 worked on the Sporto today - with success, thanks to Andy for his input |
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| Gustl |
  Jul 27 2008, 09:38 AM
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#1
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914 enthusiast & historian  Group: Members Posts: 11,499 Joined: 16-June 04 From: TIROL / Austria Member No.: 2,212 Region Association: Austria   |
Today my plan was to find out more about my shifting problems. Therefor I decided to substitute the shiftstick-microswitch with a manual operated switch, to see if this would solvve the problem.
As it turned out, I was really not well prepared ... I had hardly anything useful at home to do this work. So I had to improvize a little. I took an old spotlight that I didn't use for at least 8 years or so and checked if it still worked fine - and it did. So I dismounted the switch to use it as a microswitch substitut.   Because I had no wires at home, I had to cut out a little less that 2 feet of the speaker wires of my stereo (IMG:style_emoticons/default/blink.gif)  When I started to lift the shift boot I saw that anybody already worked on this problem. The wires were already cut and clamped together. That's nice - so I didn't need to disturb original material (IMG:style_emoticons/default/biggrin.gif)   I took my DMM to check if the microswitch could be the problem and it turned out that it didn't switch in the way it should. This is s very tricky thing - at least for me.  |
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| Gustl |
Jul 27 2008, 09:46 AM
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#2
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914 enthusiast & historian Group: Members Posts: 11,499 Joined: 16-June 04 From: TIROL / Austria Member No.: 2,212 Region Association: Austria |
So I started to connect the wires with my substitut and placed the cable around the ash tray so that the switch is in a good position.
 Then I started the engine and started my tests. Switch on - carefully trying to shift - it worked well (IMG:style_emoticons/default/smilie_pokal.gif) I tried to shift through all gears, including the rear - everything worked fine (IMG:style_emoticons/default/mueba.gif) (IMG:style_emoticons/default/mueba.gif) (IMG:style_emoticons/default/mueba.gif) Due to the weather condition I only could test it inside the garage, but it shifted without any problem. When the weather gets better I will see if I could find somebody who comes with me to a test drive, so that we could test it "in action". I can't do this alone, because I need both hands to shift. Maybe I will improove this solution with another switch (push button) so that I could shift with only one hand. (IMG:style_emoticons/default/driving.gif) Gustl |
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| hcdmueller |
Jul 27 2008, 09:54 AM
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#3
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????????????? Group: Members Posts: 542 Joined: 4-February 06 From: UK Member No.: 5,527 Region Association: England 
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That is great to see. I hope the micro switch is an easy to get part. Who knows, it may even be a VW beetle part.
BTW I like your use of the speaker wire. I had to cut apart a lamp cord a couple weeks ago. |
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| BarberDave |
Jul 27 2008, 12:02 PM
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#4
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Barberdave Group: Members Posts: 1,605 Joined: 12-January 03 From: Wauseon Ohio Member No.: 135 Region Association: Upper MidWest |
(IMG:style_emoticons/default/smilie_pokal.gif)
Gust & Hcdmueller, You both have just regressed 2 steps in the 914, 12 step program! Dave (IMG:style_emoticons/default/slap.gif) |
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| SirAndy |
Jul 27 2008, 03:29 PM
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#5
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Resident German Group: Admin Posts: 41,625 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(Gustl @ Jul 27 2008, 07:38 AM)  worked on the Sporto today - with success, thanks to Andy for his input glad i could help! (IMG:style_emoticons/default/biggrin.gif) there's a good possibility that the microswitch from a VW bug sporto is similar enough to work. i'm not sure if the 914 switch is still available from porsche, but the VW switch should not be difficult to get ... (IMG:style_emoticons/default/smash.gif) Andy |
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| Gustl |
Jul 27 2008, 04:03 PM
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#6
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914 enthusiast & historian Group: Members Posts: 11,499 Joined: 16-June 04 From: TIROL / Austria Member No.: 2,212 Region Association: Austria |
after studying my "Driving a Sportomatic" brochure and the factory maintainance books today I found out that there might be some wrong adjustments at the switch
I will try to do this next - if it doesn't help I'll check for a new part (IMG:style_emoticons/default/bye1.gif) Gustl |
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| johannes |
Jul 28 2008, 02:00 AM
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#7
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Club Porsche 914 France President Group: Members Posts: 3,084 Joined: 13-January 06 From: France Member No.: 5,409 Region Association: France |
I got the information from the french Sporto owner that there is a screw somewere that allows you ajust the time the clutch opens and closes. It seems that most issues can be solved by ajusting this screw.
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| Gustl |
Jul 28 2008, 02:41 PM
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#8
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914 enthusiast & historian Group: Members Posts: 11,499 Joined: 16-June 04 From: TIROL / Austria Member No.: 2,212 Region Association: Austria |
I'm just back from the car now.
Today I figured out what the actual problem is in detail. There are two spring connectors, one before and one behind the shiftstick. If you move the shiftstick forward, to shift in "L" or "3", the rear spring connector should close the switch. If you move the shiftstick back, to shift in "R", "D" or "4", the spring connector in front should close the switch. The front spring connector works fine. I also found the screw (Johannes mentioned it - thanks (IMG:style_emoticons/default/pray.gif) ) which can give some pre-tention on the spring connector to change the gap (to control how sensitiv it is). But for any reason, the rear spring connector doesn't work propper. The screw for pre-tention doesn't change anything, the switch is always open. Maybe I will try to bend the spring connector a little bit within the next couple of days. With a little luck it will work then. But no big problem - since I have the manual switch installed I could drive anyway (if the weather would be fine (IMG:style_emoticons/default/dry.gif) ) But it turned out that it's no fun for a big guy like me to work in such a small place ... (IMG:style_emoticons/default/laugh.gif) Gustl |
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| McMark |
Jul 28 2008, 03:08 PM
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#9
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
That's really cool. Early VWs and Mustangs (and more) have a foot operated high/low headlight switch on the floor (you step on it). If you can source one on those it would make testing easier. (IMG:style_emoticons/default/wink.gif)
Keep us posted. |
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| messix |
Jul 28 2008, 03:27 PM
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#10
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AKA "CLUTCH KILLER"! Group: Members Posts: 6,995 Joined: 14-April 05 From: between shit kickers and pinky lifters/ puget sound wa.north of Seattle south of Canada Member No.: 3,931 Region Association: Pacific Northwest |
get one of these with the switch http://www.jegs.com/p/Hurst/745795/10002/-1/10521
or make some thing like it with a momentary switch from your local electrical supply store. |
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| Elliot Cannon |
Jul 28 2008, 03:36 PM
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#11
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914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None
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Could you somehow tape the switch to the shift lever?? (IMG:style_emoticons/default/confused24.gif) Would you be able to shift with one hand then? (IMG:style_emoticons/default/idea.gif)
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| markb |
Jul 28 2008, 03:58 PM
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#12
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914less :( Group: Members Posts: 5,449 Joined: 22-January 03 From: Nipomo, CA Member No.: 180 Region Association: Central California
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QUOTE(Elliot Cannon @ Jul 28 2008, 01:36 PM) Could you somehow tape the switch to the shift lever?? (IMG:style_emoticons/default/confused24.gif) Would you be able to shift with one hand then? (IMG:style_emoticons/default/idea.gif) (IMG:style_emoticons/default/agree.gif) |
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| Gustl |
Jul 28 2008, 04:12 PM
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#13
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914 enthusiast & historian Group: Members Posts: 11,499 Joined: 16-June 04 From: TIROL / Austria Member No.: 2,212 Region Association: Austria |
@ McMark - I do know these foot operated headlights, but I won't do something like this - I want to make the original thing work ... or, in worst case, replace it with an original part
@ Troy - same here ... I absolutely want an original solution ... @ Elliot - today I removed a push button from an old computer which I wanted to tape to the shift knob, this would be easier than the current light switch solution; but then I thought I should find out more about the strength of the electric current; so I connected my DMM to the circuit, started the engine and and didn't believe what I saw: when the clutch is open there are between 1.5 - 1.8 Ampere flowing (IMG:style_emoticons/default/blink.gif) so I couldn't use the Computer's push button, because it would be toasted with the 1st clutch operation ... I'll see if I could find a better (stronger) push button within the next days - or if I could make the original thing work propper (IMG:style_emoticons/default/bye1.gif) Gustl |
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| Gustl |
Aug 30 2008, 01:51 PM
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#14
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914 enthusiast & historian Group: Members Posts: 11,499 Joined: 16-June 04 From: TIROL / Austria Member No.: 2,212 Region Association: Austria |
Now - after a couple of test drives - I have the final solution, and that's the original solution.
The switch was still available and the Porsche Center Tirol has a very experienced guy, who worked for them for almost 30 years. He changed the part and adjusted it perfectly. Now the system shifts sweet as honey. I can shift through all gears without any problem, no strange noise, just the way it should work. This way the driving is pure fun. (IMG:style_emoticons/default/driving.gif) It even shifts better than my '74 1.8 with sideshifter - and this one is almost perfect. (IMG:style_emoticons/default/rolleyes.gif) I paid a lot of money for this original switch - but it's worth every cent (IMG:style_emoticons/default/smilie_pokal.gif) (IMG:style_emoticons/default/rocking nana.gif) Gustl |
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| hcdmueller |
Aug 30 2008, 02:06 PM
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#15
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????????????? Group: Members Posts: 542 Joined: 4-February 06 From: UK Member No.: 5,527 Region Association: England
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That is great news. Hopefully the weather holds out so you can get a few miles in.
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| SirAndy |
Aug 30 2008, 03:13 PM
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#16
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Resident German Group: Admin Posts: 41,625 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(Gustl @ Aug 30 2008, 11:51 AM) Now the system shifts sweet as honey. (IMG:style_emoticons/default/smilie_pokal.gif) |
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| JeffBowlsby |
Aug 30 2008, 04:14 PM
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#17
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914 Wiring Harnesses Group: Members Posts: 8,492 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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| johannes |
Aug 30 2008, 05:20 PM
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#18
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Club Porsche 914 France President Group: Members Posts: 3,084 Joined: 13-January 06 From: France Member No.: 5,409 Region Association: France |
GREAT ! This experienced guy should have worked on a 914 sporto for the first time in his life ! ...
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| Gustl |
Aug 31 2008, 01:52 AM
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#19
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914 enthusiast & historian Group: Members Posts: 11,499 Joined: 16-June 04 From: TIROL / Austria Member No.: 2,212 Region Association: Austria |
QUOTE(johannes @ Aug 31 2008, 12:20 AM) GREAT ! This experienced guy should have worked on a 914 sporto for the first time in his life ! ... yepp - but he already worked on a 911 Sporto, as he told me |
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| watsonrx13 |
Aug 31 2008, 06:59 AM
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#20
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Advanced Member Group: Members Posts: 2,734 Joined: 18-February 03 From: Plant City, FL Member No.: 312 Region Association: South East States |
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