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Old 10-13-2010, 12:03 PM
  #18651  
spaceworm
 
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Default RE: Welcome to Club SAITO !

You have to own a Saito and have to ask for a membership number. Do/did you?

Regards, Richard
Old 10-13-2010, 04:02 PM
  #18652  
The Raven
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ORIGINAL: maukaonyx

Hi guys. I am trying to change the bearings in my Saito 82a. Been trying to find help here but now I need to ask for help. I have the top half of the engine off - the piston is in the cylinder head on the top half. Now I am trying to figure out how to get the prop hub off so I can get to the bearings around the crankshaft thing. I see reference here to a prop hub puller? I don't have one...is there a way to get it off with just everyday tools around the garage? I don't even know what a prop hub puller would look like. (I used to do slot cars...is it like a large version of a little gear puller?) Help would be appreciated. Also, when I took off the cover over the cams, I obviously lost the orientation of the gears. How do I get that reset properly? And I guess the thin gasket tore...is it necessary to replace that thin thing? Thanks to anyone offering help! Jon
I would highly recommend getting the right bearing pullers. Sure they cost but they aren't that expensive and the time they save is well worth it. A two or three jaw puller combined with a bearing separator (see pics way back in this thread) allowed me to remove the prop hub on two engines in minutes, where I had been trying other methods for a full week!

Gear pullers (two or three jaw) are unlikely to fit the prop hub nicely, and could cause the hub to bend or distort if they can't hold properly. Adding the bearing separator avoids this problem.
Old 10-13-2010, 06:25 PM
  #18653  
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It works but you have to do it softly and dont' apply any heat directly to the crankshaft.

Pepe
Old 10-13-2010, 06:35 PM
  #18654  
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Hi Guys, have 4 Saitos and would like to be a member of club SAITO , How do I do this ? Thanks Bob A
Old 10-13-2010, 07:36 PM
  #18655  
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ORIGINAL: blw

The gear puller is the best method because the only stress you are putting on the engine is from the tip of the crankshaft as you pull the drive washer off. This is a reusable tool for other engines.

For rear bearing removal, I heat the case at 250 f for starters. Use oven mitts, and hit a piece of wood like a 2x4 and see if the crankshaft and rear bearing will come out the rear. It sometimes takes reheating a bit higher. I had to go to 350 f the last time and I was worried it wouldn't budge, but it did. This is an engine that has sat for 25 years.

For the front bearing I have sanded down dowels that fit up against the bearing back. I used the heat gun for grins one day on that 25 y/o engine and the front bearing shot out. It usually takes reheating in the oven.

Yes, that thin gasket for the cam cover is necessary. The cam gear should have a dot for orientation.

Anybody need a Club Saito membership number?

THANKS to everyone for your help! And yes, I would like a Club Saito number...I feel like I just earned it by doing the bearing change. Someone said it was trivial. NOT FOR ME, lol. I think it was a major accomplishment for me, and a great learning experience because I never had a Saito taken apart to this extent. I feel good about doing it now, but the proof is in the running, which I will try tomorrow.

So just to recount a bit of what I experienced, here goes. I had to keep upping the temp in the oven from 300F to 350F to 370F, and finally 380F when both bearings finally came out of the engine! Here is a pic of the bearings...the rear one was totally shot. Some balls were actually gone completely, and that metal race ring was torn. Some of it was where the balls should be. No wonder I found small shiny dust particles of metal inside the engine as I worked on it.



The new bearings fell right into place when I heated the engine up to 380F again. Next I put the prop hub back on and had to heat it up too. It required a little encouragement with a dowel and hammer to get it all the way on. I basically shoved it as far on as it would go, and there is zero play forward and backward...hope that was the thing to do. No changing it now! I found a gasket in my extra stuff, so put that on where the cam cover goes. Found an extra O ring to replace a torn one for the place where the chrome tube goes into the head.

There is no play side to side anymore on the shaft, none front to back either. Feels a little tight. Hoping I did not assemble anything wrong and that this thing runs nice again. It was sorta fun, but challenging and frustrating at times! It's a lot more fun now that I am done, I think. Jon

Old 10-13-2010, 07:59 PM
  #18656  
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The hub is usually installed cold and fastened on with a prop and the prop nut.
Old 10-13-2010, 10:18 PM
  #18657  
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Default RE: Welcome to Club SAITO !

I guess I should not have assumed that with all the questions and answers that I have participated in that anyone would know I own Saito engines. For the record I have:

Saito FA56
Saito FA72
Saito FA100T
2 - Saito FA90R3
2 - Saito FA170R3
Saito FA450
Saito FG20
Saito FG30

Sorry I did not realize I had to ask to be a member so I am doing that now.

Thanks,

jimm
Old 10-13-2010, 11:03 PM
  #18658  
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Not if it is a rubberized or composite tipped hammer, or a piece of wood. I prefer wood.


Ed Cregger
Old 10-13-2010, 11:11 PM
  #18659  
w8ye
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ORIGINAL: NM2K

Not if it is a rubberized or composite tipped hammer, or a piece of wood. I prefer wood.


Ed Cregger
???

All you do is put the pieces in place and tighten the nut. The hub installs itself

You start banging on it with all the stuff you are talking about will make dings in the bearing races and ruin the bearings. Then you will have to start over with new bearings.

Old 10-13-2010, 11:27 PM
  #18660  
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ORIGINAL: w8ye

The hub is usually installed cold and fastened on with a prop and the prop nut.

Live and learn....I''ll do it that way next time. Thanks. Jon
Old 10-13-2010, 11:36 PM
  #18661  
NM2K
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I was referring to bearing removal or install, not hub install/deinstall. My bad.

That's what I get for skimming.


Ed Cregger
Old 10-14-2010, 03:59 AM
  #18662  
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[8D]

My SAITO FA-150....where can i find the manual ?



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Old 10-14-2010, 06:54 AM
  #18663  
Rudolph Hart
 
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Hey i know manuel i think he's spanish,you could google it mate
Old 10-14-2010, 07:05 AM
  #18664  
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Hi for those of us that are somewhat new to saitos , could some one walk me through a bearing replacment proceedure on a FA91 . Don't know if I need them but I would like to be up on the "how-to " in the event I have to do it Still would like to be a member of club saito , how do I go about this Thanks Bob A
Old 10-14-2010, 07:32 AM
  #18665  
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http://www.horizonhobby.com/ProdInfo...der_Manual.pdf

Right here
Old 10-14-2010, 11:48 PM
  #18666  
Riverview
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Does anyone know if there is anybody making a right angle adaptor for the orgiinal flex mufflers on a Saito 100 twin? The angle adpators that Horizon lists for this engine will not work, Techs could not find anything either. The flex muffler that come with this engine have a flange that seals with a small round gasket in the head. The right angle adaptor from Horizon has no internal flange for the pipe and gasket to seal onto. I am installing this engine in a TF Cessna 182 and the fit is great and the mufflers would exit very nice with a right angle adaptor.
Old 10-15-2010, 01:41 AM
  #18667  
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I used the Saito Rt Angle adapters and the thin pipes from a 100Ti on my 90TS and they seated just fine. The thin pipes have a compression nut and flange like you describe.
Old 10-15-2010, 02:46 AM
  #18668  
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Thank's Hobbsy !
Old 10-15-2010, 07:23 AM
  #18669  
mike early
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ORIGINAL: w8ye

I used the Saito Rt Angle adapters and the thin pipes from a 100Ti on my 90TS and they seated just fine. The thin pipes have a compression nut and flange like you describe.

I cannot get the 'thin pipes' to work with the saito 90ΒΊ fittings. There's nothing for the pipes to seat against....


Old 10-15-2010, 08:19 AM
  #18670  
w8ye
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I do not have those same parts in the picture. My pipes are from the Sito 100Ti engine. They are simply threaded on the end with a Jam nut. The pipes and the right angle adpater are made for each other.

Here's a picture of my 60T set up as described



Old 10-15-2010, 09:29 AM
  #18671  
spaceworm
 
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ORIGINAL: Riverview

Does anyone know if there is anybody making a right angle adaptor for the orgiinal flex mufflers on a Saito 100 twin? The angle adpators that Horizon lists for this engine will not work, Techs could not find anything either. The flex muffler that come with this engine have a flange that seals with a small round gasket in the head. The right angle adaptor from Horizon has no internal flange for the pipe and gasket to seal onto. I am installing this engine in a TF Cessna 182 and the fit is great and the mufflers would exit very nice with a right angle adaptor.

Somewhere on this thread I have read (I think) that the flex mufflers rob some of the power. Anyone else remember this comment? Do you have any options for a non-flex arrangement? Just a thought.

Sincerely,

Richard
Old 10-15-2010, 09:34 AM
  #18672  
w8ye
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Here is a picture of the shorter one of the pipes from the Saito 100Ti inline twin engine that are made to work with the right angle adapters;




That is correct that the flexible pipes rob power


Here is the longer pipe



Old 10-15-2010, 09:43 AM
  #18673  
mike early
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I'll be damned. That's the ticket!


Alas: out of stock until Late November, 2010


They are 12x1mm, correct?

Or...are they 10x1mm?
Old 10-15-2010, 10:05 AM
  #18674  
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The Saito 100Ti has 10mm mufflers and so does the 60T, 80T, 90T, 90TS, and 100T
Old 10-15-2010, 10:27 AM
  #18675  
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Default RE: Welcome to Club SAITO !

704 N6iap

705 Aguisribob.msn.com


nice collection, Jimm

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