Throttle plate seal
#1
Senior Member
Thread Starter
iTrader: (3)
Join Date: May 2005
Location: Mass.
Posts: 811
Total Cats: 43
Throttle plate seal
So I picked up an Auto TB from a forum member and while it was in good shape and I shouldn't have messed with it - I did.
I took care to mess with the teflon coating on the walls of the TB, however, the plate does not quite seal (If you hold it up to a light there's some light pass through in the upper corner).
Has anyone just removed the teflon altogether and been able to maintain a low idle? I'm convinced the high idle + teflon removal is more myth and fact.
-Zach
I took care to mess with the teflon coating on the walls of the TB, however, the plate does not quite seal (If you hold it up to a light there's some light pass through in the upper corner).
Has anyone just removed the teflon altogether and been able to maintain a low idle? I'm convinced the high idle + teflon removal is more myth and fact.
-Zach
#4
Senior Member
Thread Starter
iTrader: (3)
Join Date: May 2005
Location: Mass.
Posts: 811
Total Cats: 43
-Zach
#6
Senior Member
Thread Starter
iTrader: (3)
Join Date: May 2005
Location: Mass.
Posts: 811
Total Cats: 43
Wrong side, it's on the back. I'll take a picture of it when I get home.
It's pretty common on Fords, BMWs, etc.
It looks like carbon build up until you clean it at which point it becomes pretty obvious that there's some sort of coating applied - I swearz. Keith from FM has posted on the GRM boards before.
After spending 6 hours filing off all the unused bosses, smoothing flashlines and polishing the TB I'll be pretty pissed if I can't get this ****** to seal.
-Zach
It's pretty common on Fords, BMWs, etc.
It looks like carbon build up until you clean it at which point it becomes pretty obvious that there's some sort of coating applied - I swearz. Keith from FM has posted on the GRM boards before.
After spending 6 hours filing off all the unused bosses, smoothing flashlines and polishing the TB I'll be pretty pissed if I can't get this ****** to seal.
-Zach
#9
Senior Member
Thread Starter
iTrader: (3)
Join Date: May 2005
Location: Mass.
Posts: 811
Total Cats: 43
that would be the **** and unfortunately it's causing the plate to not 'seat'.
The mazda shop manual just mentions a 'plastic coating' but I assume it's a teflon based coating.
I'm looking for the best way in which to remove the coating with using any agressive abrasives. So far, no luck.
-Zach
The mazda shop manual just mentions a 'plastic coating' but I assume it's a teflon based coating.
I'm looking for the best way in which to remove the coating with using any agressive abrasives. So far, no luck.
-Zach
#12
Senior Member
Thread Starter
iTrader: (3)
Join Date: May 2005
Location: Mass.
Posts: 811
Total Cats: 43
I have a feeling I'm going to regret touching everything on this car at once ... too many variables.
-Zach
#14
Senior Member
Thread Starter
iTrader: (3)
Join Date: May 2005
Location: Mass.
Posts: 811
Total Cats: 43
I still stick by my last point. I don't see how that "coating" on the back of the throttle plate has anything to do with sealing when the whole bottom half of the leading edge of the plate that does the sealing is the FRONT of the plate. Which btw, has no coating.
At this point I'm just going to remove the coating then dial in my throttle stop. Any Idle adjustment can then hopefully be done with the idle screw.
-Zach
-Zach
#15
Elite Member
iTrader: (2)
Join Date: Jan 2007
Location: Los Angeles, CA
Posts: 8,682
Total Cats: 130
Right, you should be able to trim up your idle with the screw. Also don't forget to adjust the throttle cable. Twice now when I fucked with the TB area my idle was running high afterwards and it was because the cable was pulling the throttle open.
BTW Brain, how is your chiseled up throttle doing? AOK?
BTW Brain, how is your chiseled up throttle doing? AOK?
Thread
Thread Starter
Forum
Replies
Last Post
StratoBlue1109
Miata parts for sale/trade
21
09-30-2018 01:09 PM
stoves
Suspension, Brakes, Drivetrain
5
04-21-2016 03:00 PM