Howell V4 from Italy

[Foketry]

Hi everyone
About 2 years ago , before my retirement, i bought plans for construction V4 from Jerry Howell.
I started work the engine block but i suspended it to dedicate myself to the Holt 75 project because i had fallen in love with the characteristic roar of this engine .
Now i resumed Howell V4 which I consider a more challenging project, certainly more complicated.

 

[Foketry]

 

[e.picler]

Hi Foketry!
Another great project. I will be following your construction with great interest. I also have the plans for this engine.

Good luck.

Edi

 

[G54AUST]

Hey Foketry.

Just found your V4 build thread and shall be following very closely.

I've given my kids a wishlist for my birthday with the V4 and the V2 drawings on top of the list.

In the mean time I have ordered and printed the Farm Boy drawings and shall start on these.

Plenty of pix of your build please.


Kind Regards,


Trevor,
Melbourne,
Great Southern Land.

 

[Foketry]

Hi G54
I've already built Farm Boy, it was my first engine, it's a nice project and it works very well. If you need any information, please feel free to ask.

happy Birthday

 

[Foketry]

Milling of gear teeth through the 4th axis , intermediate gear 48 pitch, 78 tooth - 26 tooth
In Italy pitch 48 is not widespread, i had to buy cutters in England or change the project, I preferred buy the new cutters

638 Loctite assembly

 

[Foketry]

 

[Foketry]

After processing the engine block, where it was difficult to make water outlet passages and close them with the caps without water leakage, i started working heads


The finished heads

 

[Foketry]

The rods , fork end rods and knife end rods

2 fork end rods + 2 knife end rods

 

[Foketry]

The oil pump , body and cover

 

[Foketry]

 

[Foketry]

The finished oil pump

 

[Foketry]

After finishing the lapping machine for piston rings (see my post in Tool ) https://www.homemodelenginemachinist.com/threads/lapping-machine-for-piston-rings.31217
I continue with Howell engine

 

[Foketry]

 

[Foketry]

View attachment 109076

View attachment 109076

 

[Foketry]

The double cam , 2 + 2 pieces with self-made CNC milling machine (Rong Fu 45 )
After milling, hardened with water

 

[petertha]

Coming along nice. Is this a dedicated holding fixture for the piston? I don't quite get the set screw & don't see a split line.

I traded my RF-45 in for a mini Bridgeport clone. I'd like to see your RF-45 CNC conversion one day just for old times sake

 

[Foketry]

Coming along nice. Is this a dedicated holding fixture for the piston? I don't quite get the set screw & don't see a split line.

I traded my RF-45 in for a mini Bridgeport clone. I'd like to see your RF-45 CNC conversion one day just for old times sake

It is a very simple fixture dedicated to the Howell V4 pistons, there is a screw that locks it.
The phasing is done through a long pin aligned with the X axis of the machine, I use a dial indicator to align the long pin

 

[Foketry]

Coming along nice. Is this a dedicated holding fixture for the piston? I don't quite get the set screw & don't see a split line.

I traded my RF-45 in for a mini Bridgeport clone. I'd like to see your RF-45 CNC conversion one day just for old times sake

Some photos of my milling machine RF45 :

4 Geckodrive to drive CC motor whit encoder

 

[Foketry]

Usually I use the supplementary motor for aluminum processing, 3000-6000 rpm, 2.2Kw, only for heavy machining I use the on top original motor