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    Wiring 1978 Ranger v178 115 Johnson

    Boat finish has been restored and engine is exceptional. Console wiring has no integrety and is staring to be a real problem. There is hardly any space to work with and it is a bird's nest of wiring.When I turn my lights on the gas tank indicater goes backwardsand stops at about 6:00. That is...
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    Console wiring 78 Ranger v178

    Boat finish has been restored and engine is exceptional. Console wiring has no integrety and is staring to be a real problem. There is hardly any space to work with and it is a bird's nest of wiring.When I turn my lights on the gas tank indicater goes backwardsand stops at about 6:00. That is...
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    Tach Question

    I have a 1979 Johnson 115h/P with 115 compression spread evenly across all 4 cylinders. It's been rebuilt and sitting on a 1978 Ranger v178 that I have restored. My Tach does not work. My Crymar book shows only a grey wire going to the Tach. The Tach actually has 4 wires coming out and I pretty...
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    Almost Finished 1 last Q about Gel Coat

    I want to thank everyone who responded with info on how to restore the Gel Coat's finish on my 1978 Ranger V178. Everyone says I must have repainted the boat as there is no comparison. The finish is a medium to dark brown base with gold metal flake. I wroked my way up from 360 wet sand paper to...
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    Gel Coat Restore

    I have a 1979 Ranger V178 with a 115 Johnson. Runs like a spotted *** ape. I have 140 compression on all 4 cylinders. The boat is in good shape. I have polished, waxed and buffed and cannot get anywhere close to the orginal gold flake clear coat finish that had a orange brown looking finish that...
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    1979 115 Johnson Tilt Trim won't go up

    I have owned the boat for 3 years & take great care of it. Had compression checked this year and it is 140, 140, 140, 140. I am very fortunate, I'm having an issue with the tilt trim. It will not go up. Motor not running on up. Works fine going down. Have ran continuity test on toggle switch...
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    Blowing Circuit Breaker on Trolling Motor

    I have a Motorguide 550 Brute 41 # thrust that came with a 1979 Ranger V178. I feel like there is integrety in the wiring panel at the front of the boat. It has 4 wires coming from the back of the boat. The plug that goes to the trolling motor is 3 prong. My question is how do I wire the...
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    94 135 Merc Lower unit Bump

    My fishing partner has some kind of problem with his 94 135 Merc. When he come up tp plane the lower unit bumps abouit 2 maybe 4 times and then it stops and runs great. Same thing happens every time. In reading some of the forum posts regarding simular problems I'm thinking it may be in his...
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    Leak Down Test ??

    Has anyone heard of a leak down test or maybe it's a link down test. It has something to do with the cylinders and it is different from a compression test. It is measured by cylinder in this fashion. Example of 4 cylinder 8% 10% 11% 20% Where in the 20% reading would...
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    Does This sound Right ?? Compresion

    I took my 79 115 Johnson to the shop today. It is a convenient boat repair but I have heard some stories....? The motor had a powerhead replaced in 2001. I have ownen the motor for 1 year. Over the last 6 months about 1 out of 3 trips, I would plane up on the initial take off and then it would...
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    1979 115 Johnson 2 cylinders to get home

    Well, over the last 6 months I have had this issue when I would first plane up , the motor would go into a stall and would only bang on 2 cylinders. I would put the engine in neutral, rev it a bit and take off and not have a problem the rest of the day. I had phoned in my issue here at the...
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    Charging Question

    I have a 78 Ranger V178 with a 79 115 hp Johnson. A 12/24 motor giude trolling motor and 3 Interstate batteries. I have a 3 bank Guest charger. Question: With the 24v set up, should I disconnect the negative to positive cross pole before i change the batteries? Just looks funny charging 3...
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    94 135 Merc Lower Unit Noise Please Help

    I have read the articles on the forum but have not found an issue exactly like mine. My 135 Mercury on my Procraft has always ran good. I am having an issue with my lower unit. When I shift from neutral to forward, and give it some gas I get a pretty hard knock or thump sound , bout 3 maybe 4...
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    94 135 40 amp system - Please help

    I am loosing my mind ! I have 2 circuit boxes on the back of my motor that look exactly the same. On the out side cover of them are 2 other electricle parts that look very much like rectifiers. I can only assume that with a 40 amp system that the voltage regulators are 20 amp each. When I go...
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    Voltage Regulator 135 Merc 1994 Question

    What is the purpose of the voltage regulators on my motor. The reason I ask is I know the top one is bad. What causes VRs to go bad?
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    1994 135 HP Mercury Reisitor Question

    I have a 1994 135 hp Mercury Black Max that is on my 17' Pro Craft. On the very back side of the motor are 2 circuit board looking boxes. I traced the wiring diagram and I think one of them is the resistor or rectifier. A couple of the wires are chared. The circuit board boxes have a cover on...
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    Tach Question for 79 115 Johnson

    If it ain't one thing it is another. I don't know anything about the tach but it stops at 1500 rpm when the motor is off. It does move when I running. What do I need to do first to see if the tach is any good. It is the orginal that came with a 78 V178 Ranger. The motor is a 79. The motor runs...
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    79 115 Johnson power loss- Power Pack ?

    Me and ole Joe took my 79 115 J to East Fork and did the Sea Foam thing on the carbs. Man is that stuff good. Starts right up, idles great and runs like a spotted ape. I'm still concerned about the potential power pack issue. About 4 times out of the last 6 when I get her warmed up come out of...
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    1979 Johnson 115 Several Concerns

    I have a 79 115 Johnson that I have had for 1 year. Has ran great but I am starting to have a couple of concerns. 1.) On my last 5 or 6 trips, after warming up, coming out of the hole and on plane for about 20 secounds, the motor shuts down on power where as it sounds like it is running on...
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    Guess Pro Charge 2613

    I have a Guess Pro Charge 2613 that is probably 8 years old. I use it to charge my starting battery and the 2 trolling motor batterys. It works great. My question: I disconnect all the wires and attach the charger leads to charge the battery. When the batterys areech back when charged, I...
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