Mailing List flyrotary@lancaironline.net Message #49038
From: Scott <squiggles@yahoo.com>
Subject: Leaky Water Pump Bolt
Date: Thu, 12 Nov 2009 06:52:22 -0800 (PST)
To: Flyrotary <flyrotary@lancaironline.net>
I started filling the engine with coolant and as soon as the level reached bolt #3 it started to weep.  Pulling the pump off the housing gave no indication of why the leakage.  Per the haynes manual the bolts were tightened in the specified sequence and to 20 ft lbs.  I did tighten to 25ft lbs, but it still continued to leak.  Any guidance on how much torque the threads on aluminum pump housing can take?

The drip rate is felt considerable as there was no pressure(  http://www.youtube.com/watch?v=2ImqWkP8sDw ) other than 1/4" of standing fluid. 

Any thoughts? 
I am getting a new gasket and will try again of course.


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