Holt 75 from Italy

[Foketry]

Exaust manifold , roughing and finishing

 

[kuhncw]

You are doing very nice work. I enjoy seeing how you set the parts up for machining.

Thanks.

Chuck

 

[e.picler]

Hi Foketry!
What CAm are you using? I also would like to know what CNC comand you have on your Milling machine. Is it Mach3?

Edi

 

[e.picler]

You are making a fast progress.

Edi

 

[Foketry]

Hi Foketry!
What CAm are you using? I also would like to know what CNC comand you have on your Milling machine. Is it Mach3?

Edi

Hi Picler
I used old Artcam and Mach3

 

[Foketry]

the first phase of the intake manifold

 

[Foketry]

The second phase of the intake manifold , i glued the manifold on a wood
base and took the references on the central hole ,drilled in the first phase
You can see a small displacement between the first and second phase.
I corrected the profile with file .

The challenge is to make internal holes and close them with welded aluminum caps ...

 

[Foketry]

The piston rings

 

[Foketry]

Piston ring grinding

 

[Foketry]

Flange grinding for exhaust and intake manifold
To get the 4 flanges all on the same plane without flatness errors, I mounted a 12,000 rpm spindle motor on the milling machine and with the grinding wheel I finished the planes

 

[Foketry]

After grinding

 

[e.picler]

Hi Foketry!
Great job, you are making fast progress.
At this pace, we will see it running pretty soon.

Congratulations

Edi

 

[Foketry]

the water pump

 

[Foketry]

 

[Foketry]

radiator assembly

 

[Foketry]

Finally the engine is running

With help of my friend Iader we have fine-tuned the timing and carburetion
I used a small Rc model carburetor which , they told me , was more reliable than a self-built carburetor

 

[johnmcc69]

A beautiful display & great runner!

Congratulations!

John

 

[Johno1958]

Love it. Great work.
Cheers
John

 

[kuhncw]

Very well done. Congratulations. I especially like the low idle in the first part of the video. Sounds great.

Chuck

 

[k2steve]

I can't believe haw fast you completed a fantastic project as this. I really enjoyed you post of the build.