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912s installation

 
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Bill Chenoweth



Joined: 10 Jul 2008
Posts: 9

PostPosted: Mon Aug 18, 2008 4:02 am    Post subject: 912s installation Reply with quote

Noel,
Well, I'm in it past the point of no return. An odd thing is that Kitfox told me that they knew the studs on the water pump had to be adjusted but didn't do it while my new engine was in their shop - so I've returned the housing to them which I gather they are going to modify for free.

My current problem is trying to use the existing very nice, very expensive Rotax fuel line set up from pump to carbs. With the carbs moved outboard and left on their original sides (per Kitfox manual instructions) the fuel line is too short. I can't tell from your pictures if you kept the carbs on their original sides or swapped them. I'm pretty sure if I swap the carbs I can keep the fuel line but I'm guessing there is a good reason for what Kitfox says to do.
Regards,
Bill
[quote] ---


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dcsfoto



Joined: 24 Aug 2006
Posts: 120

PostPosted: Mon Aug 18, 2008 6:05 am    Post subject: Re: 912s installation Reply with quote

What Model Kitfox.
I just did a Model 7, sent the water pump to them for mods ( free ) and did not do anything to the carbs.
the water line out of the pump is a pain. I went and got a 1" copper pipe (6")
and a 45 ELL soldered in a couple of inch stub pipe and it worked great.
David


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PostPosted: Mon Aug 18, 2008 6:30 am    Post subject: 912s installation Reply with quote

Hi David C  can you post a picture?  Thanks C  Jim Chuk  Kitfox 4 building  Mn

Quote:
Subject: Kitfox-List: Re: 912s installation
From: david(at)kelm.com
Date: Mon C 18 Aug 2008 07:05:55 -0700
To: kitfox-list(at)matronics.com

--> Kitfox-List message posted by: "dcsfoto" <david(at)kelm.com>

What Model Kitfox.
I just did a Model 7 C sent the water pump to them for mods ( free ) and did not do anything to the carbs.
the water line out of the pump is a pain. I went and got a 1" copper pipe (6")
and a 45 ELL soldered in a couple of inch stub pipe and it worked great.


David




Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=199254#199254




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Float Flyr



Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

PostPosted: Mon Aug 18, 2008 7:16 am    Post subject: 912s installation Reply with quote

When you get the housing back would you take a picture of it for me and E-Mail it. I’m waiting on some green locktite to set mine but I’m thinking I may need different nipples.

Noel

From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of Chenoweth
Sent: Monday, August 18, 2008 9:31 AM
To: kitfox-list(at)matronics.com
Subject: Re: 912s installation



Noel,

Well, I'm in it past the point of no return. An odd thing is that Kitfox told me that they knew the studs on the water pump had to be adjusted but didn't do it while my new engine was in their shop - so I've returned the housing to them which I gather they are going to modify for free.



My current problem is trying to use the existing very nice, very expensive Rotax fuel line set up from pump to carbs. With the carbs moved outboard and left on their original sides (per Kitfox manual instructions) the fuel line is too short. I can't tell from your pictures if you kept the carbs on their original sides or swapped them. I'm pretty sure if I swap the carbs I can keep the fuel line but I'm guessing there is a good reason for what Kitfox says to do.

Regards,

Bill
Quote:

----- Original Message -----

From: Noel Loveys (noelloveys(at)yahoo.ca)

To: kitfox-list(at)matronics.com (kitfox-list(at)matronics.com)

Sent: Sunday, July 13, 2008 3:37 PM

Subject: RE: Kitfox-List: 912s installation



I’m in the throwes of doing just that to my model III-A which I expect is actually closer to a model II. I’m using the model IV Dynafocal mount and the first thing I’ve found is attaching the engione to the mount is probably easier to do before installing in the plane. One other item is the cooling hoses from the water pump to the cylinder heads will require having the studs (45 deg) will need to be turned a bit to get a decent access to putting the hoses on the pump. You may also need to turn the 45 deg studs on the aft cylinders to get a decent clearance on the aft hoses. These studs are held in place with green locktite ( penetrating) and will need to be very carefully heated to remove, clean and reinstall in the correct direction. It was advised to me that Llight Engine Rep[airs uses a rod turned down on a lathe to insert into the studs for removal. I don’t happen to have a lathe or any 1” aluminium stock so I had to substitute brass and a file. If you want to try this remember the old rule don’t grind anything that doesn’t spark so use a file. It may take a lot longer but it will be worth it.

Also be careful removing the top of the pump.. you may want to do that to get a better grasp on the part and to remove the O-ring that is inside the pump inlet.
http://www.matronics.com/Navigator?Kitfox-List
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Noel Loveys
Kitfox III-A
Aerocet 1100 Floats
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Float Flyr



Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

PostPosted: Mon Aug 18, 2008 8:42 am    Post subject: 912s installation Reply with quote

David:
Can you post a picture of the mods done to your pump?

Noel

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Noel Loveys
Kitfox III-A
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CDE2fly(at)aol.com
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PostPosted: Mon Aug 18, 2008 7:20 pm    Post subject: 912s installation Reply with quote

I went through he same process with my pump for the 912S/Model 7. Regarding the discharge line from the water pump, NAPA (the automotive parts company) makes the perfect solution (preformed hose of the right diameter and bend angle). I can't recall the part number but John from Kitfox Aircraft will know. As I recall, I had to order it but had it within a week and didn't cost much.

It's only a deal if it's where you want to go. Find your travel deal here.
[quote][b]


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Bill Chenoweth



Joined: 10 Jul 2008
Posts: 9

PostPosted: Thu Aug 28, 2008 12:16 pm    Post subject: 912s installation Reply with quote

Noel,
I've sent you (off list) some photos of the "adjusted" water pump cover but I think they might have gotten caught in your spam filter. Did you get them?
Bill
[quote] ---


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JetPilot



Joined: 10 Jan 2006
Posts: 1246

PostPosted: Sat Aug 30, 2008 9:34 am    Post subject: Re: 912s installation Reply with quote

Can you post those pictures on the list. I am also building a model 7 with a Rotax 912-S, and I would be willing to bet that many more of this combination will be built in the future. This would be good information to have posted here on the list.

Thanks,

Mike


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Kolb MK-III Xtra, 912-S
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Float Flyr



Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

PostPosted: Mon Sep 01, 2008 4:48 pm    Post subject: 912s installation Reply with quote

Sorry I didn’t get them but it may have been my fault. Please send them again to noelloveys(at)yahoo.ca (noelloveys(at)yahoo.ca)

Noel

From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of Chenoweth
Sent: Thursday, August 28, 2008 5:45 PM
To: kitfox-list(at)matronics.com
Subject: Re: 912s installation



Noel,

I've sent you (off list) some photos of the "adjusted" water pump cover but I think they might have gotten caught in your spam filter. Did you get them?

Bill
Quote:

----- Original Message -----

From: Noel Loveys (noelloveys(at)yahoo.ca)

To: kitfox-list(at)matronics.com (kitfox-list(at)matronics.com)

Sent: Sunday, July 13, 2008 3:37 PM

Subject: RE: Kitfox-List: 912s installation



I’m in the throwes of doing just that to my model III-A which I expect is actually closer to a model II. I’m using the model IV Dynafocal mount and the first thing I’ve found is attaching the engione to the mount is probably easier to do before installing in the plane. One other item is the cooling hoses from the water pump to the cylinder heads will require having the studs (45 deg) will need to be turned a bit to get a decent access to putting the hoses on the pump. You may also need to turn the 45 deg studs on the aft cylinders to get a decent clearance on the aft hoses. These studs are held in place with green locktite ( penetrating) and will need to be very carefully heated to remove, clean and reinstall in the correct direction. It was advised to me that Llight Engine Rep[airs uses a rod turned down on a lathe to insert into the studs for removal. I don’t happen to have a lathe or any 1” aluminium stock so I had to substitute brass and a file. If you want to try this remember the old rule don’t grind anything that doesn’t spark so use a file. It may take a lot longer but it will be worth it.

Also be careful removing the top of the pump.. you may want to do that to get a better grasp on the part and to remove the O-ring that is inside the pump inlet.

Pictures following: http://www.matronics.com/Navigator?Kitfox-List
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Noel Loveys
Kitfox III-A
Aerocet 1100 Floats
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