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07-12-2009, 07:31 PM
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Join Date: Jun 2005
Location: Milwaukee, WI area
Posts: 2,967
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Can I secure the primer lines this way?
I've been thinking of different ways to secure my primer lines, and I came up with this idea...
Is this an acceptable method to do this? It's just a standard non-mil spec zip tie, and clear vinyl tubing. It works great to keep the line from moving, but I wonder about the proximity to the exhaust.
Yay? Nay?
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Chad Jensen
Astronics AES, Vertical Power
RV-7, 5 yr build, flew it 68 hours, sold it, miss it.
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07-12-2009, 08:07 PM
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Join Date: Jul 2006
Location: Corvallis Oregon
Posts: 3,547
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Sweet
But I would use automotive fuel hose instead of the vynil tubing..Its nylon reinforced and won't melt.
Frank
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07-13-2009, 09:35 AM
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Join Date: Aug 2005
Location: Virginia Beach, VA
Posts: 474
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I'd also be concerned about the zip-tie chaffing the copper tubing. Easy to fix. Take a 2" section of the tubing (I usually use the harder Poly tubing), slit it and place it around the copper tubing. Zip-tie this to the copper tubing and use it to prevent chaffing from your zip-tie to the manifold you have shown.
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Tim Ribble
Virginia Beach
RV-6A (only took 13 years to build  )
N621TR In unrestricted operation 
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07-13-2009, 10:08 AM
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Join Date: Jun 2005
Location: Cedar Park, TX
Posts: 3,152
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I would avoid the zip tie in that location. I have my primer lines in that area secured with two cushion clamps. One large one around the intake tube, and a small one around the primer line.
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Scott Card
CQ Headset by Card Machine Works
CMW E-Lift
RV-9A N4822C flying 2200+hrs. / Cedar Park, TX
RV8 Building - fuselage / showplanes canopy (Done!)
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07-13-2009, 10:13 AM
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Join Date: Jun 2005
Location: SoCal
Posts: 2,452
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Quote:
Originally Posted by scard
I have my primer lines in that area secured with two cushion clamps. One large one around the intake tube, and a small one around the primer line.
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Got pics? (extra text)
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Axel
RV-4 fastback thread and Pics
VAF 2020 paid VAF 704
The information that I post is just that; information and my own personal experiences. You need to weight out the pros and cons and make up your own mind/decisions. The pictures posted may not show the final stage or configuration. Build at your own risk.
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07-13-2009, 11:17 AM
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Join Date: Jul 2006
Location: Corvallis Oregon
Posts: 3,547
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The zip tie
shouldn't chaf the CU tube unless there is movement between the tube and the ziptie..But then again the extra cover is not a bad idea just in case.
Frank
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07-13-2009, 01:03 PM
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Join Date: Jun 2005
Location: Milwaukee, WI area
Posts: 2,967
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Thanks fella's...I think I'll switch 'em to cushion clamps.
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Chad Jensen
Astronics AES, Vertical Power
RV-7, 5 yr build, flew it 68 hours, sold it, miss it.
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07-13-2009, 05:46 PM
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Join Date: Jun 2005
Location: SoCal
Posts: 2,452
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Quote:
Originally Posted by scard
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Thank you. That is a nice looking engine.
__________________
Axel
RV-4 fastback thread and Pics
VAF 2020 paid VAF 704
The information that I post is just that; information and my own personal experiences. You need to weight out the pros and cons and make up your own mind/decisions. The pictures posted may not show the final stage or configuration. Build at your own risk.
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