Sticking TB
#1
TECH Enthusiast
Thread Starter
iTrader: (3)
Join Date: May 2005
Location: York, PA
Posts: 590
Likes: 0
Received 0 Likes
on
0 Posts
Sticking TB
aside from putting a second return spring on my NW 90mm throttle body is there another suggestion to fix my sticking throttle body? i bench tested the TB and it works fine, when i bolt it to the FAST intake it sticks partially open. ( car will idle around 2500-3000 rpms)
#2
Moderator
iTrader: (11)
Join Date: Mar 2002
Location: East Central Florida
Posts: 12,604
Likes: 0
Received 6 Likes
on
6 Posts
Sounds like maybe the manifold bore is undersized. You
ought to be able to find the clearance problem by scuff
marks or put a little paint in the TB and manifold throats
to show where.
ought to be able to find the clearance problem by scuff
marks or put a little paint in the TB and manifold throats
to show where.
#6
11 Second Club
iTrader: (18)
Mine did exactly what you were talking about with a FAST 90mm tb.
I put grease on the bore so I could see where the blade was dragging and dremeled it there a little at a time.
I've heard you can also try loosening the blade screws and let it adjust itself then retighten them down.
I put grease on the bore so I could see where the blade was dragging and dremeled it there a little at a time.
I've heard you can also try loosening the blade screws and let it adjust itself then retighten them down.