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Cox Engine of The Month
Needle valves?
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Needle valves?
Does anyone know where I might get replacement needles for these backplates?
A needle from a SureStart fits the black one, but doesn't work properly, engine runs rich, and any attempt to lean it out makes it cut. The red backplate has a smaller diameter thread, SureStart needle won't screw in (this engine hasn't been restored yet).
Any help would be much appreciated.
Wilf
A needle from a SureStart fits the black one, but doesn't work properly, engine runs rich, and any attempt to lean it out makes it cut. The red backplate has a smaller diameter thread, SureStart needle won't screw in (this engine hasn't been restored yet).
Any help would be much appreciated.
Wilf
Ivanhoe- Diamond Member
- Posts : 1752
Join date : 2011-09-30
Location : Northern Ireland
Re: Needle valves?
I have one of those.
I is finer thread you may use a killer bee or medallion needle valve.
I is finer thread you may use a killer bee or medallion needle valve.
Re: Needle valves?
You'll need a couple of these - http://coxengines.ca/product.php?productid=412&cat=6&page=1
For the black one - http://coxengines.ca/product.php?productid=410&cat=0&page=1
Maybe the red one too, not sure.
For the black one - http://coxengines.ca/product.php?productid=410&cat=0&page=1
Maybe the red one too, not sure.
Re: Needle valves?
microflitedude wrote:You'll need a couple of these - http://coxengines.ca/product.php?productid=412&cat=6&page=1
For the black one - http://coxengines.ca/product.php?productid=410&cat=0&page=1
Maybe the red one too, not sure.
Where do those seals fit, over the spraybar at the needle end?
Ivanhoe- Diamond Member
- Posts : 1752
Join date : 2011-09-30
Location : Northern Ireland
Re: Needle valves?
Ivanhoe wrote:microflitedude wrote:You'll need a couple of these - http://coxengines.ca/product.php?productid=412&cat=6&page=1
For the black one - http://coxengines.ca/product.php?productid=410&cat=0&page=1
Maybe the red one too, not sure.
Where do those seals fit, over the spraybar at the needle end?
Yes. The tops of the spray bar,needle seat.
Re: Needle valves?
Some needles have a different taper than others, but the same threads. That applies to the black plate. The red "Postage Stamp" product engine plate has a 124 TPI fine thread like the Texas Timers NVs. Neither the stock KB or Medallion is a fine thread.
Click the needle valves button on the left to buy a fine thread one for the red backplate. They are $5 each at http://texastimers.com/
Click the needle valves button on the left to buy a fine thread one for the red backplate. They are $5 each at http://texastimers.com/
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
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...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: Needle valves?
RknRusty wrote:Some needles have a different taper than others, but the same threads. That applies to the black plate. The red "Postage Stamp" product engine plate has a 124 TPI fine thread like the Texas Timers NVs. Neither the stock KB or Medallion is a fine thread.
Click the needle valves button on the left to buy a fine thread one for the red backplate. They are $5 each at http://texastimers.com/
Thanks Rusty, I'll give them a try
Ivanhoe- Diamond Member
- Posts : 1752
Join date : 2011-09-30
Location : Northern Ireland
Mike1484- Gold Member
- Posts : 296
Join date : 2011-10-28
Age : 75
Location : Northern Ohio
Re: Needle valves?
Oops,Yep, so they are. I've made that slip before. Hopefully there's no such thing since I go around saying that. Thanks for the correction.Mike1484 wrote: The needles are 128 threads per inch, not 124.
Mike1484
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
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