Glow Engines Discuss RC glow engines

Welcome to Club SAITO !

Old 08-22-2011, 01:51 PM
  #20626
clytle374
 
Join Date: Jul 2003
Location: Near Princeton, WV
Posts: 157
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

I got one on the way, and got free shipping since I got my Dad to order the Saito 82 for his cub.

Quote:
ORIGINAL: Hobbsy

Be careful drilling out the hole in the steel part of the velocity stack, it can take nasty chunks out of your finger fast if it comes loose from whatever you clamp it onto.
I've got a 100 so i shouldn't need to mod it. But yeah, I can see the happening. I'm a machinist by trade and we're pretty good at avoiding such incidents. Hint: I learned from past experiences

Work just called and canceled my free days for the rest of the week, between that and laying down 5 acres of hay today I guess I won't get to play musical exhaust parts this week either.

Thanks
Cory
clytle374 is offline  
Reply With Quote
Old 08-22-2011, 02:53 PM
  #20627
RC Specialties
 
Join Date: Dec 2006
Location: Zachary, LA
Posts: 477
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

Hi Dave,

These are not on the site. They were a special order for a customer and I had a few extra made. They all have a 12mm thread.

Jim


Cory,
I am not sure how much back pressure you would get if you tapped this fitting.
RC Specialties is offline  
Reply With Quote
Old 08-22-2011, 07:58 PM
  #20628
blw
Moderator
 
blw's Avatar
 
Join Date: Mar 2004
Location: Opelika, AL
Posts: 9,178
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

BTW, I checked on my order for a metal backplate for the 72/82 at the lhs. Still on backorder!
blw is offline  
Reply With Quote
Old 08-22-2011, 07:58 PM
  #20629
blw
Moderator
 
blw's Avatar
 
Join Date: Mar 2004
Location: Opelika, AL
Posts: 9,178
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

BTW, I checked on my order for a metal backplate for the 72/82 at the lhs. Still on backorder!
blw is offline  
Reply With Quote
Old 08-22-2011, 10:48 PM
  #20630
Daniel-EL
 
Daniel-EL's Avatar
 
Join Date: Mar 2005
Location: Maumee, OH
Posts: 359
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

I have a first run Saito 150, bought in the early '90's, which has been bench run (sort of) only, never flown. This is the most ornery engine I've ever owned. It throws the spinner, prop nuts and prop almost every time I try to start it. This after double-nutting the prop, too. I have never been able to get it to run long enough to get the needles set properly because, once I get it started and start tweaking the needle valve I will get a mouth full of spinner and prop nuts from the inevitable back fire. I thought about selling it, but I'm afraid I'd just be passing along this problem to somebody else in bad faith. Does anyone have any advice about taming this beast before I consign it to the junk heap?[:@]
Daniel-EL is offline  
Reply With Quote
Old 08-22-2011, 11:41 PM
  #20631
The Raven
 
The Raven's Avatar
 
Join Date: Jan 2005
Location: Melbourne, AUSTRALIA
Posts: 962
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !


Quote:
ORIGINAL: Daniel-EL

I have a first run Saito 150, bought in the early '90's, which has been bench run (sort of) only, never flown. This is the most ornery engine I've ever owned. It throws the spinner, prop nuts and prop almost every time I try to start it. This after double-nutting the prop, too. I have never been able to get it to run long enough to get the needles set properly because, once I get it started and start tweaking the needle valve I will get a mouth full of spinner and prop nuts from the inevitable back fire. I thought about selling it, but I'm afraid I'd just be passing along this problem to somebody else in bad faith. Does anyone have any advice about taming this beast before I consign it to the junk heap?[:@]
If it's spitting spinners and/or props, that is generally an indication of running the engine excessively lean (low and/or high speed needle). Richen it right up and then try getting the needles right.
The Raven is offline  
Reply With Quote
Old 08-23-2011, 12:15 AM
  #20632
Old Fart
 
Old Fart's Avatar
 
Join Date: Apr 2008
Location: Perth, AUSTRALIA
Posts: 3,506
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

Good advice raven.I've just begun running the new fa200r3 radial,sounds sweeter than the best looking green eyed redhead i ever saw.Problem is it nearly always runs on just two cylinders.It's had three short five minute runs at or below four thousand.After the first run i popped the rocker cover off the cold cylinder and the intake pushrod had popped out of it's cup,fixed that and it still won't fire on that pot,rechecked the valves too.I was 5 turns out on the main as per the book,so tried as low as three and can't clear the cylinder.Plugs are good,fresh fuel...what am i missing??..apart from my pretty green eyed redhead
Old Fart is offline  
Reply With Quote
Old 08-23-2011, 12:21 AM
  #20633
mike109
 
mike109's Avatar
 
Join Date: Jul 2004
Location: Dubbo, New South Wales, AUSTRALIA
Posts: 1,484
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

G'day

You may well have one of the early High Compression engines. They were built to run without or with minimal nitro. You can get them tamed by finding an engine expert who will put a shim (15 thou I think) under the cylinder. This makes them much tamer. A friend of mine has one which had all the symptoms you describe but when he had the compression lowered it was a different engine.

I have one of the later low compression ones and it is a big softy to run. Just get it wet with a prime, one back flip and it starts. Never throws props either.

The only Saito I have had throw a prop was a Saito 30 which was sitting for several months and when I tried to start it I under primed it and it tossed the prop off. Never did find the nuts.

Another I saw toss props was trying to tell us that its conrod was about to seize on the crank pin. It did seize soon after and tossed the prop in mid air. Quite impressive. It was a very old Saito 65 with hundreds of hours on it. It is about to get a new crank, conrod and be back in the air. Possibly some bearing too.

I am sure someone will chime in here with more detailed advice on your 150.

In the mean time, try it with zero nitro or no more than 5% and you might find it a completely different beast.

Mike in Oz

mike109 is offline  
Reply With Quote
Old 08-23-2011, 02:32 AM
  #20634
The Raven
 
The Raven's Avatar
 
Join Date: Jan 2005
Location: Melbourne, AUSTRALIA
Posts: 962
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !


Quote:
ORIGINAL: Old Fart

Good advice raven.I've just begun running the new fa200r3 radial,sounds sweeter than the best looking green eyed redhead i ever saw.Problem is it nearly always runs on just two cylinders.It's had three short five minute runs at or below four thousand.After the first run i popped the rocker cover off the cold cylinder and the intake pushrod had popped out of it's cup,fixed that and it still won't fire on that pot,rechecked the valves too.I was 5 turns out on the main as per the book,so tried as low as three and can't clear the cylinder.Plugs are good,fresh fuel...what am i missing??..apart from my pretty green eyed redhead
I'm no Saito expert but a club member had an R3 radial (not sure the size). One cylinder dropping out was very common until the engine was fully run in. Despite lots of bench running with and without glow, he still needed to run glow drivers for the first few flights. Running the engine in whilst in flight seemed to best way to sold the dropped cylinder problem.

I'm sure owners of Saito radials can provide some more informed advice.
The Raven is offline  
Reply With Quote
Old 08-23-2011, 05:55 AM
  #20635
barry wetherell
 
Join Date: Sep 2007
Location: port hedlandwestern australia, AUSTRALIA
Posts: 66
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

HI, only just recently, got into Saito's, couple of 56's rebuilt one (mate sold it to me with a bent crank) 2 45 and a rebuilt 45s was a 45 but i bought all the bits to make it a 45s, not run yet, I am now in the process of conveting a 180 over to gas (petrol) , that's earmarked for a 80 " "Firefly " Vanguard models kit, any thoughts guys on the coversion????
Barry
barry wetherell is offline  
Reply With Quote
Old 08-23-2011, 05:56 AM
  #20636
barry wetherell
 
Join Date: Sep 2007
Location: port hedlandwestern australia, AUSTRALIA
Posts: 66
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

HI, only just recently, got into Saito's, couple of 56's rebuilt one (mate sold it to me with a bent crank) 2 45 and a rebuilt 45s was a 45 but i bought all the bits to make it a 45s, not run yet, I am now in the process of conveting a 180 over to gas (petrol) , that's earmarked for a 80 " "Firefly " Vanguard models kit, any thoughts guys on the conversion????
Barry
barry wetherell is offline  
Reply With Quote
Old 08-23-2011, 06:41 AM
  #20637
Hill202
 
Hill202's Avatar
 
Join Date: Jan 2004
Location: Peachtree City, GA
Posts: 1,351
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

Does anyone know where I can find pistons for a Saito FA90T MK2 ?

Horizon does not have them.

Thanks
Hill202 is offline  
Reply With Quote
Old 08-23-2011, 06:45 AM
  #20638
w8ye
Moderator
 
w8ye's Avatar
 
Join Date: Dec 2001
Location: Shelby, OH
Posts: 37,526
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

The 90T uses the same pistons as the 45 MK II?

Unless a piston is badly damaged, I'm sure you engine will run fine with the original pistons.
w8ye is offline  
Reply With Quote
Old 08-23-2011, 07:07 AM
  #20639
barry wetherell
 
Join Date: Sep 2007
Location: port hedlandwestern australia, AUSTRALIA
Posts: 66
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

Have you checked out E/Bay???? for 45 pistons, Phils hobbies might have
Barry
barry wetherell is offline  
Reply With Quote
Old 08-23-2011, 08:01 AM
  #20640
Daniel-EL
 
Daniel-EL's Avatar
 
Join Date: Mar 2005
Location: Maumee, OH
Posts: 359
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !


Quote:
ORIGINAL: mike109

You may well have one of the early High Compression engines. They were built to run without or with minimal nitro. You can get them tamed by finding an engine expert who will put a shim (15 thou I think) under the cylinder. This makes them much tamer. A friend of mine has one which had all the symptoms you describe but when he had the compression lowered it was a different engine.

I have one of the later low compression ones and it is a big softy to run. Just get it wet with a prime, one back flip and it starts. Never throws props either.

In the mean time, try it with zero nitro or no more than 5% and you might find it a completely different beast.

Mike in Oz
Thanks for your response, Mike, it makes perfect sense. Yes the compression is brutal on this early model. I'll see if I can get a shim installed somewhere.

Dan
Daniel-EL is offline  
Reply With Quote
Old 08-23-2011, 09:40 AM
  #20641
Hobbsy
 
Hobbsy's Avatar
 
Join Date: Dec 2001
Location: Colonial Beach, VA
Posts: 17,089
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

Dan, I have that same engine and a little education on your part will work wonders, it's a great engine with big %alls. When starting it be very careful to not get it too rich and then once started sneak up on the peak rpm very cautiously until you learn where it is. I like to sart mine with a starter without prining it in any way.. Set the throttle about 1/8 above idle and it will pick up the fuel and just gently start. If it is from about 1991 the compression ratio is 14.4 to 1 and will run really well on 5% or 10% nitro. It will run on 15 or 20% but extra caution is needed. I also have an .80 like that, it will actually run on Davis Diesel fuel unaided. I've never tried the 1.50 on Davis fuel but I'm sure it would fire right up on it. If you talk to w8ye and trust me, ship it to me and I'll break it in and set it up for you. No charge.
Hobbsy is offline  
Reply With Quote
Old 08-23-2011, 02:11 PM
  #20642
clytle374
 
Join Date: Jul 2003
Location: Near Princeton, WV
Posts: 157
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

Just realized that we never hit submit order so the order never went through.While we are at it what stack should we get for the 82?

Thanks
Cory
clytle374 is offline  
Reply With Quote
Old 08-23-2011, 02:24 PM
  #20643
triumphman49
 
Join Date: Sep 2005
Location: Decatur, AL
Posts: 364
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

Hello Barry, You might want to review this conversion thread for 4-strokes http://www.rcuniverse.com/forum/m_93..._6/key_/tm.htm there are a few other threads & many have accomplished this. C & H Ignitions is up and running again. Great new smaller & lighter ignition that is compatible with lipo bateries. Contact Adrain Ciulei who makes the new ignitions and has also posted on these conversion threads with some really creative work. He has also converted a FA150 adrain4u@msn.com Good Luck, & keep in touch as many here are familiar with the conversion process.

Mike Brennan
Club Saito #723
T-man49 in Alabama
triumphman49 is offline  
Reply With Quote
Old 08-23-2011, 03:59 PM
  #20644
frets24
 
frets24's Avatar
 
Join Date: Dec 2007
Location: charlotte, NC
Posts: 1,242
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

Quote:
ORIGINAL: w8ye

The 90T uses the same pistons as the 45 MK II?

Unless a piston is badly damaged, I'm sure your engine will run fine with the original pistons.
I have been through a lot of motors and have not yet found one that needed pistons unless a bearing cage had shattered or someone ran it extremly lean. Never from just wearing out from normal use.

As w8ye said above. If no gouges or chunks missing, clean 'em and run with what you've got.



On another note; Still fighting this 91s. Pulled the jug again and inspected the valves. Seats look good but both valves have quite a groove worn in them. They seemed to seal ok but I've ordered new valves, springs and tappets any way. Cam looks good so I'll keep it, but after looking through some the Esteemed Wm Robisons (and co.) posts, tips and observations I'm replacing those other parts of the valve train.

Hopefully I'll find my missing 1000-1500 RPM there.

Am I correct in determining that the consensus among the remaining "Saito seat of knowledge and expertise" (w8ye, hobbsy and blw) is NOT to lap the valves in? Just clean the seats with a fat pencil eraser in a drill?

frets24 is offline  
Reply With Quote
Old 08-23-2011, 04:11 PM
  #20645
Hill202
 
Hill202's Avatar
 
Join Date: Jan 2004
Location: Peachtree City, GA
Posts: 1,351
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

Thanks for the tips about pistons. I thought since I am replacing rings, it would be a good idea to replace the pistons. One ring broke as I was taking it off. It seemed to just crumble. It was very brittle.
Hill202 is offline  
Reply With Quote
Old 08-23-2011, 05:22 PM
  #20646
GaGeeBees
 
GaGeeBees's Avatar
 
Join Date: Sep 2004
Location: Fayetteville, GA
Posts: 1,413
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !


Quote:
ORIGINAL: Old Fart

Good advice raven.I've just begun running the new fa200r3 radial,sounds sweeter than the best looking green eyed redhead i ever saw.Problem is it nearly always runs on just two cylinders.It's had three short five minute runs at or below four thousand.After the first run i popped the rocker cover off the cold cylinder and the intake pushrod had popped out of it's cup,fixed that and it still won't fire on that pot,rechecked the valves too.I was 5 turns out on the main as per the book,so tried as low as three and can't clear the cylinder.Plugs are good,fresh fuel...what am i missing??..apart from my pretty green eyed redhead
Let me guess which cylinder keeps going cold... facing the front of the engine, is it the one on the lower left? I've had the same problem with a 170R3 and it requires a glow driver for any throttle setting below 1/3 (more when you're running it rich for break in). I use SonicTronics/McDaniel glow drivers on all my Saito radials and use only NiCd batteries. NiMH will not work.
GaGeeBees is offline  
Reply With Quote
Old 08-23-2011, 07:11 PM
  #20647
Old Fart
 
Old Fart's Avatar
 
Join Date: Apr 2008
Location: Perth, AUSTRALIA
Posts: 3,506
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

Thanks for that mate.
Old Fart is offline  
Reply With Quote
Old 08-23-2011, 07:19 PM
  #20648
Old Fart
 
Old Fart's Avatar
 
Join Date: Apr 2008
Location: Perth, AUSTRALIA
Posts: 3,506
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

Yes it's the lower left cylinder,just worried about doing some damage.Temps feel fine on the other two while running.A local magazine has run one and i can't get anywhere near what he says to do at the moment.They ran 20% nitro and 22% mix of syn and castor,against my ten and 18% mix at 5000 for the first fifteen minutes.I might hop out to the shed and up the nitro to 20% and set the rpm to five thousand,will up the oil to 20% as well.Not suffering from a voltage drop across multiple glow drivers am using a single stick 2200mh nimh on each cylinder.
Old Fart is offline  
Reply With Quote
Old 08-23-2011, 08:02 PM
  #20649
retransit
 
retransit's Avatar
 
Join Date: Apr 2004
Location: DeBary, FL
Posts: 1,329
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

Why won't NiMh work?

NiMh works fine on my 4 cylinder engine. McDaniel says to use either one on their latest 4 cylinder driver.

Bob
retransit is offline  
Reply With Quote
Old 08-23-2011, 10:59 PM
  #20650
Old Fart
 
Old Fart's Avatar
 
Join Date: Apr 2008
Location: Perth, AUSTRALIA
Posts: 3,506
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Welcome to Club SAITO !

I don't run on board glo with any of my singles or the 182 twin,they run fine like that.I have read some threads here tho and it seems to be a world of pain for some.If anyone here can recommend a proven setup you can run off the onboard flight pack i would be pleased to hear of it as i may need to run one on the 200r3 initially.It's going into a blackhorse 120 size texan and what with retracts and all i'll have my hands busy enough on the test flight without worrying about a deadstick,we have short runway approaches here.I've just run a litre of 20% nitro 15% klotz and 5% castor thru the engine and it's firing on all three above 4000rpm.Last run was at 6500 and i could take the glow stick i'd left on one cylinder off,no problems.Just how much bench time do you guys think i'll need for it to settle down a bit and does anyone have an approx main needle setting for the 170 or 200?.Reason i ask is that the engine test reviewer said he was running 4.75 turns out,figured that may be a typo?? but will want to start leaning it off shortly.Cheers
Old Fart is offline  
Reply With Quote


Thread Tools
Search this Thread
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 01:11 PM.