3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

How much coolant should be in the AST?????

Thread Tools
 
Search this Thread
 
Old 11-08-01, 07:52 PM
  #1  
Junior Member

Thread Starter
 
neoanderson's Avatar
 
Join Date: Feb 2001
Location: Tampa Bay, FL
Posts: 18
Likes: 0
Received 0 Likes on 0 Posts
How much coolant should be in the AST?????

I'm having some coolant leakage but I think mine has to do with a couple newbies putting too much coolant in the system during a recent oil change.

other things:
1) I had a reman put in 6,000 miles ago. (included new h2o pump and thermostat)
2) The temp gauge never goes above half way.
3) The add coolant light has never come on.
4) car starts right up
5) never see the white smoke @ startup
6) took the filler cap off and started it up cold.... coolant quickly started to overflow but before I put the cap on (40 seconds after taking it off and starting it up) I didn't see any bubbles.
7) coolant is right to the top in the AST.
8) coolant is right to the top in the filler.

symptoms:
1) noticed leaking coming from in front of passenger wheel.
2) noticed a lil' coolant near front of car under fuses near the fans.

I've bought a 13 psi filler cap and a 13 psi AST cap and will be replacing them in a lil bit.

My questions are these:
1) should the coolant be to the top of both the AST 'AND' Filler necks?
2) if it's the thermostat, does anyone know a good site that describes replacing it?
Old 11-08-01, 08:11 PM
  #2  
Jinx

 
technonovice's Avatar
 
Join Date: Mar 2001
Location: Raleigh, NC
Posts: 1,260
Likes: 0
Received 0 Likes on 0 Posts
The levels should be close to the top.

There are 3 bolts that hold the water neck to the water pump housing.
REmove those bolts, you might have to push the airpump belt out of the way.
REmove old t-stat and replace with new t-stat. I thinbk there is an o-ring you should replace too. Make sure you note which way the t-stat was pointed when you pull it out, place the new one in the same way. There is a "jiggle pin" on the factory t-stat, make sure the jiggle pin is placed at 12 o'clock. Refill coolant, this can be the tricky part, make sure that you run the car for a min or two and check it again.
The FD system can be a little difficult to burp, check several times
over next day or two AFTER the car has cooled down.
Old 11-09-01, 12:19 PM
  #3  
www.silverbulletrx7.com

 
dis1's Avatar
 
Join Date: Feb 2001
Location: Gaithersburg, Md
Posts: 940
Likes: 0
Received 1 Like on 1 Post
It might be too full as you suspected. When our cars are over filled coolant will overflow out of the overflow tank. Just keep an eye on it. If it doesn't go away then you have a problem.

The AST should be completely full or very close to it.

Also you should buy an aftermarket temp gauge because if you had noticed the stock gauge rising higher than half way it would have already been too late.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LongDuck
1st Generation Specific (1979-1985)
12
10-07-15 08:12 PM
musker
New Member RX-7 Technical
1
10-01-15 05:58 PM
ZaqAtaq
New Member RX-7 Technical
2
09-05-15 08:57 PM



Quick Reply: How much coolant should be in the AST?????



All times are GMT -5. The time now is 05:04 AM.