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12-28-2007
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#1 (permalink) |
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gone Opel GT crazy!
Join Date: Nov 2006
Location: Lincoln Alabama
Posts: 756
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Unanswered: tachometer questions.
i'm guessing it's a electrical tach but where do the wires go to make it start working? i have pics here http://www.opelgt.com/photos/showpho...2/ppuser/21743 what does the green wire do? http://www.opelgt.com/photos/showpho...1/ppuser/21743 http://www.opelgt.com/photos/showpho...0/ppuser/21743 what does this smaller green wire do?
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Rex {Elda} "code green"1969 Opel GT 4 speed,Weber carb,Pertronix electronic ignition. 1972 parts car auto-RIP 1972 parts car -Rip {saphire}-1993 yellow nissan pick up 5 speed! 1993 red nissan pickup automadic (unamed for now) {Alexia}-1989 chevy camero {Elliott}-1978 Pontiac Firebird -1989 Ford probe(unamed for now) 17 years old -6 vehicles... and still moveing on  WATCH OUT,I'M A OLD CAR FANATIC!!!  Future wanna be concept and custom car designer/builder. |
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12-28-2007
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#2 (permalink) |
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Senior Contributor
Join Date: Oct 2002
Location: Kent Lakes, NY
Posts: 1,969
Real Name: Jeff
Provided Answers: 8
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http://www.opelgt.com/photos/data/52..._Schematic.pdf
Try this link, it should take you to a color schematic that I posted for a '73
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Jeff '73 GT,5spd,Recaro,EDIS4 2.2 EFI by MegaSquirt, Ali Flywheel w/S10 Clutch, Electric Fan, Roller Rockers, Venolia Pistons, 6 Cyl Intake w/ Custom Injection, 15" Wheels,Lecarra,F&R Sway Bars,Custom Exhaust,1" Sport Spring,Koni Reds,Big Brakes,3 Core Ali Radiator,Hse of Colors Kandy Pagan Gold. 123 WHP @ 6800 RPM '64 VW Karmann Ghia '08 BMW M3 |
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12-28-2007
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#3 (permalink) |
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6,000 Post Club
Join Date: Aug 2002
Location: Imperial Beach, CA South of San Diego
Posts: 6,054
Provided Answers: 6
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According to my DESTEC schematic, there are three male spade lug connections. Two close to each other and one by itself. The one by itself is a Red/Black wire that powers the tach and comes from the positive terminal block between the speedo and ammeter/oil gauge. The center wire is the Green one that goes to the coil negative side via the Green IP connector Pin #3. The last one is a ground Brown wire that connects to the ground lugs on the back of the speedo. HTH.
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Ron 72 GT 3.4L V-6/T-5/ZF posi - almost done - Just need AC installed. 75 Chevy monza 5.7L/TH350/Auburn 3.08 posi - Next |
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12-28-2007
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#4 (permalink) |
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gone Opel GT crazy!
Join Date: Nov 2006
Location: Lincoln Alabama
Posts: 756
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thanks guys, i'll see if i can get it working
__________________
Rex {Elda} "code green"1969 Opel GT 4 speed,Weber carb,Pertronix electronic ignition. 1972 parts car auto-RIP 1972 parts car -Rip {saphire}-1993 yellow nissan pick up 5 speed! 1993 red nissan pickup automadic (unamed for now) {Alexia}-1989 chevy camero {Elliott}-1978 Pontiac Firebird -1989 Ford probe(unamed for now) 17 years old -6 vehicles... and still moveing on WATCH OUT,I'M A OLD CAR FANATIC!!! Future wanna be concept and custom car designer/builder. |
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04-07-2008
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#5 (permalink) |
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Member
Join Date: May 2004
Location: New Jersey
Posts: 692
Provided Answers: 1
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Adjusting tachometer
Is there anyway to adjust the teachometer-zero it out, I'm running at 1800 rpms with the engine off!!!
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Dave 73 Opel GT-work in progress 74 Manta 75 Manta Previous 72 Manta Rallye-owned 1974-1979 |
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04-07-2008
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#6 (permalink) | |
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6,000 Post Club
Join Date: Aug 2002
Location: Imperial Beach, CA South of San Diego
Posts: 6,054
Provided Answers: 6
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__________________
Ron 72 GT 3.4L V-6/T-5/ZF posi - almost done - Just need AC installed. 75 Chevy monza 5.7L/TH350/Auburn 3.08 posi - Next |
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'73 Gold GT
Linear Mode
