2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:

ok just changed radiator caps and coolant still spills out of the resevoir

Thread Tools
 
Search this Thread
 
Old 11-22-04, 12:50 PM
  #1  
spending too much money..

Thread Starter
iTrader: (2)
 
hondahater's Avatar
 
Join Date: Dec 2002
Location: louisiana
Posts: 10,117
Likes: 0
Received 1 Like on 1 Post
ok just changed radiator caps and coolant still spills out of the resevoir

what would cause this other than rad caps??? when I had my pressure cap (from autozone) I could release the pressure from the rad cap however instead of flowing back into the resevoir it would come out of the spill tube??? I have the same cap on my 94 passport and when I release the pressure it goes back into the resvoir while none comes out of the spill tube. Could it be the tank itself?
Old 11-22-04, 12:58 PM
  #2  
Former Moderator. RIP Icemark.
 
Icemark's Avatar
 
Join Date: Apr 2001
Location: Rohnert Park CA
Posts: 25,896
Likes: 0
Received 19 Likes on 19 Posts
spill tube??? You mean the overflow tube of the over flow tank???

And I don't undertsand at all what you mean about releasing the pressure. You mean opening the cap???

And the 88 uses two different caps, are you sure you didn't mix them.
Old 11-22-04, 01:11 PM
  #3  
spending too much money..

Thread Starter
iTrader: (2)
 
hondahater's Avatar
 
Join Date: Dec 2002
Location: louisiana
Posts: 10,117
Likes: 0
Received 1 Like on 1 Post
yeah the overflow tube. and the caps I got where (h) on http://www.mazdatrix.com/b8.htm website. When I say release the pressure I mean you know those caps you can get at autozone that have the red lever you can pull that releases the pressure....that.
Old 11-22-04, 03:04 PM
  #4  
spending too much money..

Thread Starter
iTrader: (2)
 
hondahater's Avatar
 
Join Date: Dec 2002
Location: louisiana
Posts: 10,117
Likes: 0
Received 1 Like on 1 Post
still no one?
Old 11-22-04, 03:12 PM
  #5  
Eat Rice Don't Drive it.

iTrader: (3)
 
1987RX7guy's Avatar
 
Join Date: Nov 2002
Location: Laredo, Tx
Posts: 12,752
Likes: 0
Received 1 Like on 1 Post
I'd check the tube mechanism for sure its supposed to flow down first and out as a last resort when it fills up. Atleast I thinkso......


Santiago
Old 11-22-04, 03:15 PM
  #6  
spending too much money..

Thread Starter
iTrader: (2)
 
hondahater's Avatar
 
Join Date: Dec 2002
Location: louisiana
Posts: 10,117
Likes: 0
Received 1 Like on 1 Post
hum......is there a mechanism that does that??? If so I bet thats what it is.
Old 11-22-04, 04:23 PM
  #7  
Rotary Enthusiast

 
drago86's Avatar
 
Join Date: Oct 2002
Location: California, Bay Area
Posts: 1,165
Likes: 0
Received 0 Likes on 0 Posts
blown water seals can cause this
Old 11-22-04, 04:34 PM
  #8  
spending too much money..

Thread Starter
iTrader: (2)
 
hondahater's Avatar
 
Join Date: Dec 2002
Location: louisiana
Posts: 10,117
Likes: 0
Received 1 Like on 1 Post
its not a blown water seal. I've done the water seal test on it and they are fine.
Old 11-22-04, 04:36 PM
  #9  
Sharp Claws

iTrader: (30)
 
RotaryEvolution's Avatar
 
Join Date: Oct 2003
Location: Central Florida
Posts: 5,107
Likes: 0
Received 41 Likes on 40 Posts
is the overflow bottle full?
Old 11-22-04, 04:51 PM
  #10  
spending too much money..

Thread Starter
iTrader: (2)
 
hondahater's Avatar
 
Join Date: Dec 2002
Location: louisiana
Posts: 10,117
Likes: 0
Received 1 Like on 1 Post
no but I'll fill it up and then about two times of driving and its empty because its spewing out of the spill over tank's spill tube.
Old 11-22-04, 05:24 PM
  #11  
Moderator

iTrader: (3)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,904
Received 2,646 Likes on 1,874 Posts
either the caps you have are bad or its running hot and boiling over.
Old 11-22-04, 05:45 PM
  #12  
Lives on the Forum

 
WAYNE88N/A's Avatar
 
Join Date: Feb 2004
Location: Coldspring TX
Posts: 5,721
Likes: 0
Received 2 Likes on 2 Posts
I'm with j9fd, put a freakin' Mazda cap on there, man...

And let me get this straight- you're losing coolant from the radiator to the overflow tank, and it's not being sucked back in on cooldown, right?
Old 11-22-04, 05:50 PM
  #13  
Rotary Enthusiast
 
skatingsamurai's Avatar
 
Join Date: Sep 2004
Location: Co springs, co
Posts: 1,128
Received 3 Likes on 1 Post
ok first of all, hondahater, you and i are completely on the same page here....and i think have been for some time now. and well one of the things that i notice is that when (as mentioned above) when pressure is released(small amount) threw the lower rad cap coolant goes spewin from overflow tank....this is becuase ( i think) when the the pressurized coolant reaches apmospheric tempuratures, it expands like no other. just like if you took that thing completely off. Better yet, take a deep sea diver when he is submerged 1 mile down in the water his body and everything else becomes pressurized. and if he were so surface quickly, he would explode...the same concept applies here i believe. so it is possible to say, that there may a very small leak...as mention many times by other people, either in the tubing, caps, or the rad it self.

what i did was, since the block to uim coolant tube is a major BITCH... i disided to grap some screw clamps and make SURE there was no problem with it. i even pulled it out, inspected it for leaks or holes, and reinstalled with the clamps.

after i bought a new, used oem rad cap. havent had as many problems so far. however periodicly i do get a very short coolant buzzer indicating boiling bubbles hitting the thermo sensor.

that leads me to the theory of the water pump bearing seal going bad. but not enough information on that yet....im going to try a few different rad caps. try some new hoses, see what happens. record it and ill keep you guys posted
Old 11-22-04, 05:52 PM
  #14  
Rotary Enthusiast
 
skatingsamurai's Avatar
 
Join Date: Sep 2004
Location: Co springs, co
Posts: 1,128
Received 3 Likes on 1 Post
well you should say that it is pushed out at cool down for some wacky reason. then it just kinda stops....that my case though i dont know about hondahater
Old 11-22-04, 06:48 PM
  #15  
spending too much money..

Thread Starter
iTrader: (2)
 
hondahater's Avatar
 
Join Date: Dec 2002
Location: louisiana
Posts: 10,117
Likes: 0
Received 1 Like on 1 Post
ok here is a little picture I drew up sorry so crapy!
Attached Thumbnails ok just changed radiator caps and coolant still spills out of the resevoir-rad.jpg  
Old 11-22-04, 07:23 PM
  #16  
Lives on the Forum

 
WAYNE88N/A's Avatar
 
Join Date: Feb 2004
Location: Coldspring TX
Posts: 5,721
Likes: 0
Received 2 Likes on 2 Posts
Is that Arabic? Doesn't look like English to me, lol...

What you're showing us is the normal flow path of hot, pressurized coolant overflowing due to a full tank. If the tank is not "giving up" some of the coolant back to the rad during cooldown, then you have a bad cap, or a leak in the system allowing external air to defeat the vacuum of the system...
Old 11-22-04, 07:28 PM
  #17  
spending too much money..

Thread Starter
iTrader: (2)
 
hondahater's Avatar
 
Join Date: Dec 2002
Location: louisiana
Posts: 10,117
Likes: 0
Received 1 Like on 1 Post
yeah I'm a camel jockey you didn't know it? lol, j/k if you pass your courser over the picture at the bottom right you will see some arrows, just click on the click on the arrows and the picture will get bigger exposing the picture and text.
Old 11-22-04, 07:33 PM
  #18  
Lives on the Forum

 
WAYNE88N/A's Avatar
 
Join Date: Feb 2004
Location: Coldspring TX
Posts: 5,721
Likes: 0
Received 2 Likes on 2 Posts
Ahhhhh, it IS English

If it's still leaking that long after shutdown, your cap isn't sealing properly. My guess...

Check the mating surfaces of the cap & radiator neck seat...
Old 11-22-04, 07:39 PM
  #19  
spending too much money..

Thread Starter
iTrader: (2)
 
hondahater's Avatar
 
Join Date: Dec 2002
Location: louisiana
Posts: 10,117
Likes: 0
Received 1 Like on 1 Post
did I tell you guys that this was happening on my old coolant setup as well. This was happening with my old radiator, old radiator hoses, old caps etc... So it has to be something I havent changed out yet witch would have to be the resevour.
Old 11-22-04, 07:43 PM
  #20  
Lives on the Forum

 
WAYNE88N/A's Avatar
 
Join Date: Feb 2004
Location: Coldspring TX
Posts: 5,721
Likes: 0
Received 2 Likes on 2 Posts
It could very well be the reservoir and/or cap assy...

Why do you keep changing the story and adding clues as we go along?
Old 11-22-04, 07:46 PM
  #21  
spending too much money..

Thread Starter
iTrader: (2)
 
hondahater's Avatar
 
Join Date: Dec 2002
Location: louisiana
Posts: 10,117
Likes: 0
Received 1 Like on 1 Post
lol, sorry wayne the more I think about it the more I remeber stuff and I remember driving around with the old setup and it happend then as well. I think I'm going to get another resevour.
Old 11-22-04, 07:53 PM
  #22  
Lives on the Forum

 
WAYNE88N/A's Avatar
 
Join Date: Feb 2004
Location: Coldspring TX
Posts: 5,721
Likes: 0
Received 2 Likes on 2 Posts
You can try it, but still the fact remains- if you're pissing coolant after shutdown, especially HOURS after shutdown, then your rad cap is not seating properly...

Or maybe I'm not following the Arabic as well as I should.
Old 11-22-04, 07:56 PM
  #23  
spending too much money..

Thread Starter
iTrader: (2)
 
hondahater's Avatar
 
Join Date: Dec 2002
Location: louisiana
Posts: 10,117
Likes: 0
Received 1 Like on 1 Post
lol do you need a refresher course in Arabic??? Hey I got a question though. There are two nozles on the reservoir lid, witch one goes to the rad and witch one to spill over? I think I found the problem. After studying this thing for about 2 seconds I found that the longer nozzle when blown into goes out the bottom hose however the small one goes all over the place. I had the radiator connected to the small one. I'll see if this works.

Last edited by hondahater; 11-22-04 at 07:58 PM.
Old 11-22-04, 08:01 PM
  #24  
Lives on the Forum

 
WAYNE88N/A's Avatar
 
Join Date: Feb 2004
Location: Coldspring TX
Posts: 5,721
Likes: 0
Received 2 Likes on 2 Posts
Man, it's raining its *** off here, and you want me to go look at my car? Lol...

IIRC, the tab on the cap faces aft, and the overflow from the rad comes into the left nipple, and the bottle overflow nipple is on the right. All directions are facing the car from the hood release area.

Hey, if in doubt, swap 'em around. What's it gonna hurt at this point?
Old 11-22-04, 08:19 PM
  #25  
spending too much money..

Thread Starter
iTrader: (2)
 
hondahater's Avatar
 
Join Date: Dec 2002
Location: louisiana
Posts: 10,117
Likes: 0
Received 1 Like on 1 Post
yeah man get your *** out side and get soaking wet for my trivial problem Ya'll must be in the same storm we are in. Your car isn't in the garage man? hehe. Anyways I'm going to try it tomorrow and I'll let you know how it turned out. Thanks again man.Sorry if there are alot of misspellings my daughter is in front of me and I'm guessing at what I'm typing



All times are GMT -5. The time now is 08:38 PM.