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CARF Galloping Ghost build

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Old 02-10-2018, 11:32 AM
  #51
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I have a 750cc fuel tank. So I installed a 2l coke bottle in the back. The bottle is connected with a T to the overflow line from the fuel tank. After refilling the tank a close the overflow line and pump up the bottle to 0.3bars. And this takes care for constant flow while flying.
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Old 02-10-2018, 04:01 PM
  #52
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Fantastic. I totally get it. Here's why I'm interested. Did you have to lean the engine at all after adding this? Or does is just keep an even flow. Usually when adding a fuel pump, the engine runs a little richer, so have to lean it out. With the CARF Ghost, once the engine is installed, I really can't get to the needles for the the carburetors. unless pulling the engine. I need to figure that out. three carbs = 3 sets of high-low needles.
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Old 02-10-2018, 10:21 PM
  #53
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We installed the system on Simon’s Pitts at Joe Nall. Very easy to handle and very save.
On his Spitfire we didn’t have enough space for a bottle. So we installed the fuel pump. It died at takeoff and I made a deadstick landing faaaaaaar away. Think there is a video on YouTube

to adjust the carbs is needed on the first flights. L you can adjust in flight. But H you need to fly because the engine reaches rpm’s you can’t get on ground. On Voodoo I remove the red covers from the needles so I can get them with a pointed pliers to set H correct. Most time it sounds perfect on ground, but I too rich on flight.
Out team-pilot Simon wrote a good discription in correct English in the thread “all about kolm engines”

The pressure bottle i fill up with a blood pressure device. Normal tools doesn’t have a scale which is fine enough.
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Old 02-11-2018, 12:05 PM
  #54
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Test fit the engine again to get the exhaust tubes to fit out the bottom. Took several times to get the holes aligned. Now that they're centered, I just need a little more trimming. Used hysol to mount the engine front support bracket to the lower cowl. All seems to align nice with the spinner. Need to install throttle & choke servos on the other side of the firewall.
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Old 02-11-2018, 12:14 PM
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another pic of the spinner alignment.
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Old 02-16-2018, 07:23 AM
  #56
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I was just going to mount and test the engine in the air frame, but decided to build a test stand. Since the needles are difficult to get to, it made more sense to test run first and think a little on how to get access to them once the engine is mounted. I'm going to see if I can add some sort of channel to each set of needles that I can access outside the air frame. This trouble is on the carb closest to the firewall. The next two carb I should be able to access a little easier.
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Old 02-16-2018, 08:47 AM
  #57
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Default exhaust holes

Quote:
Originally Posted by rbgetz View Post
Test fit the engine again to get the exhaust tubes to fit out the bottom. Took several times to get the holes aligned. Now that they're centered, I just need a little more trimming. Used hysol to mount the engine front support bracket to the lower cowl. All seems to align nice with the spinner. Need to install throttle & choke servos on the other side of the firewall.

Robert the build is looking great your posts are a great help to the build we have going on here, thanks for all the great pictures. Would you mind giving the measurements for the holes you drilled for the exhaust. Thanks

Todd
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Old 02-16-2018, 10:17 AM
  #58
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Hi Todd... No problem. Just an FYI, my holes were estimated based on the IL-230 and the using the Kolm aluminium standoff's for the engine mount. Also, if you notice, the exhausts come out at an angle and not straight down. So, you have to slide the engine in from the front and slide at an angle towards the back a little. It doesn't drop in straight down. I tried to get measurements as close to the center of the holes that I could. Obviously I would make small holes and trial fit from there. But, it looks like from the bottom/outside of the cowl, the holes seem to be aligned about 0.5" of the center line seam of the fuse. Pictures attached. Then from inside the cowl, the first hole looks to be about 3.5" from the firewall, and then they appear to be evenly spaced at about 3" apart. so, from first hole to second is 3" and second to third about 3".. so... first hole center to third hole center 6". Rob
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Old 02-16-2018, 12:18 PM
  #59
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One more point, my engine was mounted not only with the Kolm aluminium stand-off but also the phenolic washer that was supplied with the CARF Engine installation kit. See picture. So the total stand-off length is slightly longer then the just aluminium stand-off. This should help you get really close.

Rob
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Old Yesterday, 10:45 PM
  #60
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Will you tighten the holes later in shape to the pipes ?
I think about loosing cooling -air when the holes are too big.

Tom
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Old Today, 05:31 AM
  #61
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Hi Tom,

I was thinking about that as well. they are fairly small now, but the issue I had is if they are any smaller, it will be hard to drop the engine in. Good point and I'll have to see what I can do as not to lose cooling.

Rob
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Old Today, 07:43 AM
  #62
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Ok they look very big ? Did you see mine ?

Now go on with building
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