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Ram Air Duct Installation

 
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TucsonCol



Joined: 22 Feb 2006
Posts: 2
Location: Tucson, AZ

PostPosted: Tue Mar 14, 2006 11:23 am    Post subject: Ram Air Duct Installation Reply with quote

I have been looking and and talking to several people about installing the Ram air ducts and it seem simple enough until I get ready to actually put them on. Here are the steps that I am having problems with.
1. There are 4 angle brackets that apparently rest on top of the cylinders without anything between them and the cylinder fins. (Is that correct?)
There are two little holes in the brackets, how are the wires connected to it and held down.
2. The pictures/illustrations in the instructions show a wire going around the cylinder head but not through the brackets, and does it matter where the wire goes around the cylinder?
3. The pictures/illustrations also show the wire twisted and the spring somehow connected to the wire wrapped around the cylinder. Where is it connected and should there be play in the wire?
4. The spring that holds down the ram duct connects to the ram duct somewhere, but I have no idea if there should be one point of attachment.

Does anyone have a good set of instructions or some pictures that show how it all goes together. It probably is obvious once seen, but I would like to see how someone else has it done. Anyone?
thanks in advance


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zodiacjeff(at)msn.com
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PostPosted: Tue Mar 14, 2006 1:19 pm    Post subject: Ram Air Duct Installation Reply with quote

I have been looking and and talking to several people about installing the Ram air ducts and it seem simple enough until I get ready to actually put them on. Here are the steps that I am having problems with.
1. There are 4 angle brackets that apparently rest on top of the cylinders without anything between them and the cylinder fins. (Is that correct?)

+++ Yes.

There are two little holes in the brackets, how are the wires connected to it and held down.

+++ Thread safety wire through one hole, down under cylinder to other "butterfly" angle, then back under, up through, twist.

2. The pictures/illustrations in the instructions show a wire going around the cylinder head but not through the brackets, and does it matter where the wire goes around the cylinder?

+++ Nope.
3. The pictures/illustrations also show the wire twisted and the spring somehow connected to the wire wrapped around the cylinder. Where is it connected and should there be play in the wire?

+++ No play, you can forget the spring, didn't use it here.

4. The spring that holds down the ram duct connects to the ram duct somewhere, but I have no idea if there should be one point of attachment.

+++ Attach a piece of safety wire in a large loose loop around center cylinder and use as per one of these photos.

cheers jeff - these photos from my CH601 but the installation can't be that different.

Does anyone have a good set of instructions or some pictures that show how it all goes together. It probably is obvious once seen, but I would like to see how someone else has it done. Anyone?
thanks in advance


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pkrotje(at)athenet.net
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PostPosted: Tue Mar 14, 2006 2:11 pm    Post subject: Ram Air Duct Installation Reply with quote

Take a look at the Zenith FWF instructions found at www.usjabiru.com. Just
get past the first page and on the second page click on Zenith FWF Kit.
Open the "Fit Ram Air Cooling Ducts instructions. You may also find the
"Connect Engine" instructions helpful. Another source for hints is the
"Tech Tips" section of www.usjabiru.com

Pete

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Gilles.Thesee(at)ac-greno
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PostPosted: Tue Mar 14, 2006 2:41 pm    Post subject: Ram Air Duct Installation Reply with quote

Pete Krotje a crit :

Quote:


Take a look at the Zenith FWF instructions found at www.usjabiru.com. Just
get past the first page and on the second page click on Zenith FWF Kit.
Open the "Fit Ram Air Cooling Ducts instructions. You may also find the
"Connect Engine" instructions helpful. Another source for hints is the
"Tech Tips" section of www.usjabiru.com




Pete,

Maybe the URL is wrong, or US Jabiru made something wrong, but there is
only one page on the website, and it is some beginner's tuto for setting
up one's website in a few easy steps...
They say it's their future website....

Regards,
Gilles Thesee
Grenoble, France
http://contrails.free.fr


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jonh(at)flinthills.com
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PostPosted: Tue Mar 14, 2006 3:28 pm    Post subject: Ram Air Duct Installation Reply with quote

I would like to add some comments on the ram air duct installation I
recently did on a 3300 in a Zenith 601XL

1. There was an interference with the left duct and the left front engine
mount rubber donut. I cut a hole in the duct adjacent to the donut and then
made a dimpled patch on the inside of the duct. Pete says it is possible to
carefully heat the fiberglass with a heat gun and push the material in to
form a dimple to provide clearance for the donut.

2. I had to trim my ducts a fair amount around the cylinders inboard and
around the valve covers outboard in order for the spark plug boot holes to
line up properly with the spark plugs. Don't drill the screw holes in the
ducts until you are really sure they fit right or you will regret it.

3. I found that in some places on the outboard edges of the ducts they
don't fit tight against the valve covers, and can't really be made to
without a lot of rework. I just put some washers on the inside of the ducts
adjacent to the screw holes so that when the screws are tightened the ducts
don't crack.

Hope this helps

---


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TucsonCol



Joined: 22 Feb 2006
Posts: 2
Location: Tucson, AZ

PostPosted: Tue Mar 14, 2006 3:36 pm    Post subject: Ram Air Duct Installation Reply with quote

Hi Jeff,
I appreciate your response to my post, but you mentioned pictures, and I don't see any pictures, or don't know how to get to them. Did you intend to put them on the post, or is there some reference I am missing.
thanks in advance,
bruce noon
Do Not Post
--
(520) 760-5925
Tucson,AZ 85750

-------------- Original message --------------
From: "Jeff Small" <zodiacjeff(at)msn.com>

Quote:





I have been looking and and talking to several people about installing the Ram
air ducts and it seem simple enough until I get ready to actually put them on.
Here are the steps that I am having problems with.
1. There are 4 angle brackets that apparently rest on top of the cylinders
without anything between them and the cylinder fins. (Is that correct?)

+++ Yes.

There are two little holes in the brackets, how are the wires connected to it
and held down.

+++ Thread safety wire through one hole, down under cylinder to other
"butterfly" angle, then back under, up through, twist.

2. The pictures/illustrations in the instructions show a wire going around
the cylinder head but not through the brackets, and does it matter where the
wire goes around the cylinder?

+++ Nope.


3. The pictures/illustrations also show the wire twisted and the spring
somehow connected to the wire wrapped around the cylinder. Where is it
connected and should there be play in the wire?

+++ No play, you can forget the spring, didn't use it here.

4. The spring that holds down the ram duct connects to the ram duct
somewhere, but I have no idea if there should be one point of attachment.

+++ Attach a piece of safety wire in a large loose loop around center cylinder
and use as per one of these photos.

cheers jeff - these photos from my CH601 but the installation can't be that
different.

Does anyone have a good set of instructions or some pictures that show how it
all goes together. It probably is obvious once seen, but I would like to see
how someone else has it done. Anyone?
thanks in advance


























Hi Jeff,
I appreciate your response to my post, but you mentioned pictures, and I don't see any pictures, or don't know how to get to them. Did you intend to put them on the post, or is there some reference I am missing.
thanks in advance,
bruce noon
Do Not Post
--
(520) 760-5925
Tucson,AZ 85750

-------------- Original message --------------
From: "Jeff Small" zodiacjeff(at)msn.com

-- JabiruEngine-List message posted by: "Jeff Small" <ZODIACJEFF(at)MSN.COM>




I have been looking and and talking to several people about installing the Ram
air ducts and it seem simple enough until I get ready to actually put them on.
Here are the steps that I am having problems with.
1. There are 4 angle brackets that apparently rest on top of the cylinders
without anything between them and the cylinder fins. (Is that correct?)

+++ Yes.

There are two little holes in the brackets, how are the wires connected to it
and held down.

+++ Thread safety wire through one hole, down under cylinder to other
"butterfly" angle, then back under
, up through, twist.

2. The pictures/illustrations in the instructions show a wire going around
the cylinder head but not through the brackets, and does it matter where the
wire goes around the cylinder?

+++ Nope.


3. The pictures/illustrations also show the wire twisted and the spring
somehow connected to the wire wrapped around the cylinder. Where is it
connected and should there be play in the wire?

+++ No play, you can forget the spring, didn't use it here.

4. The spring that holds down the ram duct connects to the ram duct
somewhere, but I have no idea if there should be one point of attachment.

+++ Attach a piece of safety wire in a large loose loop around center cylinder
and use as per one of these photos.

cheers jeff - these photos from my CH601 but the installation can't be that <B
R> different.

Does anyone have a good set of instructions or some pictures that show how it
all goes together. It probably is obvious once seen, but I would like to see
how someone else has it done. Anyone?
thanks in advance
















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Jim Stone



Joined: 24 Apr 2006
Posts: 4
Location: Clearwater FL USA

PostPosted: Tue Apr 25, 2006 7:12 pm    Post subject: Re: Ram Air Duct Installation Reply with quote

Hi Bruce, Send me your Email address and I'll ship you a couple photos.

Also the new Jabiru kits have ram air ducts that have the plug wires inside rather then sticking through holes in the sides. Which configuration do you have. I modified my old ones.

There have also been suggestions to add a exhaust elbow to the back of the ducts to direct air at the mags in hot climates.

My address is jsto1(at)tampabay.rr.com


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Jabiru J450 N450SJ
Clearwater FL USA
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