Doing c-85 up grade, how to you know if the header tank fuel valve is right one.

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The valve that I have, has 3/8 pipe thread at both ends, the valve inside diameter is 19/64 in. the same inside diameter that the an fitting has.

Jerry Lane

[Pearson]

Re: Doing c-85 up grade, how to you know if the header tank fuel valve is right one.

Jerry,

According to the service bulletin from Gilberti Aviation dated Jan 17, 1962, the valve required by STC SA1-210, which is the STC now owned by Terry Bowden on this forum, is Imperial valve No. 108-HD-3/8" or equivalent valve with 3/8" ports. I think the key thing is the part about the equivalent valve. I am sure if you get in touch with Terry, he could tell you which valves meet the requiremenet for being equivalent. If your current valve is for 3/8" diameter tubing, there is a good chance it will work, but I would check with Terry and your IA. This is one of those areas where you REALLY want to double and triple check for the correct set up. As always, I for one would appreciate hearing more about which valves meet the requirement for equivalency.

[astjp2]

Re: Doing c-85 up grade, how to you know if the header tank fuel valve is right one.

I have the information you need on the valves, Terry has the STC for the engine conversion, but a new PMA'd valve has never existed since the 1970's unless someone had one on the shelf. I can send you a pic of what you need if you PM me your email. Tim

The valve that I have, has 3/8 pipe thread at both ends, the valve inside diameter is 19/64 in. the same inside diameter that the an fitting has.

Jerry Lane