Waterbug

Mini Airboat Discussions
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oldstuckinthemud
Posts: 48
Joined: Wed Jun 15, 2016 12:03 pm
Location: well stuck in the mud

Waterbug

Postby oldstuckinthemud » Sun Apr 23, 2017 2:59 pm

I figured I would at least set the bug motor on the cat hulls. My buddy is ill and we could not get started actually mounting it.
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Hit the gas and pray
User avatar
oldstuckinthemud
Posts: 48
Joined: Wed Jun 15, 2016 12:03 pm
Location: well stuck in the mud

Re: Waterbug

Postby oldstuckinthemud » Tue Jul 11, 2017 10:51 am

Still working.
I went as far s I can on the boat port for a wail.
I did not go calling and the lawn did not need to be messed with.
Water bug time.
My buddy and I welded up some of the motor platform but did no get it welded to the boat.
I added some Pillars to disperse the weight , not welded in yet. I used a hole saw and cut the Sq tubing and drove it in , should hold better then just welded to the out side.


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A VW motor mounts only to the transaxle so no actual motor mounts. I mane one . the motor will set on it and I'll bolt it on with the 2 studs on the front of the motor under the front pulley.


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Then I plan on having a heave "L" bracket from the trany bell housing mount holes to the front of the motor mount.
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The oil sump is in the very bottom of the case I had to cut a hole to change the oil.

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Now I need more welding...
Hit the gas and pray
User avatar
oldstuckinthemud
Posts: 48
Joined: Wed Jun 15, 2016 12:03 pm
Location: well stuck in the mud

Re: Waterbug

Postby oldstuckinthemud » Mon Aug 21, 2017 1:21 pm

The VW motor is officially attached to the Hull !!!!

I have been fabricating a motor bracket and starter mount .

WOW lots of cutting and fitting But it looks just like I envisioned and

seams to work .

I have to be able to adjust the " attitude" of the motor 'drive.

I still have to make the "Adjuster" on the front.

It will consist of a one inch ,by three inch bolt and nut on a rubber pad

To move up and down and then a locking plate to hold it in place .

That's next.

THEN finally I can start the drive/hub/prop.

















Hit the gas and pray
Tony B
Site Admin
Posts: 21
Joined: Thu Mar 24, 2016 1:03 pm

Re: Waterbug

Postby Tony B » Mon Aug 28, 2017 7:23 pm

Cool! Post up some videos when you get it in the water!
User avatar
oldstuckinthemud
Posts: 48
Joined: Wed Jun 15, 2016 12:03 pm
Location: well stuck in the mud

Re: Waterbug

Postby oldstuckinthemud » Mon Sep 18, 2017 11:21 am

I will :D
Had a set back.
Did some more "Fitting" and found out the clutch will not clear the starter.
I'll have to cut off the mount and move it 1/4 inch ...
Hit the gas and pray
User avatar
oldstuckinthemud
Posts: 48
Joined: Wed Jun 15, 2016 12:03 pm
Location: well stuck in the mud

Re: Waterbug

Postby oldstuckinthemud » Thu Oct 12, 2017 12:42 pm

I did a Major test today. A+
1971 VW bug 1600cc undetermined mileage motor.

This set in a shed for maybe 30 years. I Got a new carb at amazon,

New coil, plugs wires points and condenser. I set the valves and point with a feeler gauge ,remember them ? I had it running on the ground for like 5 minutes for the first test of the clutch adaptor that I had made. It failed in moments. I redesigned and had it fabbed up again, This time with a carrier bearing and a shaft that went in to the piolet bearing in the crank. Have not ran since. I built the hull made the motor mounts and finally mounted it on the boat.

Made a mount for the carrier bearing re did the starter to fit.

About a year later. Today I needed to start it up and see if my primary clutch off the 1969 Johnson snowmobile would even work.

Dang! I put the fuel line in to a gas can and hit the starter. A dozen turns and she came to life. I have not put a timing light on it yet but it ran very smooth from, 800 rpm (Idle) after the electric choke came all the way off , to 5000 rpm ( as fast as I wanted to turn it unloaded). As stated in the information I could find on the clutch It engaged at 1700rpm and at 3100 rpm was fully moved in for the reduction change. Everything sounded smooth and solid. I ran it for a half hour or so at 2500 rpm. I still have to do some work on my temp and oil psi apparently, but the oil on the dip stick was still cool to the touch. NICE!

Next to mount the secondary clutch, and see if that part works as expected !!!




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Hit the gas and pray

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