Author Topic: 4 stroke single  (Read 71404 times)

Offline Roger B

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4 stroke single
« on: June 13, 2013, 11:17:59 AM »
This is my current project. I will put up pictures of the build sequence to date and hopefully gain some tips from the more experienced members on how I could do things better.

Some of the concept came from a 2 cylinder engine I saw in a German magazine. The basic dimensions came from the material sizes available from Conrad and the amount I could offset the crankshaft in the 4 jaw chuck to set the stroke.

As I had not done any machining for quite a few years I made a trial crankshaft from aluminium and then recently made the 'real one' from steel.

During the build I slowly increased the amount of tooling I had, for example a vertical slide for the lathe and a rotary table, so some of the earlier operations would be done differently now.
Best regards

Roger

Offline vcutajar

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Re: 4 stroke single
« Reply #1 on: June 13, 2013, 11:25:14 AM »
Good progress Roger.

Vince

Offline steamer

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Re: 4 stroke single
« Reply #2 on: June 13, 2013, 11:25:42 AM »
Nice one Roger!

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

Offline b.lindsey

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Re: 4 stroke single
« Reply #3 on: June 13, 2013, 11:41:16 AM »
That's looking good Roger, Looking forward to see more as you progress.

Bill

Offline NickG

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Re: 4 stroke single
« Reply #4 on: June 13, 2013, 11:48:13 AM »
Roger, this looks nearly finished is it? Nice work :ThumbsUp:

Offline Roger B

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Re: 4 stroke single
« Reply #5 on: June 13, 2013, 12:01:52 PM »
I'm currently on the last 20% that also takes 80% of the time. I'm also remaking a few parts that I am not satisfied with as my skills have improved with practise.

Best regards

Roger
Best regards

Roger

Offline rebush

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Re: 4 stroke single
« Reply #6 on: June 13, 2013, 12:21:42 PM »
Roger: Looks great. Very nice work. Thanks for posting your pictures. Roger
Hopelessly lost but making darn good time.

Offline Dave Otto

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Re: 4 stroke single
« Reply #7 on: June 13, 2013, 01:21:17 PM »
Nice looking enigne!

Thanks for posting.

Dave

Offline metalmad

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Re: 4 stroke single
« Reply #8 on: June 13, 2013, 01:39:24 PM »
top Job  :ThumbsUp:
Pete
A little bit every day, sometimes the same little bit

Offline Roger B

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Re: 4 stroke single
« Reply #9 on: June 14, 2013, 09:13:52 AM »
A few more steps along the way. The tilting vise was made by my father during his apprenticeship with English Electric many years ago.
Best regards

Roger

Online Jo

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Re: 4 stroke single
« Reply #10 on: June 14, 2013, 09:17:43 AM »
Enjoying the pictures of the build keep them coming  ;D

The tilting vise was made by my father during his apprenticeship with English Electric many years ago.

It is amazing how many of these apprentice pieces are still being used I have two of the vices I made as an apprentice that still get regular use  :ThumbsUp:.

Jo
Enjoyment is more important than achievement.

Offline Roger B

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Re: 4 stroke single
« Reply #11 on: June 14, 2013, 10:07:40 AM »
Indeed. I still use a gear puller and a cold chisel  I made on my Engineering Practise 1 course at Highbury Tech.
Best regards

Roger

Online Jo

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Re: 4 stroke single
« Reply #12 on: June 14, 2013, 10:15:11 AM »
...my Engineering Practise 1 course at Highbury Tech.

Snap  :ThumbsUp:: that's where I did my apprentice training.. a few years ago  :embarassed:.

Jo
Enjoyment is more important than achievement.

Offline Roger B

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Re: 4 stroke single
« Reply #13 on: June 14, 2013, 10:40:06 AM »
I was there 1977-78 :old:
Best regards

Roger

Online Jo

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Re: 4 stroke single
« Reply #14 on: June 14, 2013, 10:44:31 AM »
I could say when but that would indicate my age  :hellno: You were there before me  ;)

Jo
Enjoyment is more important than achievement.

 

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