ArVeeNiner
Well Known Member
Any last minute tips for wing final installation on a 9A? (Update)
Hi all:
I think I'm going put the wings on for good this weekend. I've been studying the posts and I think I have a pretty good handle on what gotchas I should look out for. This is what I understand:
-Don?t forget to install the 4 each AN4-13A bolts.
-Don?t forget to put washers under the heads of the bottom 4 bolts on each side, and under the nuts of the top 4 bolts.
-Lube each bolt with Boelube or white grease but avoid lube on the threads.
-Tapping the bolts into place using a rivet gun is the ticket. CAREFUL, only put each bolt just far enough in each hole to get the nuts started. Too far and you won?t be able to get the nuts on.
-The bottom nuts are a pain to start. Gluing them to a Popsicle stick helps.
-Using an air ratchet to turn the heads of the bottom bolts while holding the nuts via the Popsicle stick is the bomb.
-The torque value of the close tolerance bolts: ?? bolts: 50-70 in/lbs, 7/16? bolts: 450-500 in/lbs all plus running torque.
-The bottom fasteners must be torqued from the bolt head end due to the inaccessibility of the nuts.
-The close tolerance bolts on the 9A shows the nuts facing forward but any orientation is fine with Vans. Installing per print appears to work fine for most people.
-The rear spar attach bolt is shown installed with 3 washers under the nut and none under the bolt head. Van?s says one washer could go under the head if you want. I like that much better.
-Putting the bolts in the freezer won?t hurt and may make it better. Vans suggested this to me today.
-I thought I read that there is a preferred installation order for the close tolerance bolts but I cannot find it. It had something to do with nut accessibility. Anybody know?
So, what have I forgotten? Are there any more tips that I've missed?
Thanks
Hi all:
I think I'm going put the wings on for good this weekend. I've been studying the posts and I think I have a pretty good handle on what gotchas I should look out for. This is what I understand:
-Don?t forget to install the 4 each AN4-13A bolts.
-Don?t forget to put washers under the heads of the bottom 4 bolts on each side, and under the nuts of the top 4 bolts.
-Lube each bolt with Boelube or white grease but avoid lube on the threads.
-Tapping the bolts into place using a rivet gun is the ticket. CAREFUL, only put each bolt just far enough in each hole to get the nuts started. Too far and you won?t be able to get the nuts on.
-The bottom nuts are a pain to start. Gluing them to a Popsicle stick helps.
-Using an air ratchet to turn the heads of the bottom bolts while holding the nuts via the Popsicle stick is the bomb.
-The torque value of the close tolerance bolts: ?? bolts: 50-70 in/lbs, 7/16? bolts: 450-500 in/lbs all plus running torque.
-The bottom fasteners must be torqued from the bolt head end due to the inaccessibility of the nuts.
-The close tolerance bolts on the 9A shows the nuts facing forward but any orientation is fine with Vans. Installing per print appears to work fine for most people.
-The rear spar attach bolt is shown installed with 3 washers under the nut and none under the bolt head. Van?s says one washer could go under the head if you want. I like that much better.
-Putting the bolts in the freezer won?t hurt and may make it better. Vans suggested this to me today.
-I thought I read that there is a preferred installation order for the close tolerance bolts but I cannot find it. It had something to do with nut accessibility. Anybody know?
So, what have I forgotten? Are there any more tips that I've missed?
Thanks
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