|
|
|
|
Joined: Nov 2006
Posts: 442
Member
|
|
Member
Joined: Nov 2006
Posts: 442 |
I thought I would try to get a little info before taking apart my tach. I am talking a stock tach. What is involved?
Keith 68 Bird 428 Auto. 
|
|
|
|
|
Joined: Apr 2010
Posts: 6,758
FGF Premium Member
|
|
FGF Premium Member
Joined: Apr 2010
Posts: 6,758 |
It comes apart fairly easily. Couple of screws underneath to open her up. They be covered with silicon or gasket material. Try to save your gasket. Here is my 67 disassembled https://plus.google.com/u/0/photos/105908860112140983297/albums/5952312536472122241
Engine Test Stand Playlist: https://www.youtube.com/playlist?list=PLwoxyUwptUcdqEb-o2ArqyiUaHW0G_C88restoring my 1968 Firebird 400 HO convertible (Firedawg) 1965 Pontiac Catalina Safari Wagon 389 TriPower (Catwagon) 1999 JD AWS LX Lawn tractor 17hp (my daily driver) 2006 Sequoia 2017 Murano (wife's car) 202? Electric car 203? 68 Firebird /w electric engine 2007 Bayliner 175 runabout /w 3.0L Mercuiser__________________________________________________________
|
|
|
|
|
Joined: Nov 2006
Posts: 442
Member
|
|
Member
Joined: Nov 2006
Posts: 442 |
Keith 68 Bird 428 Auto.
|
|
|
|
|
Joined: May 2013
Posts: 148
Member
|
|
Member
Joined: May 2013
Posts: 148 |
FWIW ... a very detailed description of GM Hood Tachs is here.
67 400 4sp Auto Convertible
|
|
|
|
|
Joined: Apr 2010
Posts: 6,758
FGF Premium Member
|
|
FGF Premium Member
Joined: Apr 2010
Posts: 6,758 |
Engine Test Stand Playlist: https://www.youtube.com/playlist?list=PLwoxyUwptUcdqEb-o2ArqyiUaHW0G_C88restoring my 1968 Firebird 400 HO convertible (Firedawg) 1965 Pontiac Catalina Safari Wagon 389 TriPower (Catwagon) 1999 JD AWS LX Lawn tractor 17hp (my daily driver) 2006 Sequoia 2017 Murano (wife's car) 202? Electric car 203? 68 Firebird /w electric engine 2007 Bayliner 175 runabout /w 3.0L Mercuiser__________________________________________________________
|
|
|
|
|
Joined: May 2013
Posts: 148
Member
|
|
Member
Joined: May 2013
Posts: 148 |
The circuit diagram at Figure 8 looks close to the components on the tach board in your photos.
67 400 4sp Auto Convertible
|
|
|
|
|
Joined: Oct 2009
Posts: 1,363
Premium Member
|
|
Premium Member
Joined: Oct 2009
Posts: 1,363 |
Good to know. Other than the meter movement itself, everything else is readily available.
Larry
1967 Sprint Convertible
|
|
|
|
Forums57
Topics35,534
Posts298,850
Members8,861
| |
Most Online19,810
Feb 1st, 2026
|
|
|
0 members (),
964
guests, and
115
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
There are no members with birthdays on this day. |
|
|
|
|
|
