Help me please electric shift problems

[michael4ever]

Hi guys i am a newbie here from sydney Australia i have a 100hp Johnson V4 1967 it has a electric shift box it is not going faster than 15km/hr at full throttle it seems as if the clutch is slippin or soemthing does anyone know what it can be as these electric shift are a pain as i have read in other forums i have also putnew type c oil in it which is the only oil for this box i have opened and resealed all of it any ideas please i know there is someone who knows something about them or is this forum jus 4 begginers

 

[lark2004]

Re: Help me please electric shift problems

Ok, before you condemn the gear box, check the prop, you may have 'spun' the hub. Pull the prop off, and mark the hub with a nikko pen, from the middle to the outside edge of the prop. Put it back on and give it a run, then pull it back off and see if the marks still line up. If they don't you will need to get a dealer to re-hub the prop, or try and find another prop.<br /><br />P.S. do this at the water! the prop will need to be loaded up to see if it's going to slip.<br /><br />Edit: I just saw that you have also posted this question in the electrics forum, Dont' do that. Keep it here, that way everyone can see what is being done and get you going again sooner. <br /><br />As for the level of expertise on these boards? It is the best in the world. <br />My guess with your motor, is that if you took it to an Australian Marine Mechanic, he would tell you to get rid of it and buy a new motor.<br /><br />also, Welcome aboard, I supose I should have said that first....

 

[michael4ever]

Re: Help me please electric shift problems

hi Mik here again just wanted to let you know marking the prop and takin 2 test in waters was the 1st thing i did as all the mechanics told me over the fone what you thought it was to i am getting voltage to the electric box but on the 2 wires there is voltage on both if i am in forward or reverse which isnt right because when a voltage is applied it actually powers the solenoids to work have i got to technical for this forum omg i have never owned a boat in my life and i got this one like a week and a half ago and i know 2much already lol i opened and the whole box piece by piece and sealed it off not bad 4 newbie lol helppppppppppppppppppppp

 

[alden135]

Re: Help me please electric shift problems

You might want to post your model #.

 

[OBJ]

Re: Help me please electric shift problems

I would have thought the same as Lark. But let's talk rpm. Do you have a tach and can you tell us what kind of rpms' your getting at WOT (Wide Open Throttle)? <br /><br />A spun hub is usually referred with a sudden increase in rpms' but the forward movement of the boat doesn't speed up but usually slows down. Depending on how bad the the prop hub is, this can be at various throttle settings.<br /><br />What kind of shape is the engine in? Does it run well...good spark, compression, etc.? Did the engine come already set up on the boat or did you buy the engine and put it on the boat?<br /><br />Just trying to get some history on the rig Charlie. It helps with figuring out what to do next.....

 

[Dhadley]

Re: Help me please electric shift problems

Not to butt in but lets start with the basics. Like Alden says -- post your model number. Youre kinda talking about 2 different units here. And they work quite differently.<br /><br />A 1967 100 electric shift does not have solenoids. If it has solenoids, its newer (71 or 72) and is a hydro-electric. Like I said, they are completely different and dont work anything alike.<br /><br />We gotta know what you have. Thats the only way we can "see" your motor.

 

[OBJ]

Re: Help me please electric shift problems

Don't the 100's got them gawd awful springs in them Mr. D.? That would say a lot.

 

[Dhadley]

Re: Help me please electric shift problems

Yes, the 67-68 types sure did. We've seen lots of them do what he's describing, to a point, and the spring was broke. Itd catch and stay hooked up for a while but let go pretty easy. Or the electomagnet was bad/weak. But I noticed he was talking about solenoids. Those straight electrics didnt have solenoids.<br /><br />The other thing that comes to mind is that the prop is slipping. If it is a 67, they used those small props and it didnt take much to get them to slip. Also a 67 used a shear pin but usually if they're boke, they're broke and dont hold at all.<br /><br />I dont recall ever seeing one that would slip and maintain a given (slow) speed. Either they hooked up or they didnt. Once they came unhooked, the boat would come off plane even though the motor was still revved up.<br /><br />That kinda brings us back to the prop slipping....

 

[Joe Reeves]

Re: Help me please electric shift problems

Pertaining to the electramatic (Johnson) and selectric (Evinrude) electric shift units that existed from 1962 to about 1967 or 1968, scoring would slowly take place between the forward spring and hub.<br /><br />This created a slipping problem whereas it would start out (normally) as an intermitent slipping problem, that is it would act just like a mechanical shift unit where the shifting action would slip, grab, slip, grab, slip, grab, without changing the throttle setting.<br /><br />At time went by, the above action would graduate to having the unit slip completely out of gear, resulting in quite a increase of rpm which would stay that way until the throttle was lowered to idle or close to it. At that point the unit would once again engage forward gear.<br /><br />Actually similar to a slipping propeller. Easy to check the prop hub..... remove the spark plugs to avoid problems. Insert a 2x4 between the prop and the cavitation plate to jam the prop. Put the engine into forward gear. Using a socket and lengthy breaker bar, apply a great amount of pressure to the flywheel nut.<br /><br />If the propshaft turns within the propeller, the prop hub is slipping, in which case the prop requires rehubing.<br /><br />If the prop is okay, obviously the spring and hub is faulty. I've heard of some who have reworked those two items but I have always replaced them. If those items are needed and you can't locate them, email me as I may have them in my remaining stock.<br /><br />The above is assuming that you are using the required "Premium Blend" gearlube, also know as "Type C"? This is absolutely necessary as the electric shift units will not function with the regular "HiVis" gearlube which is used in the standard shift units.

 

[michael4ever]

Re: Help me please electric shift problems

Hi guys i got the thing opened again and it has two wires (green and blue)running down one on the reverse gear and one to forward i can take pics how do i upload them anyway also i have changed the oil as it only takes type c oil reverse works not forward the problem isnt the engine there is alot of compression and revs are high its model number V4TL-13A i hope this helps i have changed the oil and put type c as the old oil was wrong and also tested the prop nuffn i am doin tests with the multimeter and forward wire and the chassis is getting a reading of 1 ohm which i think shouldnt have a reading please correct me if i am wrong also the wire has a reading of 7 ohms which i think is normal but i am not sure if the should be continuity from the wire to the chassis arent these meant to be separated i hope someone understands where i am goin with this what i am sayin is that maybee there is a charge going to forward and reverse at the same time and causing it to fail i have the solenoids out and want to check the springs for faulty there is tread where the spring attatches itself like a grooving helpppppp i hate boats and gearboxes and johnsons and electric shifttttttttttttt electric shift and electric shift and electric shift and electric shift

 

[Solittle]

Re: Help me please electric shift problems

You might get some better input if you read over what you write for punctuation. As written you have none and this makes it difficult to read.

 

[michael4ever]

Re: Help me please electric shift problems

WOOPS SORRY ABOUT THE PUNCTUATION<br /><br />IM PRETTY SURE GUYS ON HERE ARENT DUMB ITS JUS IF I AM TO WRITE THIS OUT PROPERLY IT WILL BE AN ESSAY

 

[lark2004]

Re: Help me please electric shift problems

Ok, from I can make out, you say you have 7 ohms across the reverse coil wire to ground? and 1 ohm on the forward? correct? If this is the case, you probably have either a wire with damaged insualtion going to the forward coil, or the coil itself is damaged. You will need to tack the lower unit apart and check the wiring. <br /><br />I have a 1968 model 40hp Selectric shift, it's basicly the same gearcase (yours is bigger) And the wiring on mine was stuffed. Remember that these motors are nearly 40 years old, so is the wiring, and it has to operate in very harsh conditions.<br /><br />Don't worry to much about long your posts are either, if it takes an essay to get all the info across, then write it. As for the photos, If you want to email them to me, I will post them for you. arcondie@bigpond.com<br /><br />P.s. If you hate boats so much.... ?

 

[michael4ever]

Re: Help me please electric shift problems

hi guys i like the response u americans have given me, im quiete impressed with the replys thanks lots. ok here goes its a box that works on springs, i have opened and up the box to every piece possible there wasnt any wire damage as i could see, but when you open these its nearly impossible not to damage the wires and seals, so i resealed it all back up and soldered all wiring to the original scheme and made sure it was air tight not to get water mixing with my oil type "C" the hub and shear pin are in ok condition no slipping, no cracks i have measured on a multimeter the voltage as the boat is on and one wire gives me around 50 volts in and the other gives me over 200 so i am guessing its a voltage problem just for the record i have opened and closed this box 4 times in the last two days i think i should open a boat mechanics lol.<br /> I think i have the solution im gettin 200plus volts in reverse and around 50 in forward heres the solution switch wires around so the high voltage goes to the forward hub what do you guys think let me know.<br /> How stupid i think it should do it also another thing i noticed on the multimeter was that the voltage would read voltages from around 30 volts to 50 volts at a constant throttle then it would jump over 200 is this gonna make my boat launch or do any damage to the gears i am thinkin the problem is an electrical one and not a mechanical.<br /> Is there a voltage rectifier or regulator on these that could cause this problem helppppppp sum1 hey guys my email if u want it michaels_@hotmail.com

 

[lark2004]

Re: Help me please electric shift problems

yes, there is a voltage regulator, I am somewhat concerned as to why you are getting voltages that high. The Seletric/Electramatic shift units are meant to work on 12v. <br />I would be very suspect of the regulator.