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  #11  
Old 07-25-2011, 08:28 AM
fstringham7a fstringham7a is offline
 
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Location: St. George
Posts: 973
Default RE: Not Sure

Don't know the answer to that other than I have heard (old age setting in) and can't remember the guru that said it the overall long life of the engine is enhanced by staying above 60 and below 90 in cruise????? I do know ECi put 60 as a minimum cruise pressure.

Maybe Mahlon or one of the other gurus can give the answer

Frank @ 1L8 ... Flying ...
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  #12  
Old 07-25-2011, 08:31 AM
fstringham7a fstringham7a is offline
 
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Location: St. George
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Default RE: PIX

Quote:
Originally Posted by rocketbob View Post
True, and that makes two poor designs...

On my rocket I have removed the expensive vernatherm and put the oil cooler bypass plunger and spring, and will control the oil temps manually with a ball valve.
Hi Bob

Do you have pictures and diagrams and parts list for this option. And have you flown your rocket ....

Frank @ 1L8 ... RV7A... Flying

Last edited by fstringham7a : 07-25-2011 at 08:54 AM.
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  #13  
Old 07-25-2011, 08:59 AM
yakdriver yakdriver is offline
 
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Location: Twin Falls, ID
Posts: 683
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Frank, What is your oil pressure at idle hot? Do you have the vacuum pump housing on your engine? Don
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  #14  
Old 07-25-2011, 09:32 AM
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rocketbob rocketbob is offline
 
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Quote:
Originally Posted by fstringham7a View Post
Hi Bob

Do you have pictures and diagrams and parts list for this option. And have you flown your rocket ....

Frank @ 1L8 ... RV7A... Flying
No pics of the valve yet since I don't have it hooked up and haven't flown but got the idea from Larry Vetterman. I do have the bypass plunger installed. The ball valve goes on the oil cooler line and is controlled from the cockpit.
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N9187P PA-24-260B Comanche, flying
N678X F1 Rocket, under const.
N244BJ RV-6 "victim of SNF tornado" 1200+ hrs, rebuilding
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N7925P PA-24-250 Comanche, restoring
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  #15  
Old 07-25-2011, 10:17 AM
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lostpilot28 lostpilot28 is offline
 
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Location: Boise, ID
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Quote:
Originally Posted by fstringham7a View Post
Don't know the answer to that other than I have heard (old age setting in) and can't remember the guru that said it the overall long life of the engine is enhanced by staying above 60 and below 90 in cruise????? I do know ECi put 60 as a minimum cruise pressure.

Maybe Mahlon or one of the other gurus can give the answer

Frank @ 1L8 ... Flying ...
Where did you read that? I can't find any operating instruction documents from ECI at all. I was told to use the Lycoming materials since they should be the same.
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  #16  
Old 07-25-2011, 10:43 AM
mahlon_r mahlon_r is offline
 
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Posts: 1,025
Default

25 psi is min idle oil pressure or bottom red line
55-95 is cruise oil pressure or green arch ( used to be 60-90 but Lycoming changed it a few years back)
115 is max cold oil pressure or top red line.
I would be fixing it, if it had less then 60psi for oil pressure, in cruise, if it were mine.
Good Luck,
Mahlon ?The opinions and information provided in this and all of my posts are hopefully helpful to you. Please use the information provided responsibly and at your own risk."
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  #17  
Old 07-25-2011, 12:00 PM
fstringham7a fstringham7a is offline
 
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Location: St. George
Posts: 973
Default RE:Vac Area

Quote:
Originally Posted by yakdriver View Post
Frank, What is your oil pressure at idle hot? Do you have the vacuum pump housing on your engine? Don
Hi Don

If I am reading your question correctly I have the SD-8 aux alternator on the Vac pad....

Oil pressure at start up (old spring) was 81 and would be at or about 75 to 80 at t/o. New Spring it was 89 at start up and can't remember the run up temp or pressure and at t/o hit 108

Frank
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  #18  
Old 07-25-2011, 12:20 PM
fstringham7a fstringham7a is offline
 
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Default RE: Info

Quote:
Originally Posted by lostpilot28 View Post
Where did you read that? I can't find any operating instruction documents from ECI at all. I was told to use the Lycoming materials since they should be the same.
It took me a while but I finally found the info on the ECi web site. On the ECi Home page there is a square info position on the left side that says Titan EXP....... http://www.eci.aero/ ...... which takes you to http://www.eci.aero/exp/index_exp.aspx ...... then on the left is a box EXP KIT Egines and hit either Over view Brochure or Engine Comparison Chart.

http://www.eci.aero/exp/eng_comparisons_chart.pdf
http://www.eci.aero/exp/eng_comparisons_brochure.pdf

As far as operating instructions Robbie Attaway, local RV drivers, and info from VAF is what schooled me!!!!!!!!!! Plus this info from ECi

http://www.eci.aero/pages/tech.aspx#breakin

Sonny, I hope this helps. So now the race is on who will get their plane dialed in first. I personally hope it is you so I can learn from you.


Frank @ 1L8 ...RV7A... Flying kinda!!!!!!!!!!!!!!!!!!!!!!
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  #19  
Old 07-25-2011, 01:02 PM
yakdriver yakdriver is offline
 
Join Date: Aug 2006
Location: Twin Falls, ID
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Quote:
Originally Posted by fstringham7a View Post
Hi Don

If I am reading your question correctly I have the SD-8 aux alternator on the Vac pad....

Oil pressure at start up (old spring) was 81 and would be at or about 75 to 80 at t/o. New Spring it was 89 at start up and can't remember the run up temp or pressure and at t/o hit 108

Frank
Reason I asked is that I had oil pressure problems with my engine. My pressure would start out 95psi at 100 degrees oil temp, 85psi at 180 and would fall to 50psi at 230. Idle pressure was 15psi hot. Caused a spun rod bearing. The vacuum housing was on the case but without a gear in it letting the oil bypass. Now start up and take off 85psi, lowest it gets in cruise is 78psi at 220 temp. Idle 40-50psi. Sounds like you might have a missing oil galley plug. Don
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  #20  
Old 07-25-2011, 09:20 PM
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lostpilot28 lostpilot28 is offline
 
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Location: Boise, ID
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Quote:
Originally Posted by fstringham7a View Post
It took me a while but I finally found the info on the ECi web site. On the ECi Home page there is a square info position on the left side that says Titan EXP....... http://www.eci.aero/ ...... which takes you to http://www.eci.aero/exp/index_exp.aspx ...... then on the left is a box EXP KIT Egines and hit either Over view Brochure or Engine Comparison Chart.
Thanks, Frank. I don't know why ECI doesn't make their own manuals...would make sense, no?

As for a solution, I hope this does make a difference...I'm running out of ideas on what to do next. I really don't want to cut holes for those louvers!
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