Fresh air / heater slider help needed |
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Fresh air / heater slider help needed |
914xr75 |
Jul 22 2020, 08:20 PM
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#1
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Member Group: Members Posts: 174 Joined: 24-March 18 From: Whittier, CA Member No.: 21,996 Region Association: Southern California |
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914xr75 |
Jul 25 2020, 04:24 PM
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#2
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Member Group: Members Posts: 174 Joined: 24-March 18 From: Whittier, CA Member No.: 21,996 Region Association: Southern California |
Still looking for tips on this
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PanelBilly |
Jul 25 2020, 04:30 PM
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#3
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914 Guru Group: Members Posts: 5,807 Joined: 23-July 06 From: Kent, Wa Member No.: 6,488 Region Association: Pacific Northwest |
Look at the other end of the cables where they connect to the air distribution box in the frunk. They might need adjustment or lubrication
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Larry.Hubby |
Jul 25 2020, 06:28 PM
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#4
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Member who doesn't post much, but has a long time in 914s Group: Members Posts: 186 Joined: 24-November 04 From: Palo Alto, CA Member No.: 3,172 Region Association: Northern California |
I notice the two that won't move through the whole range are the ones that move the flaps in the air boxes and determine how much goes up vs how much goes down. If your car is early (pre-'72) someone might've left pens or pencils on top of the dash and they rolled into the defrost outlets at the base of the windshield, fell into the air boxes, and are now blocking the flaps from moving all the way closed one way or the other. I know it sounds silly, but this happened on my car and I broke one of the air box flaps trying to force the lever. I found out what had happened much later when I had occasion to take out the air boxes. You can check for this simply by removing the grilles on the outlets under the dash. If there's anything there it will fall out when you do this. The later cars have some ridges on the inside of the defrost air ducts, which I believe are there to prevent this very thing from happening.
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rgalla9146 |
Jul 26 2020, 07:22 AM
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#5
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Advanced Member Group: Members Posts: 4,554 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None |
How important is function to you ?
It is not an easy operation. The only thorough way to know where the resistance is is to remove control panel and the cables. By doing so you can verify that the side valves and the center flap are free. With the control panel out the cables can be evaluated and cleaned and the wire straightened. Or replaced. Identify and label each one so they are returned to proper location. The holding clips leave marks that help in returning each to original adjustment. To get all three levers to move over their full range without any 'spring back' will be an achievement. While you're at it check for damage at the sliding electrical contacts for the three speed fan. They are often melted. If very bad the only remedy is replacement. Lever effort can be adjusted at the center pivot. Your chrome face trim will clean up and look new. The black facia can look great too.....how patient are you ? |
914xr75 |
Jul 26 2020, 07:46 AM
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#6
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Member Group: Members Posts: 174 Joined: 24-March 18 From: Whittier, CA Member No.: 21,996 Region Association: Southern California |
Thanks for all the advice. When I have a few days off and a lot of patience I'm going to tackle this one. You guys are the best!
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