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    • Still no answer?
  • Haven’t heard yet, I have emailed Alissa.
    • I thought this was answered? It goes from the ECU to the engine high pressure fuel pump mounted on the engine. Nothing to do with any of the fuel pumps that are providing the 43PSI to the high pressure pump mounted on the engine.
  • Early wire looms had this available so the fuel pump could come on with the ECU power. It is for a fuel pump relay. Since the pumps now only draw 1.6A each, and have their own switches, tape off and disregard this wire.
  • It is not used. Early wire looms had a fuel pump relay trigger wire so you could have the pump come on wen powering the ECU on
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Viking Aircraft Engines replied to Dale Medendorp's discussion Coupling hoses in cooling system
"Perfect"
1 hour ago
Dale Medendorp replied to Dale Medendorp's discussion Coupling hoses in cooling system
"Thanks for the replies. I bought some 1" I'd heater hose. The temperature rating of radiator hose is 257 and heater hose is 250. The rubber heater hose is an exact match (dimensional) to the Silicone hose."
2 hours ago
John Nealon replied to Dale Medendorp's discussion Coupling hoses in cooling system
"The silicone hoses are available on Amazon."
4 hours ago
Viking Aircraft Engines replied to Dale Medendorp's discussion Coupling hoses in cooling system
"No, you can use regular good quality radiator hose. The silicone might last longer."
6 hours ago
Dale Medendorp posted a discussion
I need to replace one of the coupling hoses and can't find a local source. Is it necessary to use Silicone hoses or is rubber ok. Is silicone recommended because of the Evans coolant?Dale
6 hours ago
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