1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Mystery Coolant Leak

Thread Tools
 
Search this Thread
 
Old 07-09-07, 06:45 PM
  #1  
Good at "stupid"

Thread Starter
 
Catatonik's Avatar
 
Join Date: May 2006
Location: Ottawa, Ontario
Posts: 254
Likes: 0
Received 1 Like on 1 Post
Mystery Coolant Leak

I have a very small amount of coolant pooled on the top of my intake manifold. It's never been there before, and its NEVER leaked any liquids onto the driveway. My coolant level is perfect, and I cant figure out where its coming from... Time to tear everything apart and do all the seals? It does burn a bit too much oil when its cold, but it dosent bug me. LOL! Smells like dirtbike. MMMmm...
Old 07-09-07, 07:29 PM
  #2  
82, 83, 88, 82 RX-7again!

 
Scott1982's Avatar
 
Join Date: Mar 2006
Location: Upstate New York
Posts: 372
Likes: 0
Received 1 Like on 1 Post
Originally Posted by Catatonik
I have a very small amount of coolant pooled on the top of my intake manifold. It's never been there before, and its NEVER leaked any liquids onto the driveway. My coolant level is perfect, and I cant figure out where its coming from... Time to tear everything apart and do all the seals? It does burn a bit too much oil when its cold, but it dosent bug me. LOL! Smells like dirtbike. MMMmm...
12A? intake mani gasket?
Attached Thumbnails Mystery Coolant Leak-clip_image002.jpg  

Last edited by Scott1982; 07-09-07 at 07:41 PM.
Old 07-09-07, 10:33 PM
  #3  
Rotary Freak

 
bliffle's Avatar
 
Join Date: Sep 2002
Location: SF BayArea
Posts: 2,815
Likes: 0
Received 0 Likes on 0 Posts
What year, model of car? Mileage? History?
Old 07-10-07, 03:04 AM
  #4  
Full Member
 
themayor500's Avatar
 
Join Date: Nov 2006
Location: Palatine IL
Posts: 71
Likes: 0
Received 0 Likes on 0 Posts
I had the same problem and it turned out to be the water pump gasket that was leaking.
Old 07-10-07, 03:13 AM
  #5  
Eats, Sleeps, Dreams Rotary

iTrader: (17)
 
twinkletoes's Avatar
 
Join Date: Apr 2006
Location: Las Vegas, NV
Posts: 3,740
Likes: 0
Received 4 Likes on 2 Posts
If your leak is like what scott1982 has a pic of then its a intake o ring leak. You have to take the intake manifold off, throw some new intake o rings in and new intake manifold gasket on and put everything back together. intake manifold gasket and intake o rings would cost around 15 bucks and thats all you need. hylomar too, to hold the o rings in place while you put the gasket on after.
Old 07-10-07, 07:29 PM
  #6  
Good at "stupid"

Thread Starter
 
Catatonik's Avatar
 
Join Date: May 2006
Location: Ottawa, Ontario
Posts: 254
Likes: 0
Received 1 Like on 1 Post
Ya its the same as scott1982. But more coolant and less gunk. LOL! It is bad to be driving it like this?

Torque spec and sequence for manifold bolts?
Old 07-10-07, 07:33 PM
  #7  
Good at "stupid"

Thread Starter
 
Catatonik's Avatar
 
Join Date: May 2006
Location: Ottawa, Ontario
Posts: 254
Likes: 0
Received 1 Like on 1 Post
BTW. Its a 1984 GSL with 136,000 Kilometers (85,000mi). No winters, weekends only, driven very hard but with care.
Old 07-10-07, 07:59 PM
  #8  
Eats, Sleeps, Dreams Rotary

iTrader: (17)
 
twinkletoes's Avatar
 
Join Date: Apr 2006
Location: Las Vegas, NV
Posts: 3,740
Likes: 0
Received 4 Likes on 2 Posts
Yep, the intake o rings are out....so you need to put new ones in as well as the gasket for the intake manifold. The torque on the bolts should be 9-13 ft. lbs. I was told the sequence by trochoid about the bolts so pm him. I think it was bottom far left, bottom far right. upper left, upper right, then middle ones.. idk though..thats what I think. pm trochoid. he'll tell you.
Old 07-11-07, 12:13 AM
  #9  
Rotary Freak

 
bliffle's Avatar
 
Join Date: Sep 2002
Location: SF BayArea
Posts: 2,815
Likes: 0
Received 0 Likes on 0 Posts
Just torque up slowly moving from nut to nut. It helps to have a shorthandle 3/8 drive torquewrench, HarborFreight has them. the ORings can usually be gotten at the local Ace hardware or Tru Value.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
HalifaxFD
Canadian Forum
126
05-09-16 07:06 PM
sinistersam
New Member RX-7 Technical
5
09-13-15 07:17 PM
ZaqAtaq
New Member RX-7 Technical
2
09-05-15 08:57 PM



Quick Reply: Mystery Coolant Leak



All times are GMT -5. The time now is 02:23 PM.