coming home from a fishing trip a couple of weeks ago...
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    Broken Starter Bolt and Boss

    I have a '79 Johnson 150hp model #TL15079C and I seem to have a little problem. I went to start the motor the other day, and my starter grinded against the flywheel, no movement, noticed I broke the horizontal starter bolt. I tapped that out replaced with a larger grade 8 bolt and all was...
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    When is a Starter Armature to bad to be used?

    Got a '79 Johnson 150 model number 150TL79C that turns over extremely slow to almost not turning over at all almost like the starter has little to no torque. I've had the starter rebuilt 3 times now but I'm suspect that the brushes were the only thing that were replaced. I took the starter...
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    OMC Cleaver Prop

    Just got my Glasstream bass boat running great with its Johnson 150, I just have a couple of prop questions now to round out a great rig. I have no idea what pitch and diameter my prop is first off, I do know its an old OMC Cleaver but the only numbers I can pull off of it are 01031 and the old...
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    1979 Johnson 150 "kick"

    Just purchased an 89' Glasstream Bass Boat with a 150 Johnson, 79' model. Compression is good 120,115,115,115, 115, 120, spark is good also will jump 1/2" or better. It will idle fairly well, every 5 seconds or so though, it will kick like its missing. New plugs same thing, I have the carb...
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    Marinco 4 Prong 12/24v Trolling Motor Plug

    I just picked up an 89' Glasstream bass boat, but it does need a couple of wiring fixes. Its got a 12/24v Evinrude trolling motor but the plugs are bad. I took the panel off which has a 12v charge and 24v run switch and found 4 wires plugged into a 3 wire female connector. The male plug isn't...
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    18 hp Armature Plate

    I need the correct part number for a 1960 Johnson 18hp armature plate. My bushing has spun and the plate moves side to side quite badly. I found one on ebay with all the electronics but the plate doesn't match the part number on the plate I have now. My plate reads 580210 but the plate on...
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    New Armature Plate

    Got a '60 18 hp Johnson and found what seems to be my ongoing problem in a worn armature plate. I'm not getting any spark to the bottom cylinder after replacing all of the ignition parts, but I did notice a severe amount of play in the where the armature plate meets the crankcase. Is this...
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    Leaking Air Somewhere?

    I have a 1960 18 hp Model FD-14 and am having some issues. The motor starts fine in 2 pulls and will idle for about 20 seconds then die. If you pump the primer bulb it will stay running. If you start to open the throttle it just sounds as if its bogging down untill you pump the primer bulb...
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    Johnson 18 HP Fuel Pump

    Anyone have the part number for a '60 Johnson fuel pump? The gaskets espically the cork one are shot and leaking, only runs when primer bulb is being pumped and some fuel is visably coming out of pump. Thanks guys.
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