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  Topic: 912 Fuel Manifold
johnelling

Replies: 2
Views: 4596

PostForum: RotaxEngines-List   Posted: Sun Nov 11, 2018 8:44 am   Subject: 912 Fuel Manifold
The original builder of my titan tornado did not include a fuel manifold
with fuel return line.  Rotax does not like this so I've been planning
to add one along the lines of the figure in section ...
  Topic: Capacitors
johnelling

Replies: 5
Views: 6999

PostForum: RotaxEngines-List   Posted: Tue Sep 25, 2018 1:20 pm   Subject: Capacitors
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 ...
  Topic: 912 Cylinder head coolant temperature Gauge
johnelling

Replies: 13
Views: 11457

PostForum: RotaxEngines-List   Posted: Sun Apr 15, 2018 10:12 am   Subject: 912 Cylinder head coolant temperature Gauge
I had a problem like this and finally solved it with a resistor, 1kohm I
think, in line with the probe.  It is the same fix they recommend for
the tach.

I have the new cylinder heads on my 91 ...
  Topic: RotaxEngines-List Digest: 1 Msgs - 10/09/17
johnelling

Replies: 1
Views: 3944

PostForum: RotaxEngines-List   Posted: Tue Oct 10, 2017 12:13 am   Subject: RotaxEngines-List Digest: 1 Msgs - 10/09/17
Right.  A few  weak  revolutions at best.  Often no revolutions at all.

On 10/10/2017 8:03 PM, RotaxEngines-List Digest Server wrote:

I h ...
  Topic: hard Starting Rotax 912ULS
johnelling

Replies: 9
Views: 11752

PostForum: RotaxEngines-List   Posted: Sat Oct 07, 2017 12:09 pm   Subject: hard Starting Rotax 912ULS
I had a similar-sounding problem with my Rotax 912ULS.  It turned out to
be the sprag clutch. When the problem began, the engine started better
when warm but would not start when cold.  When I f ...
  Topic: Airraft Exhaust
johnelling

Replies: 0
Views: 3181

PostForum: RotaxEngines-List   Posted: Sat May 20, 2017 1:01 pm   Subject: Airraft Exhaust
David, the "Aircraft Exhaust" folks I used have the aircraftexhaust.net
web site and were located in Dayton, MN when they ripped me off. I'd
assume you were dealing with the same folks ...
  Topic: Avoid Aircraft Exhaust, Inc. !
johnelling

Replies: 2
Views: 4932

PostForum: RotaxEngines-List   Posted: Sun May 14, 2017 12:17 am   Subject: Avoid Aircraft Exhaust, Inc. !
Avoid Aircraft Exhaust in MN and now in FL. Rich Lopez and "Matt" took
my $1695 in 2012 for what they advertised on their web site as a quieter
exhaust for a Rotax 912. They never deli ...
  Topic: Coolant Hose
johnelling

Replies: 15
Views: 18088

PostForum: RotaxEngines-List   Posted: Sun Jan 15, 2017 12:46 am   Subject: Coolant Hose
I've replaces all the coolant and oil hoses with the "blue" silicone
from various autoparts catalogs. No problems. You can get
pre-fabricated bends as needed. Makes for a nice clean i ...
  Topic: 912 exhaust for sale
johnelling

Replies: 0
Views: 2804

PostForum: RotaxEngines-List   Posted: Sun Nov 27, 2016 1:49 pm   Subject: 912 exhaust for sale
I replace the original exhaust system on my Titan Tornado. The old one
for sale is a 4-cylinder into one can. This was from a top-mounted
pusher engine configuration. Email me if you are intere ...
  Topic: RotaxEngines-List Digest: 5 Msgs - 09/07/16
johnelling

Replies: 0
Views: 2698

PostForum: RotaxEngines-List   Posted: Fri Sep 09, 2016 8:49 am   Subject: RotaxEngines-List Digest: 5 Msgs - 09/07/16
All, I had exactly the same symptoms years ago. I cleaned the carb
ports and it went away. On both carbs the main port and the idle port
looked PERFECTLY CLEAN when I took the carbs off but none ...
  Topic: Old style 912ULS SMD module up on ebay
johnelling

Replies: 0
Views: 2340

PostForum: RotaxEngines-List   Posted: Sat Apr 25, 2015 10:57 am   Subject: Old style 912ULS SMD module up on ebay
I converted my older 912 USL to the soft-start start modules. These
have 690 hours on them and worked fine when I removed them. Rotax part
number 966 721. Lockwood sells these new for more than ...
  Topic: Rotax HD Starter for a 912 on ebay
johnelling

Replies: 0
Views: 2191

PostForum: RotaxEngines-List   Posted: Wed Apr 22, 2015 10:40 am   Subject: Rotax HD Starter for a 912 on ebay
I'm pretty sure it has less than 690 hours and it is in good working
condition. If anyone is interested.
  Topic: "Mil Spec" Rotax 914
johnelling

Replies: 1
Views: 2379

PostForum: RotaxEngines-List   Posted: Tue Sep 17, 2013 6:10 am   Subject: "Mil Spec" Rotax 914
There is a guy selling a military spec 914 fuel injected engine on
Barnstormers. I think it is off a predator drone.

One modification I can see is the turbo is top-mounted.

Does anyone have a ...
  Topic: Trouble starting a 912 ULS
johnelling

Replies: 4
Views: 3749

PostForum: RotaxEngines-List   Posted: Fri Aug 02, 2013 9:08 am   Subject: Trouble starting a 912 ULS
Folks,

One more data point on the trouble starting: It is not the battery
current. I've connected a truck battery in parallel with the plane's
battery (so the ignition is switching more amps) ...
  Topic: Trouble starting a 912 ULS
johnelling

Replies: 4
Views: 3749

PostForum: RotaxEngines-List   Posted: Fri Aug 02, 2013 8:00 am   Subject: Trouble starting a 912 ULS
Folks,

I've gradually had trouble starting a ULS with the 912 Rotax high torque
starter. First it did not like starting when it was cold. Then the
sprag seemed to come disengaged without turni ...
  Topic: Hard start 912ULS
johnelling

Replies: 6
Views: 4717

PostForum: RotaxEngines-List   Posted: Sun May 26, 2013 7:03 pm   Subject: Hard start 912ULS
Starting my 912 has been increasingly difficult. it seems as if the starter has a hard time turning over the engine (it is a high-torque version). I thought it was a weak battery but the problem per ...
  Topic: Fuel return line
johnelling

Replies: 29
Views: 15791

PostForum: RotaxEngines-List   Posted: Wed Apr 03, 2013 12:18 pm   Subject: Fuel return line
Folks, I've followed the fuel return line thread and I can see that the
912 ULS installation manual calls for a fuel manifold with a return line
to the tank. My 912 ULS on my Titan Tornado does n ...
  Topic: Muffler for a top-mount 912 pusher (avoid Aircraft Exaust)
johnelling

Replies: 0
Views: 1566

PostForum: RotaxEngines-List   Posted: Thu Feb 28, 2013 8:31 am   Subject: Muffler for a top-mount 912 pusher (avoid Aircraft Exaust)
Every time my neighbor's Remos silently taxis by my hangar I feel the urge for a muffler for my Titan Tornado's 912. It is a pusher configuration and the muffler should be a top mount. No luck findin ...
 
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