I'm interested in changing my 4" venturis to 8/9" to increase vacuum pressure. I currently have one 4" on each side on a 170A.
cwienk.cfi(at)gmail.com
ISO: 8/9" Venturi tube(s)
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DaveF
- Posts: 1562
- Joined: Sat Nov 03, 2007 1:44 am
Re: ISO: 8/9" Venturi tube(s)
I've got two you can have. Worked great until recently removed.
PM me an address and I'll send them.
PM me an address and I'll send them.
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Last edited by DaveF on Fri May 16, 2025 3:56 pm, edited 1 time in total.
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brianm
- Posts: 148
- Joined: Fri Dec 09, 2016 12:04 am
Re: ISO: 8/9" Venturi tube(s)
I may have one in my hangar, I'll check the next time I'm out there. To help you with your search, the term "Super Venturi" is often used for 9-inch venturis. I believe it also crosses to Cessna part # 0511318-1. Univair has them brand new for $121.80.
Be careful with the salvage yards. They all carry lots of 4" venturis (AN5807-1) and they look so similar that it's easy to get the wrong part by mistake. When I was in the same boat some years ago I got the wrong venturi twice from one of the more reputable companies.
Be careful with the salvage yards. They all carry lots of 4" venturis (AN5807-1) and they look so similar that it's easy to get the wrong part by mistake. When I was in the same boat some years ago I got the wrong venturi twice from one of the more reputable companies.
Brian M
N2669V - '48
N2669V - '48
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GAHorn
- Posts: 21281
- Joined: Fri Apr 12, 2002 8:45 pm
Re: ISO: 8/9" Venturi tube(s)
It’s been discussed in other threads that Cessna placed dual venturiis on the Right side (see the IPC) and that venturiis on the Left side have been discovered to be “coasting” and ineffective.
I personally suspect that propeller “whirlwind” is the culprit of this oddity.
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'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
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