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Testor Zero : How to disassemble it Empty Testor Zero : How to disassemble it

Post  latole Thu Apr 28, 2022 6:33 am

Hello,
I am looking for a way to disassemble my newly acquired Zero Testor to clean it
Only one screw under the wing.
However, it seems that I have to remove the motor cover (black) because part of the wing is held under this cover.
It won't come off and I don't want to break anything.

Any ideas?

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Post  latole Thu Apr 28, 2022 8:26 am

What is this white lever for ?

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Post  rsv1cox Thu Apr 28, 2022 8:56 am

I have disassembled many of Testor's Fly-em series but never the zero. Its just a matter of manipulation of the pieces, but your on the right track lifting the belly pan out from under the cowl.

My Zero is new never ran so I did not take it apart. But it's different from yours's as it does not have that lever.

Testor Zero : How to disassemble it P1013049
Testor Zero : How to disassemble it P1013050

Do you really have to disassemble? It looks new.
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Post  latole Thu Apr 28, 2022 9:04 am

With photo it look better.
I like to clean oil and gas in engine compartment and everywhere.

Since my post, I clean it from outside a I screw the wing.
I could leave it like that.

The only question il about the lever.
If I disassemble it I must see what is for.

Look like new now !

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Post  latole Thu Apr 28, 2022 9:07 am

I don't have this "knob" (?) on the left side between engine and cockpit.
What is this ?

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Post  Marleysky Thu Apr 28, 2022 9:10 am

latole wrote:What is this white lever for ?

Testor Zero : How to disassemble it Captur61

I am not 100% certain, but it could be the "position lever" for the needle valve setting? Seems like I've read somewhere Testors was trying a cheap alternative to make the engine easier to start with a "slide valve"rather than a screw/thread needle.
I can't find it now, but somewhere back in time I did a "One Screw Wonder" dissassembly of the silver/yellow P-51. Remove just one screw and the wing, landing gear all pulls away from the fuse. there is a round ring of plastic that holds the upper fuse and the engine clam-shelled in between the wing bottom. The black cowl on your zero might be a separate piece that snaps on over the engine. I've never seen one up close.
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Post  rsv1cox Thu Apr 28, 2022 9:10 am

latole wrote:I don't have this "knob" (?) on the left side between engine and cockpit.
What is this ?

Testor Zero : How to disassemble it Captur62



Ok, pretty dumb of me. Those are the needle valve extensions.  You can unscrew it but be careful some are castor locked and may break.

Edit, you beat me to it Rene.
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Post  rsv1cox Thu Apr 28, 2022 9:22 am

"Pipe Bomb" engines used in these.

Testor Zero : How to disassemble it P1013051

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Post  latole Thu Apr 28, 2022 9:38 am

Thank you all of you, I learn
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Post  Marleysky Thu Apr 28, 2022 9:54 am

OK...so here's Peter Chinn's review of the "first" version pf the 8000 Testors 049:

http://sceptreflight.com/Model%20Engine%20Tests/Testors%208000%20%28first%20version%29.html

here's the position lever description:
Testor Zero : How to disassemble it Scree170
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Post  latole Thu Apr 28, 2022 9:58 am

I discover that I can pull the lever.
And I can remove it too
Easy to push on.
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Post  latole Thu Apr 28, 2022 12:12 pm

Full pull and removed

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Post  Ken Cook Thu Apr 28, 2022 12:26 pm

I have two Zero's, both have that POS needle valve. It really is two positions, horrible and worse. Talk about reinventing the wheel. There was nothing incorrect or troublesome with the standard Testors needle. For the life of me, I can't see how if expense was a issue they would use this.
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Post  latole Thu Apr 28, 2022 2:00 pm

Ken Cook wrote:               I have two Zero's, both have that POS needle valve. It really is two positions, horrible and worse. Talk about reinventing the wheel. There was nothing incorrect or troublesome with the standard Testors needle. For the life of me, I can't see how if expense was a issue they would use this.

Thank you, you help me.

So the name of this "valve" is POS needle valve.
Can you explain what mean POS , I'm french speaking
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Post  crankbndr Thu Apr 28, 2022 2:53 pm

POS=power operating supply
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Post  GallopingGhostler Thu Apr 28, 2022 4:32 pm

latole wrote:
Ken Cook wrote:I have two Zero's, both have that POS needle valve. It really is two positions, horrible and worse. Talk about reinventing the wheel. There was nothing incorrect or troublesome with the standard Testors needle. For the life of me, I can't see how if expense was a issue they would use this.
Thank you, you help me. So the name of this "valve" is POS needle valve. Can you explain what mean POS , I'm french speaking

When an American says, "watch my French" usually means use of terms considered vulgar before women and children.
Lorsqu'un Américain dit, "regardez mon français" signifie généralement l'utilisation de termes considérés comme vulgaires devant les femmes et les enfants.

POS = Tas de merde (mauvaise qualité - poor quality) Sh*t Hit The Fan Censored
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Post  latole Fri Apr 29, 2022 3:01 am

GallopingGhostler wrote:
latole wrote:
Ken Cook wrote:I have two Zero's, both have that POS needle valve. It really is two positions, horrible and worse. Talk about reinventing the wheel. There was nothing incorrect or troublesome with the standard Testors needle. For the life of me, I can't see how if expense was a issue they would use this.
Thank you, you help me. So the name of this "valve" is POS needle valve. Can you explain what mean POS , I'm french speaking

When an American says, "watch my French" usually means use of terms considered vulgar before women and children.
Lorsqu'un Américain dit, "regardez mon français" signifie généralement l'utilisation de termes considérés comme vulgaires devant les femmes et les enfants.

POS = Tas de merde (mauvaise qualité - poor quality) Sh*t Hit The Fan Censored

Je comprends très bien maintenant I understand very well now : Piece Of Sxxx

Merci !

_____________

Wow this forum has automatic censorship!
I wrote the full word and it censored it I Love This Forum!
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Post  latole Fri Apr 29, 2022 3:05 am

crankbndr wrote:POS=power operating supply

Really ? Or you are kidding ?
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Post  crankbndr Fri Apr 29, 2022 5:38 am

latole wrote:
crankbndr wrote:POS=power operating supply

Really ? Or you are kidding ?


Yes


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Post  latole Fri Apr 29, 2022 5:47 am

crankbndr wrote:
latole wrote:
crankbndr wrote:POS=power operating supply

Really ? Or you are kidding ?


Yes


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Ah!Ah!Ah!
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Post  GallopingGhostler Fri Apr 29, 2022 7:18 am

latole wrote:Wow this forum has automatic censorship! I wrote the full word and it censored it  I Love This Forum!
This is where using French comes in handy! Laughing
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Post  latole Fri Apr 29, 2022 7:19 am

GallopingGhostler wrote:
latole wrote:Wow this forum has automatic censorship! I wrote the full word and it censored it  I Love This Forum!
This is where using French comes in handy! Laughing

Merde alors !
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