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Glad to hear, you got it "almost" purring, Bill.
I'm beating an old drum here, but would feel remiss if I didn't beat it one more time. I would not ever use fuses for any installation critical system such as fuel or ignition. Can use them for anything else (and I do use fuses). The reason is exactly what you discovered - a blown fuse - cause by ( at the moment )an unknown - but apparently transitory problem (since it is not continuing to blow). That's the key (transitory) - if a transitory fault happens and the fuse blows on a engine critical system - you are out of luck unless already on the ground while a resetting of a CB may regain function. While its true a CB reset may not save you (if the fault is persistent) - but then again it may.
In my 2000+ hours of flying in military aircraft, I have had CB pop and regained the system by simply resetting the CB. Certainly does not work when a persistent problem exists - but, it can save your bacon if the problem is transitory.
There, my 0.02 and I feel better.{:>)
Ed
----- Original Message ----- From: "Bill Bradburry" <bbradburry@allvantage.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Tuesday, February 13, 2007 8:55 AM
Subject: [FlyRotary] Second engine start
OK, so after having discovered a loose engine to battery ground (which prevented the starter from properly engaging) and an open oil line (which made a mess! that will long live in infamy) our hero continues his engine start saga....
The engine would not seem to fire after these incidents and my friend, Simon Ramirez, said he didn't think the plugs were firing. We put a timing light on the plugs and sure enough, no spark!
We discovered that the 10A fuse on the ignition circuit providing power to the igniters had blown. After replacing the fuse, we were getting flashes on the timing light! I am concerned about why the fuse might have blown, but so far, it is holding up.
Now the engine starts, but only seems to want to run at high revs. It also seems to run better when cold start is on. I have not figured out if this is just because the engine is cold, or if the condition is chronic. The temp outside at the time was in the low 70s.
Bob, hangar next door, told me that on occasion, there was flame coming out of the exhaust! Also people started showing up from all over the airport....That 3" straight out exhaust note is a tad harsh! especially when the engine only wants to run at high revs!
I am ready to entertain suggestions about getting the engine to settle down and do the Hummm and Purrr that I hear so many of you talking about. Right now it is more like ripping down a tin building with 15 chainsaws...{:>)
I am already proud of it!!
Bill B
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