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Old 02-23-2020, 10:19 AM
  #45226  
Quikturn
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On my way to a successful rebuild. I use a modified inexpensive puller and clamps to hold it in place. The ends of the clamps have been ground to a taper to allow more room to get into the groove of the drive flange. Once in place, I tighten it to give it some tension, add a little heat to the flange with a propane torch and off it comes.



Last edited by Quikturn; 02-23-2020 at 11:26 AM.
Old 02-23-2020, 11:10 AM
  #45227  
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I had to mod some cheap harbor freight pullers by grinding the jaws down to replace the bearings in my drill press that developed a God awful screech.
The pullers will need to be ground down even more to pull a engine drive washer.

For $20 I don't care if I ruin the pullers.

Ken
Old 02-23-2020, 11:38 AM
  #45228  
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Default APC Prop Fiasco!

I finally figured out why my Modded High Compression fa82 would spin an apc 14x6 at 9500 some days and 9800 on others. This has been driving me nuts for months! I didn't know it but it turns out I have two different14x6 apc props, a sport and a pattern. After test running engines I typically treat them with after run oil, take the prop off and throw it in my prop box and seal the engine in a zip lock bag. I guess I was pulling out different 14x6 props from the prop box each time I ran the 82....lol

The apc pattern prop has sightly less pitch and a slightly thicker hub than the sport. Apparently that's enough difference to cause a 300 rpm disparity on both the fa82 and the fa91.

Got to admit, I'm not the sharpest hoe in the shed these days.

Last edited by Glowgeek; 02-23-2020 at 11:47 AM.
Old 02-23-2020, 01:00 PM
  #45229  
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Hyjinx hope you enjoy your package.
Old 02-23-2020, 01:11 PM
  #45230  
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Originally Posted by erieqc
Hyjinx hope you enjoy your package.
Be excited to see that little project whan I get home from NM. Planning on gassin a O.S. (caugh) 160 twin with it for a 1/4 scale J Cub.
Thanks Erieqc
Old 02-23-2020, 05:40 PM
  #45231  
the Wasp
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Originally Posted by Glowgeek
I finally figured out why my Modded High Compression fa82 would spin an apc 14x6 at 9500 some days and 9800 on others. This has been driving me nuts for months! I didn't know it but it turns out I have two different14x6 apc props, a sport and a pattern. After test running engines I typically treat them with after run oil, take the prop off and throw it in my prop box and seal the engine in a zip lock bag. I guess I was pulling out different 14x6 props from the prop box each time I ran the 82....lol

The apc pattern prop has sightly less pitch and a slightly thicker hub than the sport. Apparently that's enough difference to cause a 300 rpm disparity on both the fa82 and the fa91.
Got to admit, I'm not the sharpest hoe in the shed these days.
that's funny, but I wont laugh, cause I have done enough funny things

Jim
Old 02-23-2020, 06:25 PM
  #45232  
Quikturn
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Originally Posted by Glowgeek
I finally figured out why my Modded High Compression fa82 would spin an apc 14x6 at 9500 some days and 9800 on others. This has been driving me nuts for months! I didn't know it but it turns out I have two different14x6 apc props, a sport and a pattern. After test running engines I typically treat them with after run oil, take the prop off and throw it in my prop box and seal the engine in a zip lock bag. I guess I was pulling out different 14x6 props from the prop box each time I ran the 82....lol

The apc pattern prop has sightly less pitch and a slightly thicker hub than the sport. Apparently that's enough difference to cause a 300 rpm disparity on both the fa82 and the fa91.

Got to admit, I'm not the sharpest hoe in the shed these days.
At least you werenít using an electric prop. That could have been exciting. 😆
Old 02-24-2020, 07:14 AM
  #45233  
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Originally Posted by Quikturn
At least you werenít using an electric prop. That could have been exciting. 😆
Look what showed up at the house while me and the misses were sunning🤗
Thanks Bill!

What a Guy!
Old 02-24-2020, 08:23 AM
  #45234  
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Looks familiar.

That little bugger sure gets around!

Look up the little fiber insulators that isolate the screws from engine heat.
Old 02-24-2020, 08:56 AM
  #45235  
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Originally Posted by Jesse Open
Looks familiar.

That little bugger sure gets around!

Look up the little fiber insulators that isolate the screws from engine heat.
Just like Gods love....nothing satisfys like unmerited kindness. The world is a circle, everything comes back around.
Except that Rascal from Australia LOL
Old 02-24-2020, 01:03 PM
  #45236  
the Wasp
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Garry, did you ever try testing one of those gasser cabs with burning glow fuel ??

Jim
Old 02-24-2020, 01:54 PM
  #45237  
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I haven't tried it Jim but the metering would be off. The engine would go lean at high idle and midrange. Exactly the opposite when attempting to use a glow carb for gas.

Besides, what would be gained by running glow fuel through a gasser carb? I'm pretty happy with glow carb a/f mixing and metering.

Last edited by Glowgeek; 02-24-2020 at 01:59 PM.
Old 02-24-2020, 07:43 PM
  #45238  
the Wasp
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Originally Posted by Glowgeek;12585191[b
]I haven't tried it Jim but the metering would be off. The engine would go lean at high idle and midrange. Exactly the opposite when attempting to use a glow carb for gas.

Besides, what would be gained by running glow fuel through a gasser carb? I'm pretty happy with glow carb a/f mixing and metering.
1) that is why I asked.
2) I like the diaphragm thingy idea, that's all

Jim
Old 02-25-2020, 04:56 AM
  #45239  
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Originally Posted by the Wasp
Garry, did you ever try testing one of those gasser cabs with burning glow fuel ??

Jim

Well, since you asked.

Not with the Saito pumper but on many larger engines. Starting in 1964 with West Bend and McCulloch kart engines. Back then you simply drilled out the needle seats to a size that was determined by experimentation. Some diaphragms held up better than others on alky but none lasted as long as they would on gaspoline. Many years laterwhen my son was racing in four stroke karts we did likewise with the Briggs carb. It worked well and didnt seem to mind the alky at all, the Briggs was also a pumper carb with a diaphragm that appeared to be Mylar. In the early 1980s I converted several weedwhackers and chainsaw engines to aircraft. In time many of those were converted to alky. Much like the earlier Macs and West Bends, the diaphragms were good for about one season.
If you really want the best fuel system for glow, YS is hard to beat. Far better to push fuel than pull it.
Old 02-25-2020, 05:39 AM
  #45240  
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I remember the owner of my now gone LHS did an experiment. He took the glow plug from an OS gasser and discovered a KB and several other glow engines would run on gasoline without any other modifications other than the glow plug. The only difference was the needle valve settings. It makes sense it would work the other way around. The only danger I can think of would be the long term affect of the fuel on "O" rings and any other rubber like a diaphragm. I remember gasohol was a no, no in my old TR-3A and had much the same affect as Dot 3 brake fluid had on the DOT 4 fluid system.
Old 02-25-2020, 09:40 AM
  #45241  
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FlyerInOKC, guys were mixing 1/3 off the shelf 10% glow fuel to 2/3 gas in 2st plane engine with only usig a glow plug, they were not adding oil. they ended up flying a lighter engine with no ignition, no battery that had more power than gas. the thing is you could have mixed at half to half, see my link.

GAS/GLOW HOW TO....


thank you Gary, you know I was going to try to run the Glow/Gas mix in my Zenoah 20 Heli engine (sorry Pete ), but life got in my way for a few years, so it never happened

Jim

Last edited by the Wasp; 02-25-2020 at 09:43 AM.
Old 02-25-2020, 10:59 AM
  #45242  
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Gary, do you know anything about the dye that is used in our off the shelf glow fuels ?
my number one question > is this dye flammable ?
number 2 > rather flammable or not wouldn't our engines run batter without dye ? I ask this question that way because surely if the dye is flammable it does not produce the power of Methanol and Nitro.

what's the jig of it ?

thank you buddy !
Jim
Old 02-25-2020, 12:24 PM
  #45243  
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Originally Posted by the Wasp
FlyerInOKC, guys were mixing 1/3 off the shelf 10% glow fuel to 2/3 gas in 2st plane engine with only usig a glow plug, they were not adding oil. they ended up flying a lighter engine with no ignition, no battery that had more power than gas. the thing is you could have mixed at half to half, see my link.

GAS/GLOW HOW TO....


thank you Gary, you know I was going to try to run the Glow/Gas mix in my Zenoah 20 Heli engine (sorry Pete ), but life got in my way for a few years, so it never happened

Jim
OK Jim, I see what's going on there. They're running gassers on glow ignition by using 33% glow fuel in their gas. That's a lot different than your previous question about running gas in a glow engine, totally different carb.
Old 02-25-2020, 12:35 PM
  #45244  
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Originally Posted by the Wasp
Gary, do you know anything about the dye that is used in our off the shelf glow fuels ?
my number one question > is this dye flammable ?
number 2 > rather flammable or not wouldn't our engines run batter without dye ? I ask this question that way because surely if the dye is flammable it does not produce the power of Methanol and Nitro.

what's the jig of it ?

thank you buddy !
Jim

I highly doubt a few drops of die per gallon matter. They probably use an ounce of die per 55 gallon drum.
Old 02-25-2020, 06:06 PM
  #45245  
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Originally Posted by Glowgeek
OK Jim, I see what's going on there. They're running gassers on glow ignition by using 33% glow fuel in their gas. That's a lot different than your previous question about running gas in a glow engine, totally different carb.

yes, I only posted that in reply to FlyerInOKC post. those guys in my link were using glow fuel plugs like the OS 8..
I asked Gary about running glow fuel threw the gas carb just for straight glow in our glow engines (no gas) so a glow engine could have the regulator..

too add, if you search YouTube you will find many people outside the USA running their glow engines on gas with the stock glow carb, many of these guys are doing this with larger glow Heli engines like the OS 91 and OS 105.

I do have some Wild Cat 30% Heli fuel 20% synthetic, I could mix it half & half with gas, add 10% synthetic and burn it in my 2St glow engines at 15% nitro , it should work in my K&B 100, it's a true ABC engine so I do not know how well it would hold up cause it would run hotter.

I can see how a glow engine with a glow carb could run on gas, just lean the needs more, however running glow fuel threw a gas cab is something different.

Jim

Old 02-25-2020, 06:14 PM
  #45246  
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Originally Posted by acdii
I highly doubt a few drops of die per gallon matter. They probably use an ounce of die per 55 gallon drum.
Oh, now that's something different
isn't science something special.

thanks !!! cause I don't know much about dye, as you can tell LOL
Jim
Old 02-25-2020, 07:06 PM
  #45247  
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The beauty of plans is they don't need to be dead accurate, within 1/32" is close enough for the big planes I am working on. I finally got the plans for the Top Flite Giant Corsair and Giant P-47 upsized from the PDF manual to the proper size. Another forum member gave me the size for the Corsair and figured out where to crop it and upscale it to the correct size and every thing matched. Guessed at the P-47 on the first round and the wing plans were too wide, so did some measurements and shrunk it on an estimate from the wing lengths and it came out dead on, the fuse plans though, I struggled with, the length was the easy part, the height though, is 36 1/2" and it took several tries to get it right and found it was constrained height and width were locked, once I removed the constraint it finally came out close enough. I then had to trim 9/16" off the overall height so it can be printed on a 36" printer. Going to get them printed out maybe tomorrow.

Looks like I will have 2 short kits available soon, hopefully can sell a few, and cover the cost of a tube and power supply upgrade. I wonder what size Satio can power these two planes.
Old 02-26-2020, 08:21 AM
  #45248  
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Originally Posted by Quikturn
Thanks for the tips on muffler cleaning. I think it turned out great. I must say the drill chuck method is uniquely suited to the old style saito muffler.

I started out with 300 grit and wasn’t getting much done. It also made the nicer areas very shiny. So I went to 100 grit to remove more material and scuff it more. Followed up with steel wool and wholaa!




Its a miracle you didn't catch a boatload of criticism!
Folks here seem to think a neat bench is shameful.


Hobbsy probably has a tach reading from an identical prop!

Wildcat no castor fuel of course.

Last edited by Jesse Open; 02-26-2020 at 08:23 AM.
Old 02-26-2020, 09:08 AM
  #45249  
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Ther was a bench in the picture?!
Old 02-26-2020, 09:22 AM
  #45250  
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Originally Posted by FlyerInOKC
Ther was a bench in the picture?!
Hard to tell, but its that thing without all the junk piled on it that we are used to.

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