The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

bouncing tach redux 200

posted by  vrollvo on  Sun Aug 24 10:09 CST 2008
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Wed Oct 22 04:13 CST 2014
[RELATED]

As many, (88-240-47), I continue musing over the bouncing tach phenomenon. Much of what I have done, following suggestions in FAQ, has been somewhat helpful. Now, however, I'm going in one last time, after noticing that bumps even pounding on dash seem to trigger it.

Conclusion, time to dedicate a ground wire from the tach to a clean ground or the battery, and dedicate a trigger wire, thus bypassing the several mechanical connections, between the tach and the coil. No?

Will this ground the entire instrument cluster? Is this a redunancy that can "over ground" the panel or the tach? Second, the negative post for the tach, looking from the back, is the upper righthand post?

I've performed this kind of dedicated grounding on my older motorcycle (the diode board) back to the battery with astonishing results to the charging system.






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.