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TOPIC: 1959 Mark 55A Disassembly
1959 Mark 55A Disassembly 7 years 2 months ago #134388
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Regards. I am new to Mercury's but reasonably handy with Johnyrudes...
Starting a minor disassemble a Mark 55 for cleaning. Is it easier to disconnect the choke solenoid power source and leave it attached to the top engine cover? these Mercs seem "tight" to work on... |
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1959 Mark 55A Disassembly 7 years 2 months ago #134389
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they have either a eye bolted or a knife connect under a rubber most likely. leave the solenoid and don't forget the ground wire.
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1959 Mark 55A Disassembly 7 years 2 months ago #134392
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Thanks. I assumed there might be a way to disconnect under the rubber sleeve. The ground is attached at the solenoid mount but broken free on the other end...
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1959 Mark 55A Disassembly 7 years 2 months ago #134395
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the broken end attaches to the bolt that hold the mag adjustment plate on. must be grounded to work the choke.
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1959 Mark 55A Disassembly 7 years 2 months ago #134410
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I managed to disassemble and repair the recoil and clean everything up. The lower unit drain plug is missing so it has been without gear oil for a while. I pulled the lower unit and inspected the impeller - will change it before I run it. While cleaning it the shift cams came off and hadn't marked their orientation. So... my next question is - do the shift cams need to be aligned a specific way on the shaft? The engine was in neutral.
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1959 Mark 55A Disassembly 7 years 2 months ago #134411
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Figured it out... Put the top cam in the housing with a bit of grease and the engine tipped up horizontal. Then slid on the lower unit. I was careful to line up the water tube and it slid together nicely. Shifts into forward neutral and reverse now.
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1959 Mark 55A Disassembly 7 years 2 months ago #134414
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Yes but does the reverse locks work right. that is what the shift cams do.
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1959 Mark 55A Disassembly 7 years 2 months ago #134416
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Humph. Not sure. Prop spins freely both ways in neutral, neither way in forward, and will click as turning clockwise in reverse...
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1959 Mark 55A Disassembly 7 years 2 months ago #134420
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when you tilt the motor down do the hooks go over the tilt pin? and when you put it in neutral do they stay engaged?
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1959 Mark 55A Disassembly 7 years 2 months ago #134429
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They seem engaged in forward and not in reverse. So that would not be right...
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1959 Mark 55A Disassembly 7 years 2 months ago #134430
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correct. the shaft is right but the lower cam is on the shaft wrong.
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1959 Mark 55A Disassembly 7 years 2 months ago #134431
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Okay. Can you explain how the lower cam can be correctly aligned?
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1959 Mark 55A Disassembly 7 years 2 months ago #134445
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1 914 310 7086 call me.
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1959 Mark 55A Disassembly 7 years 2 months ago #134448
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Roger. I am in the mountain time zone so it is a bit late out east. I am off work friday so will call in the morning.
Thanks |
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1959 Mark 55A Disassembly 7 years 2 months ago #134450
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10-4
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