X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-m28.mx.aol.com ([64.12.137.9] verified) by logan.com (CommuniGate Pro SMTP 5.2c4) with ESMTP id 2629271 for flyrotary@lancaironline.net; Thu, 03 Jan 2008 10:56:15 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.9; envelope-from=WRJJRS@aol.com Received: from WRJJRS@aol.com by imo-m28.mx.aol.com (mail_out_v38_r9.3.) id q.c54.23a14cfe (37532) for ; Thu, 3 Jan 2008 10:55:07 -0500 (EST) Received: from webmail-de18 (webmail-de18.webmail.aol.com [205.188.104.39]) by cia-mb01.mx.aol.com (v121.4) with ESMTP id MAILCIAMB015-929c477d055a10; Thu, 03 Jan 2008 10:55:06 -0500 References: To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] Renesis CAS gap.... was flooding Date: Thu, 03 Jan 2008 10:55:07 -0500 X-AOL-IP: 65.161.241.3 In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: wrjjrs@aol.com X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8CA1C382581A3EA_EC4_63CE_webmail-de18.sysops.aol.com" X-Mailer: AOL Webmail 33161-STANDARD Received: from 65.161.241.3 by webmail-de18.sysops.aol.com (205.188.104.39) with HTTP (WebMailUI); Thu, 03 Jan 2008 10:55:07 -0500 Message-Id: <8CA1C382581A3EA-EC4-31D4@webmail-de18.sysops.aol.com> X-Spam-Flag: NO ----------MB_8CA1C382581A3EA_EC4_63CE_webmail-de18.sysops.aol.com Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii" Don, I don't want to be redundant, and my inbox kicked a bunch of e-mails down the road during Christmas, (mailbox full), but if you're using a Renesis CAS one of the members found?the bracket?needed to be aluminum. Or any non-ferrous material. Caused a world of trouble for him to find. Sorry I don't remember who it was. I believe his problem was higher RPM but IIRC he had some starting trouble too. You may have already have been told of this trouble but I thought I would mention it again. Bill Jepson -----Original Message----- From: Bobby J. Hughes To: Rotary motors in aircraft Sent: Thu, 3 Jan 2008 6:35 am Subject: [FlyRotary] Renesis CAS gap.... was flooding Don, ? It could be something else, but my plan is to grind the flange down to a gap of .020 and try it.? It will be a bitch to get to.? ? I would not grind anything yet. The stock location is correct as Dennis and Tracy are using it with no modifications. There is a quirk with the EC2 and the Renesis CAS that may require a couple of resistors and a zener diode at higher rpm ranges. But I believe Tracy has an upgrade to correct the issue. It does not?effect the engine at start or below 4500 rpms if I remember correctly. Mark Steitle fabricated a Renesis CAS bracket and adopted it?for his 20B so it is an entirely different animal. The 20b does not have a place to bolt up the CAS like the Renesis. ? One thing you can check is to make sure the CAS has? not collected any metal dust or shavings as that will have an effect on the signal. ? Bobby From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Don Wallker Sent: Sunday, January 13, 2008 9:18 PM To: Rotary motors in aircraft Subject: [FlyRotary] flooding I made it out to the airport today, soldered up the CAS and installed it.? Before I cranked it over, I put it in mode 8 and fired it off.? The usual nice blue sparks.? Then set it to mode 0 and cranked with the plugs out and pumps/inj off.? No spark.? Cranked and looked again.? Every so often there would be a weak spark or 3, but most of the time, nothing.? So little or no spark.? I measured the gap between the CAS and the wheel and I get between .045 and .050? (I don't have the right feeler gauges).? This contrasts with Mark having to move his CAS to .020? to make it work.? The flange that the CAS sets on is part of the cast casing and is machined flat where the CAS is bolted in.? It looks like this sould be the correct setting and would never have concidered this to be the problem (still don't know for sure if it is) if Mark hadn't mentioned it.? Have any of you Renesis people run into this?? Some possibilities are that it needs a smaller gap for the EC-2. or that this being a "grey market" engine, they let the builder figure it out the spacing.? It could be something else, but my plan is to grind the flange down to a gap of .020 and try it.? It will be a bitch to get to.? I can add spacers if I need to move it back out.? Anyone else have any suggestions as what else might be the problem? ?Bill, Tracy and Dennis,?did you have this problem with spacing on the Renesis, or did you just?install the stock CAS and go???I checked the factory Manual on CD and they have no specs on the gap.? BTW no RPM display at these low cranking speeds.? Lynn, I am running a stock 13b autotrans starter.? It cranks well, until the battery runs down.? Yes, I have my 12 lb Catto prop installed.? I put a little oil into the plugs holes before cranking.? Dennis, I'll put that inverted drain valve at the top of the radiator housing this weekend.? I also have 2 air purge lines, one running from the rear top of the engine and the other from the radiator, radiator cap, both going up to the surge tank to purge air?out of?the system.? Bob, I think your harnesses are fine!? Picked up some Marvel?MM oil for squirting into the plug holes.? Bill, I have been cleaning my plugs with carb cleaner, then blowing them dry.? If that doesn't work, I'll use the rice hulls. I will attempt to fire it off once the urathane sets and I get the flange cut down.? Guys, thanks for all the suggestions!? I'll keep you posted. ? Don Walker ________________________________________________________________________ More new features than ever. Check out the new AOL Mail ! - http://webmail.aol.com ----------MB_8CA1C382581A3EA_EC4_63CE_webmail-de18.sysops.aol.com Content-Transfer-Encoding: 7bit Content-Type: text/html; charset="us-ascii"
Don,
I don't want to be redundant, and my inbox kicked a bunch of e-mails down the road during Christmas, (mailbox full), but if you're using a Renesis CAS one of the members found the bracket needed to be aluminum. Or any non-ferrous material. Caused a world of trouble for him to find. Sorry I don't remember who it was. I believe his problem was higher RPM but IIRC he had some starting trouble too. You may have already have been told of this trouble but I thought I would mention it again.
Bill Jepson


-----Original Message-----
From: Bobby J. Hughes <bhughes@qnsi.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Thu, 3 Jan 2008 6:35 am
Subject: [FlyRotary] Renesis CAS gap.... was flooding

Don,
 
It could be something else, but my plan is to grind the flange down to a gap of .020 and try it.  It will be a bitch to get to. 
 
I would not grind anything yet. The stock location is correct as Dennis and Tracy are using it with no modifications. There is a quirk with the EC2 and the Renesis CAS that may require a couple of resistors and a zener diode at higher rpm ranges. But I believe Tracy has an upgrade to correct the issue. It does not effect the engine at start or below 4500 rpms if I remember correctly. Mark Steitle fabricated a Renesis CAS bracket and adopted it for his 20B so it is an entirely different animal. The 20b does not have a place to bolt up the CAS like the Renesis.
 
One thing you can check is to make sure the CAS has  not collected any metal dust or shavings as that will have an effect on the signal.
 
Bobby

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Don Wallker
Sent: Sunday, January 13, 2008 9:18 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] flooding

I made it out to the airport today, soldered up the CAS and installed it.  Before I cranked it over, I put it in mode 8 and fired it off.  The usual nice blue sparks.  Then set it to mode 0 and cranked with the plugs out and pumps/inj off.  No spark.  Cranked and looked again.  Every so often there would be a weak spark or 3, but most of the time, nothing.  So little or no spark.  I measured the gap between the CAS and the wheel and I get between .045 and .050  (I don't have the right feeler gauges).  This contrasts with Mark having to move his CAS to .020  to make it work.  The flange that the CAS sets on is part of the cast casing and is machined flat where the CAS is bolted in.  It looks like this sould be the correct setting and would never have concidered this to be the problem (still don't know for sure if it is) if Mark hadn't mentioned it.  Have any of you Renesis people run into this?  Some possibilities are that it needs a smaller gap for the EC-2. or that this being a "grey market" engine, they let the builder figure it out the spacing.  It could be something else, but my plan is to grind the flange down to a gap of .020 and try it.  It will be a bitch to get to.  I can add spacers if I need to move it back out.  Anyone else have any suggestions as what else might be the problem?  Bill, Tracy and Dennis, did you have this problem with spacing on the Renesis, or did you just install the stock CAS and go?  I checked the factory Manual on CD and they have no specs on the gap.  BTW no RPM display at these low cranking speeds.  Lynn, I am running a stock 13b autotrans starter.  It cranks well, until the battery runs down.  Yes, I have my 12 lb Catto prop installed.  I put a little oil into the plugs holes before cranking. 
Dennis, I'll put that inverted drain valve at the top of the radiator housing this weekend.  I also have 2 air purge lines, one running from the rear top of the engine and the other from the radiator, radiator cap, both going up to the surge tank to purge air out of the system.  Bob, I think your harnesses are fine!  Picked up some Marvel MM oil for squirting into the plug holes.  Bill, I have been cleaning my plugs with carb cleaner, then blowing them dry.  If that doesn't work, I'll use the rice hulls. I will attempt to fire it off once the urathane sets and I get the flange cut down.  Guys, thanks for all the suggestions!  I'll keep you posted.
 
Don Walker
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