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Engine basics => Engine set up tips => Topic started by: Phil Bare on October 16, 2019, 04:13:36 PM

Title: OK Cub .049
Post by: Phil Bare on October 16, 2019, 04:13:36 PM

This Is probably posted in the wrong place, but here goes anyway.
I am in need of a needle valve for an OK Cub .049.
Any one have one that I can buy let me know.
my email is flbare@skybest.com

Title: Re: OK Cub .049
Post by: Carl Cisneros on October 16, 2019, 10:56:42 PM

here is this on ebay

https://www.ebay.com/itm/Kap-Pak-OK-Cub-039-049-074-099-Flexible-Needle-Valve-Model-Airplane-Engine/153684996580?hash=item23c856f1e4%3Ag%3ArkMAAOSwIM5dpR8Q&LH_BIN=1

Carl

Title: Re: OK Cub .049
Post by: Phil Bare on October 17, 2019, 05:05:34 AM

Quote from: Carl Cisneros on October 16, 2019, 10:56:42 PM

here is this on ebay

https://www.ebay.com/itm/Kap-Pak-OK-Cub-039-049-074-099-Flexible-Needle-Valve-Model-Airplane-Engine/153684996580?hash=item23c856f1e4%3Ag%3ArkMAAOSwIM5dpR8Q&LH_BIN=1

Carl

Thank you, I will look into it. H^^

Title: Re: OK Cub .049
Post by: Robert Whitley on October 17, 2019, 07:29:42 PM

If you contact OK Cub directly they might be able to supply the parts you need.
They have discontinued engine manufacture but still advertise service and some parts availability.
I bought a last edition commemorative engine and some parts a few years ago and the pricing and service was second to none.

Title: Re: OK Cub .049
Post by: Peter in Fairfax, VA on October 20, 2019, 02:50:09 PM

Had no idea the OK business was still going.

Link: http://www.okengines.com/museum.shtml (http://www.okengines.com/museum.shtml)

Title: Re: OK Cub .049
Post by: Phil Bare on October 20, 2019, 03:44:24 PM

Quote from: Peter in Fairfax, VA on October 20, 2019, 02:50:09 PM

Had no idea the OK business was still going.

Link: http://www.okengines.com/museum.shtml (http://www.okengines.com/museum.shtml)

Can not seem to contact them.                             Phil Bare

Title: Re: OK Cub .049
Post by: YakNine on December 28, 2019, 08:07:33 PM

I bought a bunch of parts from Ted last year and sent him 2 crash damaged engines that I held onto for years for sentimental reasons, or maybe because I'm a packrat :) , for $15.00 each he replaced all the broken parts and sent them back running again, I also bought an extra .049A. A great guy to deal with. TJ

Title: Re: OK Cub .049
Post by: Oldenginerod on December 28, 2019, 10:03:57 PM

You might do better with the Kap-Pak type needle as shown in the ebay listing.  I would probably have more taper on it than the original.  Even the latest needle from OK was way too blunt, making them over-sensitive.  Some suggest that you need to file more taper on them, but I've found that it doesn't take too much extra taper to make the thimble bottom-out, not allowing the needle to fully close.

As has been said, I believe you can still get many parts directly out of OK Engines.  The needles they currently (or most recently) sell are different to the original in that they have a spring rather than a split thimble.  Depends if you want it to display as original or you need it to function better.

Rod.