VAP
03-09-2004, 08:31 AM
<center><img src="http://pictureposter.audiworld.com/711/tbleak.jpg"></center><p>
Here's the TB fresh out of the car. Haven't budged the butterfly plates as I didn't want to disturb anything or risk any potential problems with the sliver falling out. I wanted to catch the culprit in there and not risk losing it to the floor. If it would've dislodged itself I would've been looking at a thousand other possibilities as the plate would've closed up and I would've presumed something else ad infinitum instead of reinstalling it and finding the problem gone.
Note the circumferential light all the way round the secondary butterfly plate. Now look at the 7 o:clock position... thats the culprit. Notice the absence of light around the primary butterfly? Thats because the butterflies are independent until the primary actuates the secondary. Either butterfly could easily be this far off their seat position without raisng the other at all.
Now let's clean this thing up and try it again. From here on ALL modified TB's will under-go the light test before shipping. "Fool me once shame on you, fool me twice shame on me."
I think this also serves notice to anyone with a slightly high idle that your TB may be dirty. While this is likely an aluminum sliver, anything solid could cause the same issue and have people clamboring for a metric butt ton of solutions before arriving at this one.
Here's the TB fresh out of the car. Haven't budged the butterfly plates as I didn't want to disturb anything or risk any potential problems with the sliver falling out. I wanted to catch the culprit in there and not risk losing it to the floor. If it would've dislodged itself I would've been looking at a thousand other possibilities as the plate would've closed up and I would've presumed something else ad infinitum instead of reinstalling it and finding the problem gone.
Note the circumferential light all the way round the secondary butterfly plate. Now look at the 7 o:clock position... thats the culprit. Notice the absence of light around the primary butterfly? Thats because the butterflies are independent until the primary actuates the secondary. Either butterfly could easily be this far off their seat position without raisng the other at all.
Now let's clean this thing up and try it again. From here on ALL modified TB's will under-go the light test before shipping. "Fool me once shame on you, fool me twice shame on me."
I think this also serves notice to anyone with a slightly high idle that your TB may be dirty. While this is likely an aluminum sliver, anything solid could cause the same issue and have people clamboring for a metric butt ton of solutions before arriving at this one.