Mailing List flyrotary@lancaironline.net Message #7047
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: idle speeds
Date: Tue, 6 Apr 2004 18:50:47 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
I still have good compression all around, I just need to replace the water o-rings.  I am going to use the TES o-rings.  But even that won’t help if I can’t solve this damn circulation problem.  I am really at whit’s end.  There is no reason I shouldn’t be making coolant go round and round. 
 
 
Hi Dave.  I'm really sorry to hear about the toasted o-ring.  Hopefully, you can get it all back together soon.  
 
As for the coolant problem, the best thing I can suggest is to get another set of eyes to look at this.  As you well know, the cooling system just isn't that complicated, but it's still possible that you're overlooking something.  I couldn't count the number of times I've traveled to a scanner that's been down for days, only to find that the site engineer has repeatedly overlooked something simple.  It's usually something so simple that we mentally take it for granted as being OK.  I think of this as the brain playing a practical joke on us.  Ever look for something you know you had in your hand just a minute ago, search the room over, and find it on the desk right in front of you.  I'm convinced that my brain has a sense of humor all it's own. 
 
I guarantee, we have enough folks on this list to get your coolant problem resolved.  For starters, how about posting a picture of your water pump housing that shows all the modification that was done to it.  I would still suspect that something is wrong with the way it was modified. 
 
Before you take off the pump, can you rig a large pulley on a drill, so you can drive the pump without running the engine?  You should be able to have someone run the pump, while you disconnect hoses at various points in the system to prove that you have flow.   
 
Good luck,
Rusty (Philips cut off my network access in seconds, but will need two weeks to restore it... sigh)   

 

 

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