a couple of questions about evinrude ski twin 33 outboards

[mtstuckman]

hi i just picked up a boat with and older evinrude ski twin 33 electric start model number 33603d serial number e01897 i believe it is a 1966 am looking for a manual for it but can only find 1967 manuals is it basically the same motor does anyone know where to find manuals or parts for this motor it started right up but it was running hot think impeller is bad going to replace which is the best way to run on of these older outboards out of the water in a trash can or with ear muffs i was running it today with ear muffs when it ran hot where does the motor take water in from the small port on the side of the motor that looks like ear muffs can slide over or from the spout that sticks down just above the prop with the screen in it thanks matt

 

[F_R]

Re: a couple of questions about evinrude ski twin 33 outboards

hi i just picked up a boat with and older evinrude ski twin 33 electric start model number 33603d serial number e01897 i believe it is a 1966 am looking for a manual for it but can only find 1967 manuals is it basically the same motor does anyone know where to find manuals or parts for this motor it started right up but it was running hot think impeller is bad going to replace which is the best way to run on of these older outboards out of the water in a trash can or with ear muffs i was running it today with ear muffs when it ran hot where does the motor take water in from the small port on the side of the motor that looks like ear muffs can slide over or from the spout that sticks down just above the prop with the screen in it thanks matt

The water intake is the screen behind the prop. It won't work on muffs. Put it in a tank and get it deep enough (pump well submerged)
You would have to look very hard to find any difference between a 1966 and 1967.

 

[mtstuckman]

Re: a couple of questions about evinrude ski twin 33 outboards

thanks for the info what do you think the oods are i burned up the water pump impeller by trying to run it with ear muffs i'll try and run it tomorrow in a big tub

 

[1946Zephyr]

Re: a couple of questions about evinrude ski twin 33 outboards

There's a slight chance. One thing you could do, is get that lower unit submerged right and run it with the thermostat removed. With the cap off, you should see water gush out. If not, then your impeller is shot.

 

[F_R]

Re: a couple of questions about evinrude ski twin 33 outboards

There's a slight chance. One thing you could do, is get that lower unit submerged right and run it with the thermostat removed. With the cap off, you should see water gush out. If not, then your impeller is shot.

Zephyr knows this, probably not remembering we are talking about a 33, but there is no thermostat on a 33, but there should be a healthy spray of water out the exhaust relief port about half way down the backside.

 

[1946Zephyr]

Re: a couple of questions about evinrude ski twin 33 outboards

Oh ****. My bad. Yea, that's right. No t-stats on the 28's or 33's are there?

Yea, the exhaust relief port should be gushing with water, if you have a good working impeller.

 

[jay_merrill]

Re: a couple of questions about evinrude ski twin 33 outboards

Nope. None on the fifties Bigtwins and clone Johnsons either. The motors that had the t-stats were the "fat midesection," Superquiet motors.

BTW, you can run these motors on muff, if you make a set to fit. Just take the rectangular style muffs and cut about a third of them off, along the long dimension. When in use, position the muffs so that the cut edge rests on the top of the cavitation plate. You will get a lot of leakage, but that doesn't matter, as long as the pump is getting enough water to pump through the motor.



???

 

[mtstuckman]

Re: a couple of questions about evinrude ski twin 33 outboards

thanks guys for all the info this is great i had no water at all gushing out of exhaust port when i was running it with the ear muffs but clearly that was the problem i will try and run it in a tub and see what happens i ran it for about 5 mins with the ear muffs on and no water if the impeller wasn't bad before what are the odds it is bad now i was able to locate a manual for a 66 at cramies manuals .com

 

[mtstuckman]

Re: a couple of questions about evinrude ski twin 33 outboards

does anyone know anything about vintage fiberglass runabouts?