X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=RZTu9Glv c=1 sm=1 tr=0 a=X7plGht+QIyZwKrx2JZdMA==:117 a=x7bEGLp0ZPQA:10 a=Fee85h93u3AA:10 a=nTHF0DUjJn0A:10 a=DK2GG6i_IL4A:10 a=Ia-xEzejAAAA:8 a=3oc9M9_CAAAA:8 a=_6GpL_ENAAAA:8 a=7g1VtSJxAAAA:8 a=v_6h86HklAASwv3TV8AA:9 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=8xPuELMIaLgA:10 a=ZSxbGYiot9JyI5rUo9UA:9 a=DvPTLWQXaoL4x64b:21 a=Urk15JJjZg1Xo0ryW_k8:22 a=grOzbf7U_OpcSX4AJOnl:22 a=pHzHmUro8NiASowvMSCR:22 a=nt3jZW36AmriUCFCBwmW:22 From: "lehanover lehanover@aol.com" Received: from sonic315-13.consmr.mail.bf2.yahoo.com ([74.6.134.123] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 428035 for flyrotary@lancaironline.net; Sun, 28 Jun 2020 13:32:55 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.6.134.123; envelope-from=lehanover@aol.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aol.com; s=a2048; t=1593365558; bh=RwqGKuWtbFpMCEK3CrIu2CjYpZF8uYbJcmKHUnDq4Js=; h=Date:From:To:In-Reply-To:References:Subject:From:Subject; b=m575mmRtxLfR53ac5Z0XJYoZhzaMkhjDzycfPxY+S/dqkNbkybVXjOSzhLBvD9IVtWd1zwCJkq9vX8Pn01QqXefFi6UXUQuNZMpso4KvhEdVqneLnLNcoQ6flx+XHy1L0fKWFYFflJNJT2MlwGCgRhLHYJhumacA3sy4tJd/A1mwXZXxjQW9W+JaIgC5o/s0WwMDH5WqQjbkCMSE5Ksm6xz9MLplzBFlPHDrjU7W+VjlIJyD6HbRNmjjK05Rnr9BlLTfSqVGLGzWs2r3g60ePYU9yE+Q7ffzYuqJEMDYZXmd17bQ8IfY8hCHKKsjhSEIaH/7EOH+fAVaHuJrlAoVUA== X-YMail-OSG: 7BBbibMVM1kcbn0QYPAuQtsr7lvE9jc2WD5oVhiR8Bycj5nFMXcXFbloHLSJ91w iE_EBC32bQ2NzRsrrs_KyL0tTraIbjIqi1V_ewKzfhEuuuT4JDyJ0ZFJvdhp7MCkG2ANjgKVyiMp eGTpng9QL50CK6oRvWIwQFkPV4RNIV_I0AkVLQ6MyFRms1lbkKQOa2vRIdapWx_wHMj7M7lsYr6I 4Rq3RdtwAYzrefKOXeO9K.Qxp1Bdyc.dypvWnV5mhBPnLHcXgOfYpb9CNCyK_OxIDB7LJ4h5hCKP RFaXcPKU1DzeUYClVA90S6Hx_YOEUIQMjRHnmj_.kwhZqz_HVHx3kTiT9jpJtL7BNyNnHAFGJZGi ZQu7qCCsD6P6Uds6x0aaJDb_YarX3nEG8BoKg1rp6yod42Q5Dh89ERwTyNDkxz0SIqJ1_5eUJGei 4dnnrrzMLTXGUFoFcJSCN1Ubb9rtrDwrgmp.rm8TNA8hA3A_EEVSsvDHbRN8McWeDvOMH0KePm5_ UILGpaR4oP7n6cpfvGutiy2R4gBkJtFrZYLjQv5q0qDO9uyK340tU21e0fwuh5woh1n4a7z9Yikl 0DXMKyrOlE4C4lsStDzO1DDBKHIU5qdxGju5Zu8swmlWFvLFgu8gCBCHXseoVkt7MBNceMgOJTT0 funEdLoXnr4SR2F9KSkiCzUXuH1_15kX_nMPz0nct70QtaxciaaY0mH7DrVmPi8FKC4rFlSUv_eY zYo7qxF2gevuF045SXEwD51lchtIFiBX5lcFmfL.a2reRNA7pMXK9cFS2l_cAhsQebjAn5tLNPLv vfPdxTCvqcBrQbOUBOwczJR9mWUx2ncsXB0z6JP3ndCdNkNh1c65Rywor8hXVq.ghZR1gSt84NDy kPGeqju5XWiE3qT_D6lVOTUKhbdcutgQmHTWvbPcuYpAjQR1S_cvSoLcivMVhWVpYgLnCq.hv_2v _rXrMoka_r8ecjtkbEFKE9SDayHrqjKSwMQcOyA69wGW2u8MrKDWvAt8FyRP1OzKsFK6BEkYCszd _iCGzDy.NqXCeMgG57PtmJbTUItrli62_nknU9CVyXmcoqvsMm6vBU0oC_jWqEuL_MNiTwRsne08 8jA8rwOVsOVCLAR3WbPp3xF49tGeL5LQYxUP5FBxcF3GtE5ArKHKOsCNjHH8tiyvEV1XY0cRl1bX hrrq2muOjm1m78V94YFZI1NMAILzHzGV2BtI7nz9VZVoL8Xxq7fJj8s08xIWy0.E3H15ft1uMNlX 9reeXI4dBaH.ZNMcALaUIfZbeS0iQlX8MpLqnoAQujFdL_OEWihYgs4NZop1xJ8sjX1wh6NK01r2 meWTW9Svwi7PB5v9LhSJO9L.oW59_ Received: from sonic.gate.mail.ne1.yahoo.com by sonic315.consmr.mail.bf2.yahoo.com with HTTP; Sun, 28 Jun 2020 17:32:38 +0000 Date: Sun, 28 Jun 2020 17:32:36 +0000 (UTC) To: flyrotary@lancaironline.net Message-ID: <36071378.3452638.1593365556926@mail.yahoo.com> In-Reply-To: References: Subject: Re: [FlyRotary] Re: Renesis break-in MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_3452637_1866190755.1593365556924" X-Mailer: WebService/1.1.16138 aolloki Apache-HttpClient/4.5.7 (Java/1.8.0_252) Content-Length: 13935 ------=_Part_3452637_1866190755.1593365556924 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable That would have been a straight 30 weight oil. Any straight weight conventi= onal oil would work=C2=A0 over a synthetic but many conventional oils are r= eally quite good and you end up with a long beak in period. Do a hot leak down=C2=A0 or=C2=A0 a compression check after the first run u= p to 180 degrees. Compare that to the engine after 2 hours.=C2=A0 A tired u= sed engine with new seals will improve more than a new well built engine, b= ut both will improve. My piston engines had zero hot leak down after break in. Rotaries a few per= cent. Rotaries have 8 or 9 end gaps depending on the style of apex seal. So= are a bit poor at low speed sealing. For leak down testing....stand clear of the prop. Set the crank on the TDC = mark on your starter ring gear tooth for TDC. The prop can move very quickl= y if off the mark by a tiny amount.If you are sure you want to do this.....= .............Lynn E. Hanover In a message dated 6/28/2020 12:17:34 PM Eastern Standard Time, flyrotary@l= ancaironline.net writes: thanks again Lynn You mentioned Texaco fleet oil..what weight and specific type of oil, if yo= u remember ie AD straight etc.-- I can't seem to find it on the net. When I break it in, I don't want to screw it up. Rich In a message dated 6/27/2020 9:52:21 PM Central Standard Time, flyrotary@la= ncaironline.net writes: The point of the Texaco oil when I did it was that it had the poorest film = strength and the most compressibility of the available oils. Harris Woods u= sed Texaco oil in a small diameter tube as the spring in the landing gearof= the original woody pusher. So, the breaking is to allow the pieces that ar= e a bit proud of what they should be can get warn down a bit and thus impro= ve compression some.=C2=A0 =C2=A0 =C2=A0However, most synthetics have very = high film strength and near zero compressibility. So, the break in=C2=A0 pe= riod may outlast you. And the engine will finally seal up for the guy that = buys the plane off of your widow. In the short term there will be extra blo= w by and higher crankcase pressure.=C2=A0 It means a bit of oil in the catc= h tank after every flight. There should be little to none in the tank, depe= nding on how clever your breathing system is. So do not use a synthetic lube of any kind in the assembly of a rotary unle= ss you are using the seals over again, then by all means use synthetics eve= rywhere. . New seals means no synthetics until after break in. I have no personal contact with Mobile one, but early in its production the= re were some problems. Now it is good enough for Corvettes. What pour weigh= t to use I do not know. I used 40 and 50 weight Redline because it pours li= ke lighter fluid. Not a single oil related problem. Or, I could be completely wrong..............Lynn E. Hanover=C2=A0 In a message dated 6/27/2020 7:23:57 PM Eastern Standard Time, flyrotary@la= ncaironline.net writes: What is the current feeling on mobile 1 and if positive what weight and sho= uld it be used for break-in? Rich =C2=A0 Sent from my iPhone On Jun 27, 2020, at 12:07 PM, lehanover lehanover@aol.com wrote: I used a Texaco fleet oil for two hours at 2000 RPM. Then dump the oil and = check the filter paper for metal.Then 40 or 50 weight Redline racing oil. N= ever over 180 degrees on the coolant.=C2=A0 Then a lap at part throttle the= n good for 9,600 RPM at full throttle. No oil related failures in 35 years = of racing. You could do 4 hours at 2000 RPM no load or part load on fleet oil. Should = be plenty. Never over 180 degrees.It worked for me...............Lynn E. Ha= nover In a message dated 6/27/2020 10:00:22 AM Eastern Standard Time, flyrotary@l= ancaironline.net writes: So I Googled break-in procedures for the RX8. Less than 4000RPM for the first 600-1000 miles. I don't see that happening. I don't think I can keep the RV-4 level atless = than 4,500 RPM, depending on prop. And I sure want full power at takeoff and climb to pattern altitude. I guess I could run it on the ground for 10 hours at varying RPMs below4000= , but really? What did you do with a new Renesis? Finn ---This email has been checked for viruses by Avast antivirus software.http= s://www.avast.com/antivirus --Homepage:=C2=A0 http://www.flyrotary.com/Archive and UnSub:=C2=A0 http://= mail.lancaironline.net:81/lists/flyrotary/List.html ------=_Part_3452637_1866190755.1593365556924 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit
That would have been a straight 30 weight oil. Any straight weight conventional oil would work  over a synthetic but many conventional oils are really quite good and you end up with a long beak in period.
Do a hot leak down  or  a compression check after the first run up to 180 degrees. Compare that to the engine after 2 hours.  A tired used engine with new seals will improve more than a new well built engine, but both will improve.
My piston engines had zero hot leak down after break in. Rotaries a few percent. Rotaries have 8 or 9 end gaps depending on the style of apex seal. So are a bit poor at low speed sealing.
For leak down testing....stand clear of the prop. Set the crank on the TDC mark on your starter ring gear tooth for TDC. The prop can move very quickly if off the mark by a tiny amount.
If you are sure you want to do this..................Lynn E. Hanover

In a message dated 6/28/2020 12:17:34 PM Eastern Standard Time, flyrotary@lancaironline.net writes:

thanks again Lynn

You mentioned Texaco fleet oil..what weight and specific type of oil, if you remember ie AD straight etc.-- I can't seem to find it on the net.

When I break it in, I don't want to screw it up.

Rich

In a message dated 6/27/2020 9:52:21 PM Central Standard Time, flyrotary@lancaironline.net writes:

The point of the Texaco oil when I did it was that it had the poorest film strength and the most compressibility of the available oils. Harris Woods used Texaco oil in a small diameter tube as the spring in the landing gear
of the original woody pusher. So, the breaking is to allow the pieces that are a bit proud of what they should be can get warn down a bit and thus improve compression some.     However, most synthetics have very high film strength and near zero compressibility. So, the break in  period may outlast you. And the engine will finally seal up for the guy that buys the plane off of your widow. In the short term there will be extra blow by and higher crankcase pressure.  It means a bit of oil in the catch tank after every flight. There should be little to none in the tank, depending on how clever your breathing system is.

So do not use a synthetic lube of any kind in the assembly of a rotary unless you are using the seals over again, then by all means use synthetics everywhere. . New seals means no synthetics until after break in.

I have no personal contact with Mobile one, but early in its production there were some problems. Now it is good enough for Corvettes. What pour weight to use I do not know. I used 40 and 50 weight Redline because it pours like lighter fluid. Not a single oil related problem.

Or, I could be completely wrong..............Lynn E. Hanover
 
In a message dated 6/27/2020 7:23:57 PM Eastern Standard Time, flyrotary@lancaironline.net writes:

What is the current feeling on mobile 1 and if positive what weight and should it be used for break-in?

Rich

 

Sent from my iPhone

On Jun 27, 2020, at 12:07 PM, lehanover lehanover@aol.com <flyrotary@lancaironline.net> wrote:

I used a Texaco fleet oil for two hours at 2000 RPM. Then dump the oil and check the filter paper for metal.
Then 40 or 50 weight Redline racing oil. Never over 180 degrees on the coolant.  Then a lap at part throttle then good for 9,600 RPM at full throttle. No oil related failures in 35 years of racing.

You could do 4 hours at 2000 RPM no load or part load on fleet oil. Should be plenty. Never over 180 degrees.
It worked for me...............Lynn E. Hanover


In a message dated 6/27/2020 10:00:22 AM Eastern Standard Time, flyrotary@lancaironline.net writes:

So I Googled break-in procedures for the RX8.

Less than 4000RPM for the first 600-1000 miles.

I don't see that happening. I don't think I can keep the RV-4 level at
less than 4,500 RPM, depending on prop.

And I sure want full power at takeoff and climb to pattern altitude.

I guess I could run it on the ground for 10 hours at varying RPMs below
4000, but really?

What did you do with a new Renesis?

Finn


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