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Clinton Outboard Motor


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  #1  
Old 11-07-2018, 11:29:58 PM
ken dunlop ken dunlop is offline
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Default Clinton Outboard Motor

I have a Clinton J9 outboard motor
I would like to know if you have to use outboard 2 stroke oil, or can you use the same 2 stroke oil that you use in a lawn mower?
Thanks in advance.
Cheers Ken.
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  #2  
Old 11-07-2018, 11:39:23 PM
cobbadog cobbadog is offline
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Default Re: Clinton outboard motor

I have never used any other 2 stroke oil than Valvoline in my outboards, mowers and whipper snippers. Can't see any reason that you can't use what ever 2 stroke oil you want to. Maybe only the Greenies would complain that the opil will kill the fish.
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  #3  
Old 11-08-2018, 01:32:33 AM
ken dunlop ken dunlop is offline
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Default Re: Clinton outboard motor

Quote:
Originally Posted by cobbadog View Post
I have never used any other 2 stroke oil than Valvoline in my outboards, mowers and whipper snippers. Can't see any reason that you can't use what ever 2 stroke oil you want to. Maybe only the Greenies would complain that the opil will kill the fish.
Hi
This is an aircooled outboard andI would really like to know if using outboard 2 stroke oil will clag it up,or if using ordinary 2 stroke will do some damage.
The motor is about 1965 vintage and still has very good compression.
Cheers Ken
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  #4  
Old 11-08-2018, 03:33:53 AM
Scotty 2 Scotty 2 is offline
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Default Re: Clinton outboard motor

If I remember, the reason why there is air cooled 2 stroke oil and water cooled 2 stroke oil is the air cooled stuff is designed to be used at a higher temperature. If it's air cooled then use air cooled type oil. It probably wouldn't matter too much if the engine is only run for short periods of time. I wouldn't use water cooled stuff in our whipper snipper as it runs for up to 8 hours a day when I'm into it. Same as I wouldn't use air cooled oil in our 6 cylinder Merc when we're heading 18 KMs off shore.
Do they use 2 stroke oil in those? Quite a number of older 2 strokes use SAE 30 non detergent engine oil in the mix.
Cheers Scott
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  #5  
Old 11-08-2018, 05:03:29 AM
typak typak is offline
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Default Re: Clinton outboard motor

Quote:
Originally Posted by Scotty 2 View Post
Quite a number of older 2 strokes use SAE 30
Cheers Scott
Generally the plain two stroke oils are just a clean burning SAE 30 oil, also quite suitable for two strokes with drip oilers where 30 is specified.


https://www.castrol.com/en_au/austra...garden-2t.html
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  #6  
Old 11-08-2018, 10:32:22 AM
bartlett0815 bartlett0815 is offline
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Default Re: Clinton outboard motor

Ken,
I have 2 of these, neither running. I remember my father used one to propel our boat, then he kept it as a spare when we got a larger boat. I think the other was meant as a parts donor motor. This was back in the late 60's/early 70's. I believe I have the original owner's manual somewhere at home. When I was trying to get this motor running again years ago I think the manual just said to use 30 weight non detergent oil. If I can find the manual, would you like a copy? If so I can scan it and post it here.
Good luck,
Kevin in NC

---------- Post added at 09:32:22 AM ---------- Previous post was at 09:28:54 AM ----------

Ken,
I forgot to add this, and you may already know it, but the J9 was air cooled, yet it had a water cooled exhaust to improve scavenging of the exhaust gases. When I was trying to get this thing going again, the internet was still in it's infancy and I was never able to find a replacement impeller.
Good luck,
Kevin in NC
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  #7  
Old 11-08-2018, 03:39:24 PM
Scotty 2 Scotty 2 is offline
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Default Re: Clinton outboard motor

Quote:
Originally Posted by typak View Post
Generally the plain two stroke oils are just a clean burning SAE 30 oil, also quite suitable for two strokes with drip oilers where 30 is specified.


https://www.castrol.com/en_au/austra...garden-2t.html
That product has a Jaso FB level of detergency hasn't it? Wouldn't that make it unsuitable where a non detergent oil for use is recommended. I know the Maytag chaps stress upon using non detergent oils in the mix and not to use a modern 2 stroke oil.

And besides that, it wouldn't be original would it? We all know how everything has to be 'as it left the factory' with you.

Cheers Scott

Last edited by Scotty 2; 11-08-2018 at 04:03:24 PM.
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  #8  
Old 11-08-2018, 03:43:53 PM
Andrew Mackey Andrew Mackey is offline
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Exclamation Re: Clinton outboard motor

Circa 1965 is old tech. I would not use modern lubes in it. SAE 30 NON_Detergent or TCW type 3 OIL only. TCW-3 OIL is a 2 cycle lube that is not cut with solvents, like the modern stuff. If no oiling instructions, 16:1 ratio - one cup oil to 1 US gallon of gas. Modern lubes will be too thin to lube the bearings properly. Have a good look at the crankshaft seals, they may be hardened with age, and air leaks will make the engine run too lean, if at all. Points gap .020", plug .030, probably uses a Champion J8-J spark plug. A J17-LM probably will work too. NO resister plugs! They will ruin the coil. More of a trolling motor than a speedster, but it will get you around in a small boat!
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  #9  
Old 11-08-2018, 05:40:01 PM
typak typak is offline
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Default Re: Clinton outboard motor

Quote:
Originally Posted by Scotty 2 View Post
And besides that, it wouldn't be original would it?
Nothing new about two stroke oil.
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  #10  
Old 11-08-2018, 06:28:08 PM
Scotty 2 Scotty 2 is offline
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Default Re: Clinton outboard motor

Quote:
Originally Posted by typak View Post
Nothing new about two stroke oil.
But is that old stuff in the ads the same as the modern Castrol 2 stroke oil that you recommended?
I think not.

Cheers Scott
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  #11  
Old 11-08-2018, 08:41:11 PM
Scotty 2 Scotty 2 is offline
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Default Re: Clinton outboard motor

Quote:
Originally Posted by typak View Post
Generally the plain two stroke oils are just a clean burning SAE 30 oil, also quite suitable for two strokes with drip oilers where 30 is specified.
https://www.castrol.com/en_au/austra...garden-2t.html
So you recommend this modern 2 stroke oil with detergents to be used in engines such as the Sunshine and Petter 2 strokes?
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  #12  
Old 11-09-2018, 10:34:52 AM
bartlett0815 bartlett0815 is offline
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Default Re: Clinton outboard motor

I tried to attach the entire manual but the file is too large. Here are the scans for the first half of the manual.
Kevin in NC
Attached Files
File Type: pdf Clinton1.pdf (110.8 KB, 26 views)
File Type: pdf Clinton2.pdf (269.4 KB, 26 views)
File Type: pdf Clinton3.pdf (274.5 KB, 21 views)
File Type: pdf Clinton4.pdf (266.3 KB, 18 views)
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  #13  
Old 11-09-2018, 10:36:06 AM
bartlett0815 bartlett0815 is offline
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Default Re: Clinton outboard motor

The next 4.
Attached Files
File Type: pdf Clinton5.pdf (249.7 KB, 14 views)
File Type: pdf Clinton6.pdf (225.7 KB, 15 views)
File Type: pdf Clinton7.pdf (267.8 KB, 14 views)
File Type: pdf Clinton8.pdf (229.7 KB, 15 views)
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  #14  
Old 11-09-2018, 10:39:42 AM
bartlett0815 bartlett0815 is offline
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Default Re: Clinton outboard motor

And finally the back cover. In the manual I found a letter from my father seeking repair parts for the motor in June 1963 when I was 11 months old. I don't know how old the motor was at that time but it was definitely still in use in the late 60's/early 70's.
Best regards,
Kevin in NC
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File Type: pdf Clinton9.pdf (138.0 KB, 14 views)
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Old 11-09-2018, 02:04:57 PM
Andrew Mackey Andrew Mackey is offline
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Exclamation Re: Clinton outboard motor

Second page of the owners manual posted by Bartlett0815 states and I quote "1/2 pint SAE 30 NON-Detergent oil to I gallon regular gas". That is a 16:1 mix (1 cup oil to 1 Gal gas). With todays alky adulterated gas, I would use high test. less alky, and better regulation of the amount put into the gas. My son has found up to 27% alky in regular - death to a 2 cycle engine, and destructive to neoprene parts (seals and fuel system componants)> I would not use modern lubricants. TCW-3 OIL should work OK. They didn't have alcholized regular gas back when this engine was built
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Old 11-09-2018, 03:24:40 PM
Scotty 2 Scotty 2 is offline
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Default Re: Clinton outboard motor

Your a legend Kevin. Thank you.
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  #17  
Old 11-09-2018, 04:28:03 PM
dkamp dkamp is online now
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Default Re: Clinton Outboard Motor

When I was a kid, I ran one of these on a small V-bottom boat. TC-3W is what we used in these, and I ran it for hundreds of hours with 24:1 ratio instead of 16:1.

Generally speaking, TC-3w is a 'two cycle 30 weight' spec. Most 'marine' two-cycle oils are designed to minimize oil fouling at the lower temperatures of a raw-water cooled outboard. The Clinton Air-Cooled ran higher combustion chamber temperatures than a typical outboard, and as a result, exhaust temps were pretty high, and that's one of the two primary reasons why they ran an impeller-pump in the drive- to keep the temperature of the drive leg from getting so high that it'd steam fog you every time you idled it down from high speed... but moreso, it made the engine a whole lot less noisy.

I never had a problem with TC-3W 2-stroke oil at 24:1... never stuck a ring or seized, never any damage or performance issues. After discussing it with several of my outboard mechanics, they noted that the 2-strokes were generally identified for 30wt were such because "for-purpose" 2 stroke oils didn't exist as they do today.

Given modern choices, I would probably pick STIHL Ultra, or some oher type identified for air-cooled 2-stroke oil over non-detergent 30wt.
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Old 11-09-2018, 05:20:59 PM
bartlett0815 bartlett0815 is offline
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Default Re: Clinton outboard motor

Please don't call me a legend, it might make me a bit too proud of myself. But I must admit I sort of like the title. I think the real legend would be my father. He dropped out of high school in 1945 and joined the Merchant Marine, then did stints in both the Navy and Coast Guard. He continued his career in steam with DuPont for another 30+ years. One of the most intelligent men I ever knew. He could build or fix most anything. Both of my parents grew up dirt poor on farms during the great depression so they developed the lifelong habit of never throwing anything away that might be valuable for something. So Dad never threw away the Clinton engine manual years after the motor had been retired. I still have all his old marine engineering manuals from the 1940's, automotive repair manuals from the 50's, his slide rule and most of his hand tools. Dad's been gone since 1984. He is the legend.
Best regards,
Kevin in NC
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Old 11-09-2018, 05:34:09 PM
Scotty 2 Scotty 2 is offline
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Default Re: Clinton Outboard Motor

So around we go. We're back to Cobba's post. Valvoline, which happens to be TCW3.
I like seeing smoke coming out the 2 strokes. An easy indication of oil there doing its job.

Yep. Your dad's definitely a legend Kevin but your still a legend for not throwing it all away. We all hear of this sort of stuff been thrown in the bin all the time.

Cheers Scott
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Old 11-09-2018, 08:10:30 PM
ken dunlop ken dunlop is offline
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Default Re: Clinton outboard motor

Thanks Scott
I'll stick with the normal 2 stroke mix.
Cheers Ken

---------- Post added at 07:10:30 PM ---------- Previous post was at 06:52:51 PM ----------

Hi Kevin
At this stage I have no use for the motor and intend to sell it. I have had it going a few years ago and just wanted to have it running in case someone was interested in it. Thanks for the offer of the manual, but hopefully I won't be needing it, but will keep it in mind if the situation changes.
Cheers Ken.
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