Project of the Month built by driller1432

Help Support Home Model Engine Machinist by donating using the link above or becoming a Supporting Member.
Home Model Engine Machinist > Building Them > General Engine Discussion > My first home made model engine The Boll Aero 1,8

Reply
 
Thread Tools
Old 11-08-2017, 07:57 PM   #21
modelmotor
HMEM_LIFETIMESUPPORTER.png
 
Join Date: Feb 2013
Posts: 185
Liked 129 Times on 76 Posts
Likes Given: 11

Default an adjustment bolt at front of Crankshaft

Hallo Model Engine Friends

I have done another modification at my Boll Aero 1.8 model engine.
I made a new piece of screwthread at front of my Crankshaft and used for it an
adjustment Bolt M5 x 40 mm!
You can see the final results on te photos i send with this reply message.
I hope you like the final result.

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


Attached Thumbnails
Boll Aero 1.8 cc model diesel engine  update 031.jpg   Boll Aero 1.8 cc model diesel engine  update 032.jpg   Boll Aero 1.8 cc model diesel engine  update 033.jpg   Boll Aero 1.8 cc model diesel engine  update 034.jpg   Boll Aero 1.8 cc model diesel engine  update 035.jpg  

Boll Aero 1.8 cc model diesel engine  update 036.jpg   Boll Aero 1.8 cc model diesel engine  update 037.jpg   Boll Aero 1.8 cc model diesel engine  update 038.jpg   Boll Aero 1.8 cc model diesel engine  update 040.jpg  
modelmotor is offline  
 
Reply With Quote
Old 11-09-2017, 03:41 AM   #22
Billitmotors
 
Join Date: Jan 2010
Posts: 35
Liked 15 Times on 11 Posts

Default

G'day Modelmotor
After looking at the photo's of your crankshaft with the undercut section of the shaft adjacent to the intake port on the shaft I would be very interested to know how well your motor runs.
Because by machining away what looks to be, between .010" to .020" off the diameter of the shaft the seal between the shaft and the crankcase is now non existent, meaning the port can never truly open or close, so that the port in the shaft is always open and you will be loosing crankcase pressure all the time.
Also you would be better tapping the shaft in the lathe between the chuck and the tailstock for alignment.
Rob Jenkins.


Billitmotors is offline  
 
Reply With Quote
Old 11-09-2017, 04:26 AM   #23
Mechanicboy
 
Mechanicboy's Avatar
 
Join Date: Jul 2013
Location: Bergen in Norway
Posts: 466
Liked 169 Times on 134 Posts
Likes Given: 226

Default

Quote:
Originally Posted by Billitmotors View Post
G'day Modelmotor
After looking at the photo's of your crankshaft with the undercut section of the shaft adjacent to the intake port on the shaft I would be very interested to know how well your motor runs.
Rob Jenkins, it's not intake port. Also to lubricate the bearing via canal from crankcase to bearing. The engine is a side port engine.
__________________
Jens Eirik, Bergen in Norway :)
Mechanicboy is offline  
modelmotor Likes This 
Reply With Quote
Old 11-09-2017, 10:37 AM   #24
Billitmotors
 
Join Date: Jan 2010
Posts: 35
Liked 15 Times on 11 Posts

Default

Fair enough my mistake. I obviously wasn't paying attention.
Billitmotors is offline  
3
People Like This 
Reply With Quote
Old 11-24-2017, 01:11 PM   #25
modelmotor
HMEM_LIFETIMESUPPORTER.png
 
Join Date: Feb 2013
Posts: 185
Liked 129 Times on 76 Posts
Likes Given: 11

Default

Hallo Model Engine Friends,

I have found several small issues which needed an update at my first made Boll Aero 1.8 cc.This engine built in 2008 without any knowledge about about home made model engines diserves a good tune up i think.
I made a photo collage from all the parts i renewed or made from new material.
I hope that you enjoy the photos as much as i did.

many greetings from modelmotor-Gerard-The Netherlands-Europe.
Attached Thumbnails
update several Boll Aero engine parts 003.jpg   update several Boll Aero engine parts 005.jpg   update several Boll Aero engine parts 006.jpg   update several Boll Aero engine parts 010.jpg   update several Boll Aero engine parts 011.jpg  

update several Boll Aero engine parts 013.jpg   update several Boll Aero engine parts 014.jpg   update several Boll Aero engine parts 015.jpg   update several Boll Aero engine parts 016.jpg   update several Boll Aero engine parts 017.jpg  

update several Boll Aero engine parts 019.jpg   update several Boll Aero engine parts 021.jpg   update several Boll Aero engine parts 022.jpg   update several Boll Aero engine parts 025.jpg  
modelmotor is offline  
 
Reply With Quote
Old 11-26-2017, 07:50 PM   #26
modelmotor
HMEM_LIFETIMESUPPORTER.png
 
Join Date: Feb 2013
Posts: 185
Liked 129 Times on 76 Posts
Likes Given: 11

Default

Hallo Model Engine Friends,
I had left some pictures from updates done at my Boll Aero engine recently and in the past.
I hope that you enjoy the pictures from the updates just like i do.

many greetings from modelmotor-Gerard-The Netherlands-Europe.
Attached Thumbnails
update several Boll Aero engine parts 026.jpg   update several Boll Aero engine parts 028.jpg   update several Boll Aero engine parts 029.jpg   update several Boll Aero engine parts 030.jpg   update several Boll Aero engine parts 031.jpg  

update several Boll Aero engine parts 034.jpg   update several Boll Aero engine parts 035.jpg   update several Boll Aero engine parts 038.jpg   update several Boll Aero engine parts 042.jpg   update several Boll Aero engine parts 045.jpg  

update several Boll Aero engine parts 046.jpg   update several Boll Aero engine parts 050.jpg   update several Boll Aero engine parts 051.jpg  
modelmotor is offline  
 
Reply With Quote
Old 11-26-2017, 08:06 PM   #27
modelmotor
HMEM_LIFETIMESUPPORTER.png
 
Join Date: Feb 2013
Posts: 185
Liked 129 Times on 76 Posts
Likes Given: 11

Default

Hallo Model Engine Friends,

Here are my last pictures made after my last Boll Aero engine updates.
I hope you had a good time watching the pictures from my home made model engine "the Boll Aero 1.8 cc".
Many greetings from modelmotor-Gerard-The Netherlands-Europe.
Attached Thumbnails
continuering update Boll Aero 1.8 cc 002.jpg   continuering update Boll Aero 1.8 cc 003.jpg   continuering update Boll Aero 1.8 cc 004.jpg   continuering update Boll Aero 1.8 cc 005.jpg   continuering update Boll Aero 1.8 cc 006.jpg  

continuering update Boll Aero 1.8 cc 008.jpg   continuering update Boll Aero 1.8 cc 009.jpg   continuering update Boll Aero 1.8 cc 011.jpg   continuering update Boll Aero 1.8 cc 010.jpg  
modelmotor is offline  
 
Reply With Quote
Old 01-02-2018, 05:47 PM   #28
modelmotor
HMEM_LIFETIMESUPPORTER.png
 
Join Date: Feb 2013
Posts: 185
Liked 129 Times on 76 Posts
Likes Given: 11

Default

Hallo Model Engine Friends,
Still a few other parts are revised at the Boll Aero engine for example a good fit Contra Piston which moves with a hard click to above when the piston goes upwards with some fuel between.
There's also a better compression lever mounted made from a tiny piece of steel plate.I did some refinements at he back plate and propeller screw which now can be mounted complete with propellor and propdriver.
I hope you like the pictures again which maybe will be following up by another couple of pictures when some new ideas are comming inside my head.

many greetings from modelmotor-Gerard-The Netherlands-Europe.
Attached Thumbnails
Boll Aero engine parts  and Steam Engine parts 001.jpg   Boll Aero engine parts  and Steam Engine parts 002.jpg   Boll Aero engine parts  and Steam Engine parts 006.jpg   Boll Aero engine parts  and Steam Engine parts 003.jpg   Boll Aero engine parts  and Steam Engine parts 004.jpg  

Boll Aero engine parts  and Steam Engine parts 007.jpg   Boll Aero engine parts  and Steam Engine parts 012.jpg   Boll Aero engine parts  and Steam Engine parts 015.jpg  
modelmotor is offline  
 
Reply With Quote
Old 01-12-2018, 04:16 PM   #29
modelmotor
HMEM_LIFETIMESUPPORTER.png
 
Join Date: Feb 2013
Posts: 185
Liked 129 Times on 76 Posts
Likes Given: 11

Default

Hallo Model Engine Friends,
The continuation from the pleasure in making new parts for my Boll Aero 1.8 model diesel engine which was n't the succes i was hoping for seems to be an endless story and even so an endless picture show of making these parts which i like to share with you as my Model Engine Friends.
I hope you like my struggle with my machinery and aloy in HE15 quality special meant to make a new conrod from.

Many greetings from modelmotor-Gerard-The Netherlands-Europe.
Attached Thumbnails
001.jpg   002.jpg   006.jpg   007.jpg   008.jpg  

009.jpg   010.jpg   011.jpg   012.jpg   013.jpg  

014.jpg   015.jpg   016.jpg   017.jpg   036.jpg  

modelmotor is offline  
 
Reply With Quote
Old 01-14-2018, 06:15 PM   #30
modelmotor
HMEM_LIFETIMESUPPORTER.png
 
Join Date: Feb 2013
Posts: 185
Liked 129 Times on 76 Posts
Likes Given: 11

Default Finishing the home made Conrod for the Boll Aero 1.8

Hallo Model Engine Friends,

The pictures will show you the finishing from the Home Made Conrod for my
Boll Aero 1.8 model diesel engine.
I hope that you like the work i did at my Conrod to get it in the right shape.

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


Attached Thumbnails
038.jpg   039.jpg   040.jpg   041.jpg   042.jpg  

026.jpg   Boll Aero 1.8 ccmodel engine parts remak 001.jpg   Boll Aero 1.8 ccmodel engine parts remak 002.jpg   Boll Aero 1.8 ccmodel engine parts remak 004.jpg   Boll Aero 1.8 ccmodel engine parts remak 005.jpg  

Boll Aero 1.8 ccmodel engine parts remak 007.jpg   Boll Aero 1.8 ccmodel engine parts remak 008.jpg   Boll Aero 1.8 ccmodel engine parts remak 009.jpg  
modelmotor is offline  
 
Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Boll Aero exhaust port question kita General Engine Discussion 7 06-06-2014 01:45 PM
building materials of boll aero 18 omar khaled General Engine Discussion 3 01-06-2014 12:04 AM
Boll Aero 4.4 bentprop General Engine Discussion 2 02-09-2013 01:37 AM
Boll Aero 18 fuel Drei General Engine Discussion 9 12-15-2012 11:23 PM
Boll Aero 18 radfordc A Work In Progress 44 12-04-2012 08:34 AM



Newest Threads






- Top - Member List