Today's Message Index:
----------------------
1. 06:51 AM - Re: Capacitors (Roger Lee)
2. 06:52 AM - Re: Capacitors (Roger Lee)
3. 12:31 PM - Re: Rotax Service Class Oct. 6 & 7, 2018 in Tucson, AZ (Roger Lee)
4. 12:46 PM - Re: RotaxEngines-List Digest: 2 Msgs - 09/24/18 (goodings@yorku.ca)
5. 02:20 PM - Capacitors (John Elling)
6. 02:20 PM - Capacitors (John Elling)
7. 02:32 PM - Re: Re: RotaxEngines-List Digest: 2 Msgs - 09/24/18 (Ken Ryan)
8. 03:15 PM - Re: Re: RotaxEngines-List Digest: 2 Msgs - 09/24/18 (Hugh McKay)
Message 1
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Hi Hugh,
I have 22K caps if you need one.
The 22K is just a Rotax minimum. You can use larger. Rotax now uses 2 x 33K caps
in the 912iS engine. The larger caps like 33K, 40K or 50K will work better than
the 22K. The larger the cap capacitance the larger the physical size. The
small cap like the 22K usually needs to have ends soldered on while the bigger
caps have screw on terminals.
--------
Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=483354#483354
Message 2
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Hi Hugh,
I have 22K caps if you need one.
The 22K is just a Rotax minimum. You can use larger. Rotax now uses 2 x 33K caps
in the 912iS engine. The larger caps like 33K, 40K or 50K will work better than
the 22K. The larger the cap capacitance the larger the physical size. The
small cap like the 22K usually needs to have ends soldered on while the bigger
caps have screw on terminals. Get the 105c temp rated ones.
--------
Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=483355#483355
Message 3
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| Subject: | Re: Rotax Service Class Oct. 6 & 7, 2018 in Tucson, |
AZ
Rotax Oct. 6th & 7th Class Directions
Fly into Tucson International Airport (TIA) or fly your own plane into Ryan Airfield.
Classes are Saturday and Sunday. All rental cars are on site at Tucson
International Airport or Enterprise will pick you up if you fly into Ryan Airfield.
Several hotels are just hundreds of yards down the street at TIA. Ryan Airport
(KRYN) is only 10-12 minute drive. The entire experience is convenient
and comfortable.
The class is Oct. 6th & 7th, Saturday & Sunday. The class will start promptly at
0800 each day and plan on staying until 1700 hours. There will be class in the
conference room each day in the morning and work in the hangar each day after
the class presentation. There will be a lunch break each day at approximately
1130 hours.
Please bring a laptop or tablet device in case you need to find Rotax information
or manuals on line. There is Wi-Fi in the classroom.
The class is being held at Ryan Airfield (KRYN) in Tucson, AZ. (9698 W Ajo Hwy).
This is west of Tucson proper and city limits and approximately 12 minute drive
from the Tucson Airport (TIA). If you fly in your own aircraft parking is
right up at the back door of the conference room. Rental cars are available at
Tucson Airport and Enterprise usually will pick you up at Ryan if you need a
car from there.
Directions to Ryan Airfield are as follows and can be reached by either Ajo Hwy
or Valencia Rd. They both run right in front of Ryan Airport. The conference
room is up front at the airport on Ajo Hwy. It is the only building out on Ajo
Hwy and the only parking out on Ajo Hwy.
General Directions:
If you are staying in Tucson central or out by Interstate 10 then take I-10 to
I-19 south. The turn right to go west bound on Ajo Hwy. Follow this road 12 miles
out to Ryan Airfield.
If you are staying in a hotel out by Tucson Airport off Valencia Rd. Just head
west on Valencia until it dead ends right at Ryan Airfield on Ajo Hwy.
There is a restaurant at Ryan field and you can have breakfast there. They open
at 0600. Lunch is either at Ryan or at two other local restaurants.
Prepare to learn and have fun doing it!
For questions call Roger Lee in Tucson, Az at 520-574-1080 Home or 520-349-7056
cell or Bryan Toepfer at California Power Systems 505-550-8121.
--------
Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=483362#483362
Message 4
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| Subject: | Re: RotaxEngines-List Digest: 2 Msgs - 09/24/18 |
For what it's worth, two 10,000 mF (microfarad) capacitors in parallel = 20,000
mF will be almost as good as one 22,000 mF capacitor. One capacitor > 22,000 mF
will be fine, even better. But be fussy about having the working voltage (for
any electrolytic capacitor) not less than 25 V. All this capacitor is doing is
acting as a "short" to ground for radio frequency noise originating in the
ignition circuit so that the noise does not mess up your radios.
John Goodings, C-FGPJ CH601HD Zodiac
Quoting RotaxEngines-List Digest Server <rotaxengines-list@matronics.com>:
> *
>
> =================================================
> Online Versions of Today's List Digest Archive
> =================================================
>
> Today's complete RotaxEngines-List Digest can also be found in either of the
> two Web Links listed below. The .html file includes the Digest formatted
> in HTML for viewing with a web browser and features Hyperlinked Indexes
> and Message Navigation. The .txt file includes the plain ASCII version
> of the RotaxEngines-List Digest and can be viewed with a generic text editor
> such as Notepad or with a web browser.
>
> HTML Version:
>
>
http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter 18-09-24&Archive=RotaxEngines
>
> Text Version:
>
>
http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter 18-09-24&Archive=RotaxEngines
>
>
> ===============================================
> EMail Version of Today's List Digest Archive
> ===============================================
>
>
> ----------------------------------------------------------
> RotaxEngines-List Digest Archive
> ---
> Total Messages Posted Mon 09/24/18: 2
> ----------------------------------------------------------
>
>
> Today's Message Index:
> ----------------------
>
> 1. 01:22 PM - Capacitors (Hugh McKay)
> 2. 02:11 PM - Re: Capacitors (John Hauck)
>
>
> ________________________________ Message 1
> _____________________________________
>
>
> Time: 01:22:36 PM PST US
> From: Hugh McKay <hgmckay@bellsouth.net>
> Subject: RotaxEngines-List: Capacitors
>
> On the Rotax 912 UL engine wiring diagram one 22,000 UF capacitor at 25V is
> shown in the circuit. If you cannot find one capacitor of the exact Capaci
> tance, can one larger capacitor be used? Can two 10,000 aluminum electrolyt
> ic capacitors connected in parallel at that point in the circuit accomplish
> the same thing?
>
> Hugh G. McKay III, P.E. Fellow. L.M. ASCE
> Senior Consultant
> Worldwide Engineering Inc.
> 4090 North NC Hwy. 16
> Denver, NC 28037
>
> Ph. 704-661-8271
> Fax 704-483-5466
> Email hgmckay@bellsouth.net
> http://www.geo.com (click on Power Division)
> Sent from Mail for Windows 10
>
>
> ________________________________ Message 2
> _____________________________________
>
>
> Time: 02:11:37 PM PST US
> From: "John Hauck" <jhauck@elmore.rr.com>
> Subject: RE: RotaxEngines-List: Capacitors
>
> EBay has all kinds of 22,000 mf capacitors. Here are a few with free
> shipping. Super cheap:
>
>
> https://www.ebay.com/bhp/22000uf-capacitor
>
>
> John Hauck
>
> Kolb MKIII
>
> Titus, Alabama
>
>
> From: owner-rotaxengines-list-server@matronics.com
> [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Hugh
> McKay
> Sent: Monday, September 24, 2018 3:22 PM
> Subject: RotaxEngines-List: Capacitors
>
>
> On the Rotax 912 UL engine wiring diagram one 22,000 UF capacitor at 25V
> is shown in the circuit. If you cannot find one capacitor of the exact
> Capacitance, can one larger capacitor be used? Can two 10,000 aluminum
> electrolytic capacitors connected in parallel at that point in the
> circuit accomplish the same thing?
>
>
> Hugh G. McKay III, P.E. Fellow. L.M. ASCE
>
> Senior Consultant
>
> Worldwide Engineering Inc.
>
> 4090 North NC Hwy. 16
>
> Denver, NC 28037
>
>
> Ph. 704-661-8271
>
> Fax 704-483-5466
>
> Email hgmckay@bellsouth.net
>
> http://www.geo.com (click on Power Division)
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
>
>
Message 5
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Keep in mind that capacitors have a limited lifetime. The electrolites
dry out. It is a real limit at high altitudes and dry climates.
I get mine from digikey and go for the name brands.
Y'all might look over your capacitors at the next annual. Good ones
have dates on them and you can find the recommended lifetimes.
Message 6
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Keep in mind that capacitors have a limited lifetime. The electrolites
dry out. It is a real limit at high altitudes and dry climates.
I get mine from digikey and go for the name brands.
Y'all might look over your capacitors at the next annual. Good ones
have dates on them and you can find the recommended lifetimes.
Message 7
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| Subject: | Re: RotaxEngines-List Digest: 2 Msgs - 09/24/18 |
John, isn't the ignition isolated from the starting/charging circuits
(which is where the capacitor is located)?
On Tue, Sep 25, 2018 at 1:51 PM <goodings@yorku.ca> wrote:
>
> For what it's worth, two 10,000 mF (microfarad) capacitors in parallel
> 20,000
> mF will be almost as good as one 22,000 mF capacitor. One capacitor >
> 22,000 mF
> will be fine, even better. But be fussy about having the working voltage
> (for
> any electrolytic capacitor) not less than 25 V. All this capacitor is
> doing is
> acting as a "short" to ground for radio frequency noise originating in the
> ignition circuit so that the noise does not mess up your radios.
>
> John Goodings, C-FGPJ CH601HD Zodiac
>
>
> Quoting RotaxEngines-List Digest Server <rotaxengines-list@matronics.com>:
>
> > *
> >
> > =================================================
> > Online Versions of Today's List Digest Archive
> > =================================================
> >
> > Today's complete RotaxEngines-List Digest can also be found in either of
> the
> > two Web Links listed below. The .html file includes the Digest formatted
> > in HTML for viewing with a web browser and features Hyperlinked Indexes
> > and Message Navigation. The .txt file includes the plain ASCII version
> > of the RotaxEngines-List Digest and can be viewed with a generic text
> editor
> > such as Notepad or with a web browser.
> >
> > HTML Version:
> >
> >
> >
>
> http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter 18-09-24&Archive=RotaxEngines
> >
> > Text Version:
> >
> >
> >
>
> http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter 18-09-24&Archive=RotaxEngines
> >
> >
> > ===============================================
> > EMail Version of Today's List Digest Archive
> > ===============================================
> >
> >
> > ----------------------------------------------------------
> > RotaxEngines-List Digest Archive
> > ---
> > Total Messages Posted Mon 09/24/18: 2
> > ----------------------------------------------------------
> >
> >
> > Today's Message Index:
> > ----------------------
> >
> > 1. 01:22 PM - Capacitors (Hugh McKay)
> > 2. 02:11 PM - Re: Capacitors (John Hauck)
> >
> >
> >
> > ________________________________ Message 1
> > _____________________________________
> >
> >
> > Time: 01:22:36 PM PST US
> > From: Hugh McKay <hgmckay@bellsouth.net>
> > Subject: RotaxEngines-List: Capacitors
> >
> > On the Rotax 912 UL engine wiring diagram one 22,000 UF capacitor at 25V
> is
> > shown in the circuit. If you cannot find one capacitor of the exact
> Capaci
> > tance, can one larger capacitor be used? Can two 10,000 aluminum
> electrolyt
> > ic capacitors connected in parallel at that point in the circuit
> accomplish
> > the same thing?
> >
> > Hugh G. McKay III, P.E. Fellow. L.M. ASCE
> > Senior Consultant
> > Worldwide Engineering Inc.
> > 4090 North NC Hwy. 16
> > Denver, NC 28037
> >
> > Ph. 704-661-8271
> > Fax 704-483-5466
> > Email hgmckay@bellsouth.net
> > http://www.geo.com (click on Power Division)
> > Sent from Mail for Windows 10
> >
> >
> > ________________________________ Message 2
> > _____________________________________
> >
> >
> > Time: 02:11:37 PM PST US
> > From: "John Hauck" <jhauck@elmore.rr.com>
> > Subject: RE: RotaxEngines-List: Capacitors
> >
> > EBay has all kinds of 22,000 mf capacitors. Here are a few with free
> > shipping. Super cheap:
> >
> >
> > https://www.ebay.com/bhp/22000uf-capacitor
> >
> >
> > John Hauck
> >
> > Kolb MKIII
> >
> > Titus, Alabama
> >
> >
> > From: owner-rotaxengines-list-server@matronics.com
> > [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Hugh
> > McKay
> > Sent: Monday, September 24, 2018 3:22 PM
> > Subject: RotaxEngines-List: Capacitors
> >
> >
> > On the Rotax 912 UL engine wiring diagram one 22,000 UF capacitor at 25V
> > is shown in the circuit. If you cannot find one capacitor of the exact
> > Capacitance, can one larger capacitor be used? Can two 10,000 aluminum
> > electrolytic capacitors connected in parallel at that point in the
> > circuit accomplish the same thing?
> >
> >
> > Hugh G. McKay III, P.E. Fellow. L.M. ASCE
> >
> > Senior Consultant
> >
> > Worldwide Engineering Inc.
> >
> > 4090 North NC Hwy. 16
> >
> > Denver, NC 28037
> >
> >
> > Ph. 704-661-8271
> >
> > Fax 704-483-5466
> >
> > Email hgmckay@bellsouth.net
> >
> > http://www.geo.com (click on Power Division)
> >
> > Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> > Windows 10
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
Message 8
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| Subject: | Re: RotaxEngines-List Digest: 2 Msgs - 09/24/18 |
John, The working voltage for the Rotax 912 UL electrical system is 12 Volt
s DC; much less than the 22,000 MF capacitor at 25 Volts as called for on t
he Rotax engine diagram. How do you explain your statement that the working
voltage should not be less than 25Volts?
Hugh G. McKay III, P.E. Fellow. L.M. ASCE
Senior Consultant
Worldwide Engineering Inc.
4090 North NC Hwy. 16
Denver, NC 28037
Ph. 704-661-8271
Fax 704-483-5466
Email hgmckay@bellsouth.net
http://www.geo.com (click on Power Division)
Sent from Mail for Windows 10
From: goodings@yorku.ca
Sent: Tuesday, September 25, 2018 3:48 PM
Subject: RotaxEngines-List: Re: RotaxEngines-List Digest: 2 Msgs - 09/24/18
For what it's worth, two 10,000 mF (microfarad) capacitors in parallel =
20,000
mF will be almost as good as one 22,000 mF capacitor. One capacitor > 22,00
0 mF
will be fine, even better. But be fussy about having the working voltage (f
or
any electrolytic capacitor) not less than 25 V. All this capacitor is doing
is
acting as a "short" to ground for radio frequency noise originating in the
ignition circuit so that the noise does not mess up your radios.
John Goodings, C-FGPJ CH601HD Zodiac
Quoting RotaxEngines-List Digest Server <rotaxengines-list@matronics.com>:
> *
>
> ========================
> Online Versions of Today's List Digest Archive
> ========================
>
> Today's complete RotaxEngines-List Digest can also be found in either of
the
> two Web Links listed below. The .html file includes the Digest formatted
> in HTML for viewing with a web browser and features Hyperlinked Indexes
> and Message Navigation. The .txt file includes the plain ASCII version
> of the RotaxEngines-List Digest and can be viewed with a generic text edi
tor
> such as Notepad or with a web browser.
>
> HTML Version:
>
>
http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Ch
apter 18-09-24&Archive=RotaxEngines
>
> Text Version:
>
>
http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Cha
pter 18-09-24&Archive=RotaxEngines
>
>
> ========================
=======================
> EMail Version of Today's List Digest Archive
> ========================
=======================
>
>
> ----------------------------------------------------------
> RotaxEngines-List Digest Archive
> ---
> Total Messages Posted Mon 09/24/18: 2
> ----------------------------------------------------------
>
>
> Today's Message Index:
> ----------------------
>
> 1. 01:22 PM - Capacitors (Hugh McKay)
> 2. 02:11 PM - Re: Capacitors (John Hauck)
>
>
> ________________________________ Message 1
> _____________________________________
>
>
> Time: 01:22:36 PM PST US
> From: Hugh McKay <hgmckay@bellsouth.net>
> Subject: RotaxEngines-List: Capacitors
>
> On the Rotax 912 UL engine wiring diagram one 22,000 UF capacitor at 25V
is
> shown in the circuit. If you cannot find one capacitor of the exact Capa
ci
> tance, can one larger capacitor be used? Can two 10,000 aluminum electrol
yt
> ic capacitors connected in parallel at that point in the circuit accompli
sh
> the same thing?
>
> Hugh G. McKay III, P.E. Fellow. L.M. ASCE
> Senior Consultant
> Worldwide Engineering Inc.
> 4090 North NC Hwy. 16
> Denver, NC 28037
>
> Ph. 704-661-8271
> Fax 704-483-5466
> Email hgmckay@bellsouth.net
> http://www.geo.com (click on Power Division)
> Sent from Mail for Windows 10
>
>
> ________________________________ Message 2
> _____________________________________
>
>
> Time: 02:11:37 PM PST US
> From: "John Hauck" <jhauck@elmore.rr.com>
> Subject: RE: RotaxEngines-List: Capacitors
>
> EBay has all kinds of 22,000 mf capacitors. Here are a few with free
> shipping. Super cheap:
>
>
> https://www.ebay.com/bhp/22000uf-capacitor
>
>
> John Hauck
>
> Kolb MKIII
>
> Titus, Alabama
>
>
> From: owner-rotaxengines-list-server@matronics.com
> [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Hugh
> McKay
> Sent: Monday, September 24, 2018 3:22 PM
> Subject: RotaxEngines-List: Capacitors
>
>
> On the Rotax 912 UL engine wiring diagram one 22,000 UF capacitor at 25V
> is shown in the circuit. If you cannot find one capacitor of the exact
> Capacitance, can one larger capacitor be used? Can two 10,000 aluminum
> electrolytic capacitors connected in parallel at that point in the
> circuit accomplish the same thing?
>
>
> Hugh G. McKay III, P.E. Fellow. L.M. ASCE
>
> Senior Consultant
>
> Worldwide Engineering Inc.
>
> 4090 North NC Hwy. 16
>
> Denver, NC 28037
>
>
> Ph. 704-661-8271
>
> Fax 704-483-5466
>
> Email hgmckay@bellsouth.net
>
> http://www.geo.com (click on Power Division)
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
>
>
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