1965 big twin

jbjennings

jbjennings

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Re: 1965 big twin

A '65 bigtwin with no electric start and not running??? He should've jumped on the $400. He won't likely ever see that much again for it. That motor likes fuel, too....
JMO,
JBJ
 
1946Zephyr

1946Zephyr

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Re: 1965 big twin

Tell him, he has to run the motor for you, before you even consider paying that kind of money for it and you want to check the lower unit oil and the compression. If you don't want to take a chance with older motors, this is the best way to eliminate problems at the door. Non running motors, I might pay $100 max, if they look good.
 
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corzy

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Re: 1965 big twin

ya thats exactly what i tried to tell him, but once he said "wait while i ask my wife" seemed like she had an attachment to it, so oh well wasn't meant to be.
found another motor only 20 min away, check it out, doesn't seem like they know much about it, didn't even tell me the year when they replied, just that it was still for sale
what do you think?
http://sarnia.kijiji.ca/c-cars-vehi...ers-accessories-40-johnson-W0QQAdIdZ380035089
can you tell the year at least?
 
1946Zephyr

1946Zephyr

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Re: 1965 big twin

That looks to be about the same year as the big twin and no later than 1970. Nice looking old motor, but be careful. This one is an electric shift model. Anything goes wrong in an electric shift lower unit, there are a few items in there that cost around $300 each and that will get spendy. If you do get one of these big twin class motors, it's best to stay with a manual shift model. Does it come with controls? If not, then that's another reason to stay away from it.
 
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corzy

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Re: 1965 big twin

im going to stop in and look at it tonight, if there is controls ill offer 200 and take the chance...if no controls, ill be very hard pressed to offer anything
thanks...ill let you know what happens
 
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corzy

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Re: 1965 big twin

k boys, well i picked that motor up...buddy gave me an offer i couldn't refuse....but it might have been a mistake...like i said, i cant pass on a good deal haha
pics to come, cuz im for sure going to need help figuring out the electronic controls
 
1946Zephyr

1946Zephyr

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Re: 1965 big twin

Did you by chance check the oil in the lower unit? I hope so. Leaky seals can give trouble to the electronics down below. I hope it all works out for you. It looked like a decent motor though. Keep us posted.
 
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corzy

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Re: 1965 big twin

ok guys, i'd like to take some baby steps on this ol girl to start off with, havent had time to do anything as of yet...and to answer your question zeph...nope didn't check it, like i said, buddy gave me an offer i couldn't refuse, so i just grabbed it, hopefully i dont eat crow on this one.
anyways...ive got 3 quick questions,
1 - for the cover, its in 2 pieces and has crappy screws holding it together...any reason i cant fiberglass it together? all the holes for the screws are pretty much busted...
2 - is there a problem powerwashing inside the hood, ie the motor...with my motorcycles i always did it while running just in case, but dont have that option yet...
3 - there seems to be a 6" extension on the shaft, making it like 35 or so inches from where it sits on the boat to the bottom of the prop...thats super long, i dont supposed i couldn't just pop out the 6 or 12 bolts holding it on, and the shaft will just slide out, or would the whole shaft need to be replaced?
lots of rocks around my place so the less the prop is down the better...
thanks guys
 
jbjennings

jbjennings

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Re: 1965 big twin

I haven't seen the motor.....
If it has an extension, then you may need a driveshaft from a short shaft model vs. the long shaft model you now have. Maybe the long shaft is made in pieces so you can take a section out, but I doubt it. I do think the shift shaft will have an extension that can be removed. So to convert it to a short shaft you may need a used driveshaft.
ALso, if your transom if for a short shaft, it will need to be shortened anyway or it will be too deep and have a lot more drag.

As far as the hood--post some pics and I'll say what I would do about it. There's usually some good ones from time to time for sale on fleabay if you're patient.

The powerwashing thing is up to you. I like to use a toothbrush and some detergent and a water hose.
Good luck with the electroshift. If it's working good it's great, if not it's a PITA.
JBJ
 
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corzy

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Re: 1965 big twin

IMG_4158.jpgIMG_4159.jpgIMG_4160.jpg

not sure if these pics worked or not.
just a shot of the motor, the extension, and one with the hood seperated a bit to see where the screw holes are busted...
as for the length, my transom is 20" so i thought that was long shaft?
 
jbjennings

jbjennings

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Re: 1965 big twin

I'm thinking that is probably a '68 model if I had to guess. If your transom is 20", it is indeed made for a long shaft which this motor is for. Boy, that extension sure doesn't look very good. I would have thought it would have looked a lot nicer from the factory. I'd leave it alone. The anticavitation plate should be within 2" of the bottom of the boat. If so, it should be fine. If you decide to pull the lower unit and change the impeller, be extremely careful not to damage the electric shift wires. There's lots of old threads here that show how to test the lower unit to see if the solenoids and such are good. One good thing about the electric shift is that the clutch dog and gears are usually in nice shape.
I'm not sure how your cowl is latched, but there's no reason you couldn't refiberglass the cowl and drill new holes---or get a good used cowl somewhere.
Good luck,
JBJ
 
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corzy

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Re: 1965 big twin

ok, sounds good, once i get my transom completly done (mabye by tomorrow) ill get that big ol girl set up and see how far the prop sits under the boat.
just wondering if there was a reason the cowl comes in 2 pieces? any reason i cant just glue them together and forget about the crappy screws?
thanks a lot
 
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BoatBuoy

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Re: 1965 big twin

corzy said:
ill get that big ol girl set up and see how far the prop sits under the boat.
Click to expand...

FWIW, don't worry about how far the prop sits down. It's the anti-cavitation plate (actually, anti-ventilation plate would be more accurate) that you need to measure to. It's the horizontal flat plate just above the prop.
 
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corzy

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Re: 1965 big twin

oh cool, thanks KFA, ive been looking for threads on these engines and havent found any good ones yet..
 
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corzy

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Re: 1965 big twin

ok, so i cleaned out the motor a bit tonight and mounted it on the boat (just temporarily for now) looks to be a rk 25 D and i think that makes it a 63 seahorse electromatic...
i checked out the electromatic shifter and its got a different plug end then the cables on the motor itself : ( oh boy.....pics tomorrow hopefully
if i get a chance to try and start it, can i just jump the starter (or pull forever on the cable...ya right) or could i bugger up some electonics? any suggestions on how to try and get her going would be awesome....think i might try and get it running then get rid of it since ive read not a whole lot of good for these electric motors
thanks
 
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