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  #11  
Old 05-31-2017, 05:42 AM
Aircraft Specialty Aircraft Specialty is offline
 
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Quote:
Originally Posted by sf3543 View Post
Rotax has a service instruction, SI-912-022, which is a cancellation of the five year replacement requirement for fuel hoses, for a lot of the 912 engines, since they came from the factory with teflon hoses.
Although it doesn't address the oil and coolant hoses, it is worth looking at and could save a lot of time and money.
This probably should go in another thread. This thread is about prefabricated rigid fuel lines in the cabin and doesn't address anything firewall forward.

Steve
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  #12  
Old 05-31-2017, 05:47 AM
TS Flightlines TS Flightlines is offline
 
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The carb hoses on the 912 are indeed Stratoflex 101, a great hose. The others, unless recently been changed were firesleeve over automotive 100R30 hose, with barbed fittings and clamps. The Oil hoses are teflon, the coolant hoses are automotive EPDM hoses from NAPA.

Many builders substitute molded silicone hoses for the coolant hoses during the first annual. From what we've heard, they have had good results.

Tom
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  #13  
Old 05-31-2017, 08:44 AM
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Jetguy Jetguy is offline
 
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Originally Posted by TS Flightlines View Post
Many builders substitute molded silicone hoses for the coolant hoses during the first annual. From what we've heard, they have had good results.

Tom
Have you guys thought of adding a coolant hose kit to your inventory?
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  #14  
Old 05-31-2017, 09:25 AM
Aircraft Specialty Aircraft Specialty is offline
 
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Originally Posted by Jetguy View Post
Have you guys thought of adding a coolant hose kit to your inventory?
The discussion has absolutely come up. But there are no definite plans for that at the moment. We won't be able to run our standard type conductive Teflon hoses in that configuration. Once we get to the firewall forward area of our airplane, I will take a close look at it and see if there may be a good aftermarket retrofit for it.

Steve
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  #15  
Old 06-01-2017, 04:56 AM
TS Flightlines TS Flightlines is offline
 
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Hi John--
well yep Steve and I have talked about it. Since Steve is building one, we'll get some first hand data on these, and maybe come up with a solution.
Back in the race car days, we'd use Earls Performa flex hose. But it still has a synthetic rubber liner, but probably better than whats currently available other than silicone. Obviously flexibility would be a major issue. WE may address this this summer.

Tom
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