Fuel drain valve part number

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harejac
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Fuel drain valve part number

Post by harejac »

I’ve got a leaky fuel drain valve on 1946 C140, but I can’t seem to find the part number. I believe it’s a CAV-170 but I can’t confirm. Can anyone help provide confirmation on the part number?
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6597
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Re: Fuel drain valve part number

Post by 6597 »

Mine are CAV170 but I think if you look closely you will see a stamping on yours. IIRC there is some discussion on pipe thread and straight thread on the fuel tanks.
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6183
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Re: Fuel drain valve part number

Post by 6183 »

Additionally to what David has said, it wouldn’t be a bad idea to read through all these postings on the subject first. There are different drains that were utilized during the Cessna 120/140 production run.

Mike

https://www.cessna120140.com/Forum2018/ ... ?f=7&t=387
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tonycondon
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Re: Fuel drain valve part number

Post by tonycondon »

I had a dripping valve and along the way discovered that somehow i had one wing with straight threads and the other with pipe threads!
N2395N
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6643
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Re: Fuel drain valve part number

Post by 6643 »

tonycondon wrote: ↑Fri May 09, 2025 11:54 am I ... discovered that somehow i had one wing with straight threads and the other with pipe threads!
You're not the only one.

I was going to suggest a swap, but one wing with a flap and one without would probably be less desirable.
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