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Old 02-18-2012, 11:20 AM   #1
smizo
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Well guys last week the big day arrived...... well one of the big days in this build. my engine showed up from Barrett Precision Engines. Its a beautiful engine, they did a great job! its built up from a superior kit engine. the options i went with are as follows:
Forward Facing Cold AirSilverhawk Fuel Injection9:1 Comp PistonsFlow/Port the CylindersSlick MagsMetallic Platinum and Black PaintB&C SD8 Alternator with Inverted Oil Pickup AdapterSky-Tec inline hi-torque lightweight starterRoller LiftersSet Up For Fixed Pitch
as equiped it weights 286 lbs, and put out 191HP on the dyno! im pretty excited and we mounted it on the plane for the first time last night. cool!
now i need to get my exhaust from aircraftexhaust.net and im going to replace the flywheel with the lightened one from skydynamics. heres some pics:
















today im going to be making the gussets for the engine mount. i held off on fabricating them till the engine was mounted up to make sure they wont interfere with them. its a good thing i did, as the breather fitting will. also, i have to change the location of the oil pressure fitting. theres a boss on the rear of the engine for it with 2 possible locations. the one the fittings installed in is real close to the mount, and with normal operations it will work the mount. everything lined up perfectly and the hour job i thought it was going to be to hang the thing turned out to be a 10 minute job!









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Old 02-18-2012, 11:53 AM   #2
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WAY COOL!



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Old 02-18-2012, 12:17 PM   #3
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what prop are you going to use?

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Old 02-18-2012, 12:32 PM   #4
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Catto 3 blade 72 dia, pitch to be determined.

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Old 02-18-2012, 12:59 PM   #5
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Looks like Allen and the guys did another great job.
Piper uses a 90 degree fitting to get the oil pressure line away from the engine mount ring. Piper's price is expensive for what it is.

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Old 02-18-2012, 03:38 PM   #6
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Neat. Is that your secretary or finance officer in the last photo figuring up all the costs?
Best regards,
Brad

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Old 02-18-2012, 03:43 PM   #7
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Haha exactly!

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Old 02-18-2012, 04:03 PM   #8
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"the hour job i thought it was going to be to hang the thing turned out to be a 10 minute job!"

That doesn't happen very often!

"Pretty. Very Pretty. But can they FIGHT?" (The fake general from the Dirty Dozen.)
If Barrett built it, it can fight!

Looking good.




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Old 02-18-2012, 04:04 PM   #9
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[img]smileys/smiley20.gif[/img] Now it's looking like an airplane!

Very nice!


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Old 02-18-2012, 05:41 PM   #10
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It looks like your dipstick tube may be kind of close to your dynafocal ring. Do you have any clearance there. I had to go to a Pitts style dynafocal ring to get my dipstick tube some clearance.

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Old 02-18-2012, 06:38 PM   #11
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A thing of beauty! Very cool.
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Old 02-18-2012, 08:37 PM   #12
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thanks for the comments guys. the dipstick looks real close from that pic angle. it has enough clearance so it wont hit. if the engine flexes enough for the dipstick to hit, the ring gear will be through the cowl. also, to help with this problem i have a call into lord to get their spacers with the silicon bag around them. they are supposed to really reduce engine shaking during starting. they dont make them as a kit for the 7401-2 mount that i have, but they are the same dimension as one of their kits for a mooney that they do include them with. im trying to get them to sell me just the spacer. ill talked to them friday and he's supposed to call me back monday. ill keep ya posted. heres a pic of the oil press fitting interference. a 90 deg fitting would work, but that would have to be put in before the accessory case is put on, as it would hit the engine case when you turn it. so ill be putting on a straight fitting next to it and moving the plug to this location.........



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Old 02-18-2012, 08:51 PM   #13
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Smizo, what I really like about your acrosport: In these days of spam cans, RV's and fancy LSA's, you have rekindled an older biplane design and made it seriously cool.

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Old 02-18-2012, 09:04 PM   #14
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Thanks Beej![img]smileys/smiley16.gif[/img]

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Old 02-19-2012, 12:30 PM   #15
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Second on Beej's input. Way cool to see the motor on.

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Old 02-20-2012, 12:16 AM   #16
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Here is a photo ofwhat Piperuseson a Cherokee or Aztec. Fitting is brass and they want over $30 for it.Thread is 1/8" npt in and out.
It can be replaced while engine is installed on plane.

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Old 02-20-2012, 01:00 AM   #17
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nice...... that would work perfect, if it didnt have that other port there i would go with that. put it does, so ill just put a straight fitting in the port and plug the hole its in now. thanks for the idea though!

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Old 02-20-2012, 01:40 AM   #18
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You can buy that identical brass fitting at Ace Hardware for less then $5.


Danny

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Old 02-20-2012, 01:41 AM   #19
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Duh! Less than $5.


Danny

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Old 02-21-2012, 06:28 PM   #20
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Weatherhead 90 degree street elbow, 3400 x 2, $1.95 from Aircraft Spruce. Pitts uses these

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Old 06-09-2012, 01:06 AM   #21
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Soooo, after starring at this thing hanging on the mount for the last few months, Vic's comment has been eating at me. The dipstick was close to the mount and it probably would have been ok but I'm not building this thing on probablys. There was no way I was going to rebuild my mount, so I was searching for ideas. Was going to grind a clearance in the side of the tube as its pretty heavy wall. I didnt like that idea as it would look unprofessional. A guy at work was up looking the project over and he came up with a solution that I'm embarrassed I didn't of! One thing I've learned from years of working on aircraft is sometimes it takes a fresh set of eyes to realize the obvious! He suggested just cutting it down! Wow, what a great idea! I tried a short tube from a 540 but it had the wrong thread, so Jim took it to his shop and parted it off and removed 7" from the tube then lathed it down and made a ridge so it fit back together perfectly. Next cut a "V" in the joint to weld it back together. I painted it up, cut 7" off the dipstick and installed it. Annnnnnddddd..... Best part, took some weight off the engine ;-)





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Old 06-09-2012, 01:17 AM   #22
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Nice! Sometimes, the obvious is so difficult to see.

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Old 06-09-2012, 01:29 AM   #23
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yea how bout it!

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Old 06-09-2012, 04:01 AM   #24
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Pretty slick Smizo.



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OOPS you can fix with a paper towel. UH OH is going to require more money.
Building Acro Sport II NX11ND
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