Mailing List flyrotary@lancaironline.net Message #18172
From: Mark R Steitle <mark.steitle@austin.utexas.edu>
Subject: RE: [FlyRotary] Re: Filterr or not to Filter: [FlyRotary] Re: FW: Cooling system update
Date: Tue, 1 Mar 2005 07:46:42 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>

Ed,

The ease of cleaning a screen over backflushing a radiator shouldn’t be overlooked.  If I knew that cleaning or replacing a filter at every oil change would keep my cooling system free of junk, then I would gladly install a filter.  Once the barnacles start to form in the radiator, I think it is time for a new radiator.

 

Do you recall the trouble Perry Mick had with his cooling system?  If I recall, he attributed it to adding stop-leak to his system.  I think it all settled in the radiator tubes.  He replaced the radiator and all was well again.

 

Mark

(word wrap working on my screen) 

 

I am of the opinion that an inline coolant filter is likely to get blocked sooner and more quickly than the radiator (should you have a contamination problem).  The radiator core would likely experience a slower degradation in its cooling capability - as Chuck Dunlap's experience indicated.  Now, whether a clogged filter could withstand the pressure head of coolant moving at 20-30 gpm or whether there would always be some flow - hard to say.

 

By the way, Mark.  On my e mail browser your emails line fail to wrap, they simply extend to the right in one LONG sentence.

 

Ed A

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