 What do the air plenum flaps do? |
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| Grosbard |
 Mar 30 2021, 04:33 PM
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#1
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Member  Group: Members Posts: 88 Joined: 29-September 09 From: Pasadena, CA Member No.: 10,862 Region Association: Southern California 
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Hi all! I'm curious what the air plenum flaps do, and I'm hoping someone can educate me, please. I'm referring to the parts mentioned in this thread:
http://914world.com/bbs2/index.php?showtopic=349044 My guess is that they prevent water and rocks and other stuff from getting to the air-cooled fan...am I correct? Would missing these flaps hurt engine cooling? (I can't see how, but I might be missing some part of the picture) Also, what makes the flaps open? Just the low air pressure on the intake side of the fan? Thanks for your help! |
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| brant |
Mar 30 2021, 04:36 PM
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914 Wizard Group: Members Posts: 12,008 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains 
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I didn't check your link...
but if your talking about the air flaps on the motor nothing to do with water... they are responsible for diverting the cool air over your oil cooler do not remove them unless you want to burn up your engine make them work... ideally with a thermostat the thermostat and spring pressure are what make them work |
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| Grosbard |
Mar 30 2021, 04:44 PM
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#3
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Member Group: Members Posts: 88 Joined: 29-September 09 From: Pasadena, CA Member No.: 10,862 Region Association: Southern California
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Hi @brant . No, I'm talking about the flaps on the intake side of the cooling fan. It's hard to describe them, but that link has a great photo. Or this photo from 914rubber is also good (parts #19 and 20 on this photo):
https://914rubber.com/914/914-engine/air-cooling |
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Posts in this topic
Grosbard What do the air plenum flaps do? Mar 30 2021, 04:33 PM
Mark Henry Yes they work on air pressure and yes they actuall... Mar 30 2021, 04:55 PM
Grosbard
Yes they work on air pressure and yes they actual... Mar 30 2021, 05:01 PM barefoot Ah, thank you Mark! So let me rephrase to mak... Mar 30 2021, 06:07 PM GregAmy To further clarify...they're simple doors that... Mar 30 2021, 06:54 PM |
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