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RE: Welcome to Club SAITO ! - 1/13/2013 11:39 AM   
Old Fart


 

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Hi rye if you smoke rollies grab a paper out and use it,about one and a half thou don't know how you say that in metric.We used to use that method free floating sporting firearm barrels.I know there's plenty of apps around for converting af to metric re thread sizes but everytime you look at the chart it leaves you with a vague headache,man i wish and am going to tool up so i can cut some half decent threads for my saito exhaust systems!!

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RE: Welcome to Club SAITO ! - 1/13/2013 2:29 PM  1 votes
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http://www.horizonhobby.com/products/56-aac-with-muffler-ii-SAIE056#t4 go about 2/3 the way down the page.

If you pick a set of guages at NAPA make sure it has a .004 inch feeler in it.

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RE: Welcome to Club SAITO ! - 1/13/2013 2:42 PM   
rye


 

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thankyou sir

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RE: Welcome to Club SAITO ! - 1/13/2013 6:41 PM   
Tom Haley


 

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I have a saito 72 on a nex star I want to put a 3 bladed prop on. I have been running an 11x7 2 blade. What would be a 3 blade recommendation.

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RE: Welcome to Club SAITO ! - 1/13/2013 7:47 PM   
mike early



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12x6 or 12x8 3-blader

I imagine you had the engine under-propped with the 11x7 two blade

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RE: Welcome to Club SAITO ! - 1/13/2013 8:18 PM   
SrTelemaster150



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quote:

ORIGINAL: Quikturn

Hobbsy, thanks for the info! I have a Saito 91 that turned out to be not such a good deal. I was going to clean it up before I used it and came across discrepancies. One of them being a stripped out screw on the lower left rear cover plate. I believe those are 3mm screws. The cylinder hold down screws are slightly larger at 3.5mm so I thought I would re-tap the stripped out screw for a 3.5mm one. Initially, I wanted to modify a 3.5mm screw into a tap using a cutting wheel but a purpose made tap would be better. I would hate to mess up a crankcase with something not up to the job. I just wanted to be sure which tap I need to order.

Joe


The stock rear cover screws do not go all the way to the bottom of the hole in the case. (at least not on te FA150)

There may be enough thread left to use a longer screw. I think I used the length screw that was used in the FA150 cam housing.

Anyway, check the depth of the hole against the length of the OEM rear cover screw. If there is enough depth, try a srew that is 1mm longer or better yet instal a stud in the hole. No dangerv of bottoming out & breaking off a screw W/a stud.

A "bottom tap" may also get you enough additional threads to get a better hold.

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RE: Welcome to Club SAITO ! - 1/14/2013 1:08 AM  1 votes
blw



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I bet that 72 screams with a 11x7 prop.

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RE: Welcome to Club SAITO ! - 1/14/2013 3:25 AM   
Quikturn


 

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quote:

ORIGINAL: SrTelemaster150

The stock rear cover screws do not go all the way to the bottom of the hole in the case. (at least not on te FA150)

There may be enough thread left to use a longer screw. I think I used the length screw that was used in the FA150 cam housing.

Anyway, check the depth of the hole against the length of the OEM rear cover screw. If there is enough depth, try a srew that is 1mm longer or better yet instal a stud in the hole. No dangerv of bottoming out & breaking off a screw W/a stud.

A ''bottom tap'' may also get you enough additional threads to get a better hold.


Thanks for the idea. I'll take a look at it and see if it's the same on the 91. It would certainly be an easier repair.

In the event it won't work out, I beleive there is enough material in the crankcase to re-tap to a larger size.


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RE: Welcome to Club SAITO ! - 1/14/2013 2:50 PM   
SrTelemaster150



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quote:

ORIGINAL: Quikturn


quote:

ORIGINAL: SrTelemaster150

The stock rear cover screws do not go all the way to the bottom of the hole in the case. (at least not on te FA150)

There may be enough thread left to use a longer screw. I think I used the length screw that was used in the FA150 cam housing.

Anyway, check the depth of the hole against the length of the OEM rear cover screw. If there is enough depth, try a srew that is 1mm longer or better yet instal a stud in the hole. No dangerv of bottoming out & breaking off a screw W/a stud.

A ''bottom tap'' may also get you enough additional threads to get a better hold.


Thanks for the idea. I'll take a look at it and see if it's the same on the 91. It would certainly be an easier repair.

In the event it won't work out, I beleive there is enough material in the crankcase to re-tap to a larger size.



The rear cover screws don't need a lot of torque. They are not containg any type of force. They just hold the rear cover in place. If you can get 3-4 threads to bite, use a stud W/red locctite.

I went ahead & installed studs in both bottom holes to mount a bracket for a Perry V-20 Pump.

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RE: Welcome to Club SAITO ! - 1/15/2013 4:18 AM   
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I finally got to start my used FA-91SGK.  It starts and runs like a jewel and the sound is great.  Although, that muffler looks like a plumbing fixture.  I could use a little extra RPM so, it looks like I'll be picking up a Turbo-Header soon.  I haven't checked the peak RPM on it yet because it got dark before I thought about it.  The 13x8 prop was running at a pretty good clip and I expect it to tach high.  I may want to try a deeper pitch but, won't be able to tell until I fly it and see how she performs.
This engine is mounted inverted on a World Models Intruder 90R that I plan to use in SPA competitions.  We  established the "SPA West" division last year and had a great turnout at almost all of the events held west of the Mississippi.  The SPA West "Ft. Worth Open" was flown at my home field this year ....The Ft. Worth Thunderbirds facility on Benbrook Lake. 
The Intruder is a good flying plane and is capable of winning contests as has been demonstrated several times in SPA contests.  I'm looking forward to a great season with this plane and the outstanding engine mounted on it.

RJ



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RE: Welcome to Club SAITO ! - 1/15/2013 5:07 AM   
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I have a Saito 82. I just replaced the cylinder, adjusted the valves and now it runs ok, but the high speed needle is only bout a 1/4 turn from being completly closed. It ideels fine, and seams to run a high speed ok. BUt the high needle setting seams to be way to closed. Shouldn't it bee open somewhere around 1-1/2 turns? Any ideas?

Thanks
Jim

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RE: Welcome to Club SAITO ! - 1/15/2013 1:40 PM   
SrTelemaster150



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quote:

ORIGINAL: JWQ500RC

I have a Saito 82. I just replaced the cylinder, adjusted the valves and now it runs ok, but the high speed needle is only bout a 1/4 turn from being completly closed. It ideels fine, and seams to run a high speed ok. BUt the high needle setting seams to be way to closed. Shouldn't it bee open somewhere around 1-1/2 turns? Any ideas?

Thanks
Jim



LSN a bit rich affecting the HSN?

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RE: Welcome to Club SAITO ! - 1/15/2013 5:07 PM   
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Sr. Telemaster

Maybe, but I don't think so. Transision is good from idel to high speed. I'll take a look at the LS needle tonite when I get home.

Thanks
Jim



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RE: Welcome to Club SAITO ! - 1/15/2013 9:09 PM   
Mein Duff



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quote:

ORIGINAL: rowdyjoe

  We  established the ''SPA West'' division last year and had a great turnout at almost all of the events held west of the Mississippi.  The SPA West ''Ft. Worth Open'' was flown at my home field this year ....The Ft. Worth Thunderbirds facility on Benbrook Lake. 
The Intruder is a good flying plane and is capable of winning contests as has been demonstrated several times in SPA contests. .

RJ




What is an SPA competition ????

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RE: Welcome to Club SAITO ! - 1/15/2013 10:50 PM  1 votes
blw



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Senior Pattern Association. There is a cutoff date for models to compete. I think it is only open to models available no later than 1975.

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RE: Welcome to Club SAITO ! - 1/16/2013 2:13 PM  1 votes
Hobbsy



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Jim, the LS needle will only effect the HS needle when the LS needle is too lean, since the HS needle has a fixed seat, set it at peak before you attempt to set the LS needle. Setting the HS needle at full peak eliminates one variable.

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RE: Welcome to Club SAITO ! - 1/17/2013 12:11 AM   
tbone4343


 

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need rocker arm pin or screw for a saito 50 the 56 part will work also horizon does not have it and at a loss
any one out there have one as i sure could use it
thanks

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RE: Welcome to Club SAITO ! - 1/17/2013 12:19 AM   
FNQFLYER


 

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Check out Hobby Headquarters in OZ or go direct to Japan

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RE: Welcome to Club SAITO ! - 1/17/2013 1:10 PM   
Old Fart


 

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Probably save him a bit of time too.Many bushfires up your way?:

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RE: Welcome to Club SAITO ! - 1/17/2013 2:13 PM   
Quikturn


 

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quote:

ORIGINAL: tbone4343

need rocker arm pin or screw for a saito 50 the 56 part will work also horizon does not have it and at a loss
any one out there have one as i sure could use it
thanks


Here, I think this is what you're looking for.

http://www.gravesrc.com/mobile/default.aspx#P37340

Joe


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RE: Welcome to Club SAITO ! - 1/17/2013 4:01 PM   
barry wetherell


 

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Tbone, if you get stuck, use the end of a drill bit, the rocker cover will hold it in place
Barry

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RE: Welcome to Club SAITO ! - 1/17/2013 7:11 PM   
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Tbone,
I have just what you need - sent you a PM earlier today.
Jim

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RE: Welcome to Club SAITO ! - 1/17/2013 9:36 PM   
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Old Fart, no bush fires up here, if the greenies get in the way of the winter cool burns we burn them as well.
I lived trough the Ash Wednesday fires (Mt Macedon in Victoria) and I used to hunt in the high country where the current fires are in Vic (Mt Baw Baw) and since our "savers of everything" have been let loose and stopped sensible management of the forestry et al we continue to see scenes like te Camberra fires etc.  The lessons of the past were learnt and then discarded.  And the idiots in the fire services still will not use the water bombers they useelsewhere in the world.  I have watched a fire being fought in similar teritory to the Vic Alpine area with only air assetts they put it out and 2 years later almost all traces of the fire were obliterated
As a wise person once said "when you seek to save everything you end up loosing the lot"
As for me give me a cyclone any day over the fies down south

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RE: Welcome to Club SAITO ! - 1/18/2013 3:16 AM   
rowdyjoe


 

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quote:

ORIGINAL: Mein Duff

What is an SPA competition ????


http://www.seniorpattern.com/

"Senior" refers to the planes and not necessarily the pilots.   
Take a look at the web site and learn all about it.  It involves flying planes that were built/designed and flown in aerobatics competition prior to 1 Jan. 1976 using the AMA rules that applied at that time.  It's a more affordable (and I think fun) venue than FAI hard core, multi $k equipment.  Engines are limited in size to .65 two stroke (or below) or .95 four stroke.  No pipes, superchargers, turbochargers, major airframe mods, etc. allowed.  Anyway, there are a few rules to keep the planes within plan-form of the originals. 
Take a look.  I'll bet you'll like it.

Saitos are a popular engine in this venue.

RJ
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RE: Welcome to Club SAITO ! - 1/18/2013 3:58 AM  1 votes
blw



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RJ,

That *may* be for your SPA area. It's good to know. We hosted the SPA for 2 years here in Alabama and it was 99% OS 91's. Everyone seemed to have dim views of Saitos.

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