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VWBusMan1
Samba Member
Joined: December 30, 2003
Posts: 333
Location: Your Nation's Capital
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 Posted: Thu Apr 22, 2004 8:23 am Post subject: Tachy install... |
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Am just returning to VW dubs after a 20 year hiatus. How does one install an electronic tachometer to VWee without running a wire all the way to the back? Have a 79 westy and too many wires under the dash to figure out which one up front might give me a signal. I know this is probably a really stupid question yet when I search for a thread I get hundreds of hits.
Thanks much, Mark |
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Grvlguy
Samba Member
Joined: January 26, 2003
Posts: 58
Location: Nashville
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| Posted: Thu Apr 22, 2004 11:49 am Post subject: |
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I have never found one. Always had to run a wire to the rear.
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Ragman
The Sambinator
Joined: July 18, 2003
Posts: 3518
Location: Denver
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| Posted: Fri Apr 23, 2004 6:41 am Post subject: |
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Yeap, must run a wire. I suggest getting a strip of 4 wires together from a car supply store for a trailer harness. They usually have a roll of it, and they'll charge you by the foot.
Then, wire that 4 wire pack back to the engine compartment. Now, you'll all the wires you'll need to run: tach, oil temp, oil pressure, plus one more gauge. |
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breadloafdeluxe
Samba Member
Joined: February 12, 2002
Posts: 418
Location: Birthplace o Tx. Brazoria Co.
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| Posted: Sat Apr 24, 2004 11:33 am Post subject: |
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My question is in the same line, in my 71 type2 I changed out the guages for a set from a 72/914.All the guages work fine with all the bells and whistles working as they should, then after a time 1yr or there bouts the tach needle started bouncing around when I go through the gears, though nice and steady at idle. Went to the VDO site tech support and did the in line 1N4005 Diode thing and that made it worse. Checked the connects,wires guage to coil looks good w/ direct switched 12v from fuse holder and private ground. Will settle down after driving for a time. Help anyone? Regards,David K,69S/Cab 71Deluxe, 03Passat sportwagon http://thesamba.com/vw/forum/album_page.php?pic_id=29325
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Ragman
The Sambinator
Joined: July 18, 2003
Posts: 3518
Location: Denver
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| Posted: Mon Apr 26, 2004 5:55 pm Post subject: |
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| breadloafdeluxe wrote: |
| My question is in the same line, in my 71 type2 I changed out the guages for a set from a 72/914.All the guages work fine with all the bells and whistles working as they should, then after a time 1yr or there bouts the tach needle started bouncing around when I go through the gears, though nice and steady at idle. Went to the VDO site tech support and did the in line 1N4005 Diode thing and that made it worse. Checked the connects,wires guage to coil looks good w/ direct switched 12v from fuse holder and private ground. Will settle down after driving for a time. Help anyone? Regards,David K,69S/Cab 71Deluxe, 03Passat sportwagon http://thesamba.com/vw/forum/album_page.php?pic_id=29325 |
I don't know what would cause that, but my guess is either the coil or the tach itself. I would try to test those two items, and go from there. |
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isenegger
Samba Member
Joined: April 26, 2009
Posts: 13
Location: victoria, tx
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| Posted: Sun Apr 26, 2009 6:59 pm Post subject: |
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| where would i tap in on my 73 for the tach at the engine? |
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69 Jim
Samba Member
Joined: September 27, 2004
Posts: 6264
Location: Chickengeorge's Neighbor
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| Posted: Sun Apr 26, 2009 9:03 pm Post subject: |
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| isenegger wrote: |
| where would i tap in on my 73 for the tach at the engine? |
Negative side of the coil. Same side as the points connect to. |
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