Johnson won't go forward (1968)

[pawlak]

I have a problem with a lower unit of engine. It works on idle or<br />reverse gear, but it does not go forward. It looks like it does not<br />"clatch" to forward. Steering is ok. Any ideas?<br /><br />The engine type is Johnson....<br />If you have any schemes or this engine descriptions, please send it to<br />me.<br /> pawlak@elmatech.pl

 

[petrolhead]

Re: Johnson won't go forward (1968)

This sounds like it might be another worn clutch dog.<br />When you operate the gear shift lever on the side of the engine does it go into the correct position for forward gear?

 

[paulshaffer]

Re: Johnson won't go forward (1968)

It could be the linkage is not adjusted to go all the way forward. You could try adjusting the shift linkage.

 

[pawlak]

Re: Johnson won't go forward (1968)

thx<br />We tested it on the river , so it's look like it go into correct position.<br /><br />Unfortunetly linkage is OK

 

[Dhadley]

Re: Johnson won't go forward (1968)

What 1968 Johnson is this?

 

[rickdb1boat]

Re: Johnson won't go forward (1968)

Dhadley <br /><br />Think it's his 55HP. 1968 Model. Electric shift???

 

[pawlak]

Re: Johnson won't go forward (1968)

That is TR 10R 55 HP (3 Cilinders), Electric shift<br />but we get this without any documentation anbody know where can i find it.<br />By the way, with sparks (models, parameters) shut i use ? What is proportion of fuel ? 1:32 ?

 

[pawlak]

Re: Johnson won't go forward (1968)

I've test shift. There is sound when i've change to reverse, inle, but when forward it was'n any sound. Worn clutch dog could by too, but it that normal that i've hear sound olny when i change to revers and idle ?

 

[rickdb1boat]

Re: Johnson won't go forward (1968)

If it is electric shift, you will see 2 wires(Green and blue) running into the lower unit and the remote control will be different than a Mechanical shift. You will have only one cable running to the motor from the control box for your throttle, as opposed to 2. Spark plugs are L77JC4 champions, gapped at .030. Fuel mix is 50:1, but I think we have been over this in another post. Electric shift automatically is in the forward default mode, so you may have a mechanical shift. Check out the cables and if one goes to a shift lever on the motor and the other goes to the throttle linkage, it's a Mechanical shift motor.. Then we can go from there. It could just be a matter of cable adjustment, if that's the case. Or it could be more. Let us know... Please Keep this post going, as it's hard to follow more than one post at a time..

 

[pawlak]

Re: Johnson won't go forward (1968)

It looks like electric shift. I think(from that what i read there), that problem is with clutch dog. Can i fix it by me own ? I have't do it before, and i dont chave any scheme so can have big troubles when i try fix my lower unit ?

 

[kd6nem]

Re: Johnson won't go forward (1968)

TRL10R is a hydroelectric shift. Very first model of Hydroelectric Johnson made. It should be in forward unless the appropriate solenoid opens for neutral or reverse. (Do I remember right that both have to be on for reverse?) With both wires disconnected it should be in forward. Are you using "type c" fluid in the lower unit? This is the thin stuff similar to ATF (automatic transmission fluid). Have enough fluid in it? <br />Unfortunately this is not the simplest design, but they do work very well, normally.

 

[JRuggiero]

Re: Johnson won't go forward (1968)

I think you would get grinding if something wore out in the lower. It would not just stop working one day. My bet is that your control box (with the three buttons for forward, neutral, and reverse) is at fault. Disconnect the Green and Blue wires behind the powerhead and see what direction it runs.

 

[kd6nem]

Re: Johnson won't go forward (1968)

Pawlak, the other thing I'd do is look at the lower unit's fluid after draining it out. If there is a lot of metal in it then you have a deeper problem. I hope it doesn't have metal in it like mine did.<br /><br />By the way, in case you ever need to know, (and I hope now is not one of those times!) the lower unit from a 1969 55 hp Johnson will fit, although some of the internal parts are not compatible between the two units.