Author Topic: Hoglet Motorcycle  (Read 13482 times)

Offline KB

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Hoglet Motorcycle
« on: July 27, 2012, 04:18:35 AM »

Here are a few pictures and video's from my build of Randall Cox's "Hoglet" engine, published in model engine builder #10+11.

This was started over 4 years ago. I am so close to calling it done but just can't find the time right now.

   



 

<a href="http://www.youtube.com/watch?v=PbKiqeWPG_A" target="_blank">http://www.youtube.com/watch?v=PbKiqeWPG_A</a>

 

 

<a href="http://www.youtube.com/watch?v=rP4GZWUEJ3E" target="_blank">http://www.youtube.com/watch?v=rP4GZWUEJ3E</a>

 

 

<a href="http://www.youtube.com/watch?v=9AV71gjKZ8Q" target="_blank">http://www.youtube.com/watch?v=9AV71gjKZ8Q</a>



<a href="http://www.youtube.com/watch?v=v9crRmlDcK8" target="_blank">http://www.youtube.com/watch?v=v9crRmlDcK8</a>

 

 

 

 

 






<a href="http://www.youtube.com/watch?v=KozocrCKecQ" target="_blank">http://www.youtube.com/watch?v=KozocrCKecQ</a>


Just a few more things left.....




Offline gmac

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Re: Hoglet Motorcycle
« Reply #1 on: July 27, 2012, 05:28:37 AM »
Kevin;
You just wanted to repost your Lotto 649 dance - you devil  :Lol: Glad to see you here!
Cheers
Garry

chuck foster

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Re: Hoglet Motorcycle
« Reply #2 on: July 27, 2012, 12:40:21 PM »
thanks kevin that is one cool looking project.

i can see by the pictures that you well versed in several aspects for metal working.

chuck

Offline KB

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Re: Hoglet Motorcycle
« Reply #3 on: July 27, 2012, 03:37:07 PM »

Ha ha Garry, you got me, I just can't let this one die...

Thanks Chuck!

Offline Dean W

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Re: Hoglet Motorcycle
« Reply #4 on: July 27, 2012, 09:48:45 PM »
I remember this one, and it's just as good this time around.  I know it's just the highlights, but what a beauty!
Thanks for the pics, KB.
Dean
In beautiful N. Idaho, U.S.A.

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Offline cfellows

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Re: Hoglet Motorcycle
« Reply #5 on: July 29, 2012, 04:15:38 PM »
Beautiful work, Kevin, I really like those aluminum cylinders!  It looked like the cylinder liner install was pretty tight toward the end... were you getting a little nervous about whether it was going to go all the way without breaking something???  :Lol:

Chuck
So many projects, so little time...

Offline KB

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Re: Hoglet Motorcycle
« Reply #6 on: July 30, 2012, 01:39:26 PM »

Thanks Dean and Chuck.

Chuck, ya I was sweating towards the end there, if I had stopped or it locked up there was no way it was going to budge.

If I hadn't used the thrust bearing and relieved the sleeve OD it wouldn't have gone in. It was only a thou and a half but over that length...

In my aircraft days, I would have used liquid nitrogen and it would have dropped right in.

Hopefully the next picture you guys will see of this thing will be the video of the throttle twisting and the wheel spinning. I hope...

Offline cfellows

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Re: Hoglet Motorcycle
« Reply #7 on: July 30, 2012, 03:08:58 PM »
I can relate.  Interference fits are always a crap shoot for me.  I have a 20 ton press that I usually use and I've destroyed more than one part trying to get the last 1/4" to squeeze in! 

So, I do have question.  If you are using Loctite, don't you need a little clearance so all the loctite doesn't squeegee out?

Chuck
So many projects, so little time...

Offline KB

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Re: Hoglet Motorcycle
« Reply #8 on: July 30, 2012, 04:26:02 PM »

Using Loc-tite was probably over kill, but I turned relief grooves which were smaller than the cylinder to provide the clearance for the loc-tite and to reduce the effort to press them in.
They do have different formulations though, press fit, clearance, and large gap.

The liners were honed after installation to remove any distortion from the interference of the varying diameters.

KB

Offline dsquire

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Re: Hoglet Motorcycle
« Reply #9 on: July 31, 2012, 02:38:58 PM »
Kevin

Beautiful work you have done on this project. Turning, milling, welding and metal bashing, you have done them all. Looks like the young fellow can't wait to take it for a spin.

Cheers  :cheers:

Don
Good, better, best.
Never let it rest,
'til your good is better,
and your better best

Offline KB

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Re: Hoglet Motorcycle
« Reply #10 on: July 31, 2012, 04:25:55 PM »

Cheers Don,

Got some upholstery work in there too!

At the pace I am going he will be too big when it is "done". Maybe in time for the next one...

Online steamer

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Re: Hoglet Motorcycle
« Reply #11 on: August 09, 2012, 09:55:42 AM »
Awesome as usual Kevin!
Those cylinder liners are NEVER EVER going to come out.....EVER  .......did I mention NEVER....... :ROFL:
 
Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Online steamer

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Re: Hoglet Motorcycle
« Reply #12 on: August 09, 2012, 09:57:18 AM »
Hey Kevin...

Tell us about that rear wheel clutch....?  Praytell?

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline vcutajar

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Re: Hoglet Motorcycle
« Reply #13 on: August 09, 2012, 11:16:01 AM »
Great photos Kevin.  :whoohoo:

The Hoglet is at the top of the list for my next engine when I manage to finish the current one.

Vince

Offline KB

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Re: Hoglet Motorcycle
« Reply #14 on: August 09, 2012, 08:34:56 PM »

Thanks Dave, Vince.

Ya Dave, I thought I was going to split the cylinder wall at one point...

The clutch design is something i threw together. I don't know how well it is going to work. The shoes are drive by a hexagon and as the centrifugal forces drive them apart the hex shape has a bit of wedging action which may not be what we want. The first spring I tried engaged the clutch at 1400 RPM in the lathe. I put it in the rear wheel because there was no room any where else. It won't have the torque of an engine mounted, higher revving clutch, but all I want to see is the rear wheel spinning, and stop at idle.













 :cheers: