 Flapper in heater fan, What does it do ? |
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| Olympic 914 |
 Jul 3 2017, 07:46 AM
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The heater fan motor was pretty cruddy so I disassembled it and polished the armature and greased the ends then bench tested it and it ran pretty good. loosened the bolts on the housing and while it was running wiggled it around a bit until it ran the smoothest. when I reassembled it I noticed a clear plastic flapper inside the blower housing. No spring on it to hold it closed. When I put the fan in the car with the outlets pointed in what looked to be the best direction, pointing towards the pass side, the flapper valve hung open.
Looked at the "originality photos" and see that the outlet was installed to point straight up (?) in this position the flapper closes by gravity and would open whenever the fan is blowing. What does this flapper do ? |
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Posts in this topic
Olympic 914 Flapper in heater fan Jul 3 2017, 07:46 AM
malcolm2 My guess is that it keeps "stuff" out of... Jul 3 2017, 08:17 AM BeatNavy Or maybe to keep the engine fan from pulling hot a... Jul 3 2017, 08:21 AM
malcolm2
Or maybe to keep the engine fan from pulling hot ... Jul 3 2017, 09:35 AM rhodyguy Outlets, plural? Are you using an early fan? Jul 3 2017, 08:26 AM Olympic 914
Outlets, plural? Are you using an early fan?
Or... Jul 3 2017, 08:59 AM rhodyguy Your car should have a single outlet fan with a sp... Jul 3 2017, 09:16 AM McMark Factory diagrams show the fan outlet pointing damn... Jul 3 2017, 01:01 PM Olympic 914
Factory diagrams show the fan outlet pointing dam... Jul 4 2017, 06:56 AM McMark Here's all I see in the manuals:
AND
It's ... Jul 4 2017, 07:52 AM Spoke When the heating fan is not on, the engine cooling... Jul 4 2017, 08:44 AM  |
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