tach i need help
Race Director
Joined: Sep 2002
Posts: 10,362
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From: San Diego - Deep Within The State of CONFUSION!
Pro
Joined: Jul 2004
Posts: 605
Likes: 0
From: Alta Loma CA
Those tachs will sit at the RPM where you shut the car off. Don't expect it to go to zero. If it functions fine while running than it's OK. Now if never goes below 20 than there is definetly something wrong.
Instructor
Joined: Aug 2005
Posts: 157
Likes: 0
did you buy it from ebay
that alone could be the problem
seriously, They are calibrated for all apps.
it sounds like yours is just defective
all that i have driven go up to 15 after you turn the eng off
they go back to idle when you start you car
that alone could be the problem
seriously, They are calibrated for all apps.
it sounds like yours is just defective
all that i have driven go up to 15 after you turn the eng off
they go back to idle when you start you car
Pro
Joined: May 2004
Posts: 702
Likes: 1
From: Sealy TX
St. Jude Donor 06-'07
Mine came with instructions on how the do it, I don't remember all of it, but basically you remove the needle (carefully), supply + and - to the tach, then put the needle back on at zero.
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Pro
Joined: May 2004
Posts: 702
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From: Sealy TX
St. Jude Donor 06-'07