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Testor Zero : How to disassemble it
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latole- Gold Member
- Posts : 191
Join date : 2021-03-28
Location : Quebec province
latole- Gold Member
- Posts : 191
Join date : 2021-03-28
Location : Quebec province
Re: Testor Zero : How to disassemble it
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.


Do you really have to disassemble? It looks new.
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.


Do you really have to disassemble? It looks new.
rsv1cox- Top Poster
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latole- Gold Member
- Posts : 191
Join date : 2021-03-28
Location : Quebec province
latole- Gold Member
- Posts : 191
Join date : 2021-03-28
Location : Quebec province
Re: Testor Zero : How to disassemble it
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.
Marleysky- Top Poster
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rsv1cox- Top Poster
Posts : 7947
Join date : 2014-08-18
Location : West Virginia
rsv1cox- Top Poster
Posts : 7947
Join date : 2014-08-18
Location : West Virginia
Re: Testor Zero : How to disassemble it
Thank you all of you, I learn
latole- Gold Member
- Posts : 191
Join date : 2021-03-28
Location : Quebec province
Re: Testor Zero : How to disassemble it
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:

http://sceptreflight.com/Model%20Engine%20Tests/Testors%208000%20%28first%20version%29.html
here's the position lever description:

Marleysky- Top Poster
Posts : 3488
Join date : 2014-09-28
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Re: Testor Zero : How to disassemble it
I discover that I can pull the lever.
And I can remove it too
Easy to push on.
And I can remove it too
Easy to push on.
latole- Gold Member
- Posts : 191
Join date : 2021-03-28
Location : Quebec province
latole- Gold Member
- Posts : 191
Join date : 2021-03-28
Location : Quebec province
Re: Testor Zero : How to disassemble it
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.
Ken Cook- Top Poster
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Re: Testor Zero : How to disassemble it
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
latole- Gold Member
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Location : Quebec province
Re: Testor Zero : How to disassemble it
POS=power operating supply
crankbndr- Diamond Member
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Location : Homestead FL
Re: Testor Zero : How to disassemble it
latole wrote:Thank you, you help me. So the name of this "valve" is POS needle valve. Can you explain what mean POS , I'm french speakingKen 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.
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)


GallopingGhostler- Top Poster
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Re: Testor Zero : How to disassemble it
GallopingGhostler wrote:latole wrote:Thank you, you help me. So the name of this "valve" is POS needle valve. Can you explain what mean POS , I'm french speakingKen 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.
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)![]()
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

latole- Gold Member
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Re: Testor Zero : How to disassemble it
crankbndr wrote:POS=power operating supply
Really ? Or you are kidding ?
latole- Gold Member
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crankbndr- Diamond Member
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latole- Gold Member
- Posts : 191
Join date : 2021-03-28
Location : Quebec province
Re: Testor Zero : How to disassemble it
This is where using French comes in handy!latole wrote:Wow this forum has automatic censorship! I wrote the full word and it censored it![]()

GallopingGhostler- Top Poster
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Re: Testor Zero : How to disassemble it
GallopingGhostler wrote:This is where using French comes in handy!latole wrote:Wow this forum has automatic censorship! I wrote the full word and it censored it![]()
![]()
Merde alors !
latole- Gold Member
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Join date : 2021-03-28
Location : Quebec province

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