Old style 5kq 'round' TB seized

[Brett Dikeman]

On May 27, 2008, at 4:30 PM, Bares, Vittorio wrote:

> Discovered that each end of the butterfly shaft has a needle bearing  
> on
> it. One of them seized right up and would not allow the shaft to turn
> freely. I believe this may have been the issue in a previous TB I  
> had as
> well...

Have you tried throttle body cleaner?  It has lubricants designed for  
the purpose.

I don't know why you're having so much trouble with them seizing,  
unless you're spraying them with brake cleaner- which you should NOT  
do. They're one of those items that generally last the life of the  
engine, so your first step should probably be to figure out what's  
causing all these (dangerous) failures.

Brett