Rotax 912 exhaust springs lock wires

[peterholmes]

hi all

 

I just checked my 912 exhaust springs on last preflight, I normally run my hand over the spring to see if it may be loose or broken and I caught my skin on one of the stainless safety wire where it had frayed, so i pulled on it with somer pliers and it broke away, probably has lasted ok considering 328 hours,

 

but i wouild like to hear how long the safety wires should last,

 

how soon should thay be replaced??

 

a better way of replacing them ?? suggestions?

 

looks like brake or throttle cable wire that has a swage on the end, or is it a "special" thing

 

thanks guys :big_grin:

 

 

[alf jessup]

Pete,

 

Just go buy some good quality tie wire and a set of tie wire pliers, cant remember what gauge it is but will look at mine when i'm next out at the airfield and let you know.

 

Cheers

 

Alf

 

 

[bilby54]

Hi Pete,

 

The flexible wire is good.

 

Put a bead of high temperature (orange) silicon on the springs and both them and the lock wire will last for a long time - works a treat.

 

Cheers

 

 

[Guest milton56]

Hi Pete

 

I have a 912uls in my Savannah. I used the wire and silicone method and so far have had no problems.

 

Milton56:thumb_up:

 

 

[Dieselten]

The lock-wires are fishing trace, with aluminium fishing-trace swages to fit. You can get both, and the correct swaging-tool, at most fishing-shops or sports stores.

 

Permatex 26B is a good high-temp sealant to apply to damp vibrations on the springs.