Welcome to Club SAITO !
07-21-2006, 09:52 PM
#3876
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RE: Welcome to Club SAITO !
well i already did that and im in the process of breaking it in acourding to the manual,but thanks i just couldnt wait. thanks for ur time. u wouldnt have any break intips for me would ya? orjust do what theinstruction say.
thanks for ur time again
scott
thanks for ur time again
scott
07-21-2006, 09:59 PM
#3877
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RE: Welcome to Club SAITO !
Scott:
"Ur" is an old Babylonian city.
Excerpt from Saito Notes:
As stated, this is not "Saito's" way, but it has always worked fine for me.
Bill.
"Ur" is an old Babylonian city.
Excerpt from Saito Notes:
A piston ring is seated in the first few seconds of engine running after its installation. This holds from the smallest to the largest of ringed engines, and is dependent on cylinder pressure to force the ring against the bore. Therefore, the initial running should be done at a high power setting.
My way is to allow the engine a few seconds to come up in temperature, then I immediately peak the mixture at full throttle, then right back to idle. For the first few minutes of running the engine goes to full throttle for about five seconds, then back to a rich idle for twenty. This gives me the high cylinder pressure to seat the ring while at full, and then at idle more oil is spread on the working parts.
After these first few minutes I'll go back to full and get about 800 rpm rich drop, then lean the idle a bit but not all the way, and put the engine in a plane. Over the next hour or two I'll slowly lean the idle, and bring the HS closer to peak. After a couple hours total time the engine is all ready for extended high power, and I've been able to fly the fuel through the engine instead of oiling the grass at my house. Or not oiling the grass as much as many do.
My way is to allow the engine a few seconds to come up in temperature, then I immediately peak the mixture at full throttle, then right back to idle. For the first few minutes of running the engine goes to full throttle for about five seconds, then back to a rich idle for twenty. This gives me the high cylinder pressure to seat the ring while at full, and then at idle more oil is spread on the working parts.
After these first few minutes I'll go back to full and get about 800 rpm rich drop, then lean the idle a bit but not all the way, and put the engine in a plane. Over the next hour or two I'll slowly lean the idle, and bring the HS closer to peak. After a couple hours total time the engine is all ready for extended high power, and I've been able to fly the fuel through the engine instead of oiling the grass at my house. Or not oiling the grass as much as many do.
Bill.
07-21-2006, 10:03 PM
#3878
RE: Welcome to Club SAITO !
Bill, i just checked the case vent for obstructions and there were none, is ventilating well, and it is grease because at first it was yellowish in color and is slowly changing to a castor syn blend
i must have tweeked the seal or it was a little shakey to start with, either way its just a mess and is getting plenty of oil[&:] will fly it like this and will change later, thanks
i must have tweeked the seal or it was a little shakey to start with, either way its just a mess and is getting plenty of oil[&:] will fly it like this and will change later, thanks
07-22-2006, 05:03 AM
#3881
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RE: Welcome to Club SAITO !
ORIGINAL: Kmot
Chris.f Please sell me one of those factory water cooled Saitos!!
Could you please describe how the water cooling jacket is constructed, and how it is assembled/attached to the cylinder?
I never knew these existed. Must be EU spec only. I have tried to make my own water cooled version:
Chris.f Please sell me one of those factory water cooled Saitos!!
Could you please describe how the water cooling jacket is constructed, and how it is assembled/attached to the cylinder?
I never knew these existed. Must be EU spec only. I have tried to make my own water cooled version:
http://cgi.ebay.com/Saito-gas-engine...ayphotohosting
My collection :http://e.a.t.chez-alice.fr/AAmoteursminiatures.html
07-22-2006, 12:52 PM
#3882
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RE: Welcome to Club SAITO !
Bill, what did you say? I'm either too tired or too hot to understand. It was 110 here yesterday and forecasting 108 today? Tom #71
07-22-2006, 02:11 PM
#3884
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RE: Welcome to Club SAITO !
Ed:
You're right. I forgot the "de" in the signature.
ENF
BK 2 SAITO PLS.
de W4HZP
Haw again.
Tom:
It's just shorthand that was commonly used on TTY and Morse code links. Nothing important.
Bill.
You're right. I forgot the "de" in the signature.
ENF
BK 2 SAITO PLS.
de W4HZP
Haw again.
Tom:
It's just shorthand that was commonly used on TTY and Morse code links. Nothing important.
Bill.
07-22-2006, 08:22 PM
#3886
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RE: Welcome to Club SAITO !
I would like to become a member of your club. I own 4 Saitos, a 72, 2-100's and a new 125. It is the 125 I have the issue with. The engine has about 6 tanks of fuel through it, I run a 15X6 and also have tried a 14X8 APC. I use 30% Heli fuel with 24% lubricant. Here is my problem, If I run the engine at about 8600 to about 8800 RPM I have good smoke out of the exhaust but the plane flys like a dog. If I increase the RPM to over 9000 and get good performance I lose the smoke trail and seems to me the engine is running hot. Also at the lower 8600 RPM the high speed needle valve is only about 1 1/2 turns out. Seems not right to me any suggestions?
07-23-2006, 11:34 AM
#3888
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RE: Welcome to Club SAITO !
Hi!! I'm trying a first start on a brand new FA 82 but it seems there's no compression. I turns like it was without the glow plug. I notice that there was some compression when it was in the box , bur suddenly it went out of compression without even starting. I tried pouring some drops of fuel into the cylinder then it had a good compression and almost started, but now even after flooding it there's no compression. Any probable cause?
Thanks.
Thanks.
07-23-2006, 11:59 AM
#3889
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RE: Welcome to Club SAITO !
Jpal:
With the amount of fuel you say I’ll guess the engine has about an hour total time. It could be that you’re expecting too much too soon. On the other hand, if your 9000 rpm is at a setting richened from at least 9300 rpm peaked, then don’t worry too much about the smoke trail.
The engine temperature is of concern. I’m not familiar with your “Swallow” airplane, I’d probably fly it without the engine cowl on it and see if it still seems to run hot. If it’s fine with the cowling off the cooling air outlet is most likely where your problem will be found – it needs to be larger.
reimorei:
You may well have fallen victim to one of the strange characteristics of the Saito four stroke engines. They do not have any compression when the throttle is closed. The throttle seal is usually so good that the cylinder can’t breathe, and without taking any air in after the exhaust stroke they have nothing to compress. Open the throttle and try again.
Further, I’ve never been able to get a Saito to start easily the first time of the day unless I have the throttle at least ¼ open and a really sloppy prime. Later starts on the same day only need high trim on the throttle. Once I run the engine dry at the end of the flying session and douse it with the after run oil it’s ¼ throttle and a sloppy prime again.
New members:
340 JPal101
341 reimorei
Getting crowded here. Shall we form our own political party?
Haw.
Bill.
With the amount of fuel you say I’ll guess the engine has about an hour total time. It could be that you’re expecting too much too soon. On the other hand, if your 9000 rpm is at a setting richened from at least 9300 rpm peaked, then don’t worry too much about the smoke trail.
The engine temperature is of concern. I’m not familiar with your “Swallow” airplane, I’d probably fly it without the engine cowl on it and see if it still seems to run hot. If it’s fine with the cowling off the cooling air outlet is most likely where your problem will be found – it needs to be larger.
reimorei:
You may well have fallen victim to one of the strange characteristics of the Saito four stroke engines. They do not have any compression when the throttle is closed. The throttle seal is usually so good that the cylinder can’t breathe, and without taking any air in after the exhaust stroke they have nothing to compress. Open the throttle and try again.
Further, I’ve never been able to get a Saito to start easily the first time of the day unless I have the throttle at least ¼ open and a really sloppy prime. Later starts on the same day only need high trim on the throttle. Once I run the engine dry at the end of the flying session and douse it with the after run oil it’s ¼ throttle and a sloppy prime again.
New members:
340 JPal101
341 reimorei
Getting crowded here. Shall we form our own political party?
Haw.
Bill.
07-23-2006, 12:52 PM
#3893
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RE: Welcome to Club SAITO !
Thanks William, but when I open tha throttle it gets even worst. I'm going to the field and try an electric starter. I'll let you hnow.
ORIGINAL: William Robison
Jpal:
With the amount of fuel you say I’ll guess the engine has about an hour total time. It could be that you’re expecting too much too soon. On the other hand, if your 9000 rpm is at a setting richened from at least 9300 rpm peaked, then don’t worry too much about the smoke trail.
The engine temperature is of concern. I’m not familiar with your “Swallow” airplane, I’d probably fly it without the engine cowl on it and see if it still seems to run hot. If it’s fine with the cowling off the cooling air outlet is most likely where your problem will be found – it needs to be larger.
reimorei:
You may well have fallen victim to one of the strange characteristics of the Saito four stroke engines. They do not have any compression when the throttle is closed. The throttle seal is usually so good that the cylinder can’t breathe, and without taking any air in after the exhaust stroke they have nothing to compress. Open the throttle and try again.
Further, I’ve never been able to get a Saito to start easily the first time of the day unless I have the throttle at least ¼ open and a really sloppy prime. Later starts on the same day only need high trim on the throttle. Once I run the engine dry at the end of the flying session and douse it with the after run oil it’s ¼ throttle and a sloppy prime again.
New members:
340 JPal101
341 reimorei
Getting crowded here. Shall we form our own political party?
Haw.
Bill.
Jpal:
With the amount of fuel you say I’ll guess the engine has about an hour total time. It could be that you’re expecting too much too soon. On the other hand, if your 9000 rpm is at a setting richened from at least 9300 rpm peaked, then don’t worry too much about the smoke trail.
The engine temperature is of concern. I’m not familiar with your “Swallow” airplane, I’d probably fly it without the engine cowl on it and see if it still seems to run hot. If it’s fine with the cowling off the cooling air outlet is most likely where your problem will be found – it needs to be larger.
reimorei:
You may well have fallen victim to one of the strange characteristics of the Saito four stroke engines. They do not have any compression when the throttle is closed. The throttle seal is usually so good that the cylinder can’t breathe, and without taking any air in after the exhaust stroke they have nothing to compress. Open the throttle and try again.
Further, I’ve never been able to get a Saito to start easily the first time of the day unless I have the throttle at least ¼ open and a really sloppy prime. Later starts on the same day only need high trim on the throttle. Once I run the engine dry at the end of the flying session and douse it with the after run oil it’s ¼ throttle and a sloppy prime again.
New members:
340 JPal101
341 reimorei
Getting crowded here. Shall we form our own political party?
Haw.
Bill.
07-23-2006, 12:53 PM
#3894
07-23-2006, 01:06 PM
#3895
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RE: Welcome to Club SAITO !
reimorei:
New engine? That sounds like you have a stuck inlet valve. It’s been found before on new engines that have spent a lot of time in the box before sale.
Pull both rocker covers, check the valve clearance and if a valve is stuck you’ll see it. Use some raw fuel to free it. Set both valves to 0.0015” clearance, then soak both sides with after run oil before putting the covers back on.
Bill.
… but when I open the throttle it gets even worse.
Pull both rocker covers, check the valve clearance and if a valve is stuck you’ll see it. Use some raw fuel to free it. Set both valves to 0.0015” clearance, then soak both sides with after run oil before putting the covers back on.
Bill.
07-23-2006, 01:38 PM
#3897
RE: Welcome to Club SAITO !
nice pic Dave, we need more pics here showing those saitos at work
here are a couple of mine, first is a 100 and the second is a 180[8D]
here are a couple of mine, first is a 100 and the second is a 180[8D]
07-23-2006, 01:42 PM
#3898
RE: Welcome to Club SAITO !
ORIGINAL: William Robison
Gary:
If we want to keep the gun-grabbers and the eco-freaks out of it maybe the party should be "Saipublicans."
Bill.
Gary:
If we want to keep the gun-grabbers and the eco-freaks out of it maybe the party should be "Saipublicans."
Bill.
07-23-2006, 02:33 PM
#3899
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RE: Welcome to Club SAITO !
Bill, Omega fuel has a statement on the container: Do not use after run oil. Why would they ste it this way instead of just stating that it is not needed????
07-23-2006, 02:38 PM
#3900
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RE: Welcome to Club SAITO !
Bill, omega fuel states on the container: do not use after run oil. Why would they state it this way instead of just saying iy is not needed???????