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Old 06-10-2010, 07:37 PM
Sheriff_Austin Sheriff_Austin is offline
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Default Fan Blower?

I just keep coming up with new ways to annoy you all

The air movement in the passenger compartment is AWFUL. The difference between low and high on the blower is not much. When I turn it on high, it makes more noise, but the airflow is barely faster.

What do I need to troubleshoot/replace here to get good amount of flow here? Keep in mind this is just "VENT", no A/C (thats another project -- R-12 is RIDICULOUS and to convert to R-134 seem like a PITA)

Summer's a' comin' and I'm already dying!
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Old 06-10-2010, 09:06 PM
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Question Re: Fan Blower?

The door(s) that control airflow in the system might not be "flipped" right to get the best airflow. This can happen due to the age of these cars.

Have you ever heard a "thunk" or "whap" sound from under the dash? That might be an indication this is happening.
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Old 06-10-2010, 10:07 PM
Sheriff_Austin Sheriff_Austin is offline
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Default Re: Fan Blower?

I only hear that sound when turning the system from "OFF" to "VENT" which I figure is normal. Ill look at those doors though...
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Old 06-10-2010, 10:17 PM
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Exclamation Re: Fan Blower?

FWIW, the R134a conversion is not that hard. And there is a complete procedure on the site. (Surprise!)
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Old 07-02-2010, 12:17 PM
Sheriff_Austin Sheriff_Austin is offline
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Default Re: Fan Blower?

So I am back to revisiting the blower now the the car actually runs properly :-)

Scott - You mentioned in a previous reply the "doors" may not be opened properly. Where are these doors? Behind the dash? Do I need to take the dash off to access them?

And in reply, no, there is no big "whack" or "thrump" when turning the vent on.
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Old 07-02-2010, 12:27 PM
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Default Re: Fan Blower?

Some diagrams from the service manual that might clarify a bit ..
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Old 07-02-2010, 12:52 PM
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Default Re: Fan Blower?

MONEY.

Thanks Ken. I'm sure I could lock it down now :-)
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Hotwired Syclone FP
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Hooker 2.5" Exhaust
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Old 07-02-2010, 01:05 PM
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Thumbs up Re: Fan Blower?

The diagrams added merit stickification.
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Old 07-02-2010, 01:11 PM
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Default Re: Fan Blower?

I second that motion!
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Comp Cam 206/206
Hotwired Syclone FP
Adj. FP Reg
Hooker 2.5" Exhaust
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  #10  
Old 07-02-2010, 01:30 PM
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Default Re: Fan Blower?

Have you taken the blower out and tried to look inside the plastic cowl to see if anything is blocking the air flow??? Like a mouse nest or particles of dust and dirt that can partially cover the evaporator and heater core... That could also give bad flow... I think you can only see the evaporator core, but it is worth a look... Tom G.
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