X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=G+5i7Os5 c=1 sm=1 tr=0 a=sTfHN4Zh1uffypZ9lQbP9Q==:117 a=jpOVt7BSZ2e4Z31A5e1TngXxSK0=:19 a=x7bEGLp0ZPQA:10 a=DDNF8ybvv5wA:10 a=FmdZ9Uzk2mMA:10 a=eRLigfuSAAAA:8 a=Ia-xEzejAAAA:8 a=pGLkceISAAAA:8 a=x-75qrxFAAAA:8 a=7g1VtSJxAAAA:8 a=FMKYOUqMuj8pi7RCCSAA:9 a=QEXdDO2ut3YA:10 a=4hVreLlt7OsA:10 a=Qa1je4BO31QA:10 a=K_Pv9SaLS-kA:10 a=gvSQh4r-fQ0A:10 a=_H56z0hjN9yn45UYxBcA:9 a=7LThppkH9_M3h7ya:21 a=BfhXYjFvZD4iae-mNffo:22 a=Urk15JJjZg1Xo0ryW_k8:22 a=pSfGKr4syse1NfsQC3dY:22 a=grOzbf7U_OpcSX4AJOnl:22 From: "Le Roux Breytenbach breytenbachleroux@gmail.com" Received: from mail-qk1-f169.google.com ([209.85.222.169] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 12907180 for flyrotary@lancaironline.net; Fri, 30 Aug 2019 05:37:23 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.222.169; envelope-from=breytenbachleroux@gmail.com Received: by mail-qk1-f169.google.com with SMTP id m10so5590510qkk.1 for ; Fri, 30 Aug 2019 02:37:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=poH9f2/koYIWFRbOPP5btmc7/JFRBLv/yRGoVCs1d6Y=; b=sOKpTD8R8LyfTHjVmQ3lmKLPfBJC0SUskf0UKvq2C62XgU1v+1h78dvuBcvkL05C+y DFfTPIMgmvpQhBemscAsDa1zbUgalmKJ+l12xVqfXnw+iFLx+ACYb2xQFMPWSjHc3jVs yjEY2fYRf2MfO9B79cK7+pSIVFxBCbTwsCIPf0DJvSbUVPJGitrKeoTzBhQUjAbL2Khv ttVM3ccvjOg8+MxubpAzpCyjnxf7UvEyV4mPVaHFcmor5RLjzEpHjqiBPqLSlmy5R7vA qvCeS+nFSmkYModI++2qcL/Nue3b+wfDNTRbR56QF/2r4MPya4FoLEF4Z+bvGeuFHDT1 js3A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=poH9f2/koYIWFRbOPP5btmc7/JFRBLv/yRGoVCs1d6Y=; b=FuPgxNRlxD3RUxNfTc1MpZ/GXwXxv8MSpHjXJH56Ye8A314Fujk9Sm9fPhztPZL+SO tBivRY3TuEIIN54FtfZU9Ln/GeRdlTpQTnHEsdEFci5Xnmogxh0VAwjw/Lmab+E4JXno 0fKh6TcyMsEI/mRx8z/r0V2ov71qfwyyC/7XTQW1nR1mb0Xp4grHkjHVWtl7Uv//sKB/ PizIGE1UyhOcnx3puDahiG81dxsu7ooc2Xxzz7Ba/t2yaqhfozKQXdZ9qUX2LD4XT7kf 71Zo0Wf4xM9YS6A4A9t3TW1GolWCw38qHTonqKL+AL3Twqj/6Eu+qfb7Aa9ukO0Xkbxb AXaw== X-Gm-Message-State: APjAAAWJrqfbDDFhgpeksgyhXCQBmU0RDwWpGwKbi29ZRbXRm+GVDPnc fetFQmGF1As5e/A5YbwjiwL9ILoHNcjcdffWmGYNuHvyoZM= X-Google-Smtp-Source: APXvYqwULK4BHugYYd20XuomyZofCAOJkl+dhKFb6v5SFg/3Y1RDPUP4gBzps01d/5y6wROjV6/k4L/BenTsQhabzyI= X-Received: by 2002:a05:620a:7cc:: with SMTP id 12mr14440226qkb.64.1567157827212; Fri, 30 Aug 2019 02:37:07 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Fri, 30 Aug 2019 11:36:54 +0200 Message-ID: Subject: Re: [FlyRotary] Re: Overheated coolant To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="00000000000099170d0591525def" --00000000000099170d0591525def Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Matt: Sorry to hear about the "overheating". I agree with Andrew these housings can take a lot of "abuse" let=E2=80=99s stay positive and thanks f= or the info These apex seals and rebuild kits are very expensive for us here in South Africa. The Rand is now 1 USD : 15.26 ZAR =F0=9F=98=82 but we hold out and building .... On Fri, Aug 30, 2019 at 9:27 AM Andrew Martin andrew@martinag.com.au < flyrotary@lancaironline.net> wrote: > Matt. I did same on first flight. Steam was still venting as I landed & > taxied back to hangar so was worried a little. But teardown showed no > damage, just resulted in replacing soft seals. > Andrew > > > On Fri, 30 Aug. 2019, 2:18 pm Neil Unger 12348ung@gmail.com, < > flyrotary@lancaironline.net> wrote: > >> Mat, >> >> This is annoying and no consolation, but do not read any >> bad news into this until you get it apart. The oil may have compensated >> for the hot water. All the best, Neil. >> On 8/30/2019 2:57 PM, Matt Boiteau mattboiteau@gmail.com wrote: >> >> Well ran into a little bit of a snag on my RX8 engine=E2=80=A6. >> While trying different things to cool down the oil, during high-speed >> taxi tests I managed to blow out the temporary clear level tube on my >> coolant expansion tank, which lead to pressure loss, which caused it to >> overheat. Managed to shut down near the hanger and get a water hose on t= he >> rads, but I feel the engine got baked underneath the fiberglass cowl. >> *Future note, need to come up with some flaps that open after shutdown o= r >> something, to let the heat escape out. Maybe even an electric fan that r= uns >> for 5 minutes after shutdown* >> >> I know I blew some type of coolant gasket, but unsure if the irons are >> warped. Going to take apart next weekend. Just wanted to run by my list = of >> mods, to see if I need to change anything or add/remove. >> >> 25hours, 99% ground testing >> The iron plates were lapped and renitraded >> Rotor housings were new and welded in P-Ports >> RotaryAviation master kit (RA super seals) >> >> >> *Oil *~125psi at full throttle >> 20w50 VR1 high zinc >> RX7 rear pressure regulator >> 2 washers under front pressure regulator >> weber jet kit >> thermal pellet >> >> >> >> *Coolant *1.3bar cap >> ECU says ~27psi at full throttle, not sure I believe that yet. Lots of >> noise at full throttle on my pressure sensors (pic attached) >> 70/30 Zerex G-05 >> >> >> >> I=E2=80=99ll order the Atkins oring kit, supposedly their brown inner wa= ter >> jacket seals can handle a bit higher temps. >> https://www.atkinsrotary.com/store/04-11-Rx8-O-Ring-Kit-ARE317.html >> >> - Matt Boiteau >> >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/Li= st.html >> >> --00000000000099170d0591525def Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Matt: Sorry to hear about the "overheating". I a= gree with Andrew these housings can take a lot of "abuse" let=E2= =80=99s stay positive and thanks for the info
These apex seals and rebu= ild kits are very expensive for us here in South Africa. The Rand is now=C2= =A0
1 USD : 15.26 ZAR=C2=A0 =C2=A0 =C2=A0=F0=9F=98=82=C2=A0but we= hold out and building ....



On Fri, Aug 30, 2019 at= 9:27 AM Andrew Martin andrew@mar= tinag.com.au <flyrota= ry@lancaironline.net> wrote:
Matt. I did same on first flight= . Steam was still venting as I landed & taxied back to hangar so was wo= rried a little. But teardown showed no damage, just resulted in replacing s= oft seals.=C2=A0
Andrew


On Fri, 30 Aug. 2019, 2:18 pm N= eil Unger 12348ung@= gmail.com, <flyrotary@lancaironline.net> wrote:
=20 =20 =20

Mat,

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0 This is annoying and no consolation, but do not read any bad news into this until you get it apart.=C2=A0 The oil may have compensated for the hot water.=C2=A0 All the best,=C2=A0 Neil.

On 8/30/2019 2:57 PM, Matt Boiteau mattboiteau@gmail.com wrote:
=20

Well ran into a little bit of a snag on my RX8 engine=E2=80=A6.
While trying different things to cool down the oil, during high-speed taxi tests I managed to blow out the temporary clear level tube on my coolant expansion tank, which lead to pressure loss, which caused it to overheat. Managed to shut down near the hanger and get a water hose on the rads, but I feel the engine got baked underneath the fiberglass cowl. *Future note, need to come up with some flaps that open after shutdown or something, to let the heat escape out. Maybe even an electric fan that runs for 5 minutes after shutdown*

I know I blew some type of coolant gasket, but unsure if the irons are warped. Going to take apart next weekend. Just wanted to run by my list of mods, to see if I need to change anything or add/remove.

25hours, 99% ground testing
The iron plates were lapped and renitraded
Rotor housings were new and welded in P-Ports
RotaryAviation master kit (RA super seals)

Oil
~125psi at full throttle
20w50 VR1 high zinc
RX7 rear pressure regulator
2 washers under front pressure regulator
weber jet kit
thermal pellet


Coolant
1.3bar cap
ECU says ~27psi at full throttle, not sure I believe that yet. Lots of noise at full throttle on my pressure sensors (pic attached)
70/30 Zerex G-05

=C2=A0

I=E2=80=99ll order the Atkins oring kit, sup= posedly their brown inner water jacket seals can handle a bit higher temps. https://www.atkinsrotary.com/store/04-11= -Rx8-O-Ring-Kit-ARE317.html


- Matt Boiteau

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