Prop Selection
08-19-2007, 09:33 AM
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Prop Selection
I'm putting together a Funtana 90 with an Enya 120R. I'm trying to find a 3-D prop in that motor's range. I was thinking an 18x4, or maybe a 17x4, but I can't seem to find those sizes. Do they exist somewhere, or am I way off? I just bought a 15x4 for my OS 91 FSII, and I've had a 16x4 wide on there before. I plan to run 10% nitro at pretty close to sea level. Any suggestions on where I might find props in that size?
08-20-2007, 10:57 PM
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RE: Prop Selection
Yes, in fact I fired it up for the first time this evening. 
I was suprised, I didn't really expect it to just run. Under the valve cover was very clean, but I decided to try and flush it out before I ran it. Lost of corrosion came out of the main bearing closest to the prop, basically orange fuel. So I flushed it with some old fuel(maybe 2 months old) and cleared it. The one thing I really don't like about this motor so far is the glow plug location/orientation. I just happen to have a very short glow ignitor, and it still nearly touches the prop. I tried to rig a smaller, but very old, remote glow system, no luck. So I plan to buy a new one like anther I have on a P-40, so that's not really that bad. I think a 17x4 sounds good, it swung the 16x8 I had pretty well. I couldn't test for long, the area wasn't well ventilated. Like I said, I really didn't expect it to fire off so easy...
I can't seem to find the instructions online. This 4-stroke is different from my O.S. 91; it has a port on the bottom of the crank case. Where should a fuel line on that lead? I started to put it on the pressure feed for the tank, but I noticed as I turn it over, the fuel moves back and forth. What's it for?
I was suprised, I didn't really expect it to just run. Under the valve cover was very clean, but I decided to try and flush it out before I ran it. Lost of corrosion came out of the main bearing closest to the prop, basically orange fuel. So I flushed it with some old fuel(maybe 2 months old) and cleared it. The one thing I really don't like about this motor so far is the glow plug location/orientation. I just happen to have a very short glow ignitor, and it still nearly touches the prop. I tried to rig a smaller, but very old, remote glow system, no luck. So I plan to buy a new one like anther I have on a P-40, so that's not really that bad. I think a 17x4 sounds good, it swung the 16x8 I had pretty well. I couldn't test for long, the area wasn't well ventilated. Like I said, I really didn't expect it to fire off so easy... I can't seem to find the instructions online. This 4-stroke is different from my O.S. 91; it has a port on the bottom of the crank case. Where should a fuel line on that lead? I started to put it on the pressure feed for the tank, but I noticed as I turn it over, the fuel moves back and forth. What's it for?
08-20-2007, 11:30 PM
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RE: Prop Selection
Oh yeah! When I pulled the plug it had in it, it was a 2 stroke plug(short) Should it have a longer 4 stroke plug? It runs with a 2 stroke plug... [X(]
08-22-2007, 02:16 PM
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RE: Prop Selection
Does anyone in here know anything about Enyas, or should I check the scale section? I'm learning more as I dig into them, and it seems they're better suited to scale or light sport applications.
08-25-2007, 08:07 AM
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RE: Prop Selection
The forums are listed under "Airplanes", then "Helis", then "Boats" , then "Engines". low engines is in the Engines area.
The nipple on the bottom of the case is probably a vent to allow excess oil a way to get out of the crankcase. That is what it is on Saitos.
The nipple on the bottom of the case is probably a vent to allow excess oil a way to get out of the crankcase. That is what it is on Saitos.
08-26-2007, 12:49 AM
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RE: Prop Selection
Yup, found it not long after I posted. I thought it'd be right under airplanes...thanks though. I now know it is a crank case vent. I wasn't sure because the O.S. 4 stroke I already had doesn't have one...
