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I agree with Finn. while I did not "leave" my engine flooded for a long time, it did flood badly when the old aftermarket EFI system failed and turned all the injectors full on (fortunately while on the ground) . Talk about a flood of gasoline pouring out the tail pipes, Mark!. I made no attempt to run the engine again, and took the intake manifold off and exposed the innards to six weeks of hot humid weather while doing some modifications to the intake and waiting for Tracy to build me an EC2.
I put the time to good use by rewiring my engine for the new EC2. However, when I attempted to start it I found no compression, the engine just whirred over easily. I took off the exhaust manifold and found that there was a light (but enough) layer or rust on the apex seals. After a week of poking up through the exhaust with a brass rod, I managed to break all the apex seals free - except for one of course.
I finally had to take the engine off the aircraft and open it up and even then ended up breaking the one apex seal. There was a light coating of rust - you could just about wipe it off, but it was sufficient to cause the seals to freeze.
Yes, I tried all the remedies for unsticking the seals, but only poking with a brass rod finally broke them free - all but one that is. So from that time on I never go out to the hangar without pulling the prop through a few times and run the engine at least once every two weeks.
As Finn pointed out the flow of gasoline apparently washed all the oil off of the internal surfaces of the engine combustion chamber and my leaving the intake off and the humid weather did the rest. So keep it oiled up is my advice.
Ed
----- Original Message ----- From: "Finn Lassen" <finn.lassen@verizon.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Friday, May 25, 2007 12:18 PM
Subject: [FlyRotary] Re: first start
Hi Bill,
If you will not be running the engine regularly be sure to get some light oil into each chamber so the seals won't rust and stick. Especially if you shut down last time by cutting the ignition and thus left gasoline in the engine. I recall that Ed had a bad experience after leaving the engine flooded for a long time.
Finn
Bill Schertz wrote:
Thanks, bear in mind that I am still a long way from flying. I have to bond the top of my fuselage on and then do the sanding and filling. I wanted to verify that the engine and controller would work before I made them 'harder' to get at.
Bill
----- Original Message -----
*From:* John Downing <mailto:downing.j@sbcglobal.net>
*To:* Rotary motors in aircraft <mailto:flyrotary@lancaironline.net>
*Sent:* Thursday, May 24, 2007 8:38 PM
*Subject:* [FlyRotary] first start
Bill, congratulations on your first start. As I'm getting close
it is great that there are folks having better luck than Buly. JohnD
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