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Old 12-30-2016, 03:00 PM
  #32876  
the pope
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Originally Posted by blw
Pete- After the Indy demonstration of pansy behavior we call them Formula None over here. Well, the Michelin guys at least.

Don't you drive taxis at night? Something dangerous like that? Seems I recall a story about some guy pulling a knife or gun on you.
Yes while I love F1 that fiasco was very embarrassing and I thought that F1 in the USA would be gone forever and I wouldnt have blamed them one bit . I think Ralph S. still has a sore back and brother Michael a sore head !The current US track is a beauty , I give the indy car drivers their due , they have big ones for sure .
Old 12-30-2016, 04:15 PM
  #32877  
gary3173
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I run Stihl Ultra in all of mine, 50-1 ratio always run and start great. The instructions are in error to run 20-1 most engines plug up with to much oil
Old 12-30-2016, 04:32 PM
  #32878  
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No, they aren't in error, run 50-1 in a Saito FG and you will soon lose it. It is a Glow motor converted to gas, and it is a 4 stroke to boot. Never think you can run 2 stroke fuel in a 4 stroke and think it will last. Even at 16-1 ratio, there is very little oil in the crank, and the exhaust leaves very little residue.

Follow the instructions in the manual to the letter and the engine will last a long time. I am very careful not to get the 2 stoke fuel mixed up with the Saito fuel, don't want to damage the engine.

When I broke in the FG-11 at 20-1 there was very little coming out the crank case vent, and that had me concerned so I went 16-1 and saw some oil, and that made me feel better. I use a scavenge pipe attached to the muffler to suck the residue out and away from the plane so all I need to clean up after a few hours flight is a small bit on the landing gear.
Old 12-30-2016, 05:51 PM
  #32879  
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Sounds like you have some good experience with Saito FG Engines. This is my first and as you know it's a healthy investment . I think as you stated, following the manual is the best advice to have a engine that lasts. I have ordered a Keleo exhaust ring for the FG60R3 I see as you mentioned that there is a breather that vents excess oil from the crankcase. Is it possible since the Keleo exhaust ring has a smoke tap to attach the crank case vent hose to the tap? That would been a great way to get rid of excess oil with out a lot of mess.



Originally Posted by acdii
No, they aren't in error, run 50-1 in a Saito FG and you will soon lose it. It is a Glow motor converted to gas, and it is a 4 stroke to boot. Never think you can run 2 stroke fuel in a 4 stroke and think it will last. Even at 16-1 ratio, there is very little oil in the crank, and the exhaust leaves very little residue.

Follow the instructions in the manual to the letter and the engine will last a long time. I am very careful not to get the 2 stoke fuel mixed up with the Saito fuel, don't want to damage the engine.

When I broke in the FG-11 at 20-1 there was very little coming out the crank case vent, and that had me concerned so I went 16-1 and saw some oil, and that made me feel better. I use a scavenge pipe attached to the muffler to suck the residue out and away from the plane so all I need to clean up after a few hours flight is a small bit on the landing gear.
Old 12-31-2016, 04:01 AM
  #32880  
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That 50 to 1 mixture is for engines like Stihl engines that have all needle bearings on the crank and rod..

PS, the FG 11 is slightly larger at .66 cu. inch.

Last edited by Hobbsy; 12-31-2016 at 04:03 AM.
Old 12-31-2016, 08:09 AM
  #32881  
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Originally Posted by drsugarbeet
Sounds like you have some good experience with Saito FG Engines. This is my first and as you know it's a healthy investment . I think as you stated, following the manual is the best advice to have a engine that lasts. I have ordered a Keleo exhaust ring for the FG60R3 I see as you mentioned that there is a breather that vents excess oil from the crankcase. Is it possible since the Keleo exhaust ring has a smoke tap to attach the crank case vent hose to the tap? That would been a great way to get rid of excess oil with out a lot of mess.

That wouldnt work since smoke oil is pumped into the exhaust, and the crankcase needs to breath freely. What I did was take some soft brass tubing and strapped it to the muffle with the end cut at an angle in the exhaust stream, then connected a fuel line between it and the crankcase nipple. The angle is facing away from the end of the muffler so that the exhaust stream creates a sort of a vacuum on the tube to suck the waste oil away yet still allow for the crankcase to suck air in. If you connected the smoke nipple to the crank, you would be forcing exhaust into the crank and the engine would run like crap, if at all.
Old 12-31-2016, 08:13 AM
  #32882  
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Originally Posted by Dave, FormerDairyFarmer
That 50 to 1 mixture is for engines like Stihl engines that have all needle bearings on the crank and rod..

PS, the FG 11 is slightly larger at .66 cu. inch.

Since gas gives less power, I guess that would make them equal in output then. Since it will be several months before I can fly again, I have some time to locate a used Saito 62.
Old 12-31-2016, 09:48 AM
  #32883  
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It has .66 cubic inch by way of an increase in the bore from 1.03" to 1.06", the stroke is .75".
Old 01-01-2017, 12:05 AM
  #32884  
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Looking forward to see what you think of the fg11 dave,wish i'd never sold my 62.
Old 01-01-2017, 12:17 AM
  #32885  
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Originally Posted by blw
Pete- After the Indy demonstration of pansy behavior we call them Formula None over here. Well, the Michelin guys at least.

Don't you drive taxis at night? Something dangerous like that? Seems I recall a story about some guy pulling a knife or gun on you.
I think moto gp does better in europe now than formula one,it's like watching grass grow (unless you got special lighting)

Guns and knives? that was a while back,FNQ from far north queensland (millions of cane toads) used to drive a taxi and had to subdue a couple of passengers i think.Then he shifted to outback new south wales but has'nt changed his moniker to NSW yet and has been missing in action for a while.On a cheeky note if you google "daz the cane toad" a you tube vid comes up that will explain the whole sorry saga bj and pope will have seen it.It's an animated cartoon about what happens to australian cane toads when they get off their own patch,hilarious.

ps...dazza?? you out there ?
Old 01-01-2017, 06:25 AM
  #32886  
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Originally Posted by Old Fart
Looking forward to see what you think of the fg11 dave,wish i'd never sold my 62.
Here you go http://www.horizonhobby.com/product/...3A-bx-saie062b . I have 4 Saitos (100,72,(2)82) and a fellow club member has 4 one of his is a .62 and out of all of them the. 62 starts, idles and runs the best.
Old 01-01-2017, 07:01 AM
  #32887  
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I need some opinions I have a Saito 82 with no home and I was thinking of putting it in a Japanese Zero with a 60" wingspan and a total eight of around 8 pounds. What are your opinions if the 82 will fly this plane in a scale manner?
Old 01-01-2017, 03:34 PM
  #32888  
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Originally Posted by p3arljam
I need some opinions I have a Saito 82 with no home and I was thinking of putting it in a Japanese Zero with a 60" wingspan and a total eight of around 8 pounds. What are your opinions if the 82 will fly this plane in a scale manner?
Yes it will pull an 8 pound plane around just fine. And should be some what scale.
Old 01-01-2017, 05:23 PM
  #32889  
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I think weight will determine if the 82 has adequate power, but from experience would think it has more than enough. I pull anywhere from 8-12.5lbs around behind 91-100's.

FlyerInOKC, sent you a PM.
Old 01-02-2017, 07:22 AM
  #32890  
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Morning all, wishing all here a good 2017. Got a 62 going in a Rascal, inverted, and was considering dumping the crankcase exhaust back into the carb (no velocity stack on the 62). Was wondering if anyone had done this, or if it is a good idea.

T-man49 in Al
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Old 01-02-2017, 07:37 AM
  #32891  
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Originally Posted by triumphman49
Morning all, wishing all here a good 2017. Got a 62 going in a Rascal, inverted, and was considering dumping the crankcase exhaust back into the carb (no velocity stack on the 62). Was wondering if anyone had done this, or if it is a good idea.

T-man49 in Al
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Isn't that basically what OS do? Not sure it is a good idea though. More informed Saito users will know better.

Happy New Year
Old 01-02-2017, 07:51 AM
  #32892  
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I would think it would hurt performance more than help anything. Just scavenge the CC vent to the muffler. This gets the waste oil away from there and puts it where the oil is going to be anyway, in the exhaust stream.
Old 01-02-2017, 08:54 AM
  #32893  
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Never tried it either way, but what comes from that vent is excess oil and other contaminants. Not sure why OS bother with this method other than it would provide a draw on the case vent and ensure it exits. Personally I have no interest to run it through again, although technically it goes straight through the combustion process and back out again.

Tying it to the exhaust may be a better idea. I would recommend a second fitting to prevent that from getting back into the tank via the pressure line.

If you do go with a regular vent line to dump overboard you need to make it as short and/or as large an internal diameter as possible to allow that excess oil and contaminants to exit before the negative pressure as the piston rises from drawing it back in again.
Old 01-02-2017, 09:28 AM
  #32894  
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Had to dig through my old photos from 2 years ago to find it, but here is a scavenging system that works. Look close at the exit of the brass tube. The flow of exhaust out the muffler creates a vacuum in the tubing to suck the waste oil out, but also allows it to breathe freely.

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Old 01-02-2017, 10:07 AM
  #32895  
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This puts the vent juice in the exhaust stream, I doubt that enough venturi effect happens to aid anything. In a larger diameter tube the by pass oil gets bogged down and gurgles back and forth. In a smaller tube it just goes out flowing smoothly above about 4,000 rpm.
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Old 01-02-2017, 10:19 AM
  #32896  
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Is there any point in putting a one-way valve in the vent line so that the crud only goes one way?
Old 01-02-2017, 10:50 AM
  #32897  
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Hey all . . . and WOW. Thanx for all the quick responses. Knew I'd heard of regurgitating the cc waste before, but even thou the 62 is more than needed (Rascal 80EG), last thing wanted is stuttering or sagging at an inopportune time. Took a minute to actually measure various lengths . . . . 5" to carb, 8" to exit bottom cowl, and 10" to tip of muffler. acdii, that's a good looking installation and is very similar to mine, except for a rt angle exhaust adapter. Believe Dave has shown a turbo muffler with cc exhaust tied to it. Seems like the clean way to go. Thanx again.
Old 01-02-2017, 10:57 AM
  #32898  
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Hello Dave, Now that's short and sweet.
Old 01-02-2017, 11:11 AM
  #32899  
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RC_Fanatic, you do not want a check valve in the vent line. Along with allowing excess oil and other contaminants to exit it balances volume as the piston moves up and down. It needs to be open to atmosphere.
Old 01-02-2017, 11:40 AM
  #32900  
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Makes sense, but then the ones that exit in the exhaust stream will suck in dirty air.

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