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Thread: Changing rear belts on 1978 PA-18

  1. #1

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    Changing rear belts on 1978 PA-18

    I decided it was time to replace the original belts on my stock 1978 cub, as the rear shoulder harness was terribly frayed and didn't even come within two inches of the passenger's shoulders. The installation of the front set went smoothly enough, but when I went to do the rear belts I got stuck. The bolts holding the rear belt in place is in an incredibly tight spot, and I can't even see the nut when I look down in there. I can't tell if it's even accessible without removing the side aluminum panel, and frankly, I didn't want to mess with it too much and cause more problems.

    Any simple tips on this? Or are there variations in how the original belts are installed that make a simple answer impossible? Ultimately I can just hand it over to my mechanic and have him install them, but I'm trying to learn how to do simple things on my plane as I go, so if this is doable, I'd like to figure it out.

  2. #2
    www.SkupTech.com mike mcs repair's Avatar
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  3. #3

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    Each plane is so different that you have to be ready to pull most everything out to get it done. Pulling panels sounds simple but I have seen planes built (mine) in such a way that you have to pull dash off to get panels out due to large panel overlap. If the nut is on the inside of the tab it should not be too har as long as you can get a wrench on the bolt head, If panel is cut tight around the bolt may have to be removed to get wrench on bolt head. If you get real ambitious you can always take a dremmel tool to the panel and enlarge the hole around the bolt.
    DENNY
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  4. #4
    wireweinie's Avatar
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    This is why a steel nut should be welded to the outboard side of the tab.

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  5. #5
    supercrow's Avatar
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    Quote Originally Posted by DENNY View Post
    Each plane is so different that you have to be ready to pull most everything out to get it done. Pulling panels sounds simple but I have seen planes built (mine) in such a way that you have to pull dash off to get panels out due to large panel overlap. If the nut is on the inside of the tab it should not be too har as long as you can get a wrench on the bolt head, If panel is cut tight around the bolt may have to be removed to get wrench on bolt head. If you get real ambitious you can always take a dremmel tool to the panel and enlarge the hole around the bolt.
    DENNY
    If you go that route, maybe get a shop vac going while you're grinding. Lot less left in the fuselage.
    Likes DENNY liked this post

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