Today's Message Index:
----------------------
 
     1. 12:17 PM - Oil pressure problem (Rob Turk)
     2. 12:29 PM - Re: Oil pressure problem (Gilles Thesee)
 
 
 

Message 1


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Time: 
12:17:45 PM PST US
From: 
"Rob Turk" <matronics@rtist.nl>
Subject: 
Oil pressure problem
      
      
      Folkes,
      
      We keep having worries about our oil pressure, hope you guys have some 
      thoughts to share..
      
      Our Jab3300 engine SN551 has ran 8 hours. I'm using the recommended run-in 
      oil. The engine starts and runs well, regardless if it's hot or cold. When 
      cold, the oil pressure gets to 55-60 psi, no problem, around 30 psi on idle. 
      But as soon as the oil temperature climbs above 75 degrees Celsius, pressure 
      drops rapidly to as low as 5 psi idle, and I need to run 1500 rpm to get 
      above 15psi and during cruise @ 2700 rpm it's also fairly low at 25psi. 
      Especially the really low pressure during taxi after landing worries us.
      
      We did apply the oil pump modification that was recommended to avoid 
      cavitation (modified pump plate purchased from dealer), and we are wondering 
      if there is anything that we could have done wrong in re-assembling the pump 
      that could account for the low pressure. Or anything else that we should 
      look into that might be wrong at all?
      
      Thanks for your help,
      
      Rob
      
      

Message 2


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Time: 
12:29:17 PM PST US
From: 
Gilles Thesee <Gilles.Thesee@ac-grenoble.fr>
Subject: 
Re: Oil pressure problem
      
      
      Rob Turk a crit :
      > anything else that we should look into that might be wrong at all ?
      
      Rob,
      
      Have you hooked up a mechanical gauge to rule out the sender and gauge ?
      That is the first thing I would do.
      
      Best regards,
      -- 
      Gilles Thesee
      http://contrails.free.fr
      
      








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