Reply
 
Thread Tools Display Modes
  #1  
Old 08-09-2013, 10:31 AM
KenD's Avatar
KenD KenD is offline
Senior Member
 
Join Date: Dec 2009
Location: Winnipeg, Canada
Posts: 125
Default Hood Tach issues

1970 hood tach has needle sticking at around 4000 rpm's. After car runs 20 minutes or so, it relaxes and reads properly. Occasionally is reads 0 at engine warming up. Is there a remedy or is a inside part replacement all that can be done. The shell is painted. Very rarely exterior has gotten wet. Thanks, Ken

  #2  
Old 08-10-2013, 11:58 PM
John Haley's Avatar
John Haley John Haley is offline
Senior Chief
 
Join Date: Mar 2005
Location: Minnesota
Posts: 374
Default

The back of the needle moves between two magnets, Dust and paint chips falling off the inside of the housing sometimes get in between the magnets and hangs up the needle. You would need to remove the top and remove the meter movement and face from the base to be able to see into the area of the meter movement were the junk may be. Carefully remove the dust and paint chips.

  #3  
Old 08-11-2013, 05:47 PM
KenD's Avatar
KenD KenD is offline
Senior Member
 
Join Date: Dec 2009
Location: Winnipeg, Canada
Posts: 125
Default

Thank you John. Will attempt this week..

Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 02:55 PM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017