Throttle Body coolant/warm up stuff - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 02-23-2009, 07:11 PM   #1
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Aug 2006
Location: Concord, North Carolina
Posts: 4,173
Total Cats: 5
Default Throttle Body coolant/warm up stuff

So, I took my TB off when I did the TPS mod. I am pretty sure the O ring style gasket is fucked and this where it is where a coolant leak I have is coming from. What is the **** for?

The coolant passage/lines around the throttle body.

Is it just to keep the throttle plate from freezing open/closed?

Last edited by miatamania; 02-23-2009 at 08:55 PM.
miatamania is offline   Reply With Quote
Old 02-23-2009, 08:09 PM   #2
Newb
 
Join Date: Apr 2008
Location: Northern VA
Posts: 31
Total Cats: 0
Default

It's to prevent condensation from freezing to the walls of the throttle body.
I could be a little off on the dynamics but basically:
Air accelerating through the throttle can have moisture forced out of it (as it changes direction and/or speeds up through the opening) if it's cold enough the moisture condenses and freezes, after a while build up can occur (pretty quick if it's humid and cool)

I don't think that its very likely to freeze your throttle open or closed but eventually narrowing the intake to the point you lose power.
wroark is offline   Reply With Quote
Old 02-23-2009, 08:22 PM   #3
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,857
Total Cats: 1,788
Default

what o-ring? there's no o-ring on the TB. There's a rubber "o-ring" type gasket for the idle valve, but not for the coolant passages.
Braineack is online now   Reply With Quote
Old 02-23-2009, 08:37 PM   #4
Elite Member
iTrader: (3)
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 6,009
Total Cats: 583
Default

Actually, it's part of the idle speed controls for the engine. See the following link.

If you have a 1
hornetball is online now   Reply With Quote
Old 02-23-2009, 08:54 PM   #5
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Aug 2006
Location: Concord, North Carolina
Posts: 4,173
Total Cats: 5
Default

Quote:
Originally Posted by Braineack View Post
what o-ring? there's no o-ring on the TB. There's a rubber "o-ring" type gasket for the idle valve, but not for the coolant passages.
Yes, it is the funny little rubber gasket between the throttle body and the idle stuff. Def. coolant in the passages when I took it off. I'm wondering if I fucked it up putting it back on? And coolant is getting into my IC piping...I can't exactly tell where it is leaking form, but it is ending up 1) On my alternator, and smoking at the front of the engine, I can't narrow where the smoke is coming from.

Thanks guys.
miatamania is offline   Reply With Quote
Old 02-23-2009, 09:25 PM   #6
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,857
Total Cats: 1,788
Default

coolant can mix with the intake if that gasket is bad.

Braineack is online now   Reply With Quote
Old 02-23-2009, 09:39 PM   #7
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Aug 2006
Location: Concord, North Carolina
Posts: 4,173
Total Cats: 5
Default

Thank you.

That is exactly what I was looking for.

What are the odd of coolant going BACK down the IC piping at idle and pooling/burning? That would cause the weird "unable to find the exact leak" but there is steam/smoke everywhere phenomenon would it not?
miatamania is offline   Reply With Quote
Old 02-23-2009, 09:56 PM   #8
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,857
Total Cats: 1,788
Default

chances are really slim...if you ever looked at a TB and where the idle passages go behind the butterfly valve you'd understand.
Braineack is online now   Reply With Quote
Old 02-23-2009, 10:02 PM   #9
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Aug 2006
Location: Concord, North Carolina
Posts: 4,173
Total Cats: 5
Default

good point. they are behind the plate :\

I just need some warm weather so I can go pull it apart and see what I can find. This is frustrating. I got it running better, throttle response is MUCH better than it was...and I it starts to do this. Heh.

She is pissed that I bought an E30 I think.
miatamania is offline   Reply With Quote
Old 02-25-2009, 10:13 AM   #10
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Aug 2006
Location: Concord, North Carolina
Posts: 4,173
Total Cats: 5
Default

It was def that seal, it got a little cut when I put it back together because it is not seating right. A little RTV and some time later...fixed.


It smoked for a while, but I decided to see what happened and I think was from coolant going INTO the IC piping while working on it, then just burning off
miatamania is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
OTS Bilstein to motorsports ASN conversion stoves Suspension, Brakes, Drivetrain 5 04-21-2016 04:00 PM
Expected intake temps on the track? tazswing Race Prep 20 10-03-2015 12:04 PM
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 10:30 AM
Another Alternator thread ihiryu General Miata Chat 9 09-28-2015 11:22 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 05:06 PM.