X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from willowsprings.uwyo.edu ([129.72.10.31] verified) by logan.com (CommuniGate Pro SMTP 5.4.1) with ESMTPS id 5112894 for flyrotary@lancaironline.net; Sat, 03 Sep 2011 13:38:37 -0400 Received-SPF: none receiver=logan.com; client-ip=129.72.10.31; envelope-from=SBoese@uwyo.edu Received: from ponyexpress-ht5.uwyo.edu (extlb.uwyo.edu [172.26.4.4]) by willowsprings.uwyo.edu (8.14.4/8.14.4) with ESMTP id p83HbxsF016748 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL) for ; Sat, 3 Sep 2011 11:37:59 -0600 (MDT) (envelope-from SBoese@uwyo.edu) Received: from ponyexpress-m10.uwyo.edu ([fe80::60dd:cb9e:6f71:3d48]) by ponyexpress-ht5.uwyo.edu ([fe80::addc:5ab0:b0f8:ab9e%13]) with mapi id 14.01.0289.001; Sat, 3 Sep 2011 11:38:00 -0600 From: "Steven W. Boese" To: Rotary motors in aircraft Subject: RE: [FlyRotary] Tuning 20B Thread-Topic: [FlyRotary] Tuning 20B Thread-Index: AQHMalvOj7GrM/unM0mdf0M1G5lE8JU76phg Date: Sat, 3 Sep 2011 17:37:59 +0000 Message-ID: <3E8191F276108F4481AB0721BBA9269E05BDE3E3@ponyexpress-m10.uwyo.edu> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [75.220.180.253] Content-Type: multipart/alternative; boundary="_000_3E8191F276108F4481AB0721BBA9269E05BDE3E3ponyexpressm10u_" MIME-Version: 1.0 --_000_3E8191F276108F4481AB0721BBA9269E05BDE3E3ponyexpressm10u_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Tim, Below the staging threshold manifold pressure, my EC2's fire both the prima= ry and secondary injectors when the cold switch is turned on. This is why = turning on the cold switch along with disabling either set of injectors act= s as an injector backup function. Steve Boese RV6A, 1986 13B NA, RD1A, EC2 ________________________________ From: Rotary motors in aircraft [flyrotary@lancaironline.net] on behalf of = coastiefamily4 [coastiefamily4@gmail.com] Sent: Saturday, September 03, 2011 11:05 AM To: Rotary motors in aircraft Subject: [FlyRotary] Tuning 20B I have just finished setting MODE 3. I am tuning it at 6700ft here in Colo= rado Springs and I could only get 20.5 MP running at 6000 RPMs. It is runni= ng smooth, but I think it could be smoother. I will finish it with MODE 1.= I had to set the Injector flow rate at 163. Just finished trying to adjusted the idle setting in MODE 2 and I am still = having a difficult time getting the engine to smooth out at idle. While at= 1800 rpms with cold start off, fuel pressure at 38psi I have to really le= an it out to get it to run smoothly, it is at a setting that is too lean a= nd the engine tries to quit. The O2 reading in just one bar on the scale. T= hen when I try to increase the mixture she get really really rough and occa= sionally will backfire. Then when I switch back to MODE 0 and place the cold start switch on she be= gins to purr nicely and she is very smoothly. I am a little stumped, I know when the cold start is turned on it doubles t= he fuel, but at idle with only the primaries firing if the cold start is tu= rned on will it fire both the primary and secondaries or double the flow on= just the primaries and not fire the secondaries? If I new the answer to t= his it would help diagnose the issue. I am also battling oil leaks. I have a few of the oil pan bolts leaking, I= am going to have to pull then out and fill clean the oil out and then plac= e them back in with pro seal. I tried with grey gasket maker, with no joy.= I think i might have also have a leak coming from one of the bolts on the= mounting plate of the RD1C. I am going to have to look into this leak a l= ittle farther. Never ending oil leaks. I can handle to leaks, at least I know where they are. Any suggestions with the idle tuning. I think I might have to purchase the Data Logger from Tracy in order to se= e all the values. Luckily, I already wire for it, I just have to hook it up= . Tim --_000_3E8191F276108F4481AB0721BBA9269E05BDE3E3ponyexpressm10u_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Tim,

 

Below the staging threshold manifold pressure, my EC2's= fire both the primary and secondary injectors when the cold switch is turn= ed on.  This is why turning on the cold switch along with disabli= ng either set of injectors acts as an injector backup function.

 

 

Steve Boese
RV6A, 1986 13B NA, RD1A, EC2

 

From: Rotary motors in aircraft [flyrotary= @lancaironline.net] on behalf of coastiefamily4 [coastiefamily4@gmail.com]<= br> Sent: Saturday, September 03, 2011 11:05 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Tuning 20B

I have just finished setting MODE 3.  I am tuning it at 6700ft he= re in Colorado Springs and I could only get 20.5 MP running at 6000 RPMs. I= t is running smooth, but I think it could be smoother.  I will finish = it with MODE 1.  I had to set the Injector flow rate at 163.

Just finished trying to adjusted the idle setting in MODE 2 and I am still = having a difficult time getting the engine to smooth out at idle.  Whi= le at 1800 rpms with cold start off, fuel pressure at 38psi  I have to= really lean it out to get it to run smoothly, it is at a setting that  is too lean and the engine tries to quit. Th= e O2 reading in just one bar on the scale. Then when I try to increase the = mixture she get really really rough and occasionally will backfire. 

Then when I switch back to MODE 0 and place the cold start switch on she be= gins to purr nicely and she is very smoothly.   

I am a little stumped, I know when the cold start is turned on it doubles t= he fuel, but at idle with only the primaries firing if the cold start is tu= rned on will it fire both the primary and secondaries or double the flow on= just the primaries and not fire the secondaries?  If I new the answer to this it would help diagnose = the issue. 

I am also battling oil leaks.  I have a few of the oil pan bolts leaki= ng, I am going to have to pull then out and fill clean the oil out and then= place them back in with pro seal.  I tried with grey gasket maker, wi= th no joy.  I think i might have also have a leak coming from one of the bolts on the mounting plate of the RD1C.&nbs= p; I am going to have to look into this leak a little farther.  Never = ending oil leaks.

 I can handle to leaks, at least I know where they are.

Any suggestions with the idle tuning.

 I think I might have to purchase the Data Logger from Tracy in order = to see all the values. Luckily, I already wire for it, I just have to hook = it up.


Tim

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