Notices
Glow Engines Discuss RC glow engines

Welcome to Club SAITO !

Old 01-25-2023, 02:36 AM
  #53476  
1200SportsterRider
Senior Member
 
1200SportsterRider's Avatar
 
Join Date: Dec 2019
Location: Virginia
Posts: 789
Likes: 0
Received 22 Likes on 22 Posts
Default

Uh Oh, the Universal sign of ill will.
Old 01-25-2023, 04:01 AM
  #53477  
Jesse Open
 
Jesse Open's Avatar
 
Join Date: Mar 2018
Location: 30 Miles North of Canada Border
Posts: 3,319
Received 60 Likes on 52 Posts
Default

Originally Posted by 1200SportsterRider View Post
Uh Oh, the Universal sign of ill will.
Often given after someone has offered an arm and a leg.
Old 01-25-2023, 08:30 AM
  #53478  
1200SportsterRider
Senior Member
 
1200SportsterRider's Avatar
 
Join Date: Dec 2019
Location: Virginia
Posts: 789
Likes: 0
Received 22 Likes on 22 Posts
Default

Saito 125 with CHI
Temp===35 F and raining
Fuel====Wildcat 10% with 18% full syn.
Prop====Master Airscrew 15 x 7 three blade
Plug====CHI
Ignition set at 33 btdc
Exhaust===stock 13mm cast.
Max rpm at full throttle==8,550
Idle perfect at 3,000 rpm. The 125 ran eerily smooth at all rpm. It smokes a little at about 5,500.

Wrong pictures, how do you remove them.


About 6,000 rpm

One correct picture

Last edited by 1200SportsterRider; 01-26-2023 at 03:43 AM. Reason: Add picture
Old 01-25-2023, 11:40 AM
  #53479  
the Wasp
My Feedback: (1)
 
Join Date: Sep 2003
Location: VT
Posts: 5,197
Likes: 0
Received 37 Likes on 35 Posts
Default

Dave, to remove the pic, edit and highlight the whole pic then hit the back key.

Jim
Old 01-25-2023, 01:21 PM
  #53480  
1200SportsterRider
Senior Member
 
1200SportsterRider's Avatar
 
Join Date: Dec 2019
Location: Virginia
Posts: 789
Likes: 0
Received 22 Likes on 22 Posts
Default

Thankyou James.
Old 01-25-2023, 05:40 PM
  #53481  
the Wasp
My Feedback: (1)
 
Join Date: Sep 2003
Location: VT
Posts: 5,197
Likes: 0
Received 37 Likes on 35 Posts
Default

mounted and ready to go.

well I received my Spanish Arbor tonight and I cleaned both the chuck & arbor with denatured alcohol. mounted it and the chuck is ready for drilling. I will use it tonight. just got to make sure it's centered to the head chuck.
I talked to my 12th grade machine shop teacher the other day about mounting it. he told me there is a new method of mounting arbors that is less stressful to the chuck. you simply clean the chuck and arbor, let dry. install the arbor in the chuck and twist the arbor in the chuck till it turns smooth yet is tight. then just grab hold of the chuck and snap the arbor's tang down hard on some hard wood or something hard.
any-hoo. my Spanish arbor <LOL looks pretty good.

EDIT. I named the chuck Bill. it's a good name!

Last edited by the Wasp; 01-25-2023 at 06:02 PM.
Old 01-25-2023, 06:01 PM
  #53482  
the Wasp
My Feedback: (1)
 
Join Date: Sep 2003
Location: VT
Posts: 5,197
Likes: 0
Received 37 Likes on 35 Posts
Default

Dave. you are very well welcomed !!

Jim
Old 01-25-2023, 07:28 PM
  #53483  
Jesse Open
 
Jesse Open's Avatar
 
Join Date: Mar 2018
Location: 30 Miles North of Canada Border
Posts: 3,319
Received 60 Likes on 52 Posts
Default

Looks great Jim. Fine job.
Old 01-26-2023, 03:50 AM
  #53484  
1200SportsterRider
Senior Member
 
1200SportsterRider's Avatar
 
Join Date: Dec 2019
Location: Virginia
Posts: 789
Likes: 0
Received 22 Likes on 22 Posts
Default

Yesterday I couldn't get the 125-A below 3,000 rpm. last night I remembered that it came without a barrel spring, so I added one. I removed the carb and it would only close to within about 1/32". I removed the barrel spring and now it closes all the way. I even turned the barrel spring around and no go. There is almost no side motion, so I'm leaving it as is.
Old 01-26-2023, 06:00 AM
  #53485  
Glowgeek
 
Join Date: Feb 2016
Posts: 3,201
Received 48 Likes on 48 Posts
Default

On the way to my abode. An FA115 should over power it sufficiently........maybe gas converted, maybe not. I won't decide until it's weighed and CG'd.



And I still have all my appendages! ........well, at least I'm not missing any more than before I bought it.

Last edited by Glowgeek; 01-26-2023 at 08:01 AM.
Old 01-26-2023, 08:16 AM
  #53486  
Jesse Open
 
Jesse Open's Avatar
 
Join Date: Mar 2018
Location: 30 Miles North of Canada Border
Posts: 3,319
Received 60 Likes on 52 Posts
Default

Originally Posted by 1200SportsterRider View Post
Yesterday I couldn't get the 125-A below 3,000 rpm. last night I remembered that it came without a barrel spring, so I added one. I removed the carb and it would only close to within about 1/32". I removed the barrel spring and now it closes all the way. I even turned the barrel spring around and no go. There is almost no side motion, so I'm leaving it as is.
Yep, The springs don't fit well in those carbs that came without. Been there, tried it too. Same result

They simply don't need the spring.


Lonnie, Way to go! You snagged a rare gem there.

James, Lonnie is still intact (mostly )


Very happy with every FA-125 I have owned. As well as every FG-20 that I have restored to methanol fuel. Doing a brand new FG-21 now.

Home brew 16 mm staight pipe, Saito FA-125.

Going on a fresh built Dragon Lady

Last edited by Jesse Open; 01-26-2023 at 01:17 PM.
Old 01-26-2023, 04:08 PM
  #53487  
Slider23
Junior Member
 
Join Date: Mar 2020
Posts: 3
Received 0 Likes on 0 Posts
Default

Hey guys,
I have a SAITO FA125 in my H9 Christen Eagle, swinging a 15x8 master screw prop. I'm running 15% nitro and 17% Klotz mix. The engine has had about 6 flights since run in and has been performing exceptionally well. Yesterday I had 3 really good flights not overly pushing the engine which produces a light smoke trail. On my fourth flight about 3-4 mins in I was on the downwind leg of a circuit when the engine started to make a horrible screeching noise, I backed it off to idle and immediately landed and shut the engine down.
A visual inspection has given no clues as to what has happened, the cowl is not touching the back of the spinner, there doesn't appear to be any oil or fuel leaks that I can see. I let the engine cool down and then fired it up but the noise was still there and seems to be coming from the front of the motor.... Has this occurred to anyone else? I'm at a loss guys so any advice is greatly appreciated.
Old 01-26-2023, 07:18 PM
  #53488  
the Wasp
My Feedback: (1)
 
Join Date: Sep 2003
Location: VT
Posts: 5,197
Likes: 0
Received 37 Likes on 35 Posts
Default

Originally Posted by Slider23 View Post
Hey guys,
I have a SAITO FA125 in my H9 Christen Eagle, swinging a 15x8 master screw prop. I'm running 15% nitro and 17% Klotz mix. The engine has had about 6 flights since run in and has been performing exceptionally well. Yesterday I had 3 really good flights not overly pushing the engine which produces a light smoke trail. On my fourth flight about 3-4 mins in I was on the downwind leg of a circuit when the engine started to make a horrible screeching noise, I backed it off to idle and immediately landed and shut the engine down.
A visual inspection has given no clues as to what has happened, the cowl is not touching the back of the spinner, there doesn't appear to be any oil or fuel leaks that I can see. I let the engine cool down and then fired it up but the noise was still there and seems to be coming from the front of the motor.... Has this occurred to anyone else? I'm at a loss guys so any advice is greatly appreciated.
I believe Glowgeak had "something" like this happen to his Saito just some 3 weeks ago. it was the Prop Drive Hub rubbing on the case as I remember, I would bet $5 that is your problem LOL
Jim
The following users liked this post:
Slider23 (01-27-2023)
Old 01-26-2023, 07:26 PM
  #53489  
the Wasp
My Feedback: (1)
 
Join Date: Sep 2003
Location: VT
Posts: 5,197
Likes: 0
Received 37 Likes on 35 Posts
Default

Originally Posted by Jesse Open View Post
Yep, The springs don't fit well in those carbs that came without. Been there, tried it too. Same result

They simply don't need the spring.


Lonnie, Way to go! You snagged a rare gem there.

James, Lonnie is still intact (mostly )


Very happy with every FA-125 I have owned. As well as every FG-20 that I have restored to methanol fuel. Doing a brand new FG-21 now.

Home brew 16 mm staight pipe, Saito FA-125.

Going on a fresh built Dragon Lady
OH you did not say that did you. you know that Pete is just peaking around the corner. LOL

Jim
Old 01-26-2023, 07:39 PM
  #53490  
the Wasp
My Feedback: (1)
 
Join Date: Sep 2003
Location: VT
Posts: 5,197
Likes: 0
Received 37 Likes on 35 Posts
Default

Lonnie. good going. they are very well made planes.
engines. food for thought. I had that OS 61fx in my ShoeString. the Saito 100 less muffle weighs the same as that FX less muffler (550 grams). the 115 weighs only 36 grams more than the 100
do you have a twin that will fit in it.

Jim
Old 01-26-2023, 10:12 PM
  #53491  
Slider23
Junior Member
 
Join Date: Mar 2020
Posts: 3
Received 0 Likes on 0 Posts
Default

Cheers mate. Can’t find that post but assuming if it is the issue then I have over tightened the prop…..correct?
Old 01-27-2023, 12:28 AM
  #53492  
Slider23
Junior Member
 
Join Date: Mar 2020
Posts: 3
Received 0 Likes on 0 Posts
Default

Originally Posted by the Wasp View Post
I believe Glowgeak had "something" like this happen to his Saito just some 3 weeks ago. it was the Prop Drive Hub rubbing on the case as I remember, I would bet $5 that is your problem LOL
Jim

assuming if this is my issue it could be an over tightened prop?
Old 01-27-2023, 03:24 AM
  #53493  
Glowgeek
 
Join Date: Feb 2016
Posts: 3,201
Received 48 Likes on 48 Posts
Default

Originally Posted by Slider23 View Post
Cheers mate. Can’t find that post but assuming if it is the issue then I have over tightened the prop…..correct?
I'm the one that had the screeching noise. It's very likely that your prop was under tightened and is slipping on the prop drive. If not, then your prop drive could be slipping on the crankshaft as mine was. Made a horrible screeching noise.

To fix mine I removed the prop drive with a puller, cleaned the parts with brake cleaner, reassembled everything and used a disposable plastic prop while tightening the bejesus out of it. Problem solved.



Last edited by Glowgeek; 01-27-2023 at 03:42 AM.
The following users liked this post:
Slider23 (01-27-2023)
Old 01-27-2023, 03:39 AM
  #53494  
1200SportsterRider
Senior Member
 
1200SportsterRider's Avatar
 
Join Date: Dec 2019
Location: Virginia
Posts: 789
Likes: 0
Received 22 Likes on 22 Posts
Default

I ordered a couple of these Xoar PJM props in 15 x 8 size for the next 125-a run, it should go north of 9,000 rpm.
The Shoe String looks cool and I love that pipe.

Last edited by 1200SportsterRider; 01-27-2023 at 03:41 AM. Reason: Add content
Old 01-27-2023, 06:03 AM
  #53495  
Jesse Open
 
Jesse Open's Avatar
 
Join Date: Mar 2018
Location: 30 Miles North of Canada Border
Posts: 3,319
Received 60 Likes on 52 Posts
Default

Those Xoar props are a work of art!
Old Yesterday, 06:16 PM
  #53496  
Glowgeek
 
Join Date: Feb 2016
Posts: 3,201
Received 48 Likes on 48 Posts
Default

Originally Posted by the Wasp View Post
Lonnie. good going. they are very well made planes.
engines. food for thought. I had that OS 61fx in my ShoeString. the Saito 100 less muffle weighs the same as that FX less muffler (550 grams). the 115 weighs only 36 grams more than the 100
do you have a twin that will fit in it.

Jim
No twins in any of my planes, by choice. I'm sure your Shoe zipped along fairly well with that 61fx slobber slinger.

I've seen a few GP Shoestring 60 ARFs at flyins but only saw one fly. Was talking to the pilot about his, tried to buy it from him actually. His had a 91fx with a mousse can muffler, said he'd never sell it. He invited me to chat with him while he flew it. I was very impressed with how it handled aerobatics and it was fast as *!$#@. I casually asked how well it knife edged and he said, "Watch this". He pulled it out of an outside loop to level inverted flight, snap rolled it 1-1/4 into a perfect knife edge and blasted down the runway at what I guess was 100+ mph and dumb thumbed it into the runway. I was speechless, he was crushed.

Anyway, that was 4 or 5 yrs ago. Ever since seeing how that thing flew it's been on my list of must have planes. Took a while to find one NIB and reasonably priced. It'll go into my pile of "after retirement" kits and ARFs, at least until I crash a couple of my current flyers.

Last edited by Glowgeek; Today at 03:56 AM.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.