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  #11  
Old 05-18-2019, 07:38 PM
bobmarkert's Avatar
bobmarkert bobmarkert is offline
 
Join Date: Oct 2007
Location: Littleton, CO
Posts: 388
Default Doknow....

I’ll check when I get back in town on Tuesday. That would be a bonehead move it that’s what it turns out to be.... standby
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Bob Markert
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  #12  
Old 05-23-2019, 01:59 PM
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bobmarkert bobmarkert is offline
 
Join Date: Oct 2007
Location: Littleton, CO
Posts: 388
Default Yep, not NPT

As it turns out the threads in the solenoid are straight 1/4? and not NPT. After a trip to two speed shops unsuccessfully trying to find the proper fittings, I re-thought the design. I?ve decided to simplify and go with two manual check valves that have a 1 psi cracking pressure. I?m hoping that using two valves will prevent the smoke dribbling as the lines siphon empty after the system is turned off. I?ll fly it this weekend an let you know. I?m probably just reinventing the wheel here...... sigh



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Bob Markert
Littleton, CO KBJC
Reserve Grand Champion Oshkosh 2016

Renegade Opposing Solo pilot and other Dirty Odd Jobs

http://www.rmrairshows.com/
2019 dues paid
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  #13  
Old 05-23-2019, 02:04 PM
gofly gofly is offline
 
Join Date: Apr 2019
Location: Cave Creek, AZ
Posts: 8
Default

Permatex Aviation Form a Gasket...



https://www.permatex.com/products/ga...ealant-liquid/
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  #14  
Old 05-23-2019, 02:40 PM
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skylor skylor is offline
 
Join Date: Aug 2009
Location: Southern California
Posts: 882
Default Straight Thread Ports

Quote:
Originally Posted by bobmarkert View Post
As it turns out the threads in the solenoid are straight 1/4? and not NPT.

snip...
Often, you can just thread an AN815 union with the appropriately sized o-ring installed on one side into straight-thread ports.

Summit has the proper type of fitting:

https://www.summitracing.com/parts/s...xoCsmUQAvD_BwE

Skylor
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