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Author Topic: 4 cycle outboard Motor  (Read 2015 times)

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Offline tacklebury

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4 cycle outboard Motor
« on: May 14, 2012, 04:33:14 PM »
Well, kind of out of time tonight due to the daughters track meet.  Wanted to post something up on the boat motor my dad and I have built from an old lower unit and a 4 cycle Briggs & Stratton 6 hp engine.  I'm posting in the link to it running in a you-tube video below, but will try to add some pics and details in the next few.  ;)
 
http://www.youtube.com/watch?v=FEuQInwVFGI
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Tacklebury --}>>>>>    Multi-Barrel: .223 Superlite, 7mm-08 22", .30-40 Krag M158, .357 Maximum 16-1/4 HB, .45 Colt, .45-70 22" irons, 32" .45-70 Peeps, 12 Ga. 3-1/2 w/ Chokes, .410 Smooth slugger, .45 Cal Muzzy, .50 Cal Muzzy, .58 Cal Muzzy

also classics: M903 9-shot Target .22 Revolver, 1926 .410 Single, 1915 38 S&W Break top Revolver and 7-shot H&R Trapper .22 6" bbl.

Offline Rex in OTZ

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Re: 4 cycle outboard Motor
« Reply #1 on: May 16, 2012, 08:07:56 AM »
A lawn mower engine coupled to the lower unit :D
Your lucky the engine spun the same direction the old power head did.
 
I guess that'd work on a light skiff in a small pond or at most a mile away, cooling would be a real issue if used much.
In my area its least 45 minuets to anyplace at 23mph.
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Offline tacklebury

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Re: 4 cycle outboard Motor
« Reply #2 on: May 16, 2012, 03:49:35 PM »
Actually, it's a power washer motor and it's air cooled and designed to sit stationary at full throttle.  So far, it seems to maintain temperature really well.  It definitely isn't for large open bodies of water, but on the smaller lakes and floodings around here, I rarely go more than 1/2 a mile at the most.  We're prepping to do another build.  We have a 15hp twin and an old mercury lower.  Thinking of trying a similar modification to that one for a larger boat.  For my little 10 ft. Aluminum though, this is all I'll ever need.  8)  This lower unit was from an old Eska 2 cycle that we couldn't get running very well and we got this engine for free.  ;)
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Tacklebury --}>>>>>    Multi-Barrel: .223 Superlite, 7mm-08 22", .30-40 Krag M158, .357 Maximum 16-1/4 HB, .45 Colt, .45-70 22" irons, 32" .45-70 Peeps, 12 Ga. 3-1/2 w/ Chokes, .410 Smooth slugger, .45 Cal Muzzy, .50 Cal Muzzy, .58 Cal Muzzy

also classics: M903 9-shot Target .22 Revolver, 1926 .410 Single, 1915 38 S&W Break top Revolver and 7-shot H&R Trapper .22 6" bbl.

Offline blind ear

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Re: 4 cycle outboard Motor
« Reply #3 on: May 23, 2012, 08:09:32 AM »
See these a lot in the swamp country, anywhere there is a lot of mud, water plants or stumps. Air cooled so no mud choke of water pump. Plent of power as you can see.
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http://www.youtube.com/watch?v=hPexWxFnRn8
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http://www.youtube.com/watch?v=P8wQj1WQiGc&feature=related
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http://www.youtube.com/watch?NR=1&v=8oWG_6dPlfE&feature=fvwp
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I'll be glad to see how you accomplish your conversions. Sounds like a lot of fun to me. There are good legs with bad engnes every where you look. ear
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Offline dpe.ahoy

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Re: 4 cycle outboard Motor
« Reply #4 on: July 26, 2012, 04:07:52 AM »
Tackleberry, can't see your Youtube video, says I have to log in.  I'm interested in this conversion, please post how you attached the motor.  DP
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Offline blind ear

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Re: 4 cycle outboard Motor
« Reply #5 on: July 26, 2012, 05:50:28 AM »
+1 ear
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“It is no coincidence that the century of total war coincided with the century of central banking.” – Ron Paul, End the Fed
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everyone hears but very few see. (I can't see either, I'm not on the corporate board making rules that sound exactly the opposite of what they mean, plus loopholes) ear
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Offline tacklebury

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Re: 4 cycle outboard Motor
« Reply #6 on: July 28, 2012, 05:36:45 PM »
All Right guys, sorry about not seeing your comments and fixing it right away.  Apparently some of my YouTube Vids changed to private instead of unlisted...  I have corrected them and you should be able to see it now. 
 
@DPE - We attached the motor to the base plate using long bolts with spacers and several nuts in 3 holes forming a triangle.  If you use 4 it's much harder to center, so we just used the 3.  After we got things aligned and nuts locked down, we used the spline collar that the original lower unit had to connect it's motor shaft to the vertical shaft and bored it out so it fit on the gas motor shaft.  Then we drilled 3 holes at approximately 120 degrees each and tapped it for set screws.  Once we locked the collar onto the motor shaft, we dropped the motor back onto the vertical bolts and tightened it back down.  We did it all with hand tools and expected a bit of vibration, but it's really pretty good.  8)
 
I've finalized most of the rest of the boat, so will try to do an updated to pictures and maybe a walkaround video.  8)
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Tacklebury --}>>>>>    Multi-Barrel: .223 Superlite, 7mm-08 22", .30-40 Krag M158, .357 Maximum 16-1/4 HB, .45 Colt, .45-70 22" irons, 32" .45-70 Peeps, 12 Ga. 3-1/2 w/ Chokes, .410 Smooth slugger, .45 Cal Muzzy, .50 Cal Muzzy, .58 Cal Muzzy

also classics: M903 9-shot Target .22 Revolver, 1926 .410 Single, 1915 38 S&W Break top Revolver and 7-shot H&R Trapper .22 6" bbl.

Offline briarpatch

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Re: 4 cycle outboard Motor
« Reply #7 on: July 29, 2012, 07:45:34 AM »
Blind-ear Ive seen tractors that could not plow as good as those boats. ;D
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Offline blind ear

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Re: 4 cycle outboard Motor
« Reply #8 on: July 29, 2012, 11:24:49 AM »
Quote from: briarpatch on July 29, 2012, 07:45:34 AM
Blind-ear Ive seen tractors that could not plow as good as those boats. ;D
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I have been on tractors before when I should have been in one of those boats.
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The motor video clip was good just not enough of it and more details.
 Thanks tacklebury,  ear
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“It is no coincidence that the century of total war coincided with the century of central banking.” – Ron Paul, End the Fed
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everyone hears but very few see. (I can't see either, I'm not on the corporate board making rules that sound exactly the opposite of what they mean, plus loopholes) ear
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Offline blind ear

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Re: 4 cycle outboard Motor
« Reply #9 on: August 01, 2012, 12:42:06 AM »
http://www.youtube.com/watch?v=bXEOXh6jTtE
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At the end of this video thai guy loosens about 5 screws and puts his weed eater back together. It just needs a muffler. ear
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Oath Keepers: start local
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“It is no coincidence that the century of total war coincided with the century of central banking.” – Ron Paul, End the Fed
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An economic crash like the one of the 1920s is the only thing that will get the US off of the road to Socialism that we are on and give our children a chance at a future with freedom and possibility of economic success.
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everyone hears but very few see. (I can't see either, I'm not on the corporate board making rules that sound exactly the opposite of what they mean, plus loopholes) ear
"I have seen the enemy and I think it's us." POGO
St Judes Childrens Research Hospital

Offline Cornbelt

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Re: 4 cycle outboard Motor
« Reply #10 on: August 05, 2012, 08:46:24 AM »
 I've seen inboard Briggs engines in canoes and johnboats. Interesting what people come up with using what thay've got on hand. Gives a guy some ideas.
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