Everything Radial Engines
07-30-2007, 08:05 PM
#801
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RE: Everything Radial Engines
Thanks Sonnich....Very cool. Also very brave to start it inside! Maybe the exhaust ring makes a big difference, but when I ran mine with just the short exhaust stubs there was oil spray going everywhere. I am waiting for a new crank bolt to arrive before I reassemble mine. A note to anyone out there who is looking at stripping their ASP/MAgnum radial.... the crankbolt holding the master rod on is LEFT HAND THREAD! Thus when I tried to undo it, I was actually tightening it and eventually snapped it. Oops. Just Engines in the UK carries spares. I also have new bearings ready to go in.
Also make sure you use LOTS of after run oil as the ferrous metals in these engines are very prone to corrosion.
Also make sure you use LOTS of after run oil as the ferrous metals in these engines are very prone to corrosion.
07-31-2007, 04:38 AM
#803
RE: Everything Radial Engines
hehe, well, with the needle 3 turns out, it did spit alot of fuel out, but the exhaust pointing downwards. helps contain it to my engine run mat 
It did however suck a small plastic bag into the prop as you can see n the video...
Found the plane a few places:
http://www.rueckert-modellbau.de/ind...earman3346.htm
http://www.mbrshop24.de/product_info...oducts_id=2108
http://www.shmodelltechnik.de/start....ite_1960mm.php
It did however suck a small plastic bag into the prop as you can see n the video...
Found the plane a few places:
http://www.rueckert-modellbau.de/ind...earman3346.htm
http://www.mbrshop24.de/product_info...oducts_id=2108
http://www.shmodelltechnik.de/start....ite_1960mm.php
08-01-2007, 03:27 AM
#809
RE: Everything Radial Engines
SNJ, I use a 20/10 on my OS radial and get about 6900 rpm. With the 400
you might get to a 22/10??? DWR.
you might get to a 22/10??? DWR.
Maybe.....lets see how it does.
Here are the manufacturer numbers:
ASP FS400AR
Propeller Rpm
18 x 10 8200-8400
18 x 12 7200-7400
18 x 14 6800-7000
20 x 8 7900-8100
20 x 10 7000-7200
22 x 8 6900-7100
08-02-2007, 12:26 PM
#815
RE: Everything Radial Engines
It is a 1/8 sport scale arf from jamara 60 size ,the flaps are not original ,i made them after i found that i needed them to land it on my short field. It also looks much better with flaps!
As you can see the Corsair has been through the war hehe , i have flown it alot ,and in the start some of the landings was kinda hard .
I have 3 videos on youtube ; http://youtube.com/watch?v=yWFMerG0r70 ,the sound quality is not good ,and does`nt reproduce the sound very good
Now my asp 400 is on the way in mail , 720 euro delivered. Hopefully i dont need to pay tax, lets hope! I am thinking of the RTC Aeromaster for it ,but i will modify it slightly before covering it in black and silver. I would make the stabilizers rounder ,and move the cockpit to the rear ,and make a new cowling ... just thoughts... but i think the aeromaster has potential to look much better with some modifications.
As you can see the Corsair has been through the war
hehe , i have flown it alot ,and in the start some of the landings was kinda hard .I have 3 videos on youtube ; http://youtube.com/watch?v=yWFMerG0r70 ,the sound quality is not good ,and does`nt reproduce the sound very good
Now my asp 400 is on the way in mail , 720 euro delivered. Hopefully i dont need to pay tax, lets hope! I am thinking of the RTC Aeromaster for it ,but i will modify it slightly before covering it in black and silver. I would make the stabilizers rounder ,and move the cockpit to the rear ,and make a new cowling ... just thoughts... but i think the aeromaster has potential to look much better with some modifications.
08-05-2007, 08:25 AM
#818
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RE: Everything Radial Engines
Hi Guys,
It is with some sadness that I report my beloved Saito 170R3 suffered a catastrophic internal failure on Saturday. I managed to dead stick my Stearman down okay but the engine doesn't look good.
It appears that one of the slave con rods may have let go and in turn teh mecvhanical lockup at RPM broke the remaining two rods. Too early to tell but my thoughts are a fracture perhaps from an oil drilling.
[
]
It is with some sadness that I report my beloved Saito 170R3 suffered a catastrophic internal failure on Saturday. I managed to dead stick my Stearman down okay but the engine doesn't look good.
It appears that one of the slave con rods may have let go and in turn teh mecvhanical lockup at RPM broke the remaining two rods. Too early to tell but my thoughts are a fracture perhaps from an oil drilling.
[
]
08-05-2007, 08:42 AM
#819
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RE: Everything Radial Engines
ORIGINAL: Thunderchild
Hi Guys,
It is with some sadness that I report my beloved Saito 170R3 suffered a catastrophic internal failure on Saturday. I managed to dead stick my Stearman down okay but the engine doesn't look good.
It appears that one of the slave con rods may have let go and in turn teh mecvhanical lockup at RPM broke the remaining two rods. Too early to tell but my thoughts are a fracture perhaps from an oil drilling.
[]
Hi Guys,
It is with some sadness that I report my beloved Saito 170R3 suffered a catastrophic internal failure on Saturday. I managed to dead stick my Stearman down okay but the engine doesn't look good.
It appears that one of the slave con rods may have let go and in turn teh mecvhanical lockup at RPM broke the remaining two rods. Too early to tell but my thoughts are a fracture perhaps from an oil drilling.
[
]Did you notice any stange noise or running habits from the 170?
08-05-2007, 08:54 AM
#820
My Feedback: (106)
RE: Everything Radial Engines
OOOOUCH Thunderchild. That sight hurts even my eyes. Sure hope that it didn't hurt the valves and other things in there. I been trying to fig out how to get my 170 back together that I tore down yesterday. Ha. Ha. Let us know what else you find and hope that you come out ok. Meanwhile I'l go back and try to Fig out my timing!!
Roy AKA Hooker53
Roy AKA Hooker53
08-05-2007, 10:29 AM
#822
RE: Everything Radial Engines
Was the engine old and much used ,or did it run too lean or with a fuel with low oil percent? Did `nt thought things like that could happen to quality saito engines....
08-05-2007, 07:42 PM
#823
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RE: Everything Radial Engines
ORIGINAL: chasrb
I am very sorry to hear you lost your engine and too the Stearman. What stearman was it? Aeroworks? Flair?
Did you notice any stange noise or running habits from the 170?
ORIGINAL: Thunderchild
Hi Guys,
It is with some sadness that I report my beloved Saito 170R3 suffered a catastrophic internal failure on Saturday. I managed to dead stick my Stearman down okay but the engine doesn't look good.
It appears that one of the slave con rods may have let go and in turn teh mecvhanical lockup at RPM broke the remaining two rods. Too early to tell but my thoughts are a fracture perhaps from an oil drilling.
[]
Hi Guys,
It is with some sadness that I report my beloved Saito 170R3 suffered a catastrophic internal failure on Saturday. I managed to dead stick my Stearman down okay but the engine doesn't look good.
It appears that one of the slave con rods may have let go and in turn teh mecvhanical lockup at RPM broke the remaining two rods. Too early to tell but my thoughts are a fracture perhaps from an oil drilling.
[
]Did you notice any stange noise or running habits from the 170?
It was running beautifully and had about six hours total flight time on it. I suspect that there may have been a crack emanating from an oil drilling as one of the fragments recovered is half of the big end of one connecting rod. This half has separated through the drilling. Although quite young in air time, the engine sat around for twelve months in its box prior to me getting airborne so I guess warranty is out of the question. I shall be sending my photos to Saito along with a quiet word on what I suspect happened.
Thankfully the Stearman dead sticked down okay. I am now trying to get a parts list together to see if it is worth economical repair. My problem is to find a clear diagram of the engine in exploded view format so I can identify which parts I need. The diagram in my manual is crap.
Anyone out there can assist me I would rally appreciate it.
Safe Flying guys.
08-05-2007, 07:53 PM
#824
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RE: Everything Radial Engines
ORIGINAL: nilsreinert123
Was the engine old and much used ,or did it run too lean or with a fuel with low oil percent? Did `nt thought things like that could happen to quality saito engines....
Was the engine old and much used ,or did it run too lean or with a fuel with low oil percent? Did `nt thought things like that could happen to quality saito engines....
As I was telling Chasman, the engine was quite young and running like a gem. It has never given any trouble. It has always been run from new on 10% Angus nitro, and 15% Coolpower/5% Castor oil in Coogee Methanol. Never had any Chinese nitro (not that I've heard anything bad about this product) near it. It was always run dry after each days flying and then pumped with after run oil as soon as I got it home.
I always run my engines slight rich as I read sometime ago that Saito Radials like it this way. It appeared to be the case as it ran like a sewing machine with just the best exhaust note through my Keleo ring exhaust.
So the short answer is NO, it did not run lean or with too little lubrication. Actually if you look at the other shots I've taken (happy to post if anyone wants a look), apart from the obvious destruction, the engine internals are in beautiful corrosion free condition with no evidence of siezure or other oil deprivation evidence.
As much as I love Saito's and I hate to say it, all I can put it down to is a manufacturing defect and it was only a matter of time before the engine turned into a grenade.
