| [ Total Views: 1075 | Total Replies: 3 | Thread Id: 109646 ] |
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 jakeandco1958
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| posted on August 16th, 2015 at 08:49 AM |
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Tacho needle bounce 1971 beetle
I've just fitted a Saas 52mm Tacho which works but needle bounces all over the place. Have tried the following. Made sure it was connected to
negative side of coil, fitted a resistor between coil and gauge, checked and changed earth wire, setting on rear is set right. 4 6 8 Other
suggestion is fitting a diode. Any ideas?
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shokwave2
A.k.a.: Matt Hamilton
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| posted on August 16th, 2015 at 04:06 PM |
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You'll need to install a diode between coil and gauge. I had the same problem.
http://www.thesamba.com/vw/forum/viewtopic.php?t=566900&highlight=diode
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psimitar
Son of Jim - Creator of Good
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| posted on August 16th, 2015 at 11:40 PM |
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Yea the diode is needed to allow residual current freewheel to earth 
madness is in the eye of the beholder  |
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jakeandco1958
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| posted on August 17th, 2015 at 12:44 PM |
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thanks. worked a treat. soldered a diode in and now tach works well. cheers
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