Poll

Whose engine in this first ever Mod-Up deserves the coveted Brass Machine trophy!?

ShipTo
5 (25%)
RussellT
15 (75%)

Total Members Voted: 19

Voting closed: February 17, 2015, 10:51:43 AM

Author Topic: Pipe and Bolt Engine Mod-Up  (Read 89768 times)

Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #150 on: January 28, 2015, 09:11:58 PM »
The head underneath, before drilling and cleaning up:

« Last Edit: July 11, 2017, 05:12:21 PM by vtsteam »
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Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #151 on: January 28, 2015, 09:20:57 PM »
I drilled back through the lower holes as guides, and through the upper piece with the tap drill.

When all fastening holes were drilled, I flipped the piece right side up and drilled back down the tap size holes with the clearance size drill.

This sequence allowed me to maintain the head in perfect alignment with the pre-drilled tap drill holes in the cylinder, as well as the valve and bore holes.

« Last Edit: July 11, 2017, 05:12:50 PM by vtsteam »
I love it when a Plan B comes together!
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Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #152 on: January 28, 2015, 09:28:20 PM »
A test fit of the head -- I had placed the head on top of the cylinder while tapping, to use the clearance holes as guides to keep the tap square. It all went easily:

« Last Edit: July 11, 2017, 05:13:12 PM by vtsteam »
I love it when a Plan B comes together!
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Offline RussellT

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Re: Pipe and Bolt Engine Mod-Up
« Reply #153 on: January 29, 2015, 04:50:51 PM »
It's coming on well!  :thumbup: :thumbup:

Russell
Common sense is unfortunately not as common as its name suggests.

Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #154 on: January 29, 2015, 05:56:29 PM »
Thanks Russell!  :beer:

Today I chucked a 3/8" pipe plug in the 3 jaw and turned off the square end:

« Last Edit: July 11, 2017, 05:13:33 PM by vtsteam »
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Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #155 on: January 29, 2015, 05:58:09 PM »
Then reversed it in the chuck and turned off the threads:

« Last Edit: July 11, 2017, 05:19:17 PM by vtsteam »
I love it when a Plan B comes together!
Steve
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Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #156 on: January 29, 2015, 05:59:37 PM »
Parted it off short:

« Last Edit: July 11, 2017, 05:19:40 PM by vtsteam »
I love it when a Plan B comes together!
Steve
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Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #157 on: January 29, 2015, 06:01:18 PM »
Drilled it to suit the nail crankshaft:

« Last Edit: July 11, 2017, 05:20:36 PM by vtsteam »
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Steve
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Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #158 on: January 29, 2015, 06:06:01 PM »
Began filing a cam profile with a coarse file. To give 110 degrees on inlet, I needed the minimum cam thickness to be  0.539" on the 0.713 blank.



I got it to withn 2 thou with the coarse file, and then finished with a fine file. Then I drilled and tapped the boss for a 5-40 set screw.
« Last Edit: July 11, 2017, 05:21:05 PM by vtsteam »
I love it when a Plan B comes together!
Steve
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Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #159 on: January 29, 2015, 06:08:16 PM »
And mounted it on the engine:

« Last Edit: July 11, 2017, 05:21:28 PM by vtsteam »
I love it when a Plan B comes together!
Steve
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Offline Manxmodder

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Re: Pipe and Bolt Engine Mod-Up
« Reply #160 on: January 29, 2015, 09:22:55 PM »
Steve, that is really coming together nicely,I'm very impressed.

Russel,top job you've done there,and as others have said I really like the novel features you've designed into this engine. And it runs! :clap: :clap:....OZ.
Helixes aren't always downward spirals,sometimes they're screwed up

Offline RussellT

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Re: Pipe and Bolt Engine Mod-Up
« Reply #161 on: January 30, 2015, 02:30:53 PM »
Thanks Oz.

 :thumbup: :clap: Steve.

Russell
Common sense is unfortunately not as common as its name suggests.

Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #162 on: January 30, 2015, 04:34:31 PM »
Thanks Oz! :beer:

Today I cut some short sections of pipe, and nother pipe plug. Ground the corners of the plug before chucking in the lathe:

« Last Edit: July 11, 2017, 05:21:54 PM by vtsteam »
I love it when a Plan B comes together!
Steve
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Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #163 on: January 30, 2015, 04:41:05 PM »
Plug corners turned off, and slight rduction in thread diameter:


« Last Edit: July 11, 2017, 05:22:13 PM by vtsteam »
I love it when a Plan B comes together!
Steve
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Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #164 on: January 30, 2015, 04:42:05 PM »
Nested everything together on a firebrick:


« Last Edit: May 21, 2018, 05:06:32 PM by vtsteam »
I love it when a Plan B comes together!
Steve
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Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #165 on: January 30, 2015, 04:43:21 PM »
And brazed them together:

« Last Edit: July 11, 2017, 05:22:54 PM by vtsteam »
I love it when a Plan B comes together!
Steve
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Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #166 on: January 30, 2015, 04:45:25 PM »
Cleaned the whole thing up on the lathe and drilled a center hole to suit the nail crank:


« Last Edit: July 11, 2017, 05:23:16 PM by vtsteam »
I love it when a Plan B comes together!
Steve
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Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #167 on: January 30, 2015, 04:47:58 PM »
Installed a set screw, and mounted a new flywheel on the engine:

« Last Edit: July 11, 2017, 05:23:42 PM by vtsteam »
I love it when a Plan B comes together!
Steve
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Offline RussellT

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Re: Pipe and Bolt Engine Mod-Up
« Reply #168 on: January 31, 2015, 12:39:31 PM »
I've done a bit more to my wobbler after showing the video of the parts crudely mounted.  I think it's now more or less finished.

I've made a frame to hold the parts using a bit of pipe and some six inch nails.  A blob of weld holds them together.  The axle for the flywheel is another bit of 6 inch nail with a glazing sprig (a small wedge shaped nail used for retaining glass before putty) through a hole in the end to retain the flywheel.  That goes through the pipe and is welded on the back.

The ports were filed square and filed so that the inlet and exhaust opened and closed together at TDC and BDC.  The square edges also make the ports open more effectively.  That made it run much better.

Another chunk of six inch nail drilled on the lathe was used for the inlet pipe and that was silver soldered in place using my last half inch of silver solder.

A bolt was used to retain the bearing/valve/nut and fastened on the back with a nut.

Here's a picture showing how it looks now.



I can't make up my mind whether or not to paint it.  What does anyone think?

I'll do another video showing it running in this state in a day or two.

Russell
Common sense is unfortunately not as common as its name suggests.

Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #169 on: January 31, 2015, 12:58:35 PM »
 :thumbup: :clap:

ps, I like yours without paint, Russell. but I'm sure it would look good either way.
« Last Edit: January 31, 2015, 01:26:30 PM by vtsteam »
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Steve
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Offline shipto

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Re: Pipe and Bolt Engine Mod-Up
« Reply #170 on: January 31, 2015, 03:50:10 PM »
I just realised we only have 2 weeks to finish  :bugeye: all VTsteams fault fancy doing this during the cold months  :wack:
Aaaaaanyway I spent a bit of time today on the fly wheel and piston which I decided to remake as I wasnt happy with the first one.
I started off by thinking about the framework that everything will sit on and made a start on that and then fixed the piston end position, I left it very long as I am not exactly sure how I am going to fix it.
A little bit of the bar...erm I mean homemade bolt that I totally made before cutting it down again to make this  :lol: was turned for the piston end  before pressing it onto a short length of chromed tube and then constructed the outer tube. I am much happier with the new piston.
I am going to have to put some hours in after work if I want to have a hope of finishing this in time  :doh: especially since I dont have a complete plan, so pray for warmer weather.
Turns out this life c**p is just one big distraction from death but a good one. For the love of god dont give yourself time to think.
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Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #171 on: January 31, 2015, 06:10:11 PM »
Progress!!! :thumbup:
I love it when a Plan B comes together!
Steve
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Offline SwarfnStuff

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Re: Pipe and Bolt Engine Mod-Up
« Reply #172 on: January 31, 2015, 08:43:12 PM »
Russell, I am waiting to see this running painted or not. It looks good. One of the members of my local club has recently bought himself a small plating kit so if it were his I am sure he would add some Bling and nickle plate some or all of it. (Fairly new toy for him, so plating is all the go at present.) Great job
John B
Converting good metal into swarf sometimes ending up with something useful. ;-)

Offline shipto

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Re: Pipe and Bolt Engine Mod-Up
« Reply #173 on: February 01, 2015, 12:53:34 PM »

 :ddb:
Got some kinda independant movement out of it just need to work out the valve to run it properly.
Turns out this life c**p is just one big distraction from death but a good one. For the love of god dont give yourself time to think.
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Offline vtsteam

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Re: Pipe and Bolt Engine Mod-Up
« Reply #174 on: February 01, 2015, 01:29:15 PM »
Hey another running engine!!  :clap: :clap: :clap: :clap:

Seems quite fast, too!. What's the mechanism???  :scratch:

ps. If you have to turn your computer sideways to see it run, does that make it a horizontal?  :)

Congratulations Shipto -- that came along a lot quicker than I thought... :beer:
I love it when a Plan B comes together!
Steve
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