 Fresh Air Blower, Sound, but no fury |
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| rwilner |
 Oct 4 2010, 08:35 AM
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#1
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No Ghosts in the Machine  Group: Members Posts: 953 Joined: 30-March 10 From: Boston, MA Member No.: 11,530 Region Association: North East States  |
When I put both black levers to the right, I can hear the fresh air fan blowing but the airflow out the defrost and dash vents is quite minimal. The fan does work on all 3 speeds.
Similarly -- I just reattached all my heat, and even with the booster fan going in the engine compartment, there is just not much airflow. The engine compartment hose and the flapper --> firewall hose are new, the HX's are SSIs in good shape as is the rest of the engine compartment plumbing. What level of airflow should I expect? What should i check or refurbish to get better CFMs? |
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| PanelBilly |
Oct 4 2010, 08:46 AM
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#2
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914 Guru Group: Members Posts: 5,817 Joined: 23-July 06 From: Kent, Wa Member No.: 6,488 Region Association: Pacific Northwest 
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Take a close look at the paper tubes that the air flow in and see if there's holes. Check the ones behind the speakers too.
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| rwilner |
Oct 4 2010, 08:50 AM
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#3
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No Ghosts in the Machine Group: Members Posts: 953 Joined: 30-March 10 From: Boston, MA Member No.: 11,530 Region Association: North East States |
QUOTE(PanelBilly @ Oct 4 2010, 10:46 AM)  Take a close look at the paper tubes that the air flow in and see if there's holes. Check the ones behind the speakers too. Yeah -- they seem ok but they sure are old and crappy. Does anyone know the ID of the required tubing? Has anyone had luck sourcing it at a FLAPS or hardware store? I'm getting tired of mailordering parts from CA every week. |
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| Drums66 |
Oct 4 2010, 12:16 PM
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#4
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914 Rudiments Group: Members Posts: 5,321 Joined: 15-January 03 From: Coronado,Cali Member No.: 151 Region Association: Southwest Region |
QUOTE(rwilner @ Oct 4 2010, 07:50 AM) QUOTE(PanelBilly @ Oct 4 2010, 10:46 AM) Take a close look at the paper tubes that the air flow in and see if there's holes. Check the ones behind the speakers too. Yeah -- they seem ok but they sure are old and crappy. Does anyone know the ID of the required tubing? Has anyone had luck sourcing it at a FLAPS or hardware store? I'm getting tired of mailordering parts from CA every week. ...Don't forget V-dub shops for that kind of thing! (IMG:style_emoticons/default/bye1.gif) no #'s |
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| rwilner |
Oct 4 2010, 12:38 PM
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#5
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No Ghosts in the Machine Group: Members Posts: 953 Joined: 30-March 10 From: Boston, MA Member No.: 11,530 Region Association: North East States |
I'm going to buy some of this tubing -- it has the same ID as the crappy paper hose, is rated to 200 deg F, and is $0.50/ft.
Thoughts on that? |
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Posts in this topic
rwilner Fresh Air Blower Oct 4 2010, 08:35 AM
rhodyguy where do you have the bottom lever positioned? Oct 4 2010, 08:50 AM
rwilner
where do you have the bottom lever positioned?
T... Oct 4 2010, 08:54 AM Tom_T I agree Rich, if you've verified that your fan... Oct 4 2010, 11:03 AM rwilner
I agree Rich, if you've verified that your fa... Oct 4 2010, 11:43 AM burton73 I just rebuild the air box flapper box in a super ... Oct 4 2010, 11:59 AM McMark Our fresh air boxes like to collect leaves, acorns... Oct 4 2010, 12:37 PM rwilner
The levers work as follows:
Top Lever - Fresh air... Oct 4 2010, 01:42 PM McMark Get this 60mm paper tubing. It's OE style. Oct 4 2010, 12:41 PM jim_hoyland Be sure nothing has fallen into the windshield air... Oct 4 2010, 02:12 PM rwilner ok, an update:
Did some investigating and the pas... Oct 4 2010, 05:53 PM McMark Red lever has nothing to do with the fresh air blo... Oct 4 2010, 06:48 PM rwilner
Red lever has nothing to do with the fresh air bl... Oct 5 2010, 06:15 AM Racer Chris Rich, the McMaster link you provided is for a 5/16... Oct 5 2010, 09:52 AM rwilner
Rich, the McMaster link you provided is for a 5/1... Oct 5 2010, 10:54 AM rwilner
[quote name='Racer Chris' post='1379544' date='Oc... Oct 5 2010, 11:00 AM McMark The link I sent for paper tube is ~$5 / ft. ... Oct 5 2010, 12:08 PM |
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