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| 1960+ Scott 40 hp engine need help |
| Author |
Message |
    
alex brue
New member
Username: newsea23
Post Number: 1
Registered: 04-2008
| | Posted on Tuesday, April 29, 2008 - 01:05 am: | 
|
I just got a 1969 Glastron boat I belive its a 163.
It has a Scott 40 hp engine on it. Not sure what year I know the boat is 69. I am not sure of the fuel mix ratio. Any one know???? Also has a seawards king 6 hp trolling engine on it aswell. Let me know thanks |
Graham Lamb
Senior Member
Username: galamb
Post Number: 3061
Registered: 05-2007
| | Posted on Tuesday, April 29, 2008 - 03:15 am: |
|
Alex, by my listings the last 40 horse models built by Scott were 1960 models. So your motor is no younger than that. In that case it would mix at 24:1 - ditto the 6 horse.
Water cooled engines use TCW-3 rated Marine oil - air cooled engines use normal 2 cycle motor oil (such as used with lawnmowers and chainsaws)... |
alex brue
New member
Username: newsea23
Post Number: 2
Registered: 04-2008
| | Posted on Tuesday, April 29, 2008 - 12:37 pm: |
|
well thanks for the information. To be honest I am not sure if its air cooled or water. When I first saw it I assumed water.
Ive been told 50:1 But I am not sure. I just dont want to mess any thing up.
Thanks
Alex |
alex brue
New member
Username: newsea23
Post Number: 3
Registered: 04-2008
| | Posted on Tuesday, April 29, 2008 - 03:17 pm: |
|
Well I went and got the TCW3 Oil and I mixed it 32-1 I figured it wouldnt harm it just to make sure the engine ran.
Seems like a strong engine. Charged the battery and turn the key it poped then with a little more effort she fired up.
So do you think 32-1 would be alright?
Thanks |
Graham Lamb
Senior Member
Username: galamb
Post Number: 3071
Registered: 05-2007
| | Posted on Wednesday, April 30, 2008 - 03:22 am: |
|
Alex, most motors didn't start with 50:1 until after 1965 (with a few exceptions). Running at 32-1 may be ok - I would keep an eye on it though - you don't want to toast the motor at this point since it seems to still run nicely.
As I stated in my earlier post, most pre-65 motors ran at 24:1 with a few at 16:1 (earlier Tecumseh's). My Dad's 59 Gale 40 horse works fine at 24:1 and with the modern oil doesn't even smoke that much.... |
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