1957 Johnson 35HP RDE-19 - Can Run w/o external cables?

[Talleyman]

I have a 1957 Johnson 35HP RDE-19 which can be started electrically. It also has a pull start. Trouble is, I don't have any of the exterior cables to hook up to the starter solenoid, battery, etc.

There is a 5pin male connector but I can't find the external wiring cable/harness with the female connector that hooks to it (original part number is 376869). Any help with a source for that is appreciated.

Question: Can I start this with the pull start only but more importantly STOP it when I want to? How? Just by pulling the manual choke out?

I'm putting this on a 1957 Duratech eventually waiting to be restored (pics in a separate post - just search Duratech if you're interested).

Thanks

 

[tx1961whaler]

Re: 1957 Johnson 35HP RDE-19 - Can Run w/o external cables?

It should run without the cables. You can use the choke to kill it. The only problem is you'll wear yourself out trying to pull start it, if it's not tuned up perfectly already. You can use a set of car jumper cables to start it. Ground to the block, touch the positive to the starter side of the solenoid, where the large cable from the starter is connected.

 

[tashasdaddy]

Re: 1957 Johnson 35HP RDE-19 - Can Run w/o external cables?

you are correct. and the harness is practically non existent. you would have to wire direct, and make you own wiring. i did it on the same motor. for my Duracraft.

 

[jay_merrill]

Re: 1957 Johnson 35HP RDE-19 - Can Run w/o external cables?

The motor will run just fine without the original wiring system. You can also make your own wiring harness - just find a wiring diagram for the motor and you are all set.

Unless you are trying to do an extensive restoration, I wouldn't spend too much time trying to find an original wiring harness for the motor. While they ar eoccassionally seen on EBay, etc., most of them are in bad condition, with broken wires, rotted insulation, etc.

If you decide to install a starter solenoid, one trick is to use a Mercury solenoid. They are physically smaller than the OMC/BRP units, and will fit inside of the cowl more easily. Don't try to use an automotive solenoid - they don't do well with the corrosion factor and are grounded via the unit's base, rather than one of the terminals.

 

[tashasdaddy]

Re: 1957 Johnson 35HP RDE-19 - Can Run w/o external cables?

i mounted my solenoid on the inside of the transom, and just ran battery cables to the starter. that was the original way with the junction box on the transom.

one is an original junction box.

 

[Talleyman]

Re: 1957 Johnson 35HP RDE-19 - Can Run w/o external cables?

Thanks for the replys guys! That is all great info. I do have the "electric start" box on the transom wherein the solenoid is mounted, and I know I can get a replacement solenoid. I also have the start and choke buttons on the dash running to this box- just not the main exterior cable to the motor from the box. Looks like I'll be making a cable but it is good to know I can try to restore the engine first and see if I can test run it without having to hook all that up first.

Thanks again. Talleyman

 

[samo_ott]

Re: 1957 Johnson 35HP RDE-19 - Can Run w/o external cables?

I have the pdf parts manual for the rd-19 and the wiring diagram if you want em, send me a pm with your email.

 

[Chinewalker]

Re: 1957 Johnson 35HP RDE-19 - Can Run w/o external cables?

Although a bit pricey, Peter at www.nymarine.ca had some very nice repop harnesses made up. By the time you buy battery cable and sort out the wiring, it actually isn't too bad a deal... and is certainly a lot neater than a cobbled together wiring harness.
- Scott

 

[1946Zephyr]

Re: 1957 Johnson 35HP RDE-19 - Can Run w/o external cables?

Please note, that an outboard soleniod has a positive and a negative on the small terminals and an automotive solenoid has two hot. Internally, they are different, but the outboard soleniod will still look a lot like an old Ford solenoid.

I have wired a few of these motors too and it's quite simple. If you should get a key switch, also make sure that it is for outboard applications only. This is because an outboard key switch would have the off position, wired to ground the ignition system to kill the engine, whereas the automotive does not.

Seloc Outbpard Motor Repair Volume I will have the wiring diagrams for what you need.

 

[copy42]

Re: 1957 Johnson 35HP RDE-19 - manual

Re: 1957 Johnson 35HP RDE-19 - manual

I have the pdf parts manual for the rd-19 and the wiring diagram if you want em, send me a pm with your email.

might I be able to get a copy of these too pls?
email to techclub@callplus.net.nz

Will be greatly appreciated. -Philip

 

[rolmops]

Re: 1957 Johnson 35HP RDE-19 - Can Run w/o external cables?

I happen to have a few of those harnesses in my garage.The problem is that they are fifty three years old and I only have one ground bolt which is needed to hold the harness in place.
However,Bill Mayer of Mayers Marina in Rochester,NY has about 50 of them hanging in his shop.
His number is 585-323-1010.He does not like sending stuff in the mail,you will have to come get one.
The good news is that you can very easily remove the plug in the inside of the cowling and run wire straight from the battery and the solenoid.

 

[efsully2]

Re: 1957 Johnson 35HP RDE-19 - Can Run w/o external cables?

i also am redoing a rd19. can i recieve the parts manual and wiring diagram also?

I have the pdf parts manual for the rd-19 and the wiring diagram if you want em, send me a pm with your email.

 

[samo_ott]

Re: 1957 Johnson 35HP RDE-19 - Can Run w/o external cables?

Sure. Send me a PM with your email address and model #.