aldrichg9

iTrader: (1)

I have a Edelbrock 90mm throttle body on my cast iron 6.2 with TBSS intake

When cold - the blade moves freely and hits the stop screw with no hint of getting hung up.

When the engine is warm however, it typically sticks partially open (2-5% open)

If I blip the pedal it ussually goes closed the rest of the way.

Anyone had a problem like this?
I am trying to figure out what to do about it - The cable is free.
I am considering taking it off and cleaning up the edges of the blade or maybe the opening.

Also it just occured to me I should look to see if there is part of the intake manifold growing when warm and causing an obstruction.

What do you guys think?

1FastBrick

iTrader: (17)

Does this issue affect your Idle??? Why not contact the manufacturer???

Sales3@Texas-Speed

iTrader: (2)

You could try loosening the screws that hold the blade in place, and reposition the blade and see if that helps.

aldrichg9

iTrader: (1)

1fastbrick - This definitely affects idle. holds it up around 1600 and IAC drops to zero until I blip the throttle.
Manufacturer might be a good place to start - the best place maybe.

Jake - So do you mean moving the blade on the shaft to see if its the blade sticking or the shaft?
Not a bad idea.

Sales3@Texas-Speed

iTrader: (2)

With as many as they produce, I could see that there may be a few that could be off a little. It shouldnt take more than 10 mins to find out. If you have a chance afterwards, and dont mind, please let us know if this fixes your issue.

aldrichg9

iTrader: (1)

I took the throttle body off tonight.
Could see shiny metal on the bottom side of the blade, not shiny on top. Clearly wasn't centered.
Also one of the screws was a tad loose.
I centered the throttle body and made sure I tightened the screws but haven't had a chance to take it for a good long drive yet.

aldrichg9

iTrader: (1)

That fixed it.
Should have taken it apart rather than post first.

Thanks for the help.