Throttle Blade is scraping the side wall
12-04-2004, 01:29 PM
#1
TECH Resident
Thread Starter
Join Date: Jul 2004
Location: It's hard work to look this good
Posts: 813
Likes: 0
Received 0 Likes
on
0 Posts
Throttle Blade is scraping the side wall The throttle blade on my MTI TB is scraping the side wall just before closing all the way. This I found out because when I come to a stop light and put it in nuetral the car Idles way to high I got out and popped the hood and pushed it down with my hand using minimal force but you could feel it slightly scraping. It sticks about an 1/8 to 1/4 inch from being totally shut. If I give it a couple revs in neutral sometimes it will shut. It is not dirty at all for I have just cleaned it. How do I fix this. I searched of course, but came up with nothing that resembles my exact problem. It seems like it is rubbing on the passenger side. Do I actually need to take the torx screws loose from the blade and shift it over a bit. I hope not cause I can't get them loose.
12-04-2004, 02:24 PM
#2
12 Second Club
Join Date: Jul 2003
Location: Atlanta
Posts: 3,371
Likes: 0
Received 0 Likes
on
0 Posts
Here's how I fixed my sticking TB blade. Don't even need to take the thing off the manifold.
1. Loosen the two screws holding the blade to the actuator rod.
2. Open the throttle and stick a paper towel folded in half into the TB between the bottom and the blade.
3. Let the blade close itself, then push against the blade, not the cable actuator, to fully close the blade and adjust the spacing for the towel while tightening the screws. They won't take a lot of torque, but you want them pretty snug.
Worked like a charm for me, but if it doesn't work right away, I have a few variations that might help.
The torx screws are most likely loctited, so yheu will have to be worked free. Try some penetrating oil. I wouldn't worry about breaking the screw, but make sure the bit is fully seatec so you don't strip the head as its is pretty small.
1. Loosen the two screws holding the blade to the actuator rod.
2. Open the throttle and stick a paper towel folded in half into the TB between the bottom and the blade.
3. Let the blade close itself, then push against the blade, not the cable actuator, to fully close the blade and adjust the spacing for the towel while tightening the screws. They won't take a lot of torque, but you want them pretty snug.
Worked like a charm for me, but if it doesn't work right away, I have a few variations that might help.
The torx screws are most likely loctited, so yheu will have to be worked free. Try some penetrating oil. I wouldn't worry about breaking the screw, but make sure the bit is fully seatec so you don't strip the head as its is pretty small.
12-04-2004, 08:12 PM
#4
Banned
iTrader: (45)
Join Date: Aug 2003
Location: NC
Posts: 2,556
Likes: 0
Received 0 Likes
on
0 Posts
I agree, that is a solid method. I saw a similar instance with another tb, indeed the blade was binding directly against the casing making a tight fit at idle. Fwiw I turned the idle screw 1/8 turn and it went away.
12-04-2004, 08:16 PM
#5
TECH Resident
Thread Starter
Join Date: Jul 2004
Location: It's hard work to look this good
Posts: 813
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by CrvnTransAm
I agree, that is a solid method. I saw a similar instance with another tb, indeed the blade was binding directly against the casing making a tight fit at idle. Fwiw I turned the idle screw 1/8 turn and it went away.