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Ellison TB Diaphragm

scottm

Member
I have an Ellison TB EFS-4 need a diaphragm the part number I have is
DG1-HD i ordered one but not sure its the right one , does anyone know if this is the right one,
Thanks
 
35 years now with 2 Ellisons on the Defiant.

One DG1-HD was needed in 2021, and the other gave up late 2022.

The failed parts both show less flexibility in their coated fabric, which I assume is the eventual effect of the fuel exposure. The result of that stiffness is reduced diaphragm plate excursion into the fuel valve levers. The last failure was in-flight and showed as inability to achieve full power.

The last one was even ordered from Amazon :)
 
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