X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) X-Junk-Score: 0 [] X-KAS-Score: 0 [] From: "Matt Boiteau mattboiteau@gmail.com" Received: from mail-lj1-f172.google.com ([209.85.208.172] verified) by logan.com (CommuniGate Pro SMTP 6.3.5) with ESMTPS id 42065 for flyrotary@lancaironline.net; Mon, 24 May 2021 23:46:14 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.208.172; envelope-from=mattboiteau@gmail.com Received: by mail-lj1-f172.google.com with SMTP id b12so29077530ljp.1 for ; Mon, 24 May 2021 20:46:15 -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=AH58YLgdAjFSwtZci/RZZyByf7MwtsCJAKehg2zNz0Q=; b=NAGaECMMgKGBmZdBR7WNdV3gcG8Pa1WF4P/7VB7bkm/mOXKsa5BhEAzuCCCvoexFEt oWg/dgrAzUd4uZOaSuDeINEqqcJVGFg3IV0cR+7ItVC4p1qirapxFHiKsG5MDpp/RMYV rxQRUwhLoIhUd5mH776hEtXXyl38JlNJ9l5TtltV1eypC4sqr9ULPJE97UjGlmxUyYkg ma+1G5lI4io1t7JvUmSPfHywivMeQPWbuhny08jvzmb6oSiaO0w9xEZDpqHNzH5cUxrO WT0wjNVq4XeWgwKYKOFxJuP7bkgMxZPxbkV5X2t9LBoyE3yT9dyYUv9QP4phjW0pAwEx kH/w== 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=AH58YLgdAjFSwtZci/RZZyByf7MwtsCJAKehg2zNz0Q=; b=WsNWV/v6YgbhmNDR/G+cSo+NTGcIsDR2oOjYQtOpN6unG+E9EzJ3QnmCqFiT4K6Wqi HB7H24A6n0XnDujpsDLy6pnYZnhP0kGE+UM4dMoH8If7qmFOI9qQ8EEwvkjIjCe46MWs 6GPHVum+9l7zC7YwyE6RJioxOn2YbPrKqzba/Mdsxr2HOsChEIjFPCcQNgE1GLeI15fu aVXHPC7PtXHWlRhXr4NGM/jeOYQQHx9VlFM+Rz5rDCG5wThZxem5Jze/Wn4DpezXkC8n cahcog3m3w8Yx1yTyw3X7em90cbibcWVaweK5eLcACYo2p3oFf6wcOthaNND6jdEGZZM cKgQ== X-Gm-Message-State: AOAM530rNmdexi/plfxueJmTh/QbpHje/QHdv1CsYMVkbuaguF+EzCLa Ei4A9bEzT40E6tseJv1oZakAU740Yw9jdMJ+MTdNVV6SWQY8uQ== X-Google-Smtp-Source: ABdhPJxuC0XmomNuVYobW7O6GUXWiE4Lnt4CQgjH6J+rtPRkjv5B3vxDIcMVPFuc7ZHAT+Iq7+vQ7l7TYidnRhxrV2A= X-Received: by 2002:a2e:8710:: with SMTP id m16mr18941056lji.165.1621914355925; Mon, 24 May 2021 20:45:55 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Mon, 24 May 2021 23:45:44 -0400 Message-ID: Subject: Re: [FlyRotary] Re: Best way to get air out of Renesis coolant passages To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="0000000000000a86f705c31f5d73" --0000000000000a86f705c31f5d73 Content-Type: text/plain; charset="UTF-8" I bought this years ago, and surprised how much it gets used and borrowed. https://www.amazon.com/FOUR-UNCLES-Radiator-Pressure-Carrying/dp/B087BZ91K4/ - Matt Boiteau On Mon, May 24, 2021 at 3:04 PM Finn Lassen finn.lassen@verizon.net < flyrotary@lancaironline.net> wrote: > Thank you both. > > I just finished a search on saved messages from this list for "pump". Lots > of hits on water pumps, more than an hour to read through. Was trying to > see if would be worthwhile to use an aftermarket pump to replace the stock > Renesis pump. Nothing definitive (no before/after measurements posted). > > Anyhow, came across Lynn's remark that takes two 20 minute sessions to get > all air out. Also a Mazda procedure of running at 2,000 then 3,000 RPM, but > warning to watch for rising temps. > > In my simple installation the 5/16" outlet on top of the engine goes to my > reservoir. I installed a 1/16" restrictor there to prevent excessive flow > from that engine high pressure point to the reservoir, somewhat bypassing > radiators. Perhaps too much of a restriction making it take too long to get > all air out. Or need to make restriction removable. > > Perhaps I should go fly again with multiple high/low power periods to make > sure all air is out to get proper readings before I switch the hoses back. > > Finn > > On 5/24/2021 12:56 PM, Bobby Hughes BHughes@qnsinc.net wrote: > > I had a high quality Schrader valve with metal cap at the top of the > engine water outlet. This helped bleed the air out during filling and > ground run. I had CHT wires clamped to each outlet and could see when the > air purged from each radiator. > > > > Bobby > > > > *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net > ] > *Sent:* Monday, May 24, 2021 11:49 AM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] Re: Best way to get air out of Renesis coolant > passages > > > > Finn > > I had a RX7 engine with two A/C cores for radiators, but here is what I > found worked > > 1. Fill as best as possible, then use aircompressor to take it to > operating pressure while cold > > 2. Run engine up to operating temperature, using highest revs possible on > ground when warm > > 3. While hot, bleed air pressure from system, when cool, replenish > reservoir > > 4. Repeat at least once, then go fly, and check after flight to replenish. > > > > On Mon, May 24, 2021 at 10:40 AM Finn Lassen finn.lassen@verizon.net < > flyrotary@lancaironline.net> wrote: > > Is there a best way to get air out of Renesis coolant passages? > > Like running engine at a certain RPM? > > Repeated heating/cool-down periods? > > Trying to determine reason for higher coolant temperature drop over > right radiator vs left radiator. > > I tried swapping hoses from engine to rads (one has a 90 degree bend). > But am concerned that there may be air trapped in the system leading to > incorrect comparison readings. > > Finn > > > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > > *Disclaimer* > > The information contained in this communication from the sender is > confidential. It is intended solely for use by the recipient and others > authorized to receive it. If you are not the recipient, you are hereby > notified that any disclosure, copying, distribution or taking action in > relation of the contents of this information is strictly prohibited and may > be unlawful. > > This email has been scanned for viruses and malware, and may have been > automatically archived by *Mimecast Ltd*, an innovator in Software as a > Service (SaaS) for business. Providing a *safer* and *more useful* place > for your human generated data. Specializing in; Security, archiving and > compliance. To find out more Click Here > . > > > > > ------------------------------ > [image: Avast logo] > > This email has been checked for viruses by Avast antivirus software. > www.avast.com > > <#m_-6374405698121496891_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > --0000000000000a86f705c31f5d73 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
I bought this years ago, and surprised how much it gets us= ed and borrowed.

- Matt Boiteau


On Mon, May 24, 2021 at 3:04 PM Finn Lassen= finn.lassen@verizon.net <= ;flyrotary@lancaironline.net= > wrote:
=20 =20 =20
Thank you both.

I just finished a search on saved messages from this list for "pump". Lots of hits on water pumps, more than an hour to r= ead through. Was trying to see if would be worthwhile to use an aftermarket pump to replace the stock Renesis pump. Nothing definitive (no before/after measurements posted).

Anyhow, came across Lynn's remark that takes two 20 minute sessions to get all air out. Also a Mazda procedure of running at 2,000 then 3,000 RPM, but warning to watch for rising temps.

In my simple installation the 5/16" outlet on top of the engine goes to my reservoir. I installed a 1/16" restrictor there to prevent excessive flow from that engine high pressure point to the reservoir, somewhat bypassing radiators. Perhaps too much of a restriction making it take too long to get all air out. Or need to make restriction removable.

Perhaps I should go fly again with multiple high/low power periods to make sure all air is out to get proper readings before I switch the hoses back.

Finn

On 5/24/2021 12:56 PM, Bobby Hughes BHughes@qnsinc.net wrote:
=20 =20 =20 =20

I had a high quality Schrader valve with metal cap at the top of the engine water outlet. This helped bleed the air out during filling and ground run. I had CHT wires clamped to each outlet and could see when the air purged from each radiator.

=C2=A0

Bobby

=C2=A0

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Monday, May 24, 2021 11:49 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Best way to get air out of Renesis coolant passages

=C2=A0

Finn

I had a RX7 engine with two A/C cores for radiators, but here is what I found worked<= /p>

1. Fill as best as possible, then use aircompressor to take it to operating pressure while cold<= /u>

2. Run engine up to operating temperature, using highest revs possible on ground when warm

3. While hot, bleed air pressure from system, when cool, replenish reservoir

4. Repeat at least once, then go fly, and check after flight to replenish.

=C2=A0

On Mon, May 24, 2021 at 10:40 AM Finn Lassen finn.lassen@verizon.net <flyrotary@lancaironline.net> wrote:

Is there a best way to get air out of Renesis coolant passages?

Like running engine at a certain RPM?

Repeated heating/cool-down periods?

Trying to determine reason for higher coolant temperature drop over
right radiator vs left radiator.

I tried swapping hoses from engine to rads (one has a 90 degree bend).
But am concerned that there may be air trapped in the system leading to
incorrect comparison readings.

Finn


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Disclaimer

The information contained in this communication from the sender is confidential. It is intended solely for use by the recipient and others authorized to receive it. If you are not the recipient, you are hereby notified that any disclosure, copying, distribution or taking action in relation of the contents of this information is strictly prohibited and may be unlawful.

This email has been scanned for viruses and malware, and may have been automatically archived by Mimecast Ltd, an innovator in Software as a Service (SaaS) for business. Providing a safer and more useful place for your human generated data. Specializing in; Security, archiving and compliance. To find out more Click Here.




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