Pete, You did not mention if you had a Turn & Bank. I am getting you a drawing together for the way to connect the system up. Will finish it tomorrow. One venturi will NOT run both indicators. I will have some things for you to check on the precessing at 85 MPH. Venturis are definitely not qualified for intentional IFR flight.The whole system will be explained. Bob Parker Mena, AR.
----- Original Message ----- From: Pete <mailto:[EMAIL PROTECTED]> Thomson To: 'Coupe general' <mailto:[email protected]> Sent: Tuesday, August 06, 2002 12:50 PM Subject: [COUPERS-FLYIN] Venturi ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- Good morning all, I just completed a total restoration of 3828H and this included a new AH and DG. The venturies I have are about 10 inches long so I used 3/8 ID suction hose to them. There are two venturies, on for the DG and one for the AH. I was told it would be best to use the larger internal diameter hose so I did, I was unable to find new hose with the large ID so I used to old one. The new 3/8 hose I received had a 1/4 inch ID so I did not use it. Below 85 MPH I cannot get the Attitude indicator to behave, is this normal? Have any of you had this problem and changed venturies or put in an electric vaccum pump? I received a letter form the Federalies informing me that in order to be IFR I needed to have an electrical backup pump installed. Any ideas on all of the above would be appreciated I also had a fluctuating oil pressure of around 5 PSI ( 30 to 35 ) two flights ago and found my oil to be at 3 quarts when I landed. It was a 4 hour flight so I used a quart. After putting in the other quart, the problem seems to have gone away and I am at a steady 35 PSI. Have any of you had eratic indications when the oil is down to 3 quarts, I did not last year, but it never got this hot last year ( around 80 ). Do I have to split the case to get to the pressure relief valve? the hose from ( to ) the gauge goes directly into the crankcase right in front of the right magnetoe. I have a C85. Thanks,Pete Pete :-):-):-):-):-) Have a great day!!! ====================== TO UNSUBSCRIBE go to: http://ercoupers.com/lists.htm
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