3.2 throttle return spring differences

[ChrisBennet]

Anyone ever notice that some 3.2's motors have one throttle return spring and some have two?
The '85 3.2 motor in the shop is the 2nd motor I've seen that only has one throttle return spring and no evidence of having a hook on the bottom of the manifold for a 2nd spring. The other "monospring" motor was an '89. All the other 3.2's I've seen have two throttle return springs.

-Chris
EDIT: If you car only has 1, could you tell me what year it is?

[Rich76_911s]

Hey Chris,

I think it would help if you posted a picture of the throttle return springs that you are looking at. I had completely the wrong idea of what you were looking at when you first asked me. Maybe with a picture guys will know exactly what you are looking at and will be more able to reply. Just an opinion.

Rich

[Carrera3.5L]

Chris,

No image needed for me but I agree with Rich that a pic would be helpful for some of the guys who may not know what/where you are referring to:

EDIT: Actually, an image was needed for me! Doh!!!

My '88 3.2L to 3.5L : One spring

My friends '85 3.2L to 3.4L: One spring

Ralph

P.S. - IIRC there is also a spring in the throttle body, but I don't think you are referring to that, right? That would be considered a 3rd spring.

[ChrisBennet]

Thanks guys, good idea. I'll post some pictures tonight.
-Chris

[Carrera3.5L]

Originally posted by ChrisBennet
Thanks guys, good idea. I'll post some pictures tonight.
-Chris

To help Chris out, here are a couple of pics:

full motor view of the single spring:




and a close up image of the single spring:



Ralph

[ChrisBennet]

Here is a picture of the double return spring setup as viewed between the intake runners for #1 and #2:


Here you can see extra spring on the right:


Here is the view from the flywheel side of the motor. The bell crank lever that the 2nd spring attaches to is different than earlier motors. Instead of being one flat piece, it looks like a "hangman" symbol or for you mechanical engineering types, it looks like a the symbol for torque (Gamma) only backwards.



I looked in the PET tonight and according to the that, the single springs were used up to '85 and the double springs were used from '86. That doesn't jibe with the single spring '89 motor I have or with Ralph's '88.

-Chris

[ChrisBennet]

Ah! Ralph and I posted at the same time. Now that you know which springs I mean, do you need to change your answer?
-Chris

[Carrera3.5L]

Originally posted by ChrisBennet
Ah! Ralph and I posted at the same time. Now that you know which springs I mean, do you need to change your answer?
-Chris

Chris, yes I do. Here is a pic of my motor with the dual springs. Sorry for the confusion!!!



You can clearly see the 2 springs in the image.

Ralph

EDIT: I was really wondering what the heck you were talking about, as I have never seen dual springs nor a provision for a second spring up top.