Glow plug conversion
- Thread starter ixb1
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That's really cool. What kind of fuel are you running & what do you figure the compression ratio is?
On this video i used store-bought FAI fuel mix 85/15.Later i added more castor oil to 25%.
In first version i had geometric compression ratio about 7:1.This was too low and engine was not able to run without glow ignitor.
This second version have cca 10:1.Glow plug is MP JET long reach hot.
In first version i had geometric compression ratio about 7:1.This was too low and engine was not able to run without glow ignitor.
This second version have cca 10:1.Glow plug is MP JET long reach hot.
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Marek your Boll Aero model glow engine is running perfectly
and is easy starting and the adjustment of the engine seems very easy
to do so a very good engine to handle.
You might be proud of your self nice done and a perfect finsih of the whole
engine has given a good result.
many greetings from modelmotor-Gerard-The Netherlands-Europe.
and is easy starting and the adjustment of the engine seems very easy
to do so a very good engine to handle.
You might be proud of your self nice done and a perfect finsih of the whole
engine has given a good result.
many greetings from modelmotor-Gerard-The Netherlands-Europe.
- Joined
- Feb 8, 2013
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- 274
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- 187
Hallo Marek,
I send you my reply about the press in Wrist Pin for the MP 3,2 cc model glow engine.In the meantime when surfing on the internet at special the site of "homemodelenginemachinist" i found your conversion from the 1,6 cc side port engine to a glow plug model engine with a rotary valve on the backplate from the engine.
I do like this construction because i once made the Boll Aero 1.6 with a special glow head and a separate glow plug.The engine ran,but there was still something wrong because there were just so few RPM's that i canceled that project.Looking a your project now with that Boll Aro engine i can say that it sounds wonderfull and runs Ok.
Please can you write down some sizes from the parts you made your own so that i can make these parts as well to rebuilt this engine from a diesel to a glow plug version.
I hope that this is possible.
Thank you very much for helping me with my questions from Gerard-modelmotor.
I send you my reply about the press in Wrist Pin for the MP 3,2 cc model glow engine.In the meantime when surfing on the internet at special the site of "homemodelenginemachinist" i found your conversion from the 1,6 cc side port engine to a glow plug model engine with a rotary valve on the backplate from the engine.
I do like this construction because i once made the Boll Aero 1.6 with a special glow head and a separate glow plug.The engine ran,but there was still something wrong because there were just so few RPM's that i canceled that project.Looking a your project now with that Boll Aro engine i can say that it sounds wonderfull and runs Ok.
Please can you write down some sizes from the parts you made your own so that i can make these parts as well to rebuilt this engine from a diesel to a glow plug version.
I hope that this is possible.
Thank you very much for helping me with my questions from Gerard-modelmotor.
Hi Gerard
My conversion was actually with reed valve and not rotary valve. "final" version of reed was looks much simpler. Thin steel reed screved on the backplate. Reed cover that you may see above was removed,because it caused power drop. Reed engine have excellent starting ability ,but often starts in reverse direction.
Today the engine have bigger 2cc cylinder with different porting and crankshaft front rotary valve intake.
My conversion was actually with reed valve and not rotary valve. "final" version of reed was looks much simpler. Thin steel reed screved on the backplate. Reed cover that you may see above was removed,because it caused power drop. Reed engine have excellent starting ability ,but often starts in reverse direction.
Today the engine have bigger 2cc cylinder with different porting and crankshaft front rotary valve intake.
