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Post by Deleted on Jun 10, 2014 7:52:41 GMT -5
I have been meaning to ask this question for a long time and just keep forgetting.
I want to know at what angle do you drill the hole to install the fuel filler on EMD tanks. The filler has a bend in it. I have tried drilling a hole perpendicular to the slope of the tank, but then the neck is at to high of an angle. I have always had to bend the fuel filler neck to get it correct.
So what angle do you drill the hole at or does everyone here just wing it and hope for the best?
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Post by icghogger on Jun 10, 2014 8:54:35 GMT -5
Brian, I use an adjustable protractor when drilling at an angle. In this case, I would set the angle with the filler pipe and place the protractor against the tank to help guide the drill bit. Another option would be to make a template that fit around the profile of the tank with the angle for drilling the filler hole marked on the vertical side of the template. Or, you can just wing it......
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Post by Deleted on Jun 10, 2014 8:57:15 GMT -5
So what is the angle supposed to be? The part that is inserted into the tank.
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Post by icghogger on Jun 10, 2014 9:05:25 GMT -5
OK, I had to check this for myself. Measuring the slope of an Atlas fuel tank, the angle of a Cannon filler pipe would be 35 degrees, but the angle to drill for the hole to fit a Cannon filler pipe would be about 25 degrees.
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Post by Deleted on Jun 10, 2014 9:49:12 GMT -5
So taking the slope as your 0 plane, measure up from that 25 degrees.
If that is correct, I will have to put this in my RPM presentation.
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Post by icghogger on Jun 10, 2014 11:41:16 GMT -5
The zero reference is from the bottom edge if the tank. You might want to consider using a template for repeatable results. |
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Post by ssgburme on Jun 11, 2014 13:34:04 GMT -5
I'll get an angle from a -2 in the next couple of days. I'll check my SDP40 fuel tank blueprint also.
Karl
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Post by stevef45 on Jun 12, 2014 1:51:31 GMT -5
wow so my method is pretty wrong then lol. i drill a hole then start angling the bit till im drilling at an angle that suits me. then just jam the filler in and move it around till it looks good lololol
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Post by Deleted on Jun 12, 2014 6:56:46 GMT -5
I'll get an angle from a -2 in the next couple of days. I'll check my SDP40 fuel tank blueprint also. Karl Karl, It would be great to get that information. When I had access locomotives, I never thought to get that. It does appear that 25 degrees on the filler neck is right. Last night I drilled the holes. With the filler neck at 25 degrees off the bottom of the tank, the hole needs to be drilled at 55 degrees. Remember, the detail part has a bend in it. My method for installing the filler is as follows. 1. Locate on the tank where the hole needs to be. 2. Draw a line from the center of the hole to the end of the tank. 3. Using an adjustable protractor set at 55 degrees, I drew a line on the end of the tank that meets the line I drew from the hole center. 4. Clamp the fuel tank in my milling machine so the line I drew on the end of the tank is vertical and drill the hole. After installing the filler pipe, it actually looks like it is at the correct angle. No more trying to approximate the angle. Thanks Robert. Karl, I still would like to get your information. |
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milw199
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Post by milw199 on Jun 23, 2014 14:47:09 GMT -5
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Post by Deleted on Jun 23, 2014 15:05:48 GMT -5
I have to model one of those for a 6xxx series Mopac SD40-2.
What I am going to do is use brass stock. Before making the bends, I will add the fat collar by flattening somr brass wire and then wrapping and soldering it around a piece of brass wire that is teh correct tube diameter. The drill out the end of the wire and insert the cap from a DA EMD Fuel Tank Fitting set.
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fr8kar
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Post by fr8kar on Jun 23, 2014 21:14:33 GMT -5
I have to model one of those for a 6xxx series Mopac SD40-2. What I am going to do is use brass stock. Before making the bends, I will add the fat collar by flattening somr brass wire and then wrapping and soldering it around a piece of brass wire that is teh correct tube diameter. The drill out the end of the wire and insert the cap from a DA EMD Fuel Tank Fitting set. Which SD40-2s in the 6000 series have that outside filler neck? I'm familiar with the three fillers per side, but haven't seen a good enough photo that details that outer bend. |
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fr8kar
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Post by fr8kar on Jun 23, 2014 23:26:23 GMT -5
Nevermind, I found it on some photos. I didn't bother with modeling any of Mopac's PRB SD40-2s so it never crossed my mind to look at them for a fourth filler.
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milw199
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Post by milw199 on Jun 25, 2014 13:42:53 GMT -5
The shots I posted with the outside filler are D&H-UP-WAMX GP39-2s.  They have another filler towards the rear of the tank, capped off. |
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