Bungee Installation

[Brian]

[QUOTE=Glen Geller;128412]I don't recall which is preferred to install first, the 5/8" dia (1080) or the 3/4" dia (1280), does anyone recall which size goes on the hydrosorbs first?

I starting using the 1080HD 1280HD combo following the TW conversion (now 30 years ago) which puts more weight on mains. Yes a little stiff for the first few months but I got a lot longer life span between bungee changes with the combo.

I started out putting the larger 1280HD on first and the 1080HD on top and did that for probably 6 ore 8 times. My thinking was the 1280HD is stiffer so being on the bottom stretches it less.

In recent times, maybe the last 4 times, I've been putting the larger 1280HD on top of the 1080HD since the smaller 5/8th bungee fits down in the hydrasorb ears better and provides more room for the 3/4 inch to flatten out.

Either way the top bolt is an interference fit. I normally put a thin aluminum scrap metal strip between the bungee and the bolt which allows the bolt head to be tapped with a hammer past the bungee with no damage to the outer cloth.

[Steve Pierce]

There are some earlier posts in this thread on which to install first and why. I can't remember but I do know we were able to remove one because we did it the opposite and it was a scary process.

[sierrasplitter]

I have the Stewart Hanger 21 Bungee Tool from the Club here at the house now . The instructions say to install the 1080
first

” This will leave more seating area for the larger 1280 in the small end of the hydrosorb “

They also enclose two testimonials from members who used the come along method on the gear . I have the engine hoist and stap for my install but I can see where the other way may give you more control for bolt alignment where putting it all back together

[doc]

I've done them both ways, the 1080 then 1280 definitely works better for exactly the reason their instructions note. as to installing the hydrasorb/bungee combo in the aircraft, I've always found that that the engine hoist to lift worked best for me

I have the Stewart Hanger 21 Bungee Tool from the Club here at the house now . The instructions say to install the 1080
first

” This will leave more seating area for the larger 1280 in the small end of the hydrosorb “

They also enclose two testimonials from members who used the come along method on the gear . I have the engine hoist and stap for my install but I can see where the other way may give you more control for bolt alignment where putting it all back together

[Brian]

I've done them both ways, the 1080 then 1280 definitely works better for exactly the reason their instructions note. as to installing the hydrasorb/bungee combo in the aircraft, I've always found that that the engine hoist to lift worked best for me

I also believe I greatly extended the life of the bungees if I lift rock the wings after rolling back into the hanger, to allow the tires to slide inward and fully unload the bungees. You really don't have to lift the tires off the ground just get some weight off in a rocking motion by grasping the struts up at the wings and the bungees will fully collapse the hydrosorbs. I might add I don't fly that much in recent years. If flying often I would save my back and leave them stretched.

[sierrasplitter]

Well, taking them out was easy 1 hour 15 minutes start to finish on that part - solo No help
Bungees are about to be cut off but I think I have a problem
Over time someone has Grinded off some of the top tab on one side
Both shocks are that way
I think I may have to buy new top pieces

57D3623F-1203-4B4F-B525-F041A16239AF.jpeg


069732CA-45D9-4ABF-B12F-4937E00F0AD6.jpeg

I flipped one over both ears should look
like the one on the left as you guys know

WHY WOULD SOMEONE DO THAT ?

Now it’s gonna cost me 180 a side to buy new top pieces

[sierrasplitter]

I may have to bite the bullet and get new top pieces . These are Bent


5B890586-B55B-44A8-8C1F-A504195F4690.jpeg

How do you remove them ? I see a small roll pin

[sierrasplitter]

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And the bottom looks like someone again grinded off the side

[Steve Pierce]

I don't think the side of the ears will effect anything, not sure why someone did that though. It does look like the top has a bowed to it. I probably have some tops if needed.

[sierrasplitter]

Thanks Steve ! But once I saw had bad they were I started poking around the internet and found a whole set of top and bottoms , both sides for 110 bucks . Impatiently waiting for them to arrive .
These are both bowed . Hard to imagine . No cracks , just bent