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Home Model Engine Machinist > HMEM > Introduction > The Holly Buddy 2,5 cc model diesel engine

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Old 04-24-2017, 06:52 PM   #21
modelmotor
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Hallo Model Engine Friends
Here are several extra photos made during the making from the exhaust ports/slots.

many greetings from Gerard-modelmotor-The Netherlands-Europe.


Attached Thumbnails
frezen van de uitlaatopeningen met behulp van zaagfreesjes 017.jpg   frezen van de uitlaatopeningen met behulp van zaagfreesjes 018.jpg   frezen van de uitlaatopeningen met behulp van zaagfreesjes 019.jpg   frezen van de uitlaatopeningen met behulp van zaagfreesjes 020.jpg   frezen van de uitlaatopeningen met behulp van zaagfreesjes 022.jpg  

frezen van de uitlaatopeningen met behulp van zaagfreesjes 024.jpg   frezen van de uitlaatopeningen met behulp van zaagfreesjes 025.jpg  
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Old 04-29-2017, 01:09 PM   #22
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Hallo Model Engine Friends
You can see the photos made during the lapping work from my cilinderliner. I used the ACRO-Lap tools made in U.S.A. beautifull made and from a very good quality.
I have already a great collection of different sizes Adjustable Laps from this manufactorer.
I could by them during an Oldtimer Meeting in my country from a dealer who had a sale out from these tools because of the fact that there was not enough interest from the people,but i guarantee you they are worth every Euro or Dollar
Yesterday i have visited a great nearly new Toolwarehouse in my country filled with so many Tools of all kind and size and of course for all kinds of work so i did n't leave the building without buying something for example a couple of special Toolholders for Milling Saw Blades and of course the round Saw Blades in several sizes have been bought.
Many greetings from Gerard-mdelmotor-The Netherlands-Europe.


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lappen van de cilinderbus 002.jpg   lappen van de cilinderbus 003.jpg   lappen van de cilinderbus 004.jpg   lappen van de cilinderbus 005.jpg   lappen van de cilinderbus 006.jpg  

lappen van de cilinderbus 007.jpg   lappen van de cilinderbus 008.jpg   lappen van de cilinderbus 009.jpg   lappen van de cilinderbus 012.jpg  
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Old 04-29-2017, 02:52 PM   #23
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Hallo Model Engine Friends,
Now i show you a continuation from my lapping work.The photos will give you an idea about this work.

many greetings from Gerard-modelmotor-The Netherlands-Europe.
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foto's van het lappen van de cilinderbus 002.jpg   foto's van het lappen van de cilinderbus 003.jpg   foto's van het lappen van de cilinderbus 004.jpg   foto's van het lappen van de cilinderbus 005.jpg   foto's van het lappen van de cilinderbus 007.jpg  

foto's van het lappen van de cilinderbus 008.jpg   foto's van het lappen van de cilinderbus 009.jpg   foto's van het lappen van de cilinderbus 010.jpg   foto's van het lappen van de cilinderbus 013.jpg  
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Old 05-01-2017, 05:30 PM   #24
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Hallo Model Engine Friends
Yesterday i made the Contra piston for my Holly Buddy 2.5 cc model engine.
As material i used "Cast Iron Mehanite" quality which is ideal for this engine part and rather easy to make.
I made several photos during the process hopefully they give enough information.

Many greetings from Gerard-modelmotor-The Netherlands-Europe.
Attached Thumbnails
contra zuiger maken voor Holly Buddy 2,5 cc 001.jpg   contra zuiger maken voor Holly Buddy 2,5 cc 003.jpg   contra zuiger maken voor Holly Buddy 2,5 cc 006.jpg   contra zuiger maken voor Holly Buddy 2,5 cc 012.jpg   contra zuiger maken voor Holly Buddy 2,5 cc 013.jpg  

contra zuiger maken voor Holly Buddy 2,5 cc 014.jpg   contra zuiger maken voor Holly Buddy 2,5 cc 015.jpg   contra zuiger maken voor Holly Buddy 2,5 cc 016.jpg   contra zuiger maken voor Holly Buddy 2,5 cc 017.jpg  
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Old 05-02-2017, 06:46 PM   #25
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Hallo Model Engine Friends,
This time i made the piston for the Holly Buddy 2.5 cc model diesel engine.
I made the piston from real good material known as Cast Iron bar in Mehanite quality.
The photos wll show you the process of making this engine part of course a little oversized to lap it into the cilinderliner later on.

Many greetings from Gerard-modelmotor-The Netherlands-Europe.
Attached Thumbnails
contra zuiger maken voor Holly Buddy 2,5 cc 001.jpg   zuiger voor de Holly Buddy 2.5 cc model engine 002.jpg   zuiger voor de Holly Buddy 2.5 cc model engine 003.jpg   zuiger voor de Holly Buddy 2.5 cc model engine 005.jpg   zuiger voor de Holly Buddy 2.5 cc model engine 006.jpg  

zuiger voor de Holly Buddy 2.5 cc model engine 007.jpg   zuiger voor de Holly Buddy 2.5 cc model engine 009.jpg   zuiger voor de Holly Buddy 2.5 cc model engine 011.jpg   zuiger voor de Holly Buddy 2.5 cc model engine 012.jpg  
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Old 05-02-2017, 06:52 PM   #26
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Hallo Model Engine Friends,,
Here are the photos which are left from the making of the piston.
I hope you enjoy them to watch.
Gerard-modelmotor-The Netherlands-Europe.
Attached Thumbnails
zuiger voor de Holly Buddy 2.5 cc model engine 013.jpg   zuiger voor de Holly Buddy 2.5 cc model engine 016.jpg   zuiger voor de Holly Buddy 2.5 cc model engine 017.jpg   zuiger voor de Holly Buddy 2.5 cc model engine 018.jpg   zuiger voor de Holly Buddy 2.5 cc model engine 019.jpg  

zuiger voor de Holly Buddy 2.5 cc model engine 020.jpg   zuiger voor de Holly Buddy 2.5 cc model engine 021.jpg   zuiger voor de Holly Buddy 2.5 cc model engine 022.jpg  
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Old 05-12-2017, 07:10 PM   #27
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Hallo Model Engine Friends,
Last weeks i made the Crankshaft from my Holly Buddy 2,5 cc .I used a very good quality EN24 Steel for that job.
The photo's will show you as usuall how i did the work and as result the Crankshaft.
I hope you like what i made on my small machinery.

many greetings from Gerard-modelmotor-The Netherlands-Europe.
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krukas fabricage vor Holly Buddy 2,5 cc 003.jpg   krukas fabricage vor Holly Buddy 2,5 cc 002.jpg  
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Old 05-13-2017, 06:15 PM   #28
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Hallo Model Engine Friends

Here are the following production photos from the Crankshaft for my Holly Buddy 2,5 cc model engine.

many greetings from Gerard-modelmotor-The Netherlands-Europe.
Attached Thumbnails
krukas fabricage vor Holly Buddy 2,5 cc 005.jpg   krukas fabricage vor Holly Buddy 2,5 cc 006.jpg   krukas fabricage vor Holly Buddy 2,5 cc 008.jpg   krukas fabricage vor Holly Buddy 2,5 cc 009.jpg   krukas fabricage vor Holly Buddy 2,5 cc 010.jpg  

krukas fabricage vor Holly Buddy 2,5 cc 012.jpg   krukas fabricage vor Holly Buddy 2,5 cc 013.jpg   krukas fabricage vor Holly Buddy 2,5 cc 014.jpg   krukas fabricage vor Holly Buddy 2,5 cc 015.jpg  
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Old 05-13-2017, 06:30 PM   #29
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Hallo Model Engine Friends,

The following photos might be also of interest for you.

many greetings from Gerard-modelmotor-The Netherlands-Europa.
Attached Thumbnails
krukas fabricage vor Holly Buddy 2,5 cc 016.jpg   krukas fabricage vor Holly Buddy 2,5 cc 019.jpg   krukas fabricage vor Holly Buddy 2,5 cc 020.jpg   krukas fabricage vor Holly Buddy 2,5 cc 021.jpg   krukas fabricage vor Holly Buddy 2,5 cc 022.jpg  

krukas fabricage vor Holly Buddy 2,5 cc 023.jpg   krukas fabricage vor Holly Buddy 2,5 cc 024.jpg   krukas fabricage vor Holly Buddy 2,5 cc 025.jpg   krukas fabricage vor Holly Buddy 2,5 cc 027.jpg   krukas fabricage vor Holly Buddy 2,5 cc 028.jpg  

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Old 05-13-2017, 08:45 PM   #30
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Nice work Gerard

I use always 42CrMo4 steel for my crankshafts

Why do you take the crankshaft out of the chuck and put it back in again ?

Here's some pictures of the crankshaft for mine Nova 1 ( a Dutch desing from I.J.v.Leeuwen during WW2 in 1943)


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Nova 061.JPG   Nova 060.JPG   Nova 059.JPG  
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