Blower motor, purpose? necessary? |
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Blower motor, purpose? necessary? |
surfdogskier |
Aug 3 2020, 07:44 AM
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#1
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Member Group: Members Posts: 164 Joined: 20-May 16 From: East TN Member No.: 20,019 Region Association: None |
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 Attached thumbnail(s) |
craigcardella |
Aug 3 2020, 07:50 AM
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#2
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Newbie Group: Members Posts: 1 Joined: 2-August 20 From: Valdosta GA Member No.: 24,564 Region Association: South East States |
I believe it's for the heater/defroster. I live where its usually warn, so I removed the heater stuff to have more room for my twin carb set-up.
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Frankvw |
Aug 3 2020, 08:10 AM
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#3
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working on my first 914 ! Group: Members Posts: 651 Joined: 13-April 16 From: Holland, the Netherlands Member No.: 19,896 Region Association: Europe |
Here in the Netherlands, at the bi-yearly mandatory tech test from our DMV, we need it. We need something to blow on the windscreen, so if we take that blower out, we need to put something else back to do that task. There are tricks and tips to overcome this (in case they spot it all all), but easier is that it is in place.
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dr914@autoatlanta.com |
Aug 3 2020, 08:12 AM
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#4
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914 Guru Group: Members Posts: 7,890 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
it is to supplement the heat volume blown into the cabin on the 914-4 especially at idle.
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 |
BeatNavy |
Aug 3 2020, 08:22 AM
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#5
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Certified Professional Scapegoat Group: Members Posts: 2,924 Joined: 26-February 14 From: Easton, MD Member No.: 17,042 Region Association: MidAtlantic Region |
I took mine out a long time ago. I get plenty of heat / defrost downshifting, and it helps "unclutter" the engine bay. Plus, they're actually pretty anemic.
You can also cover the J-Tubes with 1 1/2 inch rubber hose caps like you find at your big box hardware store so heat doesn't leak into engine bay. |
theer |
Aug 3 2020, 08:23 AM
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#6
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Senior Member Group: Members Posts: 677 Joined: 31-July 15 From: Dover, MA Member No.: 19,014 Region Association: North East States |
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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. |
surfdogskier |
Aug 4 2020, 05:57 AM
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#7
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Member Group: Members Posts: 164 Joined: 20-May 16 From: East TN Member No.: 20,019 Region Association: None |
Thanks guys! That gives me options to play with.
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IronHillRestorations |
Aug 4 2020, 06:05 AM
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#8
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I. I. R. C. Group: Members Posts: 6,726 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None |
It's most useful at low rpm's in cool or cool/damp weather. 6's didn't have one. If your heat exchangers are in good shape and you keep your engine speed above 3k you don't need it and will have plenty of heat.
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Olympic 914 |
Aug 4 2020, 07:37 AM
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#9
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Group: Members Posts: 1,674 Joined: 7-July 11 From: Pittsburgh PA Member No.: 13,287 Region Association: North East States |
(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. |
ClayPerrine |
Aug 4 2020, 07:39 AM
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#10
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Life's been good to me so far..... Group: Admin Posts: 15,508 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
It's most useful at low rpm's in cool or cool/damp weather. 6's didn't have one. If your heat exchangers are in good shape and you keep your engine speed above 3k you don't need it and will have plenty of heat. Yea, the six didn't have one. So, to get hot air into the cabin, you just drive it a gear lower! (IMG:style_emoticons/default/biggrin.gif) |
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