Notices
Glow Engines Discuss RC glow engines

Welcome to Club SAITO !

Old 09-20-2009, 07:32 AM
  #16026  
My Feedback: (102)
 
Hobbsy's Avatar
 
Join Date: Dec 2001
Location: Colonial Beach, VA
Posts: 20,370
Likes: 0
Received 25 Likes on 25 Posts
Default RE: Welcome to Club SAITO !

Mike I had this happen to abrand new unrun Enya 1.55, the rocker split open where the adjusting screw goes through it. I ordered a new set of rockers and got rockers for the .53 on the first try, MRC let me keep the wrong ones and sent the correct ones for the same price.
Old 09-20-2009, 08:21 AM
  #16027  
My Feedback: (19)
 
PacificNWSkyPilot's Avatar
 
Join Date: Feb 2004
Location: Raeford, North Carolina
Posts: 3,988
Likes: 0
Received 2 Likes on 2 Posts
Default RE: Welcome to Club SAITO !

So the general consensus (although not answered directly) is that having the pressure tap is much better than running a straight pipe without a tap.

I was pretty sure that was the case anyway. And I've got the muffler with pressure fitting on it now anyway.

Jim
Old 09-20-2009, 09:49 AM
  #16028  
blw
My Feedback: (3)
 
blw's Avatar
 
Join Date: Mar 2004
Location: Opelika, AL
Posts: 9,447
Likes: 0
Received 2 Likes on 2 Posts
Default RE: Welcome to Club SAITO !


ORIGINAL: Hobbsy

Jim a guy ask me to run a Graupner 12.5x7 3 blade on my Saito 1.15, it is a hard turning prop that my Fox .74 Diesel can only swing at 8,400. To my surprise the 1.15 turned it at 9,650 with a fantastic idle at 2,000.

Saito 1.15
Plug==Fox Miracle
Fuel WildCat 15% with 18% 80/20 blend
Stock exhaust==9,650
TurboHeader===9,740

Nothing like a well balanced 3 blade for a smooth idle.
The Graupner 12.5x7 has blades approximately 1/8th inch wider than similar sized two bladers.
If you happen to slap that prop on a 1.25 then let me know how it does....please.
Old 09-20-2009, 11:25 AM
  #16029  
Junior Member
My Feedback: (11)
 
Join Date: Mar 2005
Location: , OR
Posts: 10
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Welcome to Club SAITO !

Jim......

I think you are referring to my post about the Saito 3.00 that has/had a crankcase pressure system. It has a tap on the crankcase which then went to a dedicated needle
valve and then, according to Randy at Saito engines (I think I am quoting him correctly....if not I apologize) it joined the tap from the exhaust pipe (no muffler on these) and then continued to the fuel tank to provide a head of pressure to the fuel flow. Thus........you had basically 5, yes I said FIVE, friggin needle valves all interacting with each other
to produce the resultant mixtures for low and high settings!! That about 3 needle valves too many for me. In my case, for unknown reasons, my extended exhaust flex-pipes did not have any pressure tap, so I was running the crankcase pressure directly to the fuel tank, according to my best interpretation of the sparse instructions/diagrams.
Let me tell you the eng hated this arrangement. In fact, Randy says the fact that the crankcase press was first routed to the exhaust pipe pressure line allowed the pressure
from the crankcase to be mediated, if necessary, so that it didn't provide excess pressure to the tank. I think you can see by now that I was trying to push a 20 ft length of chain from the back end!! ljc
Old 09-20-2009, 01:55 PM
  #16030  
My Feedback: (16)
 
w8ye's Avatar
 
Join Date: Dec 2001
Location: Shelby, OH
Posts: 37,576
Received 9 Likes on 9 Posts
Default RE: Welcome to Club SAITO !


ORIGINAL: mike early

Can anyone confirm that the exhaust thread on the 90 3-Cylinder Radial: TT is 9mm x .75mm? That is the same thread size on the .30 and .40 Saitos.....
The 90R3 has three Saito 30 cylinders and the exhaust is the same size as a Saito 30

Old 09-20-2009, 01:59 PM
  #16031  
My Feedback: (16)
 
w8ye's Avatar
 
Join Date: Dec 2001
Location: Shelby, OH
Posts: 37,576
Received 9 Likes on 9 Posts
Default RE: Welcome to Club SAITO !


ORIGINAL: TexasSkyPilot

So the general consensus (although not answered directly) is that having the pressure tap is much better than running a straight pipe without a tap.

I was pretty sure that was the case anyway. And I've got the muffler with pressure fitting on it now anyway.

Jim
There's a contraption sold by Saito consisting of a needle valve and some check valves to tap some of the pressure from the crankcase and route it to the tank.

It has been problematic at best for Sito owners. There are just too many variables. I might work for a model where the throttle is left in one position?

My advice is to not get involved with one unless you are using a Cline regulator also.

Most Saitos will run fine with no pressure system as long as you are not doing aerobatics

<div id="noHeaderContainer">
</div><!noHeaderContainer>
<div id="noHeaderContainer"></div><!noHeaderContainer> Copyright &copy; 2006-2009 Horizon Hobby, In
Old 09-20-2009, 02:07 PM
  #16032  
My Feedback: (16)
 
w8ye's Avatar
 
Join Date: Dec 2001
Location: Shelby, OH
Posts: 37,576
Received 9 Likes on 9 Posts
Default RE: Welcome to Club SAITO !


ORIGINAL: mike109

My Saito 90 TS disgraced its self today. It has been sitting since April so I checked the plane over, checked that the engine would turn freely and that the valve clearances were close to right which they were and went flying.

She started with no problems and I gave the needle a tweak and off we went. About 30 seconds into the flight the engine suddenly cut and I landed (if that is the word for it) in a field of oats which took the ouch out of the landing but stopped the plane very smartly.

Nothing appeared damaged so I prepared to start the engine again when I noticed that it did not feel quite right. So it was put into the vehicle and onto the bench for a look see.

I decided to check to see whether the valves were opening correctly and there was the problem. One of the valve adjusting screws (exhaust) on the left cylinder was broken and the nut and half of it were wandering round inside the tappet cover. The other half had started to unscrew and had reached the point where the valve was not opening.

I have a very early FA-45 so I pulled an adjusting screw out of it and it fits perfectly in the FA-90TS so she is ready to go again. I will buy some spares as soon as I can.

I have heard of pushrods jumping out of the end of the adjusting screws but this one was cleanly fractured.

Anyone else ever had this happen?

Mike in Oz.
I have had this happen on a Saito 91

Old 09-20-2009, 03:19 PM
  #16033  
Senior Member
 
mike early's Avatar
 
Join Date: Oct 2007
Location: Ashland, KY
Posts: 2,106
Likes: 0
Received 1 Like on 1 Post
Default RE: Welcome to Club SAITO !


ORIGINAL: w8ye


ORIGINAL: mike early

Can anyone confirm that the exhaust thread on the 90 3-Cylinder Radial: TT is 9mm x .75mm? That is the same thread size on the .30 and .40 Saitos.....
The 90R3 has three Saito 30 cylinders and the exhaust is the same size as a Saito 30


Thanks!
I will try a header pipe with a pressure tap. They are out of stock on the .40 exhaust header.... I wonder how it'll sound? Hopefully 1/3rd as cool as the 903R....
Old 09-20-2009, 05:26 PM
  #16034  
Senior Member
 
mike109's Avatar
 
Join Date: Jul 2004
Location: Dubbo, New South Wales, AUSTRALIA
Posts: 1,484
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Welcome to Club SAITO !

G'day Thanks DAve - glad I am not the only one. At least it was very easy to fix.

Mike
Old 09-20-2009, 05:29 PM
  #16035  
Senior Member
 
mike109's Avatar
 
Join Date: Jul 2004
Location: Dubbo, New South Wales, AUSTRALIA
Posts: 1,484
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Welcome to Club SAITO !

G'day W8YE. Seems that it is not all that uncommon as Dave has had the problem too with an Enya. All I can figure is that the person that assembled the engine got a bit carried away with locking the nut or else the material in the adjuster had a flaw in it. Mike
Old 09-20-2009, 06:34 PM
  #16036  
My Feedback: (16)
 
w8ye's Avatar
 
Join Date: Dec 2001
Location: Shelby, OH
Posts: 37,576
Received 9 Likes on 9 Posts
Default RE: Welcome to Club SAITO !

Things happen sometimes
Old 09-20-2009, 08:05 PM
  #16037  
Junior Member
 
Join Date: Aug 2009
Location: Greenfield, IN
Posts: 19
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Welcome to Club SAITO !

I have three Saito's, I am curently useing my 1.20 in  gp vENNIUS II. love it ,all the power I neen for verticals or anything else.

Gene
AMA 35661
Old 09-20-2009, 08:32 PM
  #16038  
My Feedback: (16)
 
w8ye's Avatar
 
Join Date: Dec 2001
Location: Shelby, OH
Posts: 37,576
Received 9 Likes on 9 Posts
Default RE: Welcome to Club SAITO !

Welcome to RCUniverse
Old 09-20-2009, 08:43 PM
  #16039  
My Feedback: (19)
 
PacificNWSkyPilot's Avatar
 
Join Date: Feb 2004
Location: Raeford, North Carolina
Posts: 3,988
Likes: 0
Received 2 Likes on 2 Posts
Default RE: Welcome to Club SAITO !

I'm glad I was able to get my muffler worked onto mine, then.

Jim
Old 09-21-2009, 12:07 PM
  #16040  
blw
My Feedback: (3)
 
blw's Avatar
 
Join Date: Mar 2004
Location: Opelika, AL
Posts: 9,447
Likes: 0
Received 2 Likes on 2 Posts
Default RE: Welcome to Club SAITO !


ORIGINAL: pattern flyer63

I have three Saito's, I am curently useing my 1.20 in gp vENNIUS II. love it ,all the power I neen for verticals or anything else.

Gene
AMA 35661
Want to be a club member?
Old 09-21-2009, 12:21 PM
  #16041  
 
Join Date: Mar 2009
Location: Guilford, CT
Posts: 3,950
Received 2 Likes on 2 Posts
Default RE: Welcome to Club SAITO !

Hi, are your Triumphs two or four wheel? I have a '66 TR4A waiting restoration. Bid on a Bonneville a friend has a while back, but he would not sell.

Cheers,
Richard
Old 09-21-2009, 07:18 PM
  #16042  
Senior Member
 
Join Date: Dec 2007
Location: Palestine, TX
Posts: 518
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Welcome to Club SAITO !

the old fa80 in action
http://www.youtube.com/watch?v=7Cd_ahJShcA
Old 09-21-2009, 07:49 PM
  #16043  
My Feedback: (102)
 
Hobbsy's Avatar
 
Join Date: Dec 2001
Location: Colonial Beach, VA
Posts: 20,370
Likes: 0
Received 25 Likes on 25 Posts
Default RE: Welcome to Club SAITO !

Runnin good Charlei
Old 09-22-2009, 03:18 PM
  #16044  
Senior Member
 
Join Date: Dec 2007
Location: Palestine, TX
Posts: 518
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Welcome to Club SAITO !

I purchased a gasket set for the FA80.
what i need to know, is ....
is there a gasket that goes between the block and the jug?
cuz it sure didnt come with one.

have to replace the pushrod tube rubbers....their split and hard.
Old 09-22-2009, 05:13 PM
  #16045  
My Feedback: (16)
 
w8ye's Avatar
 
Join Date: Dec 2001
Location: Shelby, OH
Posts: 37,576
Received 9 Likes on 9 Posts
Default RE: Welcome to Club SAITO !

No
Old 09-22-2009, 06:01 PM
  #16046  
Senior Member
 
Join Date: Dec 2007
Location: Palestine, TX
Posts: 518
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Welcome to Club SAITO !

kewl.....thanks again
Old 09-22-2009, 09:40 PM
  #16047  
My Feedback: (221)
 
ram3500-RCU's Avatar
 
Join Date: Aug 2002
Location: n. canton, OH
Posts: 9,737
Received 12 Likes on 6 Posts
Default RE: Welcome to Club SAITO !


ORIGINAL: TexasSkyPilot

So the general consensus (although not answered directly) is that having the pressure tap is much better than running a straight pipe without a tap.

I was pretty sure that was the case anyway. And I've got the muffler with pressure fitting on it now anyway.

Jim
I always have a pressure tap in the exhaust of my Saitos, and don't run pumps on any of them. I find the tap in the Turbo Header to be a little more efficient than the stock muffler for pressure, but both work. I do fly all my planes inverted and, at least to some degree, acrobatically. Yes, the pressure tap is a good thing.
Old 09-22-2009, 09:45 PM
  #16048  
Junior Member
My Feedback: (11)
 
Join Date: Mar 2005
Location: , OR
Posts: 10
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Welcome to Club SAITO !

Having learned the hard way using the crankcase pressure system (I am told a limited number of engines were sent out with this recommendation) and no muffler or exhaust
pipe tap, I would very much agree.
Old 09-23-2009, 03:54 AM
  #16049  
 
Join Date: Mar 2008
Location: Wagga Wagga, AUSTRALIA
Posts: 26
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Welcome to Club SAITO !

G'day Fellas, how do ya's reckon my Saito 1.00 would go hauling a 76" Tiger Moth around with a 15 x 6 ? The aircraft currently has a 1.80 with a 16 x 8 and well , it is a bit overpowered, and I want to stick the 1.80 in my WM 1/4 Clipped Wing Cub!. All it's gotta do is fly like a real 'Moth not go crazy. I reckon she's up to the task as the big bipe don't need a lot get her going but I thought I'd get some other opions. Thanks spud
Old 09-23-2009, 04:22 AM
  #16050  
My Feedback: (23)
 
GaGeeBees's Avatar
 
Join Date: Sep 2004
Location: Fayetteville, GA
Posts: 1,413
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Welcome to Club SAITO !

Your Saito 1.00 will be a good match for the Tigermoth. I fly one using a well broken in Magnum .91 and a 14x8 and it's got plenty of power.

Thread Tools
Search this Thread

Contact Us - Manage Preferences Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.