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Post by slugger on Jul 10, 2017 11:16:43 GMT -5
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.
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.
Then I plan on having a heave "L" bracket from the trany bell housing mount holes to the front of the motor mount.
The oil sump is in the very bottom of the case I had to cut a hole to change the oil.
Now I need more welding...
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Post by dannoboone on Jul 10, 2017 16:47:24 GMT -5
Neat project. Love to see her when she's done!
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Post by slugger on Feb 16, 2018 14:51:27 GMT -5
Headers on the bug.
With the new little welder I'm plugging along.
I made some headers for the bug motor.
The easiest way was to use the existing pipes and ad
crisscross Pipes. They point out to the side right now but will
point to the back, I have the mufflers from the "Johnson" jammed on now and they make the bug quite quiet. I'll work with them .
I did some digging and found out I have my distributor "Plumed" wrong.
When I got the carb I used the vacuum lines that where on the old one, used them by size and they seamed to work.
But on a VW they put vacuum on both sides of the advance diagram
and I had them backwards. AND come to find out In my application , I need to uncap one and leave it to atmosphere and plug it at the carb. Then , this is odd, I have to find TDC of #1 mark the pulley where you time it from mark the Degrees to 28*.
Run the motor up to 3500 rpm and set the mark to 28* Above TDC. I also found out an old fashioned distributor with mechanical weights would be the best in my application.
I'll have to look in to that if I cant get it to 28*.
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Post by doggzoe on Feb 16, 2018 19:41:43 GMT -5
Looks like its coming along. What will propel the boat, jet pump, prop, air?
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Post by slugger on Feb 17, 2018 8:24:53 GMT -5
Looks like its coming along. What will propel the boat, jet pump, prop, air?
I have a 64" 2 blade wooden prop and a 3 blade 59" composite prop.
I'll see which one works the best   |
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Post by slugger on Feb 17, 2018 18:35:19 GMT -5
Ok !
I re plumbed the distributor as directed, and left off and plugged the second Vacuum line.
I used a * print out , worked great.
I found TDS on #1 marked it and took off the prop.
I fired it up with the timing light on it.
Ran it up to 3500 rpm and twisted the distributor till I hit
the stud that was used to hold the old manual fuel pump( I have it capped off ) and use an electric fuel pump.Not quite to the 28* mark with the vacuum line off as needed .
I was able to cut the stub off some to let the distb. turn farther.
I set it to 28* clamped it down, and put the vac line back on.
Put the prop back on and...
PERFICT!!! I now have enough HP to turn the prop up to the required 3100rpm.
That's all ,but it is right on 3900 rpm on the motor and holds . Nice.
I have a very short Video of the boat moving , on the snow.
Still lots of work to do like some way to steer , cage ext...
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Post by slugger on Feb 25, 2018 17:10:03 GMT -5
Started the cage for the prop and drive.
I'll have three "Hoops" I want to cover the drive unit too as well as the prop.
I'll have a removable screen over the motor also .
I gave 2 1/2 inches for movement and in the event I go with a bigger prop If I hop the bug up.
That gives me 3" to spare to get out of the shop I may not be able to get it under the boat port on a trailer, Dang it.
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Post by slugger on Mar 7, 2018 14:23:37 GMT -5
Ailerons
Un like most small airboats I plan on running "Dry" and on Ice a lot.
I need to be able to adjust the attitude of the boat differently then on water.
Here is my plan. "Ailerons".
I'm going to pit 3 small ones before the rudders, to lift the front or back depending what I need.
Remember "work in progress "
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Post by slugger on May 10, 2018 18:47:30 GMT -5
I got the elevator actuator hooked up and it moves them up and down, Yay . A tad slower then I planed but workable.
I used a car window motor.
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tedb
8 Pointer
Posts: 108
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Post by tedb on May 11, 2018 20:42:00 GMT -5
If you want it to move faster you could use windshield wiper motor. They move faster then window motors
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