Johnson 35 hp question

[pickupmn2005]

I have what I believe is a 1958 Johnson 35 hp motor. Model # RDEL-19-C Serial# 1801574. Is this the true year? Its says it has a fuel pump with one line however mine has 2 lines? In one parts place the impellers are different for 58 and59 in another it says they have a water pump I mean whats up with that? The engine runs fine just no speed demon if you know what I mean..Also do they make aftermarket control cables for it or do you have to find ones better than you have? I mean mine are stiff.Any help would be appreciated thanks...

 

[JB]

Re: Johnson 35 hp question

Howdy, Pickmup.<br /><br />Welcome to iboats. <br /><br />RDEL-19 is a 1957 Electric start Long (20") shaft engine. I think the "C" at the end of your model number is a production run number, but it might mean that it is a model RD-19C<br /><br />The RD-19 uses a twin hose pressurized tank system. It may be that the RD-19C of 1958-59 switched to a fuel pump and single hose.<br /><br />Someone with more exact knowledge will be along to fill in the blanks.<br /><br />Good luck.

 

[jfm1]

Re: Johnson 35 hp question

Hi Pickup Model RDL 19C is a 1958 I don't know about the full pump But someone will be along to help with that You can find cables on Ebay all the time Good luck

 

[Paul Moir]

Re: Johnson 35 hp question

Pickupmn2005, a RDEL-19C is a 1958 outboard, and has no thermostat so it has a different impeller than the '59 35hp. Specifically, your '58 has a single water tube while the '59 has a two going into the water pump.<br />Teleflex-Morse CC170XX cables will replace your old OMC ones. They're available most anywhere (Iboats has them). Have a look at this:<br />Control Cables<br />EDIT: EDITED<br />In '58 only the Super Seahorse 35hp got a suction type fuel pump stock. The regular Seahorse 35hp got a pressurized tank.

 

[pickupmn2005]

Re: Johnson 35 hp question

So I take it then mine is a regular seahorse? They seem to be pretty scarce. Don't see to many questions about them on here. Hope nothing goes wrong with it.The thing starts like a champ I mean it might turn 2 teeth on the flywheel before it starts. I have been mixing 1 pint and a half of Johnson 2 cycle to 6 gals gas.Someone told me that the newer oils are better lubricants than the old oil. Someone wrote on the tank mix 1 quart 30w to 6 gals gas. But I use 2 cycle instead of 30w. Question when I turn off the key the boat stays running? I pull the throttle back and it will die any ideas why this is? Thanks for the info you have already given me

 

[Paul Moir]

Re: Johnson 35 hp question

I don't think you're looking hard enough. <br />Although they only made 35hp engines for 3 years, we get questions about once a week, and many regular members here own one. It's unlikely for something to go wrong with it since it's such a dependable engine (it's survived almost 50 years afterall - show me another engine) as long as you take care of it. Lots of parts are still being made for it, and best of all they're pretty inexpensive. What's not made anymore can be found in any well-stocked junkyard or sometimes NOS on ebay. <br />The original fuel mix was 24:1 (1 quart to 6 gallons) but some of our members have chose to run less than that. I wouldn't because your engine still has a babbitt bearing on the connecting rod's small end, which needs lots of oil. But it's up to you really. Check out the oil mix faq in the engine faq forum.<br /><br />I'm pretty certain your outboard should have an electric stop. Look for two small black wires running from the engine. They're supposed to connect together to stop it.<br /><br /> '58 Super Seahorse<br /> '58 regular Seahorse<br /><br />A little more info about the lineage - in the early '50s OMC built thier largest outboard, a 37.5 CID 25hp. In 1956 they tweaked the design a bit and made it the 30hp. In '57 they increased the displacement (larger pistons), reworked the head and exhaust ports, etc, and introduced the 40.5 CID 35hp. In 1960 they increased the displacement yet more to 43.9 CID and naturally designed another head, etc for the 40hp. These were all extremely popular engines that shared the same basic design up into the 70s, with occasional revivals of old designs as economy models (30hp got reintroduced as the '62-'64 28hp, and the '57 - 58 35hp as the '65-'70 33hp)

 

[JB]

Re: Johnson 35 hp question

You should be using 1 qt. of TC-W3 outboard oil per 6 gallons of gas, Pickup. That is 24:1 as called for by OMC.<br /><br />Outboard oil does not change the requirements of the engine design. Modern outboard oil differs from the old 30W in its chemistry, not in lubricity.<br /><br />Oh, Jeez! Now I've done it. Stand by for a bazillion posts about the differences in oil.

 

[pickupmn2005]

Re: Johnson 35 hp question

Thanks for all the great info. I will start using a quart of 2 cycle to 6 gal. I use Johnson oil a buddy said not to use Wal-Mart brand that it fouls the plugs real bad. Would you happen to know what plugs that motor use? The guy I bought it off of said it sat for about 2 years, However I checked everything out before I started it and used it all last summer to fish with.But could probably use a tune up I idled around alot.Glad to know there are some of these motors out there in case I may need parts in the future...Thanks again for the info...Pickupmn

 

[Paul Moir]

Re: Johnson 35 hp question

Just use whatever brand TC-W3 turns your crank. These engines used to run straight 30 weight through them so *anything* is an improvement. That reminds me, have a look at the decarb FAQ in the Engine FAQ Forum. You'll want to do this fairly regularly or the engine will coke up and the rings will stick in their grooves. Not such a big deal since there's 3 compression rings, but they run better when they all are sealing. <br />Your engine uses Champion J4C gapped at .030". The original J4Js are no longer made, but the J4C is pretty well identical. J6C is an option if you troll a lot - it'll help with fouling plugs. Don't go to the J8C or you'll burn up the engine in no time.<br />I would get on replacing the water pump impeller before you go out, but I guess you already know that.

 

[fireman57]

Re: Johnson 35 hp question

JB, I hear LubeDude coming down the hall now. Just kidding Lube.

 

[rwise]

Re: Johnson 35 hp question

pickup<br />like they said good engines, I have one also and use it all the time. never had a problem, did replace the impeller last year.<br /><br />welcome to i-boats

 

[pickupmn2005]

Re: Johnson 35 hp question

Thanks rwise. Its says your from Tulsa nice place worked there for 15 years. I live about 40 mile north of ya. Your profile says where the stumps are must either be Talala creek or Skiatook..Did you replace it yourself or have it done? I guess if I run into problems replacing mine you wont be to far away of info....Pickupmn

 

[rwise]

Re: Johnson 35 hp question

I do all my own work, that way I know (if) its done right, and what was replaced. Not to big a job to change the impeller. I fish not to far from you if you are due north of tulsa, not far from barnsdal(sp). A little lake but clean water! Though I do go to Skiatook from time to time cause its closer, and not to dirty yet.

 

[pickupmn2005]

Re: Johnson 35 hp question

I went and looked at my motor they said to take off the plate to release the shifter. I guess its the one about half way up the engine? Cause the only other plate is the intake plate with the holes in it.Right? While I was looking at it, It still has alot of tarry looking stuff running down the engine from the motor? Last summer about all I ever did was idle around the cove(No wake zone) I had linb lines and 2 trot lines in over at Grand, I guess its just unburned gas and oil from being idled all the time..I mean it ran fine when I had to open it up to take it to the ramp to load it. Ever fish Birch? There's also a little lake on Highway 11 before you get to Barnsdall called Lake Lahoma I think thats right.See alot of people going in and out of there..pickupmn

 

[Paul Moir]

Re: Johnson 35 hp question

Yes about the unburned gas/oil and yes about the plate. Just to be certain, this is the one above the lower unit (just above where the bottom of the swivel/steering bracket attaches) on the port side of the engine held in place by two screws. Not the long sheetmetal one on the lower unit itself.

 

[pickupmn2005]

Re: Johnson 35 hp question

Yeah thats the one I thought..Thanks PaulMoir

 

[saxis]

Re: Johnson 35 hp question

Is there something I am missing here?? When I was taking this plate off of my 65 Lark, the Seloc manual says it's port side also, but facing the bow, it is actually starboard (right) side of the leg. Almost took the wrong plate off at first until I looked at the illustration more closely...

 

[Paul Moir]

Re: Johnson 35 hp question

Saxis, they're out to get you! <br />On 'Big Twins' with noise-reducing exhaust housing covers the access hatch is on the starboard side, while on 'bare' ones like pickupmn's 35, it's on the port. Mind you, these are the conventional 'Port' and 'Starboard' used in the boating world, not Seloc's somewhat bizzare interpretation of them.<br />Actually, I shouldn't complain. Seloc is right on Port&Starboard a little better than half the time. <br /><br />Here's a good comparision between the two styles here: Click here.<br />I should point out that all the electric shifts had exhaust covers, so the plate is always on their starboard side.

 

[saxis]

Re: Johnson 35 hp question

Thanks, and sorry for butting in on your topic pickupmn! This must be one of the places Seloc is not right... I'm reading from the Electric shift L/U section of my book and definitely says Port side, while the picture right beside it shows starboard...

 

[rwise]

Re: Johnson 35 hp question

pickup<br />be sure you take the bolt completly out of the shift link.<br />birch is where I fish most of the time, I just like the lake. I think the other lake you are talking about is waxhoma(sp) less than 1/4 mile off 11 to the north on a dirt road. it belongs to barnsdal(sp) and take there permit, not much more than a big pond but good fishing! Most of the people I talk to that fish there don't buy the permit, I gotta go get one and give it a try.<br />I have a manual if you need/want to look something up.