Welcome to Club SAITO !
08-06-2019, 07:28 AM
Rebuilding an FA45a, worst castor queen I've seen yet. Even worse than than the OS FS48 surpass from the same owner. You know, even though it's gummed to the hilt it shows very little valve trane wear after hundreds of hours of run time. According to the owner he ran the heck out of it every weekend for 5 years before retiring from flying. Something about mean people from our club back in the day; and so I've heard from others. Anyway, the merits of running some castor are evident but so is running too much castor ie if I had tried running the engine before cleaning it up it would have beat the valve trane to pieces. A LOT of carbon build up on the exhaust valve and super sticky tappets would have killed it. A 24 hour soak in LA's Totally Awesome cleaner allowed me to perform disassembly but nothing more. It's going into the warm antifreeze bath as I've done in the past.
For those thinking about firing up an old used engine which was once run on high castor content fuel, don't, unless you feel like buying a new cam and tappets, maybe a new rod too if you don't Thouroughly clean things up first.
I think Gary has is right, up to 3% castor in the fuel is probably a good thing but man, these old timers who ran 20% castor really left a mess for us youngers!
For those thinking about firing up an old used engine which was once run on high castor content fuel, don't, unless you feel like buying a new cam and tappets, maybe a new rod too if you don't Thouroughly clean things up first.
I think Gary has is right, up to 3% castor in the fuel is probably a good thing but man, these old timers who ran 20% castor really left a mess for us youngers!
Last edited by Glowgeek; 08-06-2019 at 07:44 AM.
08-06-2019, 02:14 PM
https://www.topmodel.fr/en/product-d...er-long-fa125a
Interesting name too, Saito Cooling Header. I chose that one especially for Pete.
Interesting name too, Saito Cooling Header. I chose that one especially for Pete.
08-06-2019, 11:35 PM
https://www.topmodel.fr/en/product-d...er-long-fa125a
Interesting name too, Saito Cooling Header. I chose that one especially for Pete.
Interesting name too, Saito Cooling Header. I chose that one especially for Pete.
08-07-2019, 02:57 AM
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COOLING HEADER LONG FA125A
It's just an interesting name for a piece of pipe, and Pete is such a 125 fan.
, and it's just a little levity between Pete and I. If it is tuned some way, that would be even more interesting.
08-07-2019, 04:19 AM
here is a photo of a YS with a cooling header I found on line
Jim
click to enlarge
Attachment 2264950
Jim
click to enlarge
Attachment 2264950
The YS is cool even without the "header" as they seem to call it
08-07-2019, 09:20 AM
OK Dave.
You know I was just looking for useful info like, hey don't buy a cooling header because it breaks too easy or, yeah it works great to exit your exhaust in tight cowl configs. Nevermind. I'm beginning to think I'm wasting my time here. I'm trying to offer useful info to peeps who visit here, to give them a heads up but maybe I'm just a pipe dreamer.
08-07-2019, 09:35 AM
Lonnie,
I have seen those used on YS engines (helicopter?) even considered rolling something similar on my own .
Just haven't had a good application yet. Not certain but it may be a Hatori made header.
I have seen those used on YS engines (helicopter?) even considered rolling something similar on my own .
Just haven't had a good application yet. Not certain but it may be a Hatori made header.
08-07-2019, 11:27 AM
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OK Dave.
You know I was just looking for useful info like, hey don't buy a cooling header because it breaks too easy or, yeah it works great to exit your exhaust in tight cowl configs. Nevermind. I'm beginning to think I'm wasting my time here. I'm trying to offer useful info to peeps who visit here, to give them a heads up but maybe I'm just a pipe dreamer.
You know I was just looking for useful info like, hey don't buy a cooling header because it breaks too easy or, yeah it works great to exit your exhaust in tight cowl configs. Nevermind. I'm beginning to think I'm wasting my time here. I'm trying to offer useful info to peeps who visit here, to give them a heads up but maybe I'm just a pipe dreamer.
It seems like no one has had any actual experience or they would have said so. Just loosen up and have some fun.
Last edited by Hobbsy; 08-07-2019 at 05:35 PM.
08-08-2019, 02:11 AM
OK Dave.
You know I was just looking for useful info like, hey don't buy a cooling header because it breaks too easy or, yeah it works great to exit your exhaust in tight cowl configs. Nevermind. I'm beginning to think I'm wasting my time here. I'm trying to offer useful info to peeps who visit here, to give them a heads up but maybe I'm just a pipe dreamer.
You know I was just looking for useful info like, hey don't buy a cooling header because it breaks too easy or, yeah it works great to exit your exhaust in tight cowl configs. Nevermind. I'm beginning to think I'm wasting my time here. I'm trying to offer useful info to peeps who visit here, to give them a heads up but maybe I'm just a pipe dreamer.
Lonnie if you have any complaints ring me on this phone
dave did ask a pose good question, is it tuned? or have any baffles, there's an interest! as for me that's the first time i've seen one.
08-08-2019, 02:55 AM
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The 12 mm ones are in stock both short and long.
Last edited by Hobbsy; 08-08-2019 at 02:56 AM. Reason: Add content
08-08-2019, 07:13 AM
Looks like those would work well for an inverted engine to put it directly behind and under the cowl for a more streamlined look, but thats the only reason I see for one.
08-08-2019, 07:44 AM
Pattern fliers for a time used Hatori headers with tuned four stroke muffled pipes. The pipe offered by Saito looks to be made by Hatori. Saito had tried to compete with YS
08-08-2019, 08:51 AM
I guess for an inverted engine the pipe would work good. However on my .80 I added a 90 degree adapter and the stock pipe worked great. As you can see I have one tube pressurizing the tank and one tube connecting the crankcase nipple to a homemade brass outlet to feed the excess oil into the exhaust stream.
08-08-2019, 10:01 AM
Nice pic.
I do something similar but mine goes co-axially through the muffler. This one is on the old warhorse, crash test vehicle
A Saito .82 with a .62 carb on a well used/abused Toledo Special.
08-08-2019, 11:32 AM
Interesting! I admit I got the idea for mine from an old flyer at the field. I asked him about it and he gave me a quick thumbnail sketch on how he made them. It was so easy to make the first time and I had the materials on hand so it didn't have any added cost. It certainly helps keep things a bit cleaner.
08-08-2019, 08:37 PM
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If this is correct Horizon has the 13 mm, (125) unit in stock; https://www.horizonhobby.com/SAI125A...EaAty_EALw_wcB
Holly Bat Butt Bat Man, 70$ American dollars
Jim
Saito engines are no tomato's
Last edited by the Wasp; 08-08-2019 at 08:40 PM.
08-08-2019, 10:07 PM
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Jesse Open may have one for sale, if not keep your eyes on RCG for one, they show up there a lot, or you can buy this 90 in the link
https://www.rcgroups.com/forums/show...1-Saito-FA-90T
Jim
https://www.rcgroups.com/forums/show...1-Saito-FA-90T
Jim
08-08-2019, 10:57 PM
[QUOTE=the Wasp;12542415]Holly Bat Butt Bat Man, 70$ American dollars
Jim
Saito engines are no tomato's[/QUOTE
Jim over here we say 'holy snappin bat flaps robin' usually when it's raining balsa and plywood.
Bruce i think we win on the grounds of pure simplicity re getting oil into the exhaust stream, and it works!
Jim
Saito engines are no tomato's[/QUOTE
Jim over here we say 'holy snappin bat flaps robin' usually when it's raining balsa and plywood.
Bruce i think we win on the grounds of pure simplicity re getting oil into the exhaust stream, and it works!