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Registered
Join Date: Dec 2007
Posts: 49
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Tach problem
Hi
I have probably destroyed my tach on 72 911. I connected it to coil signal (wire comes from CDI to coil) it was working nice for few seconds, but then started go banana. After that when i connected it to where it should be (distributor signal ,wire going to CDI) nothing happens. Have i destroyed it? and is there a fix or im a looking to buy a new tach.? Thank you |
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07-31-2008, 11:03 PM
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Moderator
Join Date: Dec 2001
Posts: 9,569
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Yes, you have probably blown the input resistors by connecting it to the 460V output of the CDI rather than the 12v input from the points.
__________________
'66 911 #304065 Irischgruen ‘96 993 Carrera 2 Polarsilber '81 R65 Ex-'71 911 PCA C-Stock Club Racer #806 (Sold 5/15/13) Ex-'88 Carrera (Sold 3/29/02) Ex-'91 Carrera 2 Cabriolet (Sold 8/20/04) Ex-'89 944 Turbo S (Sold 8/21/20) |
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08-01-2008, 05:34 AM
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RS 73
Join Date: Jul 2008
Location: Santa Monica Mountains
Posts: 161
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Sounds like you will need North Hollywood Speedometer. they have always done a good job for me, and I feel their prices are very reasonable.
Dick Lague --------------------- |
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08-01-2008, 05:48 AM
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