gas tank placing
11-15-2010, 03:09 PM
#2
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RE: gas tank placing
It needs to be inside, or attached to the aircraft, somewhere....other than that, you are good. 
It might take a few extra cranks to pump gas through dry lines if it is further away, but while running, it won't know the difference. It's not like most glow engines that don't have pumps. Place the tank where it works best for your application. I usually aim for mounting on or near the CG of the RTF plane, so I can tweak the desired balance point with batteries and maintain that balance from full tank, to empty. It's height as compared to the center of the carb is a moot point.
It might take a few extra cranks to pump gas through dry lines if it is further away, but while running, it won't know the difference. It's not like most glow engines that don't have pumps. Place the tank where it works best for your application. I usually aim for mounting on or near the CG of the RTF plane, so I can tweak the desired balance point with batteries and maintain that balance from full tank, to empty. It's height as compared to the center of the carb is a moot point.
11-16-2010, 09:12 PM
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RE: gas tank placing
Unless you're running one of the new Saito FG gassers with Saito's own design carb - gotta treat that as for a non-pumped glow motor...........
11-17-2010, 02:41 PM
#8
RE: gas tank placing
The Saito FG-14 and FG-20 are the ones with the poor pump and no regulator in the carb where the tank has to be placed as in a glow powered plane.
The FG-30 and FG-36 as well as the FG-57 twin have a full Walbro WYD carb with a pump and a regulator as most other gas engines
The FG-30 and FG-36 as well as the FG-57 twin have a full Walbro WYD carb with a pump and a regulator as most other gas engines
11-18-2010, 07:16 PM
#9
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RE: gas tank placing
why go for gas saito engines???
Well - what if you want that special fourstroke sound, but the cheap running costs of gas, but you don't want to have a huge plane so a sub-50cc engine is required??????
Then at present you have only ONE choice of engine supplier - Saito
Put another way if you don't mind the weedwacker noise ANY gasser will do
and if you've got endless funds, then ANY foustroke Nitro motor will do
If you can make use of the big OS fourstroke gasser - then fine
If your needs are none of the above - then you need a Saito FG series gasser.....................
I got one - sure hope it works - Lol...........
Well - what if you want that special fourstroke sound, but the cheap running costs of gas, but you don't want to have a huge plane so a sub-50cc engine is required??????
Then at present you have only ONE choice of engine supplier - Saito
Put another way if you don't mind the weedwacker noise ANY gasser will do
and if you've got endless funds, then ANY foustroke Nitro motor will do
If you can make use of the big OS fourstroke gasser - then fine
If your needs are none of the above - then you need a Saito FG series gasser.....................
I got one - sure hope it works - Lol...........
08-11-2011, 10:34 PM
#10
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RE: gas tank placing
I don't mean to bad mouth Saito. All the glow saito's I have run were EXTREMELY reliable. I have the FG-20 and can't get it to run reliably at all. I have 1.25 gallons through it with 20:1 High grade synthetic. I have sent it in for repair, got it back with a new carb, ignition module and spark plug. It still quits in the air, changes tune every flight etc. Any one out there have the same issues or did I just spend 500.00 plus dollars on a lemon? Others in my rc club have had similar issues. Any advice would be appreciated. The engine valves are adjusted and all fuel lines ,tank etc are new and without leaks. Thanks!
