 old school 'autocool' pics, for tat2dphreak & critics alike |
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| root |
 Apr 27 2005, 07:57 AM
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#1
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Two Wheeled Type4 Completed!  Group: Members Posts: 849 Joined: 5-May 04 From: Sterling, VA Member No.: 2,026 Region Association: None  |
Here's pix I took last night of the ACS, classic german enginutty! (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)
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Replies(1 - 19)
| root |
Apr 27 2005, 07:58 AM
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#2
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Two Wheeled Type4 Completed! Group: Members Posts: 849 Joined: 5-May 04 From: Sterling, VA Member No.: 2,026 Region Association: None |
2nd
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| root |
Apr 27 2005, 07:58 AM
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#3
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Two Wheeled Type4 Completed! Group: Members Posts: 849 Joined: 5-May 04 From: Sterling, VA Member No.: 2,026 Region Association: None |
3rd
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| root |
Apr 27 2005, 07:58 AM
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#4
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Two Wheeled Type4 Completed! Group: Members Posts: 849 Joined: 5-May 04 From: Sterling, VA Member No.: 2,026 Region Association: None |
4th
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| ArtechnikA |
Apr 27 2005, 08:07 AM
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#5
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
and don't forget that one of those holes - i can't recall if it's the bellows bracket or the pulley - is a *through hole* into the case.
if you remove those parts and don't replace the mounting bolts, you'll have a lovely oil leak... |
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| tat2dphreak |
Apr 27 2005, 08:22 AM
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#6
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stoya, stoya, stoya Group: Benefactors Posts: 8,797 Joined: 6-June 03 From: Wylie, TX Member No.: 792 Region Association: Southwest Region  |
thanks for posting this root... it really helps to see what I'm missing:
yea, my engine has the pulley for the thermostat, but no thermostat, and I;ve never seen those flappers before, they just flat weren't on either 914 I've had (IMG:http://www.914world.com/bbs2/html/emoticons/headbang.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif) Rich, the bolts are there I think, there's no leak. it looks to me like I need to get the whole thing... but I may "rig" something on the 3-4 side first, until I can pull the engine and the tin to install all of this... correct me if I am wrong, but it looks like the 1-2 side would just not warm as fast(may cause a little extra wear) BUT if the 3-4 side doesn't have the flapper the air never gets to those cylinders... causing it to warm up faster, but get hotter than normal! (IMG:http://www.914world.com/bbs2/html/emoticons/ohmy.gif) any idea WHY someone in Houston would have taken this stuff off?! from what I understand he was a porsche guy and knew these cars well... I bought the car from a friend who bought it from him... my friend never drove it(duh) and only owned it a few days... |
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| URY914 |
Apr 27 2005, 08:24 AM
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#7
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I built the lightest 914 in the history of mankind. Group: Members Posts: 123,919 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
I think it is the pulley hole. Ask me how I know. (IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif) Paul |
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| root |
Apr 27 2005, 08:29 AM
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#8
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Two Wheeled Type4 Completed! Group: Members Posts: 849 Joined: 5-May 04 From: Sterling, VA Member No.: 2,026 Region Association: None |
(IMG:http://www.914world.com/bbs2/html/emoticons/cool_shades.gif) |
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| tat2dphreak |
Apr 27 2005, 08:31 AM
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#9
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stoya, stoya, stoya Group: Benefactors Posts: 8,797 Joined: 6-June 03 From: Wylie, TX Member No.: 792 Region Association: Southwest Region |
probably why the pulley is there and nothing else... (IMG:http://www.914world.com/bbs2/html/emoticons/dry.gif) |
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| Gint |
Apr 27 2005, 09:20 AM
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Mike Ginter Group: Admin Posts: 16,094 Joined: 26-December 02 From: Denver CO. Member No.: 20 Region Association: Rocky Mountains |
Somebody PM me when this thread plays out and I'll put it in the Classics forum.
Nice work. |
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| URY914 |
Apr 27 2005, 09:27 AM
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#11
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I built the lightest 914 in the history of mankind. Group: Members Posts: 123,919 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
Is it really magnesium?
I just thought it was just cast aluminum. Paul |
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| root |
Apr 27 2005, 11:14 AM
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#12
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Two Wheeled Type4 Completed! Group: Members Posts: 849 Joined: 5-May 04 From: Sterling, VA Member No.: 2,026 Region Association: None |
An old Porsche mechanic told me that it was Mg, (he's actually older than me)!
Does anybody know for sure? (IMG:http://www.914world.com/bbs2/html/emoticons/idea.gif) |
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| Aaron Cox |
Apr 27 2005, 11:16 AM
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#13
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
does it light on fire? are you unable to put it put with water? if so- its magnesium... (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) |
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| ArtechnikA |
Apr 27 2005, 11:19 AM
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#14
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
it acts and feels like a magnesium alloy; certainly it's weak and brittle enough.
aluminum will burn too, in the right circumstances - check out Thermite... |
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| Borderline |
Apr 27 2005, 11:28 AM
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#15
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Senior Member Group: Members Posts: 720 Joined: 8-February 05 From: San Juan Bautista, CA Member No.: 3,577 Region Association: Northern California |
I have a question..... in the photos the lower right had side (bottom passenger side) there is a port for air to exit the housing. On my 72 1.7 it seems to be joining the heating system. What's going on??? Why would cooling air be diverted from the engine to be sent to the passenger compartment. And more importantly, if I block it off will the engine run cooler?? (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif)
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| mudfoot76 |
Apr 27 2005, 11:41 AM
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#16
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Currently teenerless :-( Group: Members Posts: 946 Joined: 18-March 04 From: Carmel, IN Member No.: 1,814 Region Association: None |
Never underestimate the capacity for a DAPO to do things that leave you pondering just how much of a DA the PO actually was (IMG:http://www.914world.com/bbs2/html/emoticons/dry.gif) |
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| Reiche |
Apr 27 2005, 12:18 PM
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#17
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Member Group: Members Posts: 169 Joined: 13-October 04 From: Vista, CA Member No.: 2,934 |
There are outlets for heater connections on both sides. Engine air is always being pushed through the heat exchangers, but it only reaches the passenger compartment when the heater control lever is pulled up. Otherwise it gets dumped out the flapper boxes under the car. Unless you have an auxiliary heater fan, that's the only way heated air gets to you. Jake Raby sez blocking the outlets makes cooling worse. Apparently he tested this while working on his DTM. My wild guess as to why: All the auxiliary air take-offs from the plenum come from the 3&4 side (pass. on 914): alternator, oil cooler, and heat exchangers (see the j-shaped outlet on the left by the alternator bracket, and the hole just above it for the alt. air) The diverter tins, air plenum and cooling system volumes are tuned for this airflow. If you block off the outlets, you increase the pressure inside that half of the system past what is was designed for, the air mass stagnates and doesn't move through the heads/cylinders the way it's supposed to. Again, this is all happening on the 3&4 side, which already cools worse than the 1&2 side. So messing with these makes the temp differential side-to-side even more pronounced. |
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| tat2dphreak |
Apr 27 2005, 12:27 PM
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#18
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stoya, stoya, stoya Group: Benefactors Posts: 8,797 Joined: 6-June 03 From: Wylie, TX Member No.: 792 Region Association: Southwest Region |
one more thing... why are the thermostats NLA?! it *LOOKS* similar to a beetle stat, can they be interchanged? (IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif)
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| Dave_Darling |
Apr 27 2005, 12:43 PM
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#19
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914 Idiot Group: Members Posts: 15,059 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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'Cuz ever'body knows them flaps just gits in the way! We alluz pull 'em--an' if the motor runs so hot without the flaps, it must'a bin runnin' even hotter with 'em!! (IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/screwy.gif) --DD |
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| ThinAir |
Apr 27 2005, 01:58 PM
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#20
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Best friends Group: Members Posts: 2,553 Joined: 4-February 03 From: Flagstaff, AZ Member No.: 231 Region Association: Southwest Region
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The purpose of the flaps is to help the engine warm up and to maintain proper temperature. They are built so that if the thermostat cable breaks they will go to the wide open position so that you don't overheat the engine. I think this is what has lead some folks to think that it is ok to remove these flaps. They can't imagine a situation where an air-cooled engine could be running too cool. I live at 7,000 feet so cool mornings are a reality for me, but more important - I think the engineers at VW/Porsche actually had a clue when they designed this stuff. It may be a crude way of maintaining engine temps compared to today's water cooled/electronic beasts, but it does the job at some level. I ALWAYS make sure the flaps are in place and that the system is working properly. |
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