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Steve & Nancy Riffe
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Date: 2-2-2012
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Number of Hours: 2.00
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Manual Reference:
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Brief Description: Installing Center Section Bolts-1
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On the RV-8 quick build there are 12 bolts that are left out during assembly that need to be installed. The manual has you begin QB assembly on page 8-42. This skips the 2 or 3 lines on page 8-10 which refers to installing these bolts. The plans call for 12 AN4-11A bolts, AN960-416L washers and AN365-428 nuts. These bolts go thru the F804A2 center section bulkhead and the F804F1 center section bar. The bolt heads are on the forward side of the bulkhead and must be torqued from that side (no room in the spar cavity for a torque wrench). I did not want to turn the bolt heads against the anodized bulkhead, so I used an AN960-416L washer on the bolt head side. Now with a washer on each end, there is not enough threads showing after adding the nut. I substituted the bolts for AN4-12A, with a thin washer under the bolt head and a regular washer on the nut side. When tightened, it left 2 to 3 threads showing. Now that I got the hardware figured out the real fun began. If you are reading this log, install these bolts early—before the control column and rudder cables are installed. I taped a washer wrench to one end of a yard stick and a wrench to the other end. It was easy to get the washer on, but the nuts were not so much fun. Nancy turned the bolt heads while I “fished” with the AN365 nuts taped into the wrench. Long story short, after a couple of hours, I had 9 of the bolts installed and torqued. Hope to get the rest tomorrow night.
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Washer install tool
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Rather "ugly" looking wrench, but effective
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Pic looking thru the spar cavity
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