David

David's Activity

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   David added a post in a topic Oil Temp    17 Jun 2016

   I thought I was going to have my heating issued resolved after my last ground test, however the flight test was not good.   The temp in the air quickly jumped up to 250 and climbing.  Its as though the air is not leaving the cowling even with it being forced in.  Today I took the cowling off and ran the engine at 3000 RPM to see what it would do and the oil temp stayed at 180 in a 20 minute run.  I did notice that the gear drive seems to generate a lot of heat I don't know if this is normal but I could feel heat distributed to the base of the prop plate and it was quite warm.  My gear drive says ROSS AERO   AZ.U.S.A.  
   

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   David added a post in a topic Oil Temp    1 Jun 2016

   I do have A gear drive that has the oil running from the engine,  and the oil presser does drop in the 25 range and less at idle when hot compared to 75 when cold.  I did put a new oil gauge and prob it and have had the same results of it reading the high temp.  Tonight I was able to cut an hole in the cowling and make shift a tube that allowed the air from the prop to go directly though the cooler.   After on the ground 15 minutes or more taxiing the temp reached 210 and seemed to hang their. is this still to hot? I'm thinking in the air it should do even better? Also is there a good way to check the bearing in the gear box aside from breaking it down?  
   

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   David added a post in a topic Oil Temp    31 May 2016

   This evening I attached  a 5" fan to the oil cooler just to see if the little air produced by the fan would make a difference on the ground when taxiing. The water temp came up to temp quite rapid ( 4 minutes to get to 190F) and the oil temp slowly came up much slower then the other day.   After 15 minutes on the ground the oil temp reach 240.  My thought is if I were to put a hole in the cowling and have direct air flow to the cooler it should work fine.  Any thoughts? 
   

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   David added a topic in Avidfoxflyers General Hangar    30 May 2016

   Oil Temp

   Hello all,
   I'm looking for any advice/operating temperatures for a ea-81 engine with a gear drive signal carburetor. My water temp is consistently running from 190F to 200F but the issue I'm having is the oil temp will reach the 250 mark in a short amount of time so i put a oil cooler on it inside the cowling in front of the engine with a shroud to catch the air coming in allowing it to of though the cooler and I replaced the probe and oil temp gauge. The engine is still reaching the 250 mark and I'm sure it would get hotter if I didn't land and turn it off.  i just got this plane and have no info on what the exceptionable ranges should be and I'm not finding a lot out their.  Any help would be greatly appreciated.    
    
    
   

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