RE: Welcome to Club SAITO !    Gallery
View related threads: (in this forum | in all forums)

Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version

All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Glow Engines >> RE: Welcome to Club SAITO !
Page: <<   < prev  848 849 [850] 851 852 853 854 855 856 857   next >   >>  

Tower Hobbies Get Coupon Codes Brands  
Login
Message << Older Topic   Newer Topic >>
RE: Welcome to Club SAITO ! - 12/31/2011 11:50 PM   
FNQFLYER


 

Posts: 521
Score: 110
Joined: 4/24/2010
Last Login: 6/18/2013
From: Cairns, AUSTRALIA
Status: offline 		Re twins being down on power over singles, I agree (in principal).  If you want to extract more power out of your twin consider the blue printing route.  Used all the time in performance engines of all sorts.  Basically it is ensuring each cylinder is the mate of the rest (that is identical in capacity, valve spring tension etc), flow the carbys (or ensure equal flow from single carby to each cylinder) and so on.
I used to do this all the time with my race cars but only attempted it a couple of times with my multile cylinder model a/c engines.  Got lots more important things to do and if you want more power it is really down to how many "cubic" dollars do you have to buy the HP you require.  I am off to enjoy new cut off saw, arbour press and lathe which I hope will some how magically produce the replacement bits foe my K&B 3.5 cc racing engine as well as some con rods and crankshafts for my Amco 3.5cc diesel.  All needed for next years 30 year do at the SAM 1788 Easter comp at Canowindra.  Consider models resurected from over 30 years ago with lots of open rocker Saitos (as fitted then) being flown in open competition amongst a group of ever diminishing "old Farts"
Enough ramblings way back to "the wet" and my new toys

_____________________________

Club Saito member 710

Hide Signatures

(in reply to w8ye)
       Post #: 21226

RE: Welcome to Club SAITO ! - 1/6/2012 9:24 PM   
tenspeed59


 

Posts: 50
Score: 100
Joined: 1/11/2010
Last Login: 6/1/2013
From: Penrose, CO, USA
Status: offline 		OK gang.......got a question for anyone that can help us out......Im workin on a fellow club members SAITO 120 S nitro.....finally got both high and low needles set perfectly......valves adjusted perfect now......and now it idles at 1850 consistently and runs up at 8200 rpm all day long......while you have the plane setting on the stand horizontal....now pick it up and run it up to full throttle and put the plane in nose up attitude......and the engine leans out a bit slightly and stumbles.....now put it nose down about 20 degs down and further.....and it loads up IMMENSELY and runs pig rich and reallllllly tries to stumble and die........half throttle setting and hold it up nose up.....and it reallllllyyyyy tries leaning out....and then nose down.....and it will just get extremely rich and all but die .......we did not try the nose up or down attitude at idle.......just half and full throttle settings........HELLLPPPPP!!!!

new lines....new stopper......new tank.......new clunk.......the whole enchhilada.......3 line fuel system just for FYI......so whats the next step???


_____________________________

"There are more planes in the ocean than submarines in the sky"
Club Saito Member # 777, Cub Brotherhood #124

Hide Signatures

(in reply to FNQFLYER)
       Post #: 21227

RE: Welcome to Club SAITO ! - 1/6/2012 11:17 PM   
SU-31 flyer



Posts: 65
Score: 100
Joined: 8/22/2002
Last Login: 6/17/2013
From: Burwell, NE, USA
Status: offline 		What is the tank position in relation to the carb? If it's low it could show those signs.

Hide Signatures

(in reply to tenspeed59)
       Post #: 21228

RE: Welcome to Club SAITO ! - 1/7/2012 1:06 AM   
tenspeed59


 

Posts: 50
Score: 100
Joined: 1/11/2010
Last Login: 6/1/2013
From: Penrose, CO, USA
Status: offline
quote:

ORIGINAL: SU-31 flyer

What is the tank position in relation to the carb? If it's low it could show those signs.


OK I should have stated in the first posting that the tank is located approximately 3-4 inches BELOW the carb throat level......that was the verrrrrrrry first thing i noticed about the setup and stated to the owner that was not a prime location for the tank at all.......but......now get this.......it works MUCH and I cannot tell you how MUCCCCCCHHHHH much much better it works there that low......and yes I know it is not good......but................that is the frustration of this problem I'm fighting.....now hold the tank at mid level approx an 1.5" below the carb throat and it gets worse.......either level or nose up or down.......and move the tank higher to the "quote......normal.....unquote" slightly below or level at the throat of the carb and........YUP you guessed.......much worse throughout the entire operational spectrum.......GRRRR!!!!!

Not alot on this problem makes a lick of sense at all......but I will figure it out.......come heck high water or flood.....as the saying goes.

_____________________________

"There are more planes in the ocean than submarines in the sky"
Club Saito Member # 777, Cub Brotherhood #124

Hide Signatures

(in reply to SU-31 flyer)
       Post #: 21229

RE: Welcome to Club SAITO ! - 1/7/2012 3:17 AM  1 votes
hsukaria


 

Posts: 1680
Score: 185
Joined: 2/22/2007
Last Login: 6/14/2013
From: Dearborn, MI, USA
Status: offline 		If the tank is really low compared to the carb needle, you end up opening the needles (richen) to get enough fuel when the plane is level. Raising the nose up causes the tank level to get even lower, but dropping the nose down or inverting the plane causes rapid flooding. I had a plane like that with a 2-stroke. I ended up changing the engine orientation to inverted to lower the throttle relative to the carb. That helped.

_____________________________

Content, but not Complacent.
Saito Club Member #765

Hide Signatures

(in reply to tenspeed59)
       Post #: 21230

RE: Welcome to Club SAITO ! - 1/7/2012 11:32 AM   
Old Fart


 

Posts: 2097
Score: 158
Joined: 4/27/2008
Last Login: 6/19/2013
From: Perth, AUSTRALIA
Status: offline 		What huk is saying makes good sense to me.Tenspeed jump on your pushbike and cycle 5 miles flatout,they say lots of exercise is good for stress,then shout yourself a nice meal in a good eat out house..couple a vino's later and the world's all good mate,cheers

_____________________________

Watch out for the ground eh?

Hide Signatures

(in reply to hsukaria)
       Post #: 21231

RE: Welcome to Club SAITO ! - 1/7/2012 7:59 PM   
kwblake


 

Posts: 328
Score: 111
Joined: 8/24/2009
Last Login: 6/18/2013
From: Gunton, MB, CANADA
Status: offline 		Hey Folks.  Sign me up.  A couple of days ago, I bought my first 4 stroke, an FA 100.  Going into my Four Star, if I ever get it finished.  Haven't decided if I'm going horizontal or inverted.  I love the look of a four stroke, with the exposed pushrod tubes and rocker covers. I guess this is partly due to my old motorcycle days. ( Harley )  So I'm sort of leaning toward the horizontal, so you can still see some of what I think is beautiful.  Any thoughts?   Just took it out of the box AGAIN !!!  Dern that thing looks great!!!!!



_____________________________

Kevin


Hide Signatures

(in reply to Old Fart)
       Post #: 21232

RE: Welcome to Club SAITO ! - 1/7/2012 8:48 PM   
flycatch


 

Posts: 1338
Score: 118
Joined: 7/25/2002
Last Login: 6/18/2013
From: Barstow, CA, USA
Status: offline 		I have a problem and need advice. I purchased a Saito 220 NIB and proceeded to bench test it. When I advance past 1/2 throttle setting the engine backfires violently throwing the complete spinner assembly. Is this engine defective?

Hide Signatures

(in reply to SigMan)
       Post #: 21233

RE: Welcome to Club SAITO ! - 1/7/2012 9:10 PM   
SU-31 flyer



Posts: 65
Score: 100
Joined: 8/22/2002
Last Login: 6/17/2013
From: Burwell, NE, USA
Status: offline
quote:

ORIGINAL: tenspeed59

OK gang.......got a question for anyone that can help us out......Im workin on a fellow club members SAITO 120 S nitro.....finally got both high and low needles set perfectly......valves adjusted perfect now......and now it idles at 1850 consistently and runs up at 8200 rpm all day long......while you have the plane setting on the stand horizontal....now pick it up and run it up to full throttle and put the plane in nose up attitude......and the engine leans out a bit slightly and stumbles.....now put it nose down about 20 degs down and further.....and it loads up IMMENSELY and runs pig rich and reallllllly tries to stumble and die........half throttle setting and hold it up nose up.....and it reallllllyyyyy tries leaning out....and then nose down.....and it will just get extremely rich and all but die .......we did not try the nose up or down attitude at idle.......just half and full throttle settings........HELLLPPPPP!!!!

new lines....new stopper......new tank.......new clunk.......the whole enchhilada.......3 line fuel system just for FYI......so whats the next step???




Is this an older saito? The old Saito's carb would not let enought 2 cycle fuel to the engine had to open needle alot. Put 4 cycle fuel in them would make them run like a top. The carb were changed don't remember quite when so people could use same fuel in both their 2 & 4 cycle engines.

I worked for hours on a friends Old Saito before I thought to ask what fuel he had in it. Put some of my Sig 4 cycle in it and had it running in minutes.

Hide Signatures

(in reply to tenspeed59)
       Post #: 21234

RE: Welcome to Club SAITO ! - 1/7/2012 9:15 PM   
SU-31 flyer



Posts: 65
Score: 100
Joined: 8/22/2002
Last Login: 6/17/2013
From: Burwell, NE, USA
Status: offline
quote:

ORIGINAL: flycatch

I have a problem and need advice. I purchased a Saito 220 NIB and proceeded to bench test it. When I advance past 1/2 throttle setting the engine backfires violently throwing the complete spinner assembly. Is this engine defective?



Most likley just needs carb set correctly. Increase thd slow an see if smokes alot then it's rich lean alittle. If no smoke it may be lean richen a little till you can get to full thd and set it.

Hide Signatures

(in reply to flycatch)
       Post #: 21235

RE: Welcome to Club SAITO ! - 1/7/2012 10:09 PM   
flycatch


 

Posts: 1338
Score: 118
Joined: 7/25/2002
Last Login: 6/18/2013
From: Barstow, CA, USA
Status: offline 		Thanks, for the information but I'm not new to four strokes. I have three Saitos 1.8 and one OS 1.2. I have never experienced anything like this with the other engines. I'm beginning to feel this this new year will haunt me with engine problems be they glow or gas. I have a Zenoah EI 20cc gas engine that is drawing air bubbles on the feed line. I ordered a new tank assembly and hopefully this will cure the problem.

Hide Signatures

(in reply to SU-31 flyer)
       Post #: 21236

RE: Welcome to Club SAITO ! - 1/8/2012 12:33 AM   
Old Fart


 

Posts: 2097
Score: 158
Joined: 4/27/2008
Last Login: 6/19/2013
From: Perth, AUSTRALIA
Status: offline 		If it's NIB they come from the factory with the HSN fully closed but i'm assuming you have wound the main needle about four turns out?

_____________________________

Watch out for the ground eh?

Hide Signatures

(in reply to flycatch)
       Post #: 21237

RE: Welcome to Club SAITO ! - 1/8/2012 12:46 AM   
jknox


 

Posts: 90
Score: 105
Joined: 2/21/2011
Last Login: 4/23/2013
From: Edmond, OK, USA
Status: offline
quote:

ORIGINAL: flycatch

I have a problem and need advice. I purchased a Saito 220 NIB and proceeded to bench test it. When I advance past 1/2 throttle setting the engine backfires violently throwing the complete spinner assembly. Is this engine defective?


My 125 did this twice during static break in, and it was so loud and violent the first time it happened I thought it threw the rod and destroyed the engine.  It hasn't done it again since break in and subsequent leaning of the LS needle and it didn't seem to cause any damage - It runs great now.

Hide Signatures

(in reply to flycatch)
       Post #: 21238

RE: Welcome to Club SAITO ! - 1/8/2012 12:49 AM   
flycatch


 

Posts: 1338
Score: 118
Joined: 7/25/2002
Last Login: 6/18/2013
From: Barstow, CA, USA
Status: offline 		Your username fits your reply.

Hide Signatures

(in reply to Old Fart)
       Post #: 21239

RE: Welcome to Club SAITO ! - 1/8/2012 1:40 AM   
w8ye



Posts: 36486
Score: 318
Joined: 12/11/2001
Last Login: 6/19/2013
From: Shelby, OH, USA
Status: offline 		A new engine with extra internal drag and less compression, because the rings are not seated, will require to be run with a extra rich mixture until the parts get worn into each other. Then the mixture can be set leaner but the smoke trail sound be maintained.

_____________________________

Attended the CutFinger Institute of DirtNap University for years but never did graduate....
Recipient, Mangledhand award August 2008
Club Saito Member #7
Original AMA #31261

Hide Signatures

(in reply to flycatch)
       Post #: 21240

RE: Welcome to Club SAITO ! - 1/8/2012 1:48 AM   
w8ye



Posts: 36486
Score: 318
Joined: 12/11/2001
Last Login: 6/19/2013
From: Shelby, OH, USA
Status: offline 		If the low speed needle is set too lean, the mixture at high speed can go lean no matter how far out the high speed needle due to the design of the carb.

You can have the engine sounding rich at low mid throttle. Advance to full throttle and the high speed mixture may, in fact, actually be lean.

Watch yourself carefully about the relative mixture at the different speeds.

To prevent some of this, Hobbsey recomends having the low speed mixture needle set rather rich in the beginning.

The first step is to set the high speed needle to peak but just keep the throttle there for a second.

Then adjust the low speed mixture as lean as you can get it with the engine still being able to take the gas without backfire.

You can usually hear the begining of a backfire before one actually happens, Back off at this time and richen the needle.

Some new Saitos with rings not seated and the mixture set rich will get very juicy and wet all over with oil.


_____________________________

Attended the CutFinger Institute of DirtNap University for years but never did graduate....
Recipient, Mangledhand award August 2008
Club Saito Member #7
Original AMA #31261

Hide Signatures

(in reply to w8ye)
       Post #: 21241

RE: Welcome to Club SAITO ! - 1/9/2012 2:46 AM   
Mein Duff



Posts: 879
Score: 110
Joined: 5/22/2009
Last Login: 6/18/2013
From: Santa Rosa, CA, USA
Status: offline 		Hey Guys interesting stuff, I bought a 220 Glo also and had the prop and spinner explode of the engine after back firing...I immediately bought the (Dubro I think) locking nut for double security.....1 minute before I was leaning over the engine playing with the main jet with the prop 7-8 inches from my juggler vein .....I shudder to think if it had happened then...

I little of track here...I just picked up an older Saito .45 which obviously needs a new main bearing...where's the best place to get a new one?

_____________________________

Fleet Brotherhood #5
Half A Wing, Three Engines and A Prayer

Hide Signatures

(in reply to w8ye)
       Post #: 21242

RE: Welcome to Club SAITO ! - 1/9/2012 3:12 AM  1 votes
Hobbsy



Posts: 14621
Score: 650
Joined: 12/2/2001
Last Login: 6/19/2013
From: Colonial Beach, VA, USA
Status: online 		The 2.20 comes with double nuts that will not back off even when a severe backfire occurs. The prop will be loose after the backfire due to the serrated face on the prop driver removing wood or plastic from the back of the prop.

_____________________________

A young man knows the rules and an old man knows the exceptions.

Club Saito member #5

Hide Signatures

(in reply to Mein Duff)
       Post #: 21243

RE: Welcome to Club SAITO ! - 1/9/2012 5:59 AM   
Mein Duff



Posts: 879
Score: 110
Joined: 5/22/2009
Last Login: 6/18/2013
From: Santa Rosa, CA, USA
Status: offline 		Yes indeed...this was new wooden prop...I usually use fiberglass reinforced props ( or what ever they are made of)...I think the wood had compressed from the previous runs and loosened...stupid me for not thinking to re-tighten inbetween.....

_____________________________

Fleet Brotherhood #5
Half A Wing, Three Engines and A Prayer

Hide Signatures

(in reply to Hobbsy)
       Post #: 21244

RE: Welcome to Club SAITO ! - 1/9/2012 1:05 PM   
Old Fart


 

Posts: 2097
Score: 158
Joined: 4/27/2008
Last Login: 6/19/2013
From: Perth, AUSTRALIA
Status: offline 		There's a vid on youtube of some european guy guy twisting needles really quick while tuning his engine,it backfires and gets him good in the chest area..scared me

_____________________________

Watch out for the ground eh?

Hide Signatures

(in reply to Mein Duff)
       Post #: 21245

RE: Welcome to Club SAITO ! - 1/9/2012 5:45 PM   
charlie1960


 

Posts: 461
Score: 165
Joined: 12/25/2007
Last Login: 4/7/2013
From: Palestine, TX, USA
Status: offline 		RCBearings.com

they'll take good care of ya.



gotta watch those pesky props....


_____________________________

AMA 908262
Club Saito 622

Hide Signatures

(in reply to Mein Duff)
       Post #: 21246

RE: Welcome to Club SAITO ! - 1/9/2012 7:55 PM   
Sharpeye22



Posts: 281
Score: 120
Joined: 5/9/2007
Last Login: 6/18/2013
From: Kirbyville, TX, USA
Status: offline 		After watching those you-tube vids, and the article in RCM with the end blade of a prop barried in the wooden run-up table, it made a beliver of me.  I use to bend over the front of the plan to adjust the needles, I now only do it from behind the plane.  The only time I am in front of the plane is when I am starting it.
 


_____________________________

Larry
Saito Club #692

Hide Signatures

(in reply to charlie1960)
       Post #: 21247

RE: Welcome to Club SAITO ! - 1/9/2012 8:57 PM   
Mein Duff



Posts: 879
Score: 110
Joined: 5/22/2009
Last Login: 6/18/2013
From: Santa Rosa, CA, USA
Status: offline 		Thanks Charlie, Called RC Bearings...Order is in the works already.. mega

_____________________________

Fleet Brotherhood #5
Half A Wing, Three Engines and A Prayer

Hide Signatures

(in reply to charlie1960)
       Post #: 21248

RE: Welcome to Club SAITO ! - 1/10/2012 2:00 AM   
hsukaria


 

Posts: 1680
Score: 185
Joined: 2/22/2007
Last Login: 6/14/2013
From: Dearborn, MI, USA
Status: offline
quote:

ORIGINAL: Sharpeye22

After watching those you-tube vids, and the article in RCM with the end blade of a prop barried in the wooden run-up table, it made a beliver of me.  I use to bend over the front of the plan to adjust the needles, I now only do it from behind the plane.  The only time I am in front of the plane is when I am starting it.
 

This is the ONLY way to do it!!! NEVER lean over the engine to adjust it. ALWAYS walk around after it starts and adjust it from behing. The applies to all engines.

_____________________________

Content, but not Complacent.
Saito Club Member #765

Hide Signatures

(in reply to Sharpeye22)
       Post #: 21249

RE: Welcome to Club SAITO ! - 1/21/2012 4:13 PM   
blw



Posts: 7677
Score: 655
Joined: 3/15/2004
Last Login: 6/19/2013
From: Opelika, AL, USA
Status: offline 		We've got 2 new members who contacted me via PM. They are:

rxwarrior #779
kwblake #780

_____________________________

The ultimate responsibility of pilots is to fulfill the dreams of the countless millions who can only stare skyward...and wish.

"It doesn''t take but one Auburn man to be a majority" -
Coach Pat Dye

Hide Signatures

(in reply to hsukaria)
       Post #: 21250

Page:   <<   < prev  848 849 [850] 851 852 853 854 855 856 857   next >   >>  
All Forums >> Glow Engines, Gas Engines, Fuel &amp; Mfg Support Forums >> Glow Engines >> RE: Welcome to Club SAITO !
Page: <<   < prev  848 849 [850] 851 852 853 854 855 856 857   next >   >>  




Jump to:


 
Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

RC Universe is a service of Internet Brands, Inc. Copyright © 2001-2013.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America


0.984RCU1