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I don't suppose anyone knows what manner GM set up the two return springs on a TPI throttle body.
I rebuilt mine with bushings and all that is fine but the damn springs sprung taking it apart before I could
tell how they were oriented.
I'm not sure what their logic was with two of them unless it's just one as a backup, they both attach to
the inner and outer plastic holders in the same at rest position more or less so I tried giving the inner one
a single turn and the outer none, giving them both a single turn, and it does not seem possible to give the outer
a turn and the inner one not. The first option I read on a post from long ago from a fellow but that seems to leave
the outer spring doing basically nothing, and my pre-disassembly photos show the coils on the outer bound
together more than that position leaves it so I don't think that's right. At any rate everything I've tried feels either too soft or too stiff.
This is a MT car so having it too stiff is annoying for feathering the throttle when moving off from
a standstill and too soft is a bad idea in general.
I apologize right off the bat as I may not be of much help, I am just trying. This article from a member may help and the one photo of the spring may be a bit better than your pre dissasembly photos.
Sorry if it doesn't help.
.
. https://www.corvetteforum.com/forums...dy-triage.html
.
I apologize right off the bat as I may not be of much help, I am just trying. This article from a member may help and the one photo of the spring may be a bit better than your pre dissasembly photos.
Sorry if it doesn't help.
.
. https://www.corvetteforum.com/forums...dy-triage.html
.
I appreciate it, that is one of the threads I read through before pulling the thing apart. My pics look about like that with a pretty tight
coil wrap on the outer spring. Thing sure seems mighty tight with em set that way though.
Anyone with a fish scale wanna measure the tension on the throttle lever? lol
In hindsight I should have done that and paint marked the springs.
I don't suppose anyone knows what manner GM set up the two return springs on a TPI throttle body.
I rebuilt mine with bushings and all that is fine but the damn springs sprung taking it apart before I could
tell how they were oriented.
I'm not sure what their logic was with two of them unless it's just one as a backup, they both attach to
the inner and outer plastic holders in the same at rest position more or less so I tried giving the inner one
a single turn and the outer none, giving them both a single turn, and it does not seem possible to give the outer
a turn and the inner one not. The first option I read on a post from long ago from a fellow but that seems to leave
the outer spring doing basically nothing, and my pre-disassembly photos show the coils on the outer bound
together more than that position leaves it so I don't think that's right. At any rate everything I've tried feels either too soft or too stiff.
This is a MT car so having it too stiff is annoying for feathering the throttle when moving off from
a standstill and too soft is a bad idea in general.
Anybody?
No logic, assemble both resting then ONE full turn before installing lever. You can't really manipulate the outer it will bind you can go tighter (two full turns) on the inner
Here are pics step by step and the full turn (counterclockwise) I mention in last pic its a little more than open this is when you will drop the lever over. Cant really install springs wrong you can flip and they will still be in same position can stretch/manipulate prior to installing them if you desire firm or softer feeling
Throttle body return spring orientation
