RE: ASP/MAGNUM FS400AR Rebuild/Overhaul  
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RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 2/5/2008 8:09:47 AM   
Kmot



Posts: 7453
Joined: 6/11/2003
From: Northridge, CA, USA
Status: offline 		Thanks Jeff!

Okay, I have finished the FS-70 overhaul so I will start back on the radial shortly.

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Ahhh......screw it!

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       Post #: 51

RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 2/5/2008 12:30:46 PM   
Patxipt


 

Posts: 224
Joined: 10/13/2006
From: lx, PORTUGAL
Status: offline 		I've been following this thread from the beggining and you do have a gift for mechanics.
The last job done on the OS FS70 is marvelous, a true joy to the eye. I wish I had some lights on how to paint engines so well (hint ).
Either way, I hope to see you back on the radial and see that baby humming once again. Keep up the excellent work!

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Modelling regards,
Francisco

(in reply to Kmot)
       Post #: 52

RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 2/13/2008 11:31:25 PM   
Kmot



Posts: 7453
Joined: 6/11/2003
From: Northridge, CA, USA
Status: offline 		I removed the cylinders from the crankcase today. I had to cut down an Allen key to fit underneath the cooling fins. There is a clear cellophane gasket under the cylinder. You probably can't see it but the gasket is under the bolts heads on each cylinder.



I had previously numbered each cylinder position on the crankcase in pencil. But I wanted something more permanent since the pencil was getting rubbed off. So I stamped, very lightly, the number position on the crankcase.





To remove the name plate from the nose case I drilled the heads off the rivets and pulled the plate off. Then to remove the remainder of the rivets I used a #56 drill bit to bite into the rivet shank and then pull it out of the case.



Here is the intake manifold with the rubber boots removed.



And the brass sockets for the intake pipes removed from the manifold:





The sockets are o-ringed both inside and outside:



At this point, I knocked my camera off the workbench and broke the lens.

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       Post #: 53

RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 2/16/2008 2:23:39 AM   
Kmot



Posts: 7453
Joined: 6/11/2003
From: Northridge, CA, USA
Status: offline 		I had been thinking about painting this engine. But I decided to polish it instead. It will be going into a sport plane of some sort, so I think being polished will give the plane a nicer touch.

Here are the pieces of the power section, polished up.



Here it is stacked up.





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       Post #: 54

RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 2/16/2008 2:55:25 AM   
Flyboy Dave



Posts: 13286
Joined: 3/20/2002
From: San Bernardino County, CA, USA
Status: offline 		....is this a fun hobby, or what ?

FBD.

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A mechanic says..."Oh yeah, watch this".
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(in reply to Kmot)
       Post #: 55

RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 2/16/2008 6:37:10 AM   
Kmot



Posts: 7453
Joined: 6/11/2003
From: Northridge, CA, USA
Status: offline 		Why, yes. Yes it is!

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       Post #: 56

RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 2/16/2008 6:46:03 AM   
FlyingPilgrim



Posts: 1247
Joined: 9/24/2002
From: Canton, MI, USA
Status: offline 		Kmot, nicely done! That will certainly be a beautiful piece when you are done!

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       Post #: 57

RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 2/16/2008 6:48:40 AM   
Kmot



Posts: 7453
Joined: 6/11/2003
From: Northridge, CA, USA
Status: offline 		Thank you FP! This is just the first part of polishing. Wait till it's shiny!

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       Post #: 58

RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 2/16/2008 9:47:31 AM   
Patxipt


 

Posts: 224
Joined: 10/13/2006
From: lx, PORTUGAL
Status: offline 		I'm speechless

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Modelling regards,
Francisco

(in reply to Kmot)
       Post #: 59

RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 2/16/2008 1:29:51 PM   
SJN



Posts: 4281
Joined: 9/28/2002
From: Copenhagen, DENMARK
Status: offline 		Now thats pretty neat

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Sonnich Johannesen

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       Post #: 60

RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 2/16/2008 1:35:35 PM   
nilsreinert123


 

Posts: 103
Joined: 12/27/2006
From: Tau, NORWAY
Status: offline 		Hi SJN , have you flown your jamara stearman with the asp on yet?

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       Post #: 61

RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 2/16/2008 2:29:02 PM   
SJN



Posts: 4281
Joined: 9/28/2002
From: Copenhagen, DENMARK
Status: offline 		nope...I have been lazy, and not finished the plane yet.

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Sonnich Johannesen

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       Post #: 62

RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 2/27/2008 11:37:07 PM   
FlyingPilgrim



Posts: 1247
Joined: 9/24/2002
From: Canton, MI, USA
Status: offline 		Kmot, now that you're done with the "Green Machine" O.S. engine, lets get back to your radial. More pics, please....
(since I can't afford one, I'll settle for checking out yours. This is the kind of article I'd like to see in the publications!)

Now where's my popcorn?

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       Post #: 63

RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 2/28/2008 1:54:55 AM   
Kmot



Posts: 7453
Joined: 6/11/2003
From: Northridge, CA, USA
Status: offline 		In my best John Wayne voice: "thanks, Pilgrim"

Actually, as is typical, I have been sidetracked and am working on something else. That mad Russian МДС 10cc as well as a model boat. But I will be getting back on it soon. I need to do more polishing so the next pics will be of more polished parts. Nothing too exciting.

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       Post #: 64

RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 3/11/2008 11:39:33 AM   
bignuts181


 

Posts: 58
Joined: 1/7/2008
From: melbournevictora, AUSTRALIA
Status: offline 		great thread guys so is this a lone case or are there more unhappy campers out there that have had this engine fail. I have been making enquiries to buying one and have been told they run much better with the carby from the os Radial. My plan was to put one in a 10kg 100" Corsair, do you feel the motor would have the guts to fly this model? The model flies well on a 62 Zenoah.

(in reply to Kmot)
       Post #: 65

RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 5/7/2008 11:23:12 PM   
Kmot



Posts: 7453
Joined: 6/11/2003
From: Northridge, CA, USA
Status: offline 		I got back to working on this engine again. I spent four hours today and got two parts polished. The engine mount, and one cylinder head. Four more heads to go...

I like the result so far. After the heads are all polished, each one will have to be individually torn down so that the polishing detritus can be cleaned out. As you can see, this is a time consuming process!

The head is attached to a stick, so that it can be polished and not flung away by the buffing wheel. Also helps with the burned fingers!

First one side is buffed. Then the head is removed, turned around, and the other side buffed.





This is "Mr Big Boss Buff" and he's a real bear! Standing at this for 3-4 hours at a time is enough, thank you!



This is the engine mount. I did not attempt to polish the inside. It looks good with just the outside polished.



Cylinder head flipped around and buffed out on the opposite side. It's finished here.









Some side by side pictures of a polished versus non-polished head.











Sitting on the cylinder:





That's all for now!



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Ahhh......screw it!

(in reply to bignuts181)
       Post #: 66

RE: ASP/MAGNUM FS400AR Rebuild/Overhaul - 5/7/2008 11:29:43 PM