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Micks Morganish 3 Wheeler
CycleKarts 20/03/2022

Micks Morganish 3 Wheeler

Created by
Mick Howe

Notes, thoughts and images from my build

Mick Howe
April 23, 2022 amt 5:54 am

Laid the boot into the Black Dog a...

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Laid the boot into the 'Black Dog' and made a start to setting out my Morgan, got the lines onto the board ready to start cutting steel, positioned the steering rack and the seat so I could get an impression, the seat I bought isn't going to work for me - much too laid back and the steering column is about 18" too short. I can see how to do the back wheel and drive. I'm a happy chappy.
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2 Comments
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Mick Howe 23/4/22, 5:54 am
Just gotta wait until I can work out the correct length
Simon S Murray 23/4/22, 5:54 am
It'll be a cinch to extend that steering column - for example: by cutting the existing column and patching in the some pipe that has the same inside diameter as the column outside diameter, which can be bolted or welded in place. Nothing like solving problems and making something take shape to get your mind in the right place! Simon

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Mick Howe
April 23, 2022 amt 5:52 am

Timeline Photos

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Mick Howe added 4 photos to the album Timeline Photos
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Mick Howe
April 11, 2022 amt 3:14 am

Steel finally delivered, time to mak...

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Steel finally delivered, time to make some space in the garage and break out the string line.
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Geoff Moore 11/4/22, 3:14 am
Thanks Mick.
Mick Howe 11/4/22, 3:14 am
I'll post as much working sketches & photos, I've had to guess most of it but it's coming into focus slowly.
Mick Howe 11/4/22, 3:14 am
Simonism Twanging a chalked string on to a sheet of 5 ply makes a good layout line (if straight line will do) curves is a different story
Geoff Moore 11/4/22, 3:14 am
Can't wait to see how the build progresses. I'd love to build a 3 wheeler one day so I'm very interested in how you go about it.
Simon S Murray 11/4/22, 3:14 am
Thinks .... "maybe I should have used string"! :(cool)

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Mick Howe
April 3, 2022 pmt 11:29 pm

Rear wheel arrived Thursday and I dr...

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Rear wheel arrived Thursday and I dropped it of for a tyre to be fitted. The steel has been delayed by the floods, the steel man hopes it will be able to get through this week. Starting to get a visualisation of a layout, would be so much easier to stick with what everyone else does but then it wouldn't be me. The seat I bought looks like its more suited to a street luge than a cyclekart, have to look for something that will give better support. It's amazing the way almost everyone selling on fleabay uses the same photo that hides the true shape.
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Mick Howe
March 23, 2022 pmt 10:00 pm

More parts delivered yesterday - ste...

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More parts delivered yesterday - steering rack, seat & harness.
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Mick Howe
March 21, 2022 pmt 9:36 pm

Still trying to visualise the layout...

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Still trying to visualise the layout of the rear wheel, motor & trans. I can see it in the abstract but the details are still turning my head inside out.
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Mick Howe 21/3/22, 9:36 pm
The vague idea I was trying to flesh out was along the lines of a pair of gears on the swing-arm pivot one side chain from motor and the other chain to wheel hub. That would take better engineering skill than I have and be quite bulky, unsuspended axle is much more compact and simpler. I'll just have to put a bit more padding into the seat. Morgan appears to use a CV joint pivoting on the same plane as the swing-arm. Probably when I have a kart built I'll be better able to see a solution.
Mick Percy 21/3/22, 9:36 pm
Not sure how important the suspension is on a 3-wheeler and what impact it has on handling. Generally with 4 wheel cyclekart builds the rear suspension is omitted as being superfluous. Not sure how Morgan did theirs but obviously a bit different with the motor in the rear. I'm guessing they must have had some kind of trailing arm setup. Rear suspension could be as simple as mounting the entire engine + torque converter + wheel + axle on a subframe that pivots on the rear of the main chassis. Basically like a giant hinge in the chassis just forwards of the motor. Like a giant trailing arm that contains the motor too - much like a Vespa or Lambretta
Mick Howe 21/3/22, 9:36 pm
Thanks, the picture is building, rear suspension might just have to wait for version 2, between Mick and yourself I can see the simpler solution.
Simon S Murray 21/3/22, 9:36 pm
(Mainline)Mick - here's another photo, in case it helps the imagination. This is where I'm up to - working it out as I go - no plans. You can see how the base plate of the torque converter offers 12 different positions (not all of which may useable because parts of the engine could be fouled, eg, the tank). The black hatching marked on the base plate shows the strengthening ribs that I have to remove, to allow the chain to have a clear line from the output sprocket of the torque converter to my 60 tooth sprocket on the axle (plus I've taped up the bearing of the output shaft to stock crap going into it). Like Mick (I think?) I have yet to cut the keyways in my 25mm axle stock. Simon : Have fun!
Mick Percy 21/3/22, 9:36 pm
I struggled with this too. It'a s lot easier when you have the motor and torque converter and can lay it in the chassis. The Torque converter can actually be bolted on in a few different orientations too so you can have the axle forward or behind the engine. This photo might help - https://cyclekarts.com.au/pages/brooklands-bentley/photos/298-img-9144 Also worth noting that here I've flipped the torque converter so that it faces backwards instead of forwards. It will actually get installed the other way around so that the engine is behind the axle. If you flick through the album there's a couple of other photos showing how the torque converter bolts up.
Mick Howe 21/3/22, 9:36 pm
thanks, I'll keep at it
Simon S Murray 21/3/22, 9:36 pm
If it's true that there's nothing new under the sun, then you may be able to find some illustrative pictures/videos/plans on the web. Good luck!

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