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RE: Welcome to Club SAITO ! - 8/25/2011 5:19 AM   
FNQFLYER


 

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From: Cairns, AUSTRALIA
Status: online 		As I said run it as rich as it will stand on full throttle.  This usually results in a Saito 65 for example running at around 4000rpm. At this RPM with a very rich mixture the engine doesn't get hot at all.  With the throttle wide open you then increase the rpm by leaning it.  This method gives max cooling, max lubrication for the first run.  Then you start with the ups and downs etc with the second and successive runs
This works for us, BTB it is a modification (slightly) to the instructions given in our data.
I am puzzled by the difference in operating instructions.  Ours come from Saito and the US ones appear to be generated by Horizon Hobbies.  This opens another can of worms when one starts playing with the gas engines but that is another matter totally on which I cannot yet comment based on experience that is   

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RE: Welcome to Club SAITO ! - 8/25/2011 12:52 PM   
Hobbsy



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Status: online 		There is nothing in a Saitos construction that can benefit from heat cycling, also its much better to have the engine components close to their normal operating temp to seat in to each other at normal tolerances.

< Message edited by Hobbsy -- 8/25/2011 1:49 PM >

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RE: Welcome to Club SAITO ! - 8/25/2011 1:30 PM   
Old Fart


 

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Status: offline 		Hello guys and many many thanks for your comments,they were good and easier to understand

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RE: Welcome to Club SAITO ! - 8/25/2011 1:50 PM   
Hobbsy



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Status: online 		OF, are you being just a might facitious?

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RE: Welcome to Club SAITO ! - 8/25/2011 4:06 PM   
blw



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Status: offline 		The only hard rule I go by is to keep the engine at, or below 4k on the first tank. It is already wearing, changing balances, tolerances, etc and getting everything mated together.

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RE: Welcome to Club SAITO ! - 8/25/2011 7:59 PM   
Daniel-EL



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Status: online 		The 0.015 decompression shims for the Saito 150 were once offered by C&H Electronics, but they are no longer in business. Anybody have a suggestion where they might now be found now and purchased?

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RE: Welcome to Club SAITO ! - 8/25/2011 9:02 PM   
w8ye



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Status: offline 		It is not a critical area.

You can make a gasket from gasket material from the auto parts.

Trim out the i.d. mount the cylinder and then trim off the outside with a #11 Exacto blade.


< Message edited by w8ye -- 8/25/2011 11:23 PM >

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RE: Welcome to Club SAITO ! - 8/25/2011 10:49 PM   
Old Fart


 

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RE: Welcome to Club SAITO ! - 8/26/2011 7:02 AM   
JariV


 

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From: Klaukkala, FINLAND
Status: offline 		Hello,

if someone is having trouble with Saito radial engines dropping a cylinder during flight then there is a cure for that. I had this problem with my FA90R3 radial dropping a cylinder during flight and with throttle positions from half throttle to full throttle. I am using Keleo exhaust ring. The reason is that the engine is not getting enough fuel in high rpms. I added a Perry oscillating fuel pump and adjusted the fuel pressure and the trouble is completely gone. Works very well and full power available all the time. Just to let you guys know if someone has the same problem. First I thought it was glowplug related problem but I tested that extensively with many different plug sets.

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RE: Welcome to Club SAITO ! - 8/26/2011 1:36 PM   
clytle374


 

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Status: offline 		I'm subscribed to this thread, but quit getting emails.

I removed the previous exhaust system, and just used the rcspecialties 90 and the 15 deg manifold. I gained a another 300 rpm and can now lean it out to 9000rpm.

I think the exhaust with a flair and a nut like and OS would work great with my cowl, any of the OS ones fit the 100? I'd still need a pressure tap. Here's a picture of the 90 with the hole drilled. Any ideas on how to test if I'm getting any pressure? I wanted to tap the flat side of the 90, but it was too thin to hold imo.

Thanks
Cory

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RE: Welcome to Club SAITO ! - 8/26/2011 2:01 PM   
w8ye



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Status: offline 		Nothing "OS" will fit anything "Saito 100"


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RE: Welcome to Club SAITO ! - 8/26/2011 3:08 PM   
hsukaria


 

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Status: offline 		I am not sure this is the correct forum to ask this question, but it has to do with my Saito 180 nitro engine.

I acquired it used but have not started it yet. I plan on starting it this weekend (tomorrow). I heard from here that I should add some light oil into the pushrod tubes before starting it. In the past, I used Automatic Transmission Fluid (ATF) to store other engines. Will ATF work ok to pre-lube a Saito before starting from storage? Is there a maximum limit to how much oil there should be in the engine before cranking it with a starter to avoid hydrolock?

Thanks.

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RE: Welcome to Club SAITO ! - 8/26/2011 3:42 PM   
w8ye



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Status: offline 		ATF will be fine

Check the engine for hydro lock by turning it over by hand before applying the starter.

It is going to take a big starter


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RE: Welcome to Club SAITO ! - 8/26/2011 4:26 PM   
blw



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770 frets24
771 Daniel-el
772 boates25

It's good to have these guys around. Anyone else???

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"It doesn''t take but one Auburn man to be a majority" -
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RE: Welcome to Club SAITO ! - 8/26/2011 4:53 PM   
KenD



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Status: offline 		Yesssss me KenD



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RE: Welcome to Club SAITO ! - 8/26/2011 5:05 PM   
hsukaria


 

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quote:

ORIGINAL: w8ye

ATF will be fine

Check the engine for hydro lock by turning it over by hand before applying the starter.

It is going to take a big starter


Yes, I read with dread about the starters some of you guys are using. My standard starter with a big 12V lead acid gel battery turns the 180 over slowly. We'll see.

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RE: Welcome to Club SAITO ! - 8/26/2011 7:25 PM   
clytle374


 

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quote:

ORIGINAL: blw

We have new members:


770 frets24
771 Daniel-el
772 boates25

It's good to have these guys around. Anyone else???


I'd like in, if the dues are not too high

Cory


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RE: Welcome to Club SAITO ! - 8/27/2011 1:26 AM   
Hobbsy



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Status: online 		Jim, I pulled the backplate on my older .80 today and after 22 years it is still shiny and new looking inside. I partly learned to fly with this engine in about 1990. It has rarely turned anything but a Scimitar 13x6 and was run on Fox 15% fuel with 20% castor for its first two seasons./ Since that time it has run on WildCat 10% Premium Extra almost exclusively except for some PM about 4 years ago when I found 6 gallons for 58 bucks. Its whole life has been spent with a Fox Miracle plug in it. The only thing changed has been to the upgraded spraybar and a new cast muffler. Sorry about the lousy picture but it does show the shiny stuff.

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RE: Welcome to Club SAITO ! - 8/27/2011 1:56 AM   
hsukaria


 

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Status: offline 		Hobbsy, I can also see all the Fox stuff in the background also . Are you trying to send subliminal messages through your pictures?

BTW, I started my Saito 180 (my first Saito ever) today for the first time. Bought used. The starter battery was dead, so I used a chicken stick. Flipped the prop backwards after priming for 2 revolutions. Easy start. Awesome throttle response. Ran for a few minutes at mid-throttle and very rich. Then leaned out and got 8500 RPM on a 16x8 prop while still fairly rich. Idle at 2000 RPM.

Fuel I used is Morgan 5% nitro, 15% synth, 5% castor (2-cycle fuel). After using the first gallon with this fuel, I plan on going to 5% nitro and all synth (2-cycle fuel), then after that I will go to 5% nitro with all synth 4-stroke blend.

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RE: Welcome to Club SAITO ! - 8/27/2011 1:58 AM   
N1EDM



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Status: offline 		I've got a Saito 125 that I inadvertantly fiddled with the LSN. The engine hasn't been run yet.

Does anyone have an idea what the initial setting for the LSN should be on the 125?

Thanks,

Bob


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RE: Welcome to Club SAITO ! - 8/27/2011 2:03 AM   
Hobbsy



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Status: online 		Bob, about 1/16th" below the flat surface of the throttle arm will make a good starting point.

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RE: Welcome to Club SAITO ! - 8/27/2011 2:07 AM   
N1EDM



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Status: offline 		Thanks, Hobbsy

Bob


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RE: Welcome to Club SAITO ! - 8/27/2011 5:53 AM   
clytle374


 

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Status: offline 		Took the engine off and was mounting the stack. The small end of the stack measures .315" and the carb is .335". It that enough to matter, or is it normal for the stack to be a bit smaller?

Also there is a gap between the stacks mounting plate and the carb due to the recessed area on the carb face. Should there be an o-ring or gasket there? Not having much luck finding an o-ring that fits.


quote:

ORIGINAL: w8ye

Nothing ''OS'' will fit anything ''Saito 100''


Thanks, I was using the OS pipe as an example of what I'm looking for. BTW the OS F plugs fit great


Thanks
Cory

Funny thing I ran into was when I mounted originally I spaced the carb bolts to clear the firewall by .01". Adding the stack causes them to hit the firewall now. Remember thinking that could never be a problem.

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RE: Welcome to Club SAITO ! - 8/27/2011 11:55 AM   
Paul_BB



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quote:

ORIGINAL: blw

We have new members:


770 frets24
771 Daniel-el
772 boates25

It's good to have these guys around. Anyone else???

I would also like to be a member. I own a .72 and a 1.80 and I love these engines. Thanks.

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RE: Welcome to Club SAITO ! - 8/27/2011 1:00 PM   
Old Fart


 

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Status: offline 		Welcome mate what if anything have you guys got planned for the morning sunday and flying i hope.Sleep in for me and lazy scrambled egg and bacon brekky at the local cafe before bolting the 200r3 to the nearest fencepost at the club and opening the throttle right up.On full throttle this afternoon there is a noticable drop in rpm with the throttle wide open so guess this is the time to start leaning it off.

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