Welcome to Club SAITO !
03-21-2006, 07:52 PM
#2352
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RE: [Awaiting Approval]
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.
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.
03-21-2006, 08:40 PM
#2354
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RE: [Awaiting Approval]
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
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
03-21-2006, 09:06 PM
#2355
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RE: [Awaiting Approval]
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
Thanks agian for all your knowledge and help..
LATER
03-21-2006, 09:09 PM
#2356
RE: [Awaiting Approval]
[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.
[/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.
03-21-2006, 09:16 PM
#2358
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RE: [Awaiting Approval]
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
This thread is growing faster than any thread I have ever seen on any site.. That is awesome..
LATER
03-21-2006, 09:35 PM
#2360
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RE: [Awaiting Approval]
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
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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.
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.
03-21-2006, 11:06 PM
#2361
RE: [Awaiting Approval]
ORIGINAL: jlkonn
P-38 the can opener right?
P-38 the can opener right?
http://www.georgia-outfitters.com/page52.shtml
03-22-2006, 02:55 AM
#2362
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RE: [Awaiting Approval]
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
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
03-22-2006, 06:58 AM
#2364
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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.
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.
03-22-2006, 07:26 AM
#2365
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RE: [Awaiting Approval]
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.
03-22-2006, 09:27 AM
#2366
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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.
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.
03-22-2006, 09:29 AM
#2367
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RE: [Awaiting Approval]
[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]
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]
03-22-2006, 01:34 PM
#2370
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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
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
03-22-2006, 02:21 PM
#2374
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.
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.
03-22-2006, 02:57 PM
#2375
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RE: Welcome to Club SAITO !
New:
243 MOTORMAN37
244 closetguy
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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.
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.