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Old 04-01-2015, 02:03 AM
  #29026  
SrTelemaster150
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Originally Posted by Hobbsy
Dan, mine is like this one, yours must not be original.
it was brand new. Must be some sort of an "improvement"!
Old 04-01-2015, 03:34 AM
  #29027  
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I'll check and see which letter is on the right lug, although that never seems to have any rhyme or reason to it.
Old 04-01-2015, 03:48 AM
  #29028  
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Hobbsy, my rear bearing had one of the balls tear the cage open and migrate towards one of the others.Previous owner must not have been very mechanical to continue to run it that way. Oddly enough it does not look like there is any damage to the cam or crank teeth.

I get bearings from a local supplier and usually wait till the order is large enough to soften the "Fuel Surcharge" that is added to every purchase. Boca would have been a great option, but for the first time they decided not to exhibit at the Toledo Show next weekend.
Old 04-01-2015, 05:02 AM
  #29029  
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Originally Posted by SrTelemaster150
it was brand new. Must be some sort of an "improvement"!
I have heard that the aluminum ones will slip and cause your problem. Are the steel and aluminum ones interchangeable? I want to convert some of my Saito to CDI. Thanks.

Sincerely, RichardClub Saito #635; Saito 56, 100, 120abc, 130T, 180;
Old 04-01-2015, 08:16 AM
  #29030  
blw
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Originally Posted by FNQFLYER
I use Dubro prop spinners they come in 2 weights and pretty colours and best of all they have an engine guide on the back to tell you what size spinner you should use. And te cone on my Aign starter (a walk a bout one) fits nicely thank you
I use mostly the Great Planes spinners that have the aluminum backplates. I've never had problems with them. It's been a while since I checked out the DuBros but aren't they heavier and cost more? I could be wrong.
Old 04-01-2015, 10:17 AM
  #29031  
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Originally Posted by blw
I use mostly the Great Planes spinners that have the aluminum backplates. I've never had problems with them. It's been a while since I checked out the DuBros but aren't they heavier and cost more? I could be wrong.
I also use the GP spinners. I think that FNQFLYER is referring to the domed prop nuts that I use sometimes instead of spinners. They do come in aluminum (light and come in anodized colors) and brass (heavy), and are internally threaded for different engine prop shafts. But, it's just my take on the discussion.

Sincerely, Richard
Old 04-01-2015, 02:17 PM
  #29032  
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domed prop nuts are on most of my engines.

Ken
Old 04-01-2015, 02:46 PM
  #29033  
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Spaceworm, I use the anodised aluminum spinners from Dubro, as I said they are great for my purposes. I also use the heavier brass versions of the same spinner when I have c of g problems. I also use the domed nuts they sell when I can get them though they can some times be a problem with the cone rubbers on my starter. I am reading with interest all of the problems being discussed about bearing failure. The only problem I have had to date in some 20 years of operating Saitos is to have bearings rust up and in one case (with a second hand engine) I had the bearings start to rotate inside the crankcase.
Old 04-01-2015, 03:56 PM
  #29034  
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Originally Posted by spaceworm
I have heard that the aluminum ones will slip and cause your problem. Are the steel and aluminum ones interchangeable? I want to convert some of my Saito to CDI. Thanks.

Sincerely, RichardClub Saito #635; Saito 56, 100, 120abc, 130T, 180;
I would say so, but where does one get the steel collets?

That's the 8 th conversion I have done & it's the 1st time I've had a problem.

Last edited by SrTelemaster150; 04-03-2015 at 06:47 AM.
Old 04-01-2015, 04:20 PM
  #29035  
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Originally Posted by Old Fart
I take it you mean they fart real good when shot with a 22 or do they sound more like a saito single when they giddyup after being shot with a 22?
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Old 04-01-2015, 05:25 PM
  #29036  
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Originally Posted by acdii
DC or Chicago, whatever!
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Old 04-02-2015, 06:27 PM
  #29037  
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Hello all i am setting up my first Saito engine i am putting a Saito 72 on a Seagull Decatlon with a 68" wingspan. A friend gave me a APC 12 X 6 prop will this prop be okay for the engine?
Old 04-02-2015, 06:43 PM
  #29038  
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The prop range for the .72 is 12x8 to 14x8, the 12x6 is more suited to a .50 or a .56.
Old 04-03-2015, 04:16 AM
  #29039  
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Originally Posted by p3arljam
Hello all i am setting up my first Saito engine i am putting a Saito 72 on a Seagull Decatlon with a 68" wingspan. A friend gave me a APC 12 X 6 prop will this prop be okay for the engine?
P3 welcome the 72 will have enough power for a bit more than scale performance.I fly my 65" blackhorse and pheonix arf deccys with 82's but the first one had a 62 in it,scale performance.I think a good prop like the 14x8 apc would be to much for a 72 my 82 swings a 14x6 apc comfortably,scale speed in the air too.
Old 04-03-2015, 11:03 AM
  #29040  
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I agree Pete, the 14x8 would be a stretch for the .72, perfect for a 1.00.
Old 04-03-2015, 01:48 PM
  #29041  
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Originally Posted by AeroFinn
I am puzzled: The glow plug threads of my NEW Saito FA-125 cylinder look worn even though no cross-threading has occurred?? I noticed this when I removed the glow plug to find the TDC while performing valve gap check. The threads still work out and hold the glow plug tight but, as said, look worn. Nothing like this has never happened to me in 20+ years of playing with various glow engines?! As I removed the OS-F plug some small aluminum particles came out along with the plug.
As long as the plug screws in readily and tightens securely, I wouldn't worry about it. You could run a thread-chaser through it if it feels rough when screwing the new plug in. Always a good idea to clean up the threads of a new plug before installing it.

CR
Old 04-03-2015, 02:35 PM
  #29042  
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Ah the prop thing. 14x8 is really good on a 65 if it is used at the right RPM let alone you 72. This is why I always have a selection of props available when either testing an engine or "getting it right" at the field. 14x8 if it is in the recommended range for the engine is the place to start, and in this case I suspect you will go down in both diameter and pitch until you get the correct "scale" performance. Mind you to some "correct scale speed" is the model actually doing the same speed as the full size device. Scale speed is as an example if full size does say 120knots the a 1/6th scale should do 20 knots. Not many models perform ideally at true scale speed but will go close if correctly designed to do so.
Old 04-03-2015, 02:37 PM
  #29043  
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On glo plug threads, I have noted of late that some Saitos that I have the conventional straight cut threads while others have rolled threads. Later is better but no worries working with either.
Old 04-03-2015, 06:34 PM
  #29044  
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Originally Posted by FNQFLYER
On glo plug threads, I have noted of late that some Saitos that I have the conventional straight cut threads while others have rolled threads. Later is better but no worries working with either.
Really? Rolled threads in aluminum?

CR
Old 04-04-2015, 03:58 AM
  #29045  
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Originally Posted by Charley
Really? Rolled threads in aluminum?

CR
Uh oh

Dave any news on the 182 twin or is the wallet trembling.Mine did but a divorce fixed that.Some pics of the front facing twin carbies with the airbleed screws at the factory settings...you can guess my problem
Old 04-04-2015, 04:07 AM
  #29046  
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Thanks Pete, I'm sliding it a month down the road. I had to pay a huge electric bill due to the extended cold spell we had, 5 to 15 degrees. I did till the garden yesterday, and I'm changing the oil in all my Briggs & Stratton engines. The Harley has new oil from last fall.
I have twin TurboHeaders on the 1.00 and Enya A-3 plugs, I might get to run it today, too much easter stuff to do.
Old 04-04-2015, 04:47 AM
  #29047  
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Good morning guys, Happy Easter. I have a Satio .80 that was a (basket case) that l had got from my brother. lt need'ed push rods and tubs. l could find the tubs but could not find the push rods! Well l am from the south! lol........ So l bought the tubs and seals and having a broken push rod, l took two allen rench's and cut them down, rounded both ends with a tapper, set the valve lash and it runs like a new one. SO, IT'S ALIVE!!! One more Satio is in the air. Steel have a Satio180 for sale or trade.
Old 04-04-2015, 05:11 AM
  #29048  
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Did you harden the ends on your pushrods?
Old 04-04-2015, 05:27 AM
  #29049  
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No. How would you do that?
Old 04-04-2015, 07:53 AM
  #29050  
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Originally Posted by slamn sammy
No. How would you do that?
Unless you annealed the Allen wrenches they should still be hard enough. But, does anyone know the Rockwell hardness of both the Saito pushrods and Allen wrenches? Likely the pushrods are more consistent in their hardness. Allen wrenches could be all over the place.
Sincerely, Richard
Club Saito #635; Saito 56, 100, 120abc, 130T, 180;
YS F 120;


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