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fungi
Samba Member
Joined: August 29, 2002
Posts: 105
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 Posted: Tue Oct 22, 2002 6:27 pm Post subject: timing - tach hookup |
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I have a tach/dwellmeter. I have been hooking it up to my coil (-) form dist and a ground. I get 900 rpm on an 8cyl scale isn't it supposed to be 450 on an *cyl scale. any way that would mean my car is ideling at 1800 rpm and i'm sure it's not. SO am I hooking my tach up wrong.
Thanks Paul... |
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TimGud
Samba Member
Joined: March 03, 2002
Posts: 6459
Location: Rio Rico Arizona
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| Posted: Wed Oct 23, 2002 7:07 am Post subject: timing - tach hookup |
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| On the dwell meter I have,the red goes to a positive, the black wire goes to ground, and the green lead goes to the - side of the coil.Good luck |
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[email protected]
Samba Member
Joined: October 28, 2002
Posts: 86
Location: Ashburn, VA
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| Posted: Mon Oct 28, 2002 4:38 pm Post subject: timing - tach hookup |
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| I get the same results, just added a VDO to my '76. While driving the rev needle seems to doubled and jumpy after 4k, shift levels at 6k, I know its not at redline, based on an idle of around 1200 rpm. Does anyone know what the typical redline level is (for the needle stop)? |
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Amskeptic
Samba Member
Joined: October 18, 2002
Posts: 8586
Location: All Across The Country
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| Posted: Sun Nov 03, 2002 1:01 am Post subject: timing - tach hookup |
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Your ear should be your initial guide.
Normal engine idle is 900 warm
( 450 v-8 scale). Rev limiter on distributor rotor is calibrated for 5,400.
The 76 should be at 3,200 at around 55.
Misbehavior of your tach or dwell meter is usually a wiring problem or extremely lousy points/condensor/distributor bushings, but you would have a lousy-running car, too.
Colin |
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