Gas radial engines
02-12-2015, 04:09 AM
#426
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quote :
"As an expert in reliable 4-stroke engines, Saito engineers spent years developing the best-built 4-stroke gas engine. The power-to-weight ratio of a Saito engine creates a one-of-a-kind flying experience."
Maybe this statement is a bit of a stretch as they have a hollow crank journal and the could have used a smaller diameter solid journal and a needle roller in the main rod, simple but effective.
Cheers Bk
02-12-2015, 06:20 AM
#428
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02-12-2015, 01:15 PM
#430
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The final modifications to the crank/rod assembly
It should be back together this weekend for some running in followed by many hours of seizure free flight.
BK
It should be back together this weekend for some running in followed by many hours of seizure free flight.
BK
02-12-2015, 08:04 PM
#432
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It puzzles me why they have introduced a new and improved inlet plenum and bush the master conrod on the FG60R3 only when both 84's & 33's are really proving to be unreliable.
Cheers BK
02-14-2015, 10:48 AM
#434
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02-14-2015, 11:00 AM
#435
Thanks Alex.
My FG84 is totaly standard.
I will report on here how it behaves for sure.
I have filled 25ml of 0w30 motorcycle oil into the breather, and rotated the engne at different angles to lubricate it all on the inside for my initial startup.
Will be running 15:1 Castrol Power one TTS oil in the fuel.
The russian plane with the saito is a YAK-3U/Yak11 from CY model.
Bearcat is also a CY models with a moki 180.....still in progress
My FG84 is totaly standard.
I will report on here how it behaves for sure.
I have filled 25ml of 0w30 motorcycle oil into the breather, and rotated the engne at different angles to lubricate it all on the inside for my initial startup.
Will be running 15:1 Castrol Power one TTS oil in the fuel.
The russian plane with the saito is a YAK-3U/Yak11 from CY model.
Bearcat is also a CY models with a moki 180.....still in progress
Last edited by SJN; 02-14-2015 at 11:03 AM.
02-14-2015, 11:35 AM
#437
I seem to have read that it does not need to be chocked....or at least you can close the throttle completly and chocke it like that........will see for it goes.
Otherwise, there is a chocke tool included with the saito that you insert at the low speed needle, and pull teh throttle body sideways....like on my older ENYA engines :-)
Whay do you guys do on these saito FG radials ?
Otherwise, there is a chocke tool included with the saito that you insert at the low speed needle, and pull teh throttle body sideways....like on my older ENYA engines :-)
Whay do you guys do on these saito FG radials ?
02-14-2015, 12:09 PM
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I have my FG-60 still in the test bench running, there is not a chocke tool included, I choke the carburetor with my finger, I think is not possible start the engine by hand without prime. Is my first Saito radial, but with another four stroke OS engine that I have also without choke I prime pressurizing the tank by tube vent... but always some fuel get out of carburetor...
02-14-2015, 12:33 PM
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I never seen before that method, my FG-60 maybe start with electric starter without choke, but not by hand, nothing says the manual about how to start by hand, and I dont like prime the engine pressurizing the tank because some fuel get out outside the carburetor littering the wood of the plane with gasoline... I need another better method...
Last edited by Alex70; 02-14-2015 at 11:49 PM.
02-14-2015, 12:41 PM
#441
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Thanks Alex.
My FG84 is totaly standard.
I will report on here how it behaves for sure.
I have filled 25ml of 0w30 motorcycle oil into the breather, and rotated the engne at different angles to lubricate it all on the inside for my initial startup.
Will be running 15:1 Castrol Power one TTS oil in the fuel.
The russian plane with the saito is a YAK-3U/Yak11 from CY model.
Bearcat is also a CY models with a moki 180.....still in progress
My FG84 is totaly standard.
I will report on here how it behaves for sure.
I have filled 25ml of 0w30 motorcycle oil into the breather, and rotated the engne at different angles to lubricate it all on the inside for my initial startup.
Will be running 15:1 Castrol Power one TTS oil in the fuel.
The russian plane with the saito is a YAK-3U/Yak11 from CY model.
Bearcat is also a CY models with a moki 180.....still in progress
The Bearcat is a nice plane as well, its a model I always wanted to build with such a history with its predecessors the Wildcat then Hellcat with a kill ratio of 19 to 1 versus Japanese Zero.
The Bearcat looked to be even better but the war ended before they got to see service.
looking forward to some videos mate!
Cheers BK
02-14-2015, 12:50 PM
#442
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I never seen before that method, my FG-60 maybe start with electric starter without choke, but not by hand, nothing says the manual about how to start by hand, and I dont like prime the engine pressurizing the tank because some fuel get out outside the carburetor littering the wood of plane with gasoline... I need another better method...
They are a pumped carby with a diaphragm in the carby that pumps using the inlet vacuum pulses and these pulses are strongest when the carby is at idle Ive found. Turning the motor with the carby at idle position you will see the fuel come up the fuel line in pulses as the motors intake pulses operate the diaphragm.
It will start fine with an electric starter and you wont ever hurt your fingers either!
Cheers Bk
02-14-2015, 12:51 PM
#443
Yea, the Bearcat never realy saw any combat.
The Yak 3U/Yak 11 also was fished at the end of the way, and didn`t see any combat either.
But these were some of the best prop planes designed at the end of line for the piston engine warbirds.
I just found a Hellcat that looks realy neat.....would love to get a 60cc Saito for it.....if it fits the cowl. :-)
http://www.skysun-hobbies.com/produc...p?cid=31&id=63
Hopefully that engine will last and run great with the updated design and parts....
But have to get these 2 warbirds finished first :-)
The Yak 3U/Yak 11 also was fished at the end of the way, and didn`t see any combat either.
But these were some of the best prop planes designed at the end of line for the piston engine warbirds.
I just found a Hellcat that looks realy neat.....would love to get a 60cc Saito for it.....if it fits the cowl. :-)
http://www.skysun-hobbies.com/produc...p?cid=31&id=63
Hopefully that engine will last and run great with the updated design and parts....
But have to get these 2 warbirds finished first :-)
02-14-2015, 01:08 PM
#446
Realy looking forward to trying out my Saito 200TI too........I love IC engines
Flew the mustang with a Magnum 180 before installing the Saito.
I hope the freezing weather here in Denmark soon leaves, so I can get out and fly again
Flew the mustang with a Magnum 180 before installing the Saito.
I hope the freezing weather here in Denmark soon leaves, so I can get out and fly again
02-14-2015, 01:37 PM
#448
Its from Thunder Tiger.
Unfortunatly the quality of the kit is not very good, and you have to beef up the landing gear area.....you also have to be lucky that they glued the wing ribs in properly.....some have had the wing delaminate during flight.
The tail also flutters if built stock.....so it is also a project build.
Its only 160cm in span.
I highly reccomend the Rare bear from hobbyking and use a 4S 1000mih battery.
It is an awsome flyer, and very fast....and affordable
Otherwise get the 3W beacat from German, and install a Moki in it :-)
http://www.3w-modellmotoren.com/kata...sscale-45.html
https://www.youtube.com/watch?v=_Gy2vAaxyiU
Unfortunatly the quality of the kit is not very good, and you have to beef up the landing gear area.....you also have to be lucky that they glued the wing ribs in properly.....some have had the wing delaminate during flight.
The tail also flutters if built stock.....so it is also a project build.
Its only 160cm in span.
I highly reccomend the Rare bear from hobbyking and use a 4S 1000mih battery.
It is an awsome flyer, and very fast....and affordable
Otherwise get the 3W beacat from German, and install a Moki in it :-)
http://www.3w-modellmotoren.com/kata...sscale-45.html
https://www.youtube.com/watch?v=_Gy2vAaxyiU
02-14-2015, 02:06 PM
#449
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02-15-2015, 05:09 AM
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