|
|
Joined: Mar 2009
Posts: 19
Member
|
|
Member
Joined: Mar 2009
Posts: 19 |
Hi!
Working on a '68 Firebird with a 400 HO motor. When we got it the clutch spring components were rusted away. Ordered the replacement parts. Not sure how it goes together. No diagram with the parts. Did find one diagram but it's not too clear. Can anyone point me toward a better one or how to hitch this up?
|
|
|
|
|
Joined: Feb 2002
Posts: 2,726
Senior Member
|
|
Senior Member
Joined: Feb 2002
Posts: 2,726 |
This is in the 1968 service manual:
|
|
|
|
|
Joined: Mar 2009
Posts: 19
Member
|
|
Member
Joined: Mar 2009
Posts: 19 |
Thanks a bunch! That helps a lot
|
|
|
|
|
Joined: Jan 2010
Posts: 2,405 Likes: 1
Member
|
|
Member
Joined: Jan 2010
Posts: 2,405 Likes: 1 |
what part of the frame or engine does the front of the spring attach to?
|
|
|
|
|
Joined: Feb 2002
Posts: 2,726
Senior Member
|
|
Senior Member
Joined: Feb 2002
Posts: 2,726 |
If I remember right, to a bracket on the subframe. I can go take a peek at mine.
|
|
|
|
|
Joined: Apr 2010
Posts: 6,758
FGF Premium Member
|
|
FGF Premium Member
Joined: Apr 2010
Posts: 6,758 |
It attaches to the clutch fork. You will see a small hole in the fork at the end.
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: Jan 2010
Posts: 2,405 Likes: 1
Member
|
|
Member
Joined: Jan 2010
Posts: 2,405 Likes: 1 |
One end in the fork the other end.....?
Al
|
|
|
|
|
Joined: Apr 2010
Posts: 6,758
FGF Premium Member
|
|
FGF Premium Member
Joined: Apr 2010
Posts: 6,758 |
|
|
|
|
|
Joined: Feb 2002
Posts: 2,726
Senior Member
|
|
Senior Member
Joined: Feb 2002
Posts: 2,726 |
That spring attachment just prevents the assembly from rattling when the clutch is engaged. The return spring attachment is what he needs. On my GTO it's to a frame-mounted bracket. I can't get under my OHC car to see where it's attached, though I thought it was attached to a bracket on the subframe. For a V-8 car, it might be attached to the front starter support.
|
|
|
|
|
Joined: Apr 2010
Posts: 6,758
FGF Premium Member
|
|
FGF Premium Member
Joined: Apr 2010
Posts: 6,758 |
Your diagram is for a OHC 6. The smaller diagram shows the 8 cyl. This exactly how I found it off a 69 FB. The "return spring" to put the clutch back in neutral position is supplied by the pressure plate via the fork. Another spring to the frame would be weaker and redundant.
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: Feb 2002
Posts: 2,726
Senior Member
|
|
Senior Member
Joined: Feb 2002
Posts: 2,726 |
This is the view I am used to on my GTO. Note that the anti-rattle spring is labeled (incorrectly) as the return spring. As you can see, it would not return anything. The return spring is the one located on the frame bracket to the left arm of the counter-shaft.
|
|
|
|
|
Joined: Feb 2002
Posts: 2,726
Senior Member
|
|
Senior Member
Joined: Feb 2002
Posts: 2,726 |
And this is the big-car set-up, which looks more like the Firebird's type than the GTO. Same problem with the labeling of the anti-rattle spring:
|
|
|
|
|
Joined: Feb 2002
Posts: 2,726
Senior Member
|
|
Senior Member
Joined: Feb 2002
Posts: 2,726 |
Your diagram is for a OHC 6. The smaller diagram shows the 8 cyl. This exactly how I found it off a 69 FB. The "return spring" to put the clutch back in neutral position is supplied by the pressure plate via the fork. Another spring to the frame would be weaker and redundant. That's actually the correct way to wear out the throw-out bearing.
|
|
|
|
|
Joined: Apr 2010
Posts: 6,758
FGF Premium Member
|
|
FGF Premium Member
Joined: Apr 2010
Posts: 6,758 |
I stand corrected... I found a diagram on YearOne catalog. It shows the setup for 67-69 & 70+. It looks like a have a frankinstien 67-69/70 setup. There is a bracket that mounts on the frame for a spring.  
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: Jul 2009
Posts: 165
Member
|
|
Member
Joined: Jul 2009
Posts: 165 |
classic industries has that frame bracket for $17
|
|
|
|
|
Joined: Mar 2004
Posts: 11,905
Valued Mentor
|
|
Valued Mentor
Joined: Mar 2004
Posts: 11,905 |
|
|
|
|
Forums57
Topics35,534
Posts298,850
Members8,861
| |
Most Online19,810
Feb 1st, 2026
|
|
|
0 members (),
2,110
guests, and
46
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
There are no members with birthdays on this day. |
|
|
|
