Help with 1957 Johnson (RD19) 35 hp Remote Conversions

[luvmyrd19]

quote lindy46:

You may want to consider looking for an electric start donor motor. It may be cheaper than buying all the individual parts.

Yes, I thought about that, but whatever I find, if it is not running (and thus a "donor" candidate), I cannot count on the parts I need being functional, can I? It would be good for mechanical purposes (such as brackets), but not sure there would be enough to warrant the trouble/expense. I bought my current parts motor for $80, and that included the pressurized tank (with the infamous rare hose fitting).

[luvmyrd19]

quote Pappy:

Post some photos of your cables. We can quickly identify what you have for you.

Pappy – Good idea…unfortunately I just left my boat/motor behind and will be away for a week. I will do that for sure when I return next Wednesday. Meanwhile I will focus on the wire harness and schematics if someone sends me what I need (I think ChrisP said he had some). I am also wanting to zero in on some of the parts. Hoping to find a part number and source of the solenoid, starter, bracket, and carburetor fittings, and the choke and start button hardware I will need as well. Thanks – it is very encouraging to have all you folks available in this forum. Hoping to hear yet from more of you!

[Anonymous]

How much does his 35HP have in common with 1960’s 40HP models?
Same bracket & starter?? That would open the possibilities for donor motors!

[mercuryspecialist]

Hi LuvmyRD19,
I did sent you a private message.

Regards,
Joe

[luvmyrd19]

One question I have not thought to ask is about what special tools I will need to work on this motor (or any outboard, really, since I am a beginner.
all I have is the basic tools. I don’t have a flywheel puller, and would appreciate recommendations on what to buy and where to buy it. Are there any other tools that I might need but likely do not have?

[Mumbles]

If you are going to be playing with flywheels, you’ll also need a strap wrench to hold it while removing or torquing it down. Did I say torque? A good quality torque wrench will also ensure the flywheel is tightened properly to its given value and not damaged.

A strap wrench can be homemade or bought pretty cheap. I like to remove the original strap and replace it with a length of old serpentine belt as it’s tough and doesn’t slip.

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Attachments:

[Steve A W]

When it comes to pulling the flywheel here’s a link to Mr.Tubs’ video;
https://www.youtube.com/watch?v=RWgE9XiIBnk

And here’s a link to a series of articles by Max Wawrzyniak about working on
older OMC motors. I learned a lot when I first started playing with motors.
I don’t agree on his stand on pressure tanks but so it is.
http://www.omc-boats.org/maxw.html

Good Luck with your motor.

Steve A W

Member of the MOB chapter.
I live in Northwest Indiana

[chris-p]

In addition to what was mentioned,

A timing fixture/buzz box combo is nice, but bare minimum you will need some feeler gauges to set the points. Always good to have some acetone around to clean them after.

A hand impact screwdriver and rubber mallet are almost mandatory for tearing down.

Something to use to soak carbs in. I use Pine Sol as the solvent in a Rubbermaid type container for soaking carbs overnight.

My air compressor broke down for a few days in the winter, and I don’t know how I lived without it!

Most omcs you can tear down with a standard screwdriver and a 7/16 wrench.

If you will be resealing gearcases, a generic style seal puller, and then a special tool for the shift rod seal is ideal.

Along with tools, products like OMC gasket sealing compound, spray on gasket, 3M 847, PB Blaster, Gasket Remover, BRP Grease, Parts Cleaner, Deep Creep, WD 40, acetone, are some items I keep within an arms reach of my work bench.

If you get into mercs, you will have to multiply this list by about 20! They require much more special tools.

[luvmyrd19]

Pappy had asked for pics of the linkage. Here they are. Looks like I am all set with this part of the conversion…Chris_P is helping me with the wiring harness and parts for the electric start. Please someone recommend a flywheel puller that will do the job – I have to pull the toothed flywheel off my donor motor and put it on my rebuilt motor. Also where to buy it. Thanks! 😛

[luvmyrd19]

Sorry gang – I asked for the flywheel/tool info before seeing your posts! Appreciate all the help!

[Author]

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