X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 1 [X] Return-Path: Received: from web81202.mail.mud.yahoo.com ([68.142.199.106] verified) by logan.com (CommuniGate Pro SMTP 5.1.4) with SMTP id 1716540 for flyrotary@lancaironline.net; Tue, 26 Dec 2006 14:22:26 -0500 Received-SPF: none receiver=logan.com; client-ip=68.142.199.106; envelope-from=mike.lafleur@sbcglobal.net Received: (qmail 57058 invoked by uid 60001); 26 Dec 2006 19:21:35 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=sbcglobal.net; h=Message-ID:Received:Date:From:Subject:To:MIME-Version:Content-Type; b=Wuv95uWa5gEf0pBY3HR79yQn8Cd9JL04ZIT713DZMOSVUZDOc1Npj5mB1sML98wEZp8SnDdyh3srQhpc/bVKbPz1exEM3n0z1euSsUR7i7izm0KhES1FkIGiZM2wS9a5SXyCFSrfAJy8VSDKZuHKTIm12eRHZ7YljMmTcQGHrGo= ; Message-ID: <20061226192135.57055.qmail@web81202.mail.mud.yahoo.com> Received: from [69.218.76.192] by web81202.mail.mud.yahoo.com via HTTP; Tue, 26 Dec 2006 11:21:35 PST Date: Tue, 26 Dec 2006 11:21:34 -0800 (PST) From: Michael LaFleur Subject: Re: [FlyRotary] Re: Dead Rotor at 3000ft To: Rotary motors in aircraft MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-1354294081-1167160895=:55692" --0-1354294081-1167160895=:55692 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Let's all speak the same language.=0A=0AReferences to timing should be from= TDC, not from any other indicator or sensor setting.=0A=0AMr. Hanover,=0A= =0AWhich were your references to?=0A=0AMike LaFleur=0A=0A----- Original Mes= sage ----=0AFrom: Joe Hull =0ATo: Rotary motors in ai= rcraft =0ASent: Tuesday, December 26, 2006 2:0= 2:07 PM=0ASubject: [FlyRotary] Re: Dead Rotor at 3000ft=0A=0A=0A=0A=0A =0A = =0A=0A =0A=0A =0A=0A =0A=0A=0A=0A=0A=0A=0A=0A=0A=0ASomeone must love= =0A Tracy very much to give him a Garmin!! =0A =0A=0A =0A =0A=0AI wasn=92= t clear =96 I think my=0Aadvance is 35deg starting from 5-10degATDC =96 so = an absolute advance of=0A25-30deg. BTDC at 7000RPM =96 But again=85that was= a while ago, so I=92ll=0Ahave to re-check my setting. =0A =0A=0A =0A =0A= =0AThe MicroTech has 4 areas for setting and=0Acustomizing ignition timing.= =0A =0A=0A=0A The=0A standard RPM based advance-retard starting from AT= DC =0A 16 adjustments=0A up or down to the RPM timing map based on Mani= fold pressure =0A 16 adjustments=0A up or down to the RPM timing map b= ase on Air temperature =0A Then=0A some number of adjustments to differ= ential spark timing between leading=0A and trailing plug at different R= PM. You can modify the trailing plug to=0A fire 0-15degs after the lead= ing plug. =0A=0A=0A =0A =0A=0AThe only one I ever played with was #1 (RPM= =0Aone) =96 and that was 9 months ago when I did my initial tuning/timing. = I=92ve=0Aleft the factory setup in place for the others (it was setup for a= 13B NA Rotary=0Afrom the factory).=0A =0A=0A =0A =0A=0AThanx,=0A =0A=0AJo= e=0A =0A=0A =0A =0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0AFrom:=0A Rotary mot= ors in aircraft =0A[mailto:flyrotary@lancaironline.net] On=0ABehalf Of Trac= y Crook=0A=0ASent: Tuesday, December 26, 2006=0A10:40 AM=0A=0ATo: Rotary=0A= motors in aircraft=0A=0ASubject: [FlyRotary] Re: Dead=0ARotor at 3000ft=0A= =0A=0A=0A=0A=0A =0A =0A=0A=0A=0A=0A=0AJoe, is the advance in=0Athe Micro = Tech based only on rpm? If so, 35 deg at 5000 rpm=0A& WOT at sea level is = on the edge. Is there a way to alter=0Aadvance with manifold pressure?=0A = =0A=0A=0A=0A=0A=0A=0A =0A =0A=0A=0A=0A=0A=0A=0A I was able to=0Aget what I= think was detonation on the Renesis with too much advance at=0AWOT but I d= idn't note exactly what the timing was at the time. I was=0Ain a big hurry= to back it off to avoid damage. The EC2 (Renesis=0Aversion) would give a = max advance of 39 degrees if adjusted to=0Athe advance limit in Mode 8 so i= t was somewhere between 29 and 39=0Adeg. BTDC at the time. The symptom fel= t like a single violent miss=0Athat happened occasionally when at full thro= ttle. It is=0Apossible that the miss was caused by something else but it d= id=0Ago away when I backed off the advance.=0A =0A=0A=0A=0A=0A=0A=0A =0A = =0A=0A=0A=0A=0A=0A=0ATracy (gotta Garmin for Christmas : ) =0A =0A=0A=0A=0A= =0A=0A=0A=0A=0A----- Original Message ----- =0A =0A=0A=0A=0A=0A=0A=0AFrom: = Joe Hull =0A =0A=0A=0A=0A=0A=0A=0ATo: Rotary motors in aircraft =0A =0A=0A= =0A=0A=0A=0A=0ASent: Tuesday, December 26, 2006 12:34 PM=0A =0A=0A=0A=0A=0A= =0A=0ASubject: [FlyRotary] Re: Dead Rotor at 3000ft=0A =0A=0A=0A=0A=0A=0A= =0A =0A =0A=0A=0A=0A=0AYep, I=92m running the MicroTech=0A=96 but it sound= s like it works pretty much the same. You set static timing=0Aat 5-10deg AT= DC and then there are 15 settings for the RPM ranges from=0A1000-9000+. I= =92ll have to make a trip up to the airport to double check=0Awhat I have s= et =96 but IIRC it is set to advance 35deg. in the range of=0A1000-7000. Bu= t I can=92t remember for sure =96 I did that part of the=0Atuning last Spri= ng and haven=92t looked at it since. I only play with the=0Amixture setting= now =96 always searching for the extra couple hundred RPM=0Aand keeping EG= T=92s below 1500.=0A =0A=0A =0A =0A=0AI want to go pull the engine from th= e=0Aairplane and tear it down to see what=92s happened =96 but my=0Aworksho= p/garage is totally full of my daughter=92s stuff! She sold her=0Ahouse and= is moving into a new house =96 but the new house doesn=92t=0Aclose until m= id-January L So, I=92m stuck with no where to work for 3 weeks=0AARRRGGGHH= H. I=92ll have to figure something out =96 or I=92ll go=0Astir crazy!!=0A = =0A=0A =0A =0A=0AJoe=0A =0A=0A =0A =0A=0A=0A=0A=0A=0A=0A=0AEd, I forgot t= o=0Amention that I think Joe is running something other than an EC2 so it's= timing=0Aset-up might be completely different. =0A =0A=0A=0A=0A=0A=0A=0A = =0A =0A=0A=0A=0A=0A=0A=0ATracy=0A =0A=0A=0A=0A=0A=0A=0A=0A=0A =0A =0A=0ASo= rry,=0A Tracy , I should have made it clearer=0Athat I was talking about t= he crankangle sensor static timing set not the=0Aactually running ignition = timing. But, I believe that Joe was talking=0Aabout the same thing.=0A =0A= =0A=0A=0A=0A=0A=0A =0A =0A=0A=0A=0A=0A=0A=0AAs I recall your default igniti= on timing=0Afor the EC2 is around 25Deg (assuming the static was set at 35D= EG BTDC). =0AI am running mine around 30Deg for take off power- is that too= much in your=0Aestimation?? If so, what would you recommend.=0A =0A=0A=0A= =0A=0A=0A=0A =0A =0A=0A=0A=0A=0A=0A=0AEd=0A =0A=0A=0A=0A=0A=0A=0A=0A=0A = =0A =0A=0A=0A=0A=0A=0A=0A=0A=0AKeep in mind that Ed=0Awas talking about the= crank sensor reference timing which has nothing to do=0Awith actual igniti= on timing. Either 35 or 45 would would be way too=0Amuch ignition advance= at full power for the 13B.=0A =0A=0A=0A=0A=0A=0A=0A =0A =0A=0A=0A=0A=0A=0A= =0ATracy (having a Merry Christmas) =0A =0A=0A=0A=0A=0A=0A=0A=0A=0A =0A = =0A=0A=0A=0A=0AThanx Ed. I'll double check but pretty=0Asure I'm at 35. =0A= =0A=0A =0A =0A=0AHave a very, very Merry Christmas too!=0A(hoping the spo= use and others gift you with many aviation toys!)=0A =0A=0A =0A =0A=0AJoe= =0A =0A=0A =0A =0A=0A =0A =0A=0A =0A=0A=0A=0A=0A=0AJoe, Sorry to hear ab= out your problem but=0Aglad to hear you brought her back safely. Does cert= ainly appear you have=0Aa bad apex seal. You might want to check your igni= tion timing. I=0Aonce mistakenly (of course - who would to it intentionall= y {:>)) sat my=0Astatic timing to 45 deg rather than 35. I noticed while f= lying that If I=0Aopened up the throttle wide open the note of the exhaust = changed to a staccato=0Apopping. Well did not fortunately lose an apex sea= l but I found the=0Acenter electrode ceramic cone was missing for two of th= e 4 plugs and cracked on=0Athe other two. Just lucky they didn't take out = the apex seal. So you=0Amight check that timing just to be certain.=0A =0A= =0A=0A=0A=0A=0A=0A =0A =0A=0A=0A=0A=0A=0A=0A"Merry Christmas"?=0A =0A=0A=0A= =0A=0A=0A=0A =0A =0A=0A=0A=0A=0A=0A=0AEd=0A =0A=0A=0A=0A=0A=0A=0A=0A=0A =0A= =0A=0A=0A=0A=0AThe weather today in the Seattle area was=0Amarginal for fl= ying - but a nice hole opened around my home airport (KAWO) and=0AI was the= re tinkering with the plane anyway (re-torqueing the prop)- so up I=0Awent.= I did 4 touch and goes just for a wee bit of practice and then departed=0A= the pattern toward a bigger hole that would be legal to climb through VFR. = I=0Aflew about 30 miles northwest of the airport out to the edge of the=0A = Puget Sound and enjoyed just being in the air. Power=0Asetting was about 44= 00RPM and I was loping along at a lazy 135kts. I=0Aturned around and heade= d back for Arlington =0Aand decided to ramp up the power to ramming speed -= errr I mean cruising speed.=0AIn a few minutes I was cruising along at 170= kts at about 5500RPM. Then all of a=0Asudden BAM - the engine stumbled and = RPM's dropped to 2300RPM. I=0Aimmediately throttled back and switched tank= s while turning toward the airport.=0AAltitude was 3200FT (about 3000AGL) a= nd I was maybe 7 miles from the airport.=0AThe engine was running real roug= h and wouldn't give me more than 2300RPM. Even=0Awith that little bit of po= wer I ended up entering the 45 to the pattern at=0Aabout 800 above pattern = altitude. It was pretty slow at the airport so I easily=0Amade a normal lan= ding and was able to taxi back to the hanger under power. =0A =0A=0A =0A = =0A=0AAt the hangar I double checked everything=0AI could from the cockpit = - fuel pressure good at 36PSI, oil pressure good at=0A55PSI at 2300 RPM, Mi= croTech ECM showed "OK" for the size major areas=0Ait monitors. So, I shut = it down and pulled the cowl. I pulled the prop through=0Aa number of times = and it seemed that there was a couple places where I should=0Ahave been hea= ring a "pop" in the exhaust but didn't. I also notice=0Athat there is a nic= e ding in the prop that is about an inch long - that wasn't=0Athere when I = left (remember I'm a pusher).=0A =0A=0A =0A =0A=0AI got the engine compres= sion gage and=0Aproceeded to take the spark plug out of the front rotor - t= op - BR9EQ-14. Hmmm=0A- I don't remember there being a casing around the el= ectrode - and why is that=0Acasing sliding? Apparently the casing around t= he electrode broke=0Asomewhere inside the sparkplug and into two halves lon= g ways down the=0Aelectrode. Each half slides freely up and down the electr= ode and even sticks=0Aout a little from the end.=0A =0A=0A =0A =0A=0AI put= the compression gage on and it=0Alooks like I get 30-30-70 when I turn the= engine over. I tried this several=0Atimes and there is definitely a couple= of places where it only goes to 30. So I=0Adouble check the location of th= at ding in the prop - hmmm it's exactly even=0Awith the bottom of the exhau= st - right about where an apex seal would come out.=0A =0A=0A =0A =0A=0AI = put two new BR9EQ-14's in both rotors=0Aand did a quick run - 2300RPM rough= is the best I could get.=0A =0A=0A =0A =0A=0ASome time this week I'll go = up and yank=0Athe exhaust so I can see the apex seals - my guess is I'm mis= sing at least one.=0ABummer. =0A =0A=0A =0A =0A=0AJoe Hull (getting tired = of little=0Asurprises in the air).=0A =0A=0ARedmond/Seattle WA, Cozy-Mazda = Rotary=0A71hrs=0A =0A=0A =0A =0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A= =0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A=0A --0-1354294081-1167160895=:55692 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable
Let's all speak the same language.

Refere= nces to timing should be from TDC, not from any other indicator or sensor s= etting.

Mr. Hanover,

Which were your references to?

Mi= ke LaFleur

----- Original Message ----
From: Joe H= ull <joeh@PilgrimTech.com>
To: Rotary motors in aircraft <flyro= tary@lancaironline.net>
Sent: Tuesday, December 26, 2006 2:02:07 PMSubject: [FlyRotary] Re: Dead Rotor at 3000ft

=0A=0A=0A =0A =0A=0A= =0A=0A =0A=0A =0A=0A=0A=0A=0A=0A
=0A=0A

Someone must love=0A Tracy very much to give him a Garmin!!  <= /font>

=0A=0A

 

=0A=0A

I wasn=92t clear =96 I think my=0Aadvance is 35deg sta= rting from 5-10degATDC =96 so an absolute advance of=0A25-30deg. BTDC at 70= 00RPM =96 But again=85that was a while ago, so I=92ll=0Ahave to re-check my= setting.

=0A=0A

 

=0A=0A

The MicroTech has 4 areas for settin= g and=0Acustomizing ignition timing.

=0A=0A
    =0A
  1. The=0A standard RPM based ad= vance-retard starting from ATDC
    2. =0A
  2. <= span style=3D"font-size: 10pt; font-family: Arial;">16 adjustments=0A u= p or down to the RPM timing map based on Manifold pressure =0A
  3. 16 adjustments=0A up or down to the RPM timing map base on Air tem= perature
    4. =0A
  4. Then=0A some number of adjustments to diff= erential spark timing between leading=0A and trailing plug at different= RPM. You can modify the trailing plug to=0A fire 0-15degs after the le= ading plug.
    5. =0A
=0A=0A

 

=0A=0A

The only one I ever played= with was #1 (RPM=0Aone) =96 and that was 9 months ago when I did my initia= l tuning/timing. I=92ve=0Aleft the factory setup in place for the others (i= t was setup for a 13B NA Rotary=0Afrom the factory).

=0A= =0A

 

=0A=0A

Thanx,

=0A=0A

Joe

=0A=0A

=  

=0A=0A
=0A=0A
=0A=0A
=0A=0A
=0A=0A=0A=0A

From:=0A Rotary motors in aircraft =0A[mailto:flyrotar= y@lancaironline.net] On=0ABehalf Of <= /span>Tracy Crook
=0ASent: Tuesday, December 26, 2006=0A10:40 AM
=0ATo: Rotary=0A motors in aircraft
=0ASubject: [FlyRotary] Re: Dead=0ARoto= r at 3000ft

=0A=0A
=0A=0A

&nb= sp;

=0A=0A
=0A=0A
=0A=0A

Joe, is the advance in=0Athe Micr= o Tech based only on rpm?  If so, 35 deg at 5000 rpm=0A& WOT = at sea level is on the edge.  Is there a way to alter=0Aadvance with m= anifold pressure?

=0A=0A
=0A=0A
=0A=0A

 

=0A=0A
=0A=0A
=0A=0A

  I was able to=0Aget what I think was d= etonation on the Renesis with too much advance at=0AWOT but I didn't n= ote exactly what the timing was at the time.  I was=0Ain a big hurry t= o back it off to avoid damage.  The EC2 (Renesis=0Aversion) would=  give a max advance of 39 degrees if adjusted to=0Athe advance li= mit in Mode 8 so it was somewhere between 29 and 39=0Adeg. B= TDC at the time.  The symptom felt like a single violent miss=0Athat h= appened occasionally when at full throttle.  It is=0Apo= ssible that the miss was caused by something else but it did= =0Ago away when I backed off the advance.

=0A=0A
=0A= =0A
=0A=0A

 

=0A=0A
=0A=0A
=0A=0A

Tracy (gotta Garmin for Christmas : )&nb= sp;

=0A=0A
=0A=0A
=0A=0A
=0A=0A

----- Original Mess= age -----

=0A=0A
=0A=0A
=0A=0A

From: Joe Hull

=0A=0A
=0A=0A
= =0A=0A

To: Rotary motors in a= ircraft

=0A=0A
=0A=0A
=0A=0A

Sent:= Tuesday, Decembe= r 26, 2006 12:34 PM

=0A=0A
=0A=0A
=0A=0A

[FlyRo= tary] Re: Dead Rotor at 3000ft

=0A=0A
=0A=0A
=0A= =0A

&nbs= p;

=0A=0A
=0A=0A

Yep, I=92m running the MicroTech=0A=96 but it so= unds like it works pretty much the same. You set static timing=0Aat 5-10deg= ATDC and then there are 15 settings for the RPM ranges from=0A1000-9000+. = I=92ll have to make a trip up to the airport to double check=0Awhat I have = set =96 but IIRC it is set to advance 35deg. in the range of=0A1000-7000. B= ut I can=92t remember for sure =96 I did that part of the=0Atuning last Spr= ing and haven=92t looked at it since. I only play with the=0Amixture settin= g now =96 always searching for the extra couple hundred RPM=0Aand keeping E= GT=92s below 1500.

=0A=0A

 

=0A=0A

I want to go pull the engine from the=0Aairpl= ane and tear it down to see what=92s happened =96 but my=0Aworkshop/garage = is totally full of my daughter=92s stuff! She sold her=0Ahouse and is movin= g into a new house =96 but the new house doesn=92t=0Aclose until mid-Januar= y L  So, I=92m stuck with no wher= e to work for 3 weeks=0AARRRGGGHHH. I=92ll have to figure something out =96= or I=92ll go=0Astir crazy!!

=0A=0A

 

=0A=0A

Joe

=0A=0A

 

=0A=0A
=0A=0A
=0A=0A
=0A=0A

Ed, I forgot t= o=0Amention that I think Joe is running something other than an EC2 so it's= timing=0Aset-up might be completely different. 

=0A=0A=
=0A=0A
=0A=0A

 

=0A=0A
=0A=0A
=0A=0A

Tracy

=0A=0A=0A=0A
=0A=0A
=0A=0A

 = <= /span>

=0A=0A

Sorry,=0A Tracy ,  I should have made it clearer=0Athat = I was talking about the crankangle sensor static timing set not the=0Aactua= lly running ignition timing.  But, I believe that Joe was talking=0Aab= out the same thing.

=0A=0A
=0A=0A
=0A=0A

 

=0A=0A=0A=0A
=0A=0A

As I recall your default ignition timing=0Afor the EC2 is around 25= Deg (assuming the static was set at 35DEG BTDC). =0AI am running mine = around 30Deg for take off power- is that too much in your=0Aestimation??&nb= sp; If so, what would you recommend.

=0A=0A
=0A=0A
=0A=0A=

 

=0A=0A
=0A=0A
=0A=0A

Ed

=0A=0A
=0A=0A
=0A=0A<= div>=0A=0A

=

=0A=0A
=0A=0A
=0A=0A
=0A=0A

Keep in mind that Ed=0Aw= as talking about the crank sensor reference timing which has nothing to do= =0Awith actual ignition timing.  Either  35 or 45 would would be = way too=0Amuch ignition advance at full power for the 13B.

= =0A=0A
=0A=0A
=0A=0A

 

=0A=0A
=0A=0A
=0A=0A

Tracy  (having a Merry Chris= tmas) =0A=0A

=0A=0A

 

= =0A=0A
=0A=0A

Thanx Ed. I'll double check but pretty=0Asure I'm at 35.

=0A= =0A

 

=0A=0A

Ha= ve a very, very Merry Christmas too!=0A(hoping the spouse and others gift y= ou with many aviation toys!)

=0A=0A

 

=0A=0A

Joe

=0A=0A

 

=0A=0A

   =0A=0A =0A=0A

=0A=0A=0A=0A

Joe, = Sorry to hear about your problem but=0Aglad to hear you brought her back sa= fely.  Does certainly appear you have=0Aa bad apex seal.  You mig= ht want to check your ignition timing.  I=0Aonce mistakenly (of course= - who would to it intentionally {:>)) sat my=0Astatic timing to 45 deg = rather than 35.  I noticed while flying that If I=0Aopened up the thro= ttle wide open the note of the exhaust changed to a staccato=0Apopping.&nbs= p; Well did not fortunately lose an apex seal but I found the=0Acenter elec= trode ceramic cone was missing for two of the 4 plugs and cracked on=0Athe = other two.  Just lucky they didn't take out the apex seal.  So yo= u=0Amight check that timing just to be certain.

=0A=0A
=0A=0A=
=0A=0A

 

=0A=0A
=0A=0A
=0A=0A

"Merry Christmas"?

=0A=0A
=0A= =0A
=0A=0A

 

=0A=0A
=0A=0A
=0A=0A

Ed

=0A=0A
=0A=0A= =0A=0A
=0A=0A

 = ;

=0A=0A
=0A=0A

The weather today in the Seattle area was=0Amargi= nal for flying - but a nice hole opened around my home airport (KAWO) and= =0AI was there tinkering with the plane anyway (re-torqueing the prop)- so = up I=0Awent. I did 4 touch and goes just for a wee bit of practice and then= departed=0Athe pattern toward a bigger hole that would be legal to climb t= hrough VFR. I=0Aflew about 30 miles northwest of the airport out to the edg= e of the=0A Puget Sound and enjoyed just being in the air. Power=0Asetting = was about 4400RPM and I was loping along at a lazy 135kts.  I=0Aturned= around and headed back for Arlington =0Aand decided to ramp up the power t= o ramming speed - errr I mean cruising speed.=0AIn a few minutes I was crui= sing along at 170kts at about 5500RPM. Then all of a=0Asudden BAM - the eng= ine stumbled and RPM's dropped to 2300RPM.  I=0Aimmediately throttled = back and switched tanks while turning toward the airport.=0AAltitude was 32= 00FT (about 3000AGL) and I was maybe 7 miles from the airport.=0AThe engine= was running real rough and wouldn't give me more than 2300RPM. Even=0Awith= that little bit of power I ended up entering the 45 to the pattern at=0Aab= out 800 above pattern altitude. It was pretty slow at the airport so I easi= ly=0Amade a normal landing and was able to taxi back to the hanger under po= wer.

=0A=0A

 

=0A=0A

At the hangar I double checked everything=0AI could fro= m the cockpit - fuel pressure good at 36PSI, oil pressure good at=0A55PSI a= t 2300 RPM, MicroTech ECM showed "OK" for the size major areas=0Ait monitor= s. So, I shut it down and pulled the cowl. I pulled the prop through=0Aa nu= mber of times and it seemed that there was a couple places where I should= =0Ahave been hearing a "pop" in the exhaust but didn't. I also notice=0Atha= t there is a nice ding in the prop that is about an inch long - that wasn't= =0Athere when I left (remember I'm a pusher).

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I got the engin= e compression gage and=0Aproceeded to take the spark plug out of the front = rotor - top - BR9EQ-14. Hmmm=0A- I don't remember there being a casing arou= nd the electrode - and why is that=0Acasing sliding?  Apparently the c= asing around the electrode broke=0Asomewhere inside the sparkplug and into = two halves long ways down the=0Aelectrode. Each half slides freely up and d= own the electrode and even sticks=0Aout a little from the end.

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I= put two new BR9EQ-14's in both rotors=0Aand did a quick run - 2300RPM roug= h is the best I could get.

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Some time this week I'll go up a= nd yank=0Athe exhaust so I can see the apex seals - my guess is I'm missing= at least one.=0ABummer.

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= Joe Hull (getting tired of little= =0Asurprises in the air).

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Redmond/Seattle WA, Cozy-Mazda Rotary=0A71hrs<= /span>

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