Wanted to share with you my fifth homebuilt model diesel engine project, that came to a finish atleast what comes to machining and turning parts.
I did build according the original plans from the 1954 and late Ron C's article was of great help also:
http://modelenginenews.org/sugden/sugden_build.html
I did deviate a little from the plans namely at venturi opening that is 6,0mm when plans have 1/4" and the
spray bar is also of 3,2mm in diameter when in plan it is 2,8mm. This results in a little bit
more conservative choke area but it is always easier to make a hole larger later than smaller later.
Also removed the backplate mounting lugs carefully and modified the cooling jacket and cylinder hold down flange a little
as being a home made design in the first place I figured that some artistic freedom can be taken here.
Engine weights in at a mere 112g which is not bad for a 2,5cc engine.
![AF54E267-4E51-425A-9D6B-6DDC99238B50.jpeg AF54E267-4E51-425A-9D6B-6DDC99238B50.jpeg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attach/93/93910-AF54E267-4E51-425A-9D6B-6DDC99238B50.jpeg)
![20EA2236-42FB-4EB9-AC7B-D8FD00CD15A2.jpeg 20EA2236-42FB-4EB9-AC7B-D8FD00CD15A2.jpeg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attach/93/93911-20EA2236-42FB-4EB9-AC7B-D8FD00CD15A2.jpeg)
![D95C6345-DACD-44E4-84E6-3D06847AD784.jpeg D95C6345-DACD-44E4-84E6-3D06847AD784.jpeg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attach/93/93912-D95C6345-DACD-44E4-84E6-3D06847AD784.jpeg)
![270C6818-A310-44B0-ACE6-D8516709D9BC.jpeg 270C6818-A310-44B0-ACE6-D8516709D9BC.jpeg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attach/93/93913-270C6818-A310-44B0-ACE6-D8516709D9BC.jpeg)
Video:
Sugden Special first run
I did build according the original plans from the 1954 and late Ron C's article was of great help also:
http://modelenginenews.org/sugden/sugden_build.html
I did deviate a little from the plans namely at venturi opening that is 6,0mm when plans have 1/4" and the
spray bar is also of 3,2mm in diameter when in plan it is 2,8mm. This results in a little bit
more conservative choke area but it is always easier to make a hole larger later than smaller later.
Also removed the backplate mounting lugs carefully and modified the cooling jacket and cylinder hold down flange a little
as being a home made design in the first place I figured that some artistic freedom can be taken here.
Engine weights in at a mere 112g which is not bad for a 2,5cc engine.
![AF54E267-4E51-425A-9D6B-6DDC99238B50.jpeg AF54E267-4E51-425A-9D6B-6DDC99238B50.jpeg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attach/93/93910-AF54E267-4E51-425A-9D6B-6DDC99238B50.jpeg)
![20EA2236-42FB-4EB9-AC7B-D8FD00CD15A2.jpeg 20EA2236-42FB-4EB9-AC7B-D8FD00CD15A2.jpeg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attach/93/93911-20EA2236-42FB-4EB9-AC7B-D8FD00CD15A2.jpeg)
![D95C6345-DACD-44E4-84E6-3D06847AD784.jpeg D95C6345-DACD-44E4-84E6-3D06847AD784.jpeg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attach/93/93912-D95C6345-DACD-44E4-84E6-3D06847AD784.jpeg)
![270C6818-A310-44B0-ACE6-D8516709D9BC.jpeg 270C6818-A310-44B0-ACE6-D8516709D9BC.jpeg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attach/93/93913-270C6818-A310-44B0-ACE6-D8516709D9BC.jpeg)
Video:
Sugden Special first run