Blower motor, purpose? necessary? Options

[surfdogskier]

Hey guys,

What exactly is the purpose of this blower in the engine bay? My situation is I don't have hoses attached. I've been running my car without it hooked up.

I read that a couple of threads that you don't necessarily need it. You can cap off the hole on the driver side (mine is currently open). As it is right now, after I run her a little while, she smokes out of it a bit until she cools.

Thanks,
Jason

[theer]

(IMG:style_emoticons/default/agree.gif)

It’s a single speed fan actuated by the handle with the red knob between the seats.

Also, regarding the defroster, the engine itself will blow warm air up to the front - assuming everything else is hooked up and working, but as George says, engine speed impacts volume. The fresh air fan adds air volume, too, but unheated, of course.

[Olympic 914]

(IMG:style_emoticons/default/agree.gif)

It’s a single speed fan actuated by the handle with the red knob between the seats.

Also, regarding the defroster, the engine itself will blow warm air up to the front - assuming everything else is hooked up and working, but as George says, engine speed impacts volume. The fresh air fan adds air volume, too, but unheated, of course.

The blower adds air into the heat exchangers. so it does get heated before heading into the cabin.
if your J-tube is uncapped the air from the big fan housing on front of the engine will escape into the engine compartment instead of going into the passenger compartment.

You should NOT get smoke out of the J-tube. and if you cap it and the rest of your heater parts are hooked up correctly that smoke will travel into the driver/passenger area.

There may be oil in your heat exchangers causing the smoke or Worse there is an internal leak in the HE's and exhaust gasses will travel into the passenger compartment.

Very BAD.