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Old 06-11-2021, 05:48 PM
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Mike, in my mag it doesn't show a can of spray paint, but it shows a very small plane setting on the kits,

Jim
Old 06-11-2021, 06:13 PM
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Originally Posted by FlyerInOKC
Jim, did you get the pipe finished and mounted?
Mike, I have not been able to work on it till today. my grand daughters come here one at a time so I put it off, but I worked on it today, I can only work on it for an half hour at a time because it's so hot & muggy here I have to get away sweating badly, this new weather has been going on here in Vermont for the last 4 years, it seems to get worse every year. but I got the cowl marked for cutting today and tomorrow I will cut it outside and fit it. I can't wait to start it, it's a 70sz Heli engine so it has the larger Heli carb, and I have a Heli regulator but I don't know if the regulator will fit in the cowl yet, ether way, regulator or not the Heli carb is a much better carb than a plane carb because the Heli carb will idle for 5 minutes and then accelerate without stumbling.
I have an OS 50 Hyper Heli engine in my Worlds Models P-40, iy runs fantastic! it has the same type carb as the 70 but smaller, it turns an APC 11-8 at 12,800 with a large GMS 47 muffler, this GMS muffler in about 1mm shorter than the OS 61fx muffler. the guys in the club say it's a 100MPH plane

Jim
Old 06-11-2021, 07:26 PM
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Nice! Sounds like you found a winning combination. Treasure the time you get with the granddaughters, when they get older the have a lot less time,.
Old 06-12-2021, 03:33 AM
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Isn't that the truth.
Old 06-12-2021, 04:34 AM
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Hello,

I purchased a Keleo exhaust for my Saito 170R3 but browsing the internet this morning I heard a guy running a Morris' Mini Motors exhaust ring for a 200r3 and it sounded way better. Deeper around the rpm range. I know it is a slightly different motor but similar. Does anyone have a direct comparison video of Keleo Exhaust vs Morris' Mini Motors Exhaust with the same camera and location setup to get a good comparison?

Thanks
Old 06-12-2021, 04:36 AM
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It would sound deeper being larger and turning a larger prop.
Old 06-12-2021, 04:46 AM
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There is a bit of a premium buying the Morris ring over the Keleo, on one engine it worked out to be near 25%.
Old 06-12-2021, 06:46 AM
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Originally Posted by 1200SportsterRider
It would sound deeper being larger and turning a larger prop.
Man 5cc does that...I did notice that the exhaust ring chamber is larger, probably having more of an affect than the 5cc difference.

Originally Posted by FlyerInOKC
There is a bit of a premium buying the Morris ring over the Keleo, on one engine it worked out to be near 25%.
Yeah it is higher.


Searching more I found a Keleo 200r3 video and it sounds like the 170, but a different camera and environment. I think based on seeing pictures it is the chamber allowing the better exhaust note on the Morris exhaust ring.
Old 06-12-2021, 05:31 PM
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Mike, if you didn't see the mistake, the AutoGyro's right wing is on backwards, if you look at the left wing it's easy to see the foil

oops, BTW, I didn't get to work on the ShoeString today, both granddaughters came today, I was the mean pirate, I never got my gold today, boy am I beat!

Jim

Last edited by the Wasp; 06-12-2021 at 05:36 PM.
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Old 06-12-2021, 08:11 PM
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Grandkids can wear you out in a hurry!
Old 06-13-2021, 04:38 AM
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Originally Posted by FlyerInOKC
Grandkids can wear you out in a hurry!
Sure wish I could get one or two. That would be a good way to get tired. Savor every moment. And teach them how to swap bearings in Saitos.
Old 06-13-2021, 06:27 AM
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There you go!
Old 06-13-2021, 09:51 AM
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Originally Posted by Hyjinx
Sure wish I could get one or two. That would be a good way to get tired. Savor every moment. And teach them how to swap bearings in Saitos.

I have several, very nice scratch built planes to moe along. VERY NICE, the kind you likr.
Please give me a call! Cap'n Crunch and Hobbsy both have my phone number.



These are just a few. Several more.
Old 06-13-2021, 04:41 PM
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Welcome back Gary, you've been missed!
Old 06-13-2021, 06:33 PM
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Gary, how are you doing? it's been a while.
what size & wing span is the #31?

Jim
Old 06-13-2021, 07:31 PM
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Good to hear from you again Gary! Someone has to keep these scalawags in line!
Old 06-14-2021, 03:26 AM
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Old 06-14-2021, 03:57 PM
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The 115 arrived this am, it's good we decided to take a look, it spent a lot of time at very high rpm, the rear bearings is worn enough that you can see the crank move up and down when the crankpin is at 90 degrees to bore center. Both sides of the cam lobes have dents with the leading side being worse. It now ears new Boca Bearings with the front being double sealed the rear open. I had three new cams and new lifters. I think I'll do the rockers too if I have them. Gary had sent me a package of piston rings marked 120 but there were three 115 rings in it. I suspect the 115 shares it's bore with some other engine. It has some super compression. It turns oh so smooth.


Old 06-14-2021, 05:37 PM
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Yep, the FA115 has the same 31.7mm bore size as the FA125/FG20 and the same 24mm stroke as the FA91S. The 115 is the 3rd most over square Saito single, the 82 takes top prize for bragging rights in that category followed by the 62.

Last edited by Glowgeek; 06-15-2021 at 03:17 AM.
Old 06-14-2021, 06:15 PM
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THANK YOU!!! It sounds like the smartest thing I did was send it to you to be checked out before even thinking about running it!
Old 06-15-2021, 01:33 AM
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The engine has a B on the right lug, mine has a A, this one's later. The valves don't leak so I'm going to touch them It should be good for a long time. I am going to clean the carbon out of the muffler outlet ports also. I took a picture of the cam dents but it didn't take for some reason. You're very welcome Mike. I have an extra long appointment at Radiology today, the beginning of my "come down" as they call it. They're going to get more specific as to where they aim the beam.
Old 06-15-2021, 03:23 AM
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Mike, sounds like you're going to have a dandy 115 when Dave gets done with it. No surprise there. Perfect for 60 size warbirds and aerobats.
Old 06-15-2021, 04:10 AM
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Dave, replacing rocker arms? Hmm, don't guess I've ever seen one wore enough to worry about. Seems there is always plenty of threading available for lash adjustment and I've not yet seen the rocker hole or pin wore enough for excessove slop (wiggle) to occur there. Maybe I have never seen a "super" high time engine?
Old 06-15-2021, 04:25 AM
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Originally Posted by Glowgeek
Mike, sounds like you're going to have a dandy 115 when Dave gets done with it. No surprise there. Perfect for 60 size warbirds and aerobats.
I have to agree with you! When Dave offered to replace the bearings I knew I would get an engine as close to new as it would ever be. Now I wish I had sent him a little more "beer" money with the return postage for incidentals. There a number of you guys in this thread I wouldn't have a second thought about having you work on a Saito for me and you are one of them. I still think of this thread as Saito University.
Old 06-15-2021, 08:00 AM
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Cam shots:



Last edited by 1200SportsterRider; 06-15-2021 at 08:06 AM. Reason: Add content.

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