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Here's a build log of a BollAero 18 I built over several months in Summer of 2021 and had my grandfather accompany to experience machining.
Unfortunately it doesn't turn over. Either the fuel mixture isn't correct or not enough compression.
First 10 Pictures of the Build:
Crank Case:
![IMG_20210515_212844.jpg IMG_20210515_212844.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100458-f42457a61053195832762d1b1118379b.jpg)
Cylinder:
![IMG_20210522_180214.jpg IMG_20210522_180214.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100450-5139220693ab322ad0c7a8075cd4ce3e.jpg)
![IMG_20210524_125550.jpg IMG_20210524_125550.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100452-53ca8c4abfcb1ab4feaaa52f351608bb.jpg)
Spray bar:
![IMG_20210523_214847.jpg IMG_20210523_214847.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100451-d118a88305bba1f18396bdade8e5c585.jpg)
![IMG_20210524_192618.jpg IMG_20210524_192618.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100456-f53dc668720f0a24d7caec58237314ed.jpg)
![IMG_20210524_194244.jpg IMG_20210524_194244.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100457-40750e21cc0a3858e18e77db8819339e.jpg)
Main bearing Housing:
![IMG_20210524_134816.jpg IMG_20210524_134816.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100453-ac65d7c6bc5ef7a337656278abba0c47.jpg)
![IMG_20210524_143155.jpg IMG_20210524_143155.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100454-b352db44c30b5fb79d96f6c9f3436228.jpg)
![IMG_20210524_153212.jpg IMG_20210524_153212.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100455-7fd38289511b2e13a81a4545ee1b327f.jpg)
Unfortunately it doesn't turn over. Either the fuel mixture isn't correct or not enough compression.
First 10 Pictures of the Build:
Crank Case:
![IMG_20210515_212844.jpg IMG_20210515_212844.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100458-f42457a61053195832762d1b1118379b.jpg)
Cylinder:
![IMG_20210522_180214.jpg IMG_20210522_180214.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100450-5139220693ab322ad0c7a8075cd4ce3e.jpg)
![IMG_20210524_125550.jpg IMG_20210524_125550.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100452-53ca8c4abfcb1ab4feaaa52f351608bb.jpg)
Spray bar:
![IMG_20210523_214847.jpg IMG_20210523_214847.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100451-d118a88305bba1f18396bdade8e5c585.jpg)
![IMG_20210524_192618.jpg IMG_20210524_192618.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100456-f53dc668720f0a24d7caec58237314ed.jpg)
![IMG_20210524_194244.jpg IMG_20210524_194244.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100457-40750e21cc0a3858e18e77db8819339e.jpg)
Main bearing Housing:
![IMG_20210524_134816.jpg IMG_20210524_134816.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100453-ac65d7c6bc5ef7a337656278abba0c47.jpg)
![IMG_20210524_143155.jpg IMG_20210524_143155.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100454-b352db44c30b5fb79d96f6c9f3436228.jpg)
![IMG_20210524_153212.jpg IMG_20210524_153212.jpg](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/100/100455-7fd38289511b2e13a81a4545ee1b327f.jpg)