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Welcome to Club SAITO !

Old 03-21-2006, 07:49 PM
  #2351  
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Do you know what significant figures are?
Old 03-21-2006, 07:52 PM
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Thunderchild:

Saito gives the operating range of the FA-82 as going up to 12K rpm, so yu could safely got to 11K on the ground with a high pitch propellor.

Engines do unload somewhat in the air, but the amount of rpm gained is in direct relationship to the actual air speed and the pitch speed. If you put a prop on with a 4" pitch the plane would easily reach the 45 mph pitch speed at 12K rpm in a dive, and any more speed that that would have you running the engine over speed. At the same time, pitch speed with a 10" pitch and 12K rpm is a little over 113 mph. I strongly doubt you'll ever get it that fast.

So, regardless of prop diameter, the plane with a 4" pitch will "Unload" the engine in the air a lot more than it will with a 10" pitch, and you can have a higher static rpm with the higher pitch and still be safe.
-----------------------------
Gary:

JACKLEGS UNITE!!!
-----------------------------
John:

We don't need no steenkin fancy pliers!

I will admit to using plier handles as levers more than once.

Haw.

Bill.
Old 03-21-2006, 08:22 PM
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You guys are forgetting one of the most important, totally indestructable, and do anything tools ever devised!

The P-38.
Old 03-21-2006, 08:40 PM
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P-38 the can opener right?
There needs to be a Universal Saito Disassembly Tool Kit.
I thought the next semester of the William Robison School of Model Engine Repair and Overhaul that I enrolled in I'd be issued one.
Seems I got a notice in the mail that my application had been rejected...I flunked out!
[sm=crying.gif]
Oh well...at least there had been hope for awhile...
JLK
Old 03-21-2006, 09:06 PM
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Well I finally got it I ended up trying just tapping it out and it STILL would not come out. I put it Back in the oven to cook some more.. (just love the smell of hot 4 strokes). I then taped easy and it started moving. It popped out and we are now waiting for bearings and rings. I inspected the cam really good and It seems really smooth. It was just sitting up WAY to long. The motor itself looks NEW! Great condition. Can't wait to get the new and try it again!!

Thanks agian for all your knowledge and help..


LATER
Old 03-21-2006, 09:09 PM
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[ul][*] My universal kit consist of a device to get the front prop driver off.[*] A metric ball tipped long arm Allen wrench set[*] A sears metric ignition wrench set of box-open end wrenches[*] A Saito valve adjusting kit[*] A 1" thick maple cutting board[*] A #2 Phillip's screw driver[*] A kitchen oven or a Monocote gun[*] Assortment of wooden dowel pieces[*] Small hammer[*] Exacto Knife[*] Popcycle sticks
[/ul]

Edited to include popcycle sticks at the request of others that know me. I bought a package at Walmart about 3 years ago I use them for all kinds of things in model airplanes and engine bearing replacement. I use the exacto knife to remove the shields on the rear bearings.
Old 03-21-2006, 09:12 PM
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OK now im interested. What is the Exacto for... shaving down the dowel?
Old 03-21-2006, 09:16 PM
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OK now im interested. What is the Exacto for... shaving down the dowel?

This thread is growing faster than any thread I have ever seen on any site.. That is awesome..



LATER
Old 03-21-2006, 09:23 PM
  #2359  
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Jim,

Didn't you forget the popsicle sticks?
Old 03-21-2006, 09:35 PM
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Jim:

Mine's pretty much the same as yours except for the Saito valve adjuster kit. In the shop I normally use a dial gauge for adjustment, in the field I use a 0.0015" feeler strip.

I also add a supply of cigarette filters. Huh??? Right. Four squeezed together make a nice plug for the exhaust port when storing the engine, a few drops of oil on/in it keeps the top end clean and dry. Also, if you paint your cylinders plug the intake as well, and one alone closes the plug hole nicely. Much easier than ordinary masking. Faster too.

If you are using your wooden dowels as assembly mandrels, then I'm doing the same except mine are various size steel rods
----------------------------
PL:

The Xacto knife is to hold the cam gear as you install the cam housing. Too easy to knock it out of time otherwise.

Bill.
Old 03-21-2006, 11:06 PM
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ORIGINAL: jlkonn

P-38 the can opener right?
Yup! I still have my original issue too.

http://www.georgia-outfitters.com/page52.shtml
Old 03-22-2006, 02:55 AM
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Powerlines,

If your exhaust manifold and muffler don't look like a shirty dirt, you're not flying enough and spending waaaaaay too much time cleaning in the shop. Mine are the color of a baby's diaper after two days of creamed asparagus and beans.

Jack
Old 03-22-2006, 03:00 AM
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Jack:

While you're hee, send me your email address.

Bill.
Old 03-22-2006, 06:58 AM
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Default RE: Welcome to Club SAITO !

Hi,
I'm new to the club.I have a couple of saito engines 45 & 56.The 45 is needing a bit of TLC.I'm looking at giving it a overhaul.Are there any tips for stripping,any problem area's.These engines are pleasure to own.Any advice welcome.Cheers.
Old 03-22-2006, 07:26 AM
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Per Professor Robisons request several Off Topic Posts have been removed from this thread to get back on the topic of Saitos. Thanks for your understanding.
Old 03-22-2006, 09:27 AM
  #2366  
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Default RE: Welcome to Club SAITO !

VACE:

You are now in as member number 242.

Send me your email address and I'll send you a short text file on overhaul of Saito engines. Also the general notes if you'd like.

Bill.

Old 03-22-2006, 09:29 AM
  #2367  
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[a]All:

Yes, I told Hobbsy he could pull all the "Deflated Uranium" and "Nobendium" files.

You may also have noticed the thread title is restored.

Bill.
[/b]
Old 03-22-2006, 09:31 AM
  #2368  
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Default RE: Welcome to Club SAITO !

Well, the title was restored. Guess BL has hit us again.

Bill.

Old 03-22-2006, 10:04 AM
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Default RE: Welcome to Club SAITO !

Can I please join the Saito club. I have owned and flown Saito's for years.
Old 03-22-2006, 01:34 PM
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Default RE: [Awaiting Approval]

Bill R.
is thier a way to fix the flexing carb mount on a saito 72, i know this has been brought up,but can't find it.
thanks for your help

two -72
one-100
one -180
Old 03-22-2006, 01:37 PM
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Default RE: Welcome to Club SAITO !

As much as you run Saitos down, no way.
Old 03-22-2006, 01:40 PM
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Default RE: Welcome to Club SAITO !

Torque Wrench,
Are you serious. I really want to join this group. I have and love Saito's, and like I mentioned earlier, I just purchased another .91 a couple weeks ago.[sm=crying.gif]
Old 03-22-2006, 01:44 PM
  #2373  
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Of couse I ain't serious, can't do bad to an engine guy. Sticking up for a Magnum is pretty far from where I am though.
Old 03-22-2006, 02:21 PM
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Default RE: [Awaiting Approval]

On the 72 fix, Saito brought out a new back plate that has a brace under the carb mount.

Also Some had little washers under the screws.

Buy a new back plate and get some small metric washers to go under the screws.

http://www.horizonhobby.com/Products...rodID=SAI7217A

You will need new O-rings top and bottom.

http://www.horizonhobby.com/Products...rodID=SAI8091B

The same new back plate is now used on the 82.

Saito must feel bad about the 72, the new ones come with a extra set of Orings.
Old 03-22-2006, 02:57 PM
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Default RE: Welcome to Club SAITO !

New:

243 MOTORMAN37
244 closetguy
-----------------------
MM37:

Welcome, and thanks for the email address but please edit your post and remove it. Having it in the open like that just invites the spammers.
-----------------------
closetguy:

Welcome to you also.

On the worst FA-72 I've run into we did everything. New late type back plate, several replacement o-rings, it would last 15-20 minutes and then quit. Finally put two turns of 0.020" safety wire around the cylinder holding the intake pipe just at its entry into the carb body. Pulled it tight and twisted the ends together. The engine hasn't missed a beat since.

Bill.



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