 
Main Menu
|
|
Nevada Classics
|
|
Advertise at CC
|
| S |
M |
T |
W |
T |
F |
S |
| |
|
|
1 |
2 |
3 |
4 |
| 5 |
6 |
7 |
8 |
9 |
10 |
11 |
| 12 |
13 |
14 |
15 |
16 |
17 |
18 |
| 19 |
20 |
21 |
22 |
23 |
24 |
25 |
| 26 |
27 |
28 |
29 |
30 |
31 |
|
|
|
CC Advertisers
|
|
11-03-2012, 10:55 AM
|
|
CC Member
|
|
|
Join Date: Mar 2012
Location: DC,
MD
Cobra Make, Engine: Everett Morrison
Posts: 90
|
|
Not Ranked
I need cooling system help
EM
460 C6 Decent cam
Okay so here's the deal.. My car will not stop this driping out of the
what I will call overflow tank.. Recently it overheated for the first time
and it never did that ' Yesterday I just let in run in the driveway for about an hour and it was starting to get hot and the overflow tank was just non stop pissing fluid.. I have had it with this. it just made my entire engine bay as complete filthy mess. It never did that always stayed around 90c
I tried new cap no real help
I constatny check the water level and burp it as best as I can get it.
What is the solution here ? I don't wanna waste time or money
what will fix this so I do it one time.
Sorry about the pics " this forum is so hard to deal with images..
why will this site never post pics ? mine are all under 39k
Last edited by avdcav; 11-03-2012 at 10:59 AM..
Reason: Pic upload
|
11-03-2012, 11:03 AM
|
|
CC Member
|
|
|
Join Date: Mar 2012
Location: DC,
MD
Cobra Make, Engine: Everett Morrison
Posts: 90
|
|
Not Ranked
|
11-03-2012, 11:15 AM
|
 |
CC Member
|
|
|
Join Date: Dec 2001
Cobra Make, Engine: BDR
Posts: 536
|
|
Not Ranked
If this is a new issue have you changed your t-stat yet?
|
11-03-2012, 11:16 AM
|
 |
CC Member
|
|
|
Join Date: Jan 2008
Location: Williamsport,
PA
Cobra Make, Engine: Kellison Stallion 468 FE
Posts: 2,703
|
|
Not Ranked
run it and when you think its up to operating temp feel the radiator hoses and the radiator.....are they hot? if no then the thermostat isn't opening if they are hot too then there is probably a leak somewhere such that the cooling system is not getting pressurized causing the overheat and the tank to pee. you'll need to pressure test the cooling system and find the leak as it may be in the motor not just externally.
__________________
Fred B
|
11-03-2012, 12:08 PM
|
 |
CC Member
|
|
|
Join Date: Jul 2005
Location: Bartlett,
Ill
Cobra Make, Engine: Everett-Morrison LS1
Posts: 2,448
|
|
Not Ranked
Everything is downhill-----------cap is lower than engine, catch can is lower than radiator--
is that a coolant recovery type cap???????? and what pressure??????????what do you have for a catch can??????????how are the inlet /outlet confiqured??????????
|
11-03-2012, 12:36 PM
|
|
CC Member
|
|
|
Join Date: Aug 2007
Location: Carlsbad,
Ca
Cobra Make, Engine: SPF 2932 with 438 Lykins Motorsports engine. Previous owner of FFR 5452.
Posts: 2,616
|
|
Not Ranked
Your thermostat is sticking. Replace it.
__________________
Jim
|
11-03-2012, 02:36 PM
|
|
CC Member
|
|
|
Join Date: Mar 2012
Location: DC,
MD
Cobra Make, Engine: Everett Morrison
Posts: 90
|
|
Not Ranked
The other day I pressure tested te cooling system at 18 pounds
For 2 hours. Needle didn't even flinch. So that's good
When it gets up to op temp the hose from the thermostat
To the filler cap expands and stays expanded for a while as
The car is cooling down . So pressure seems good,
Should the blue tank be moved into the engine compartment
To try and raise it up?
I've always been Porsche " oil cooled so you see why
I am water challenged . |
11-03-2012, 04:02 PM
|
|
CC Member
|
|
|
Join Date: Jan 2008
Location: Williamsport,
PA
Cobra Make, Engine: Kellison Stallion 468 FE
Posts: 2,703
|
|
Not Ranked
hard to tell from the pics what the can is even for....
what hoses go to it? if its just for the overflow from the cap take the hose off and troubleshoot the leak without it, if there is that much overflow going into it then why?
1- radiator cap is too low of pressure
2- its the right pressure and your blowing engine compression into the cooling system, but you said you pressure tested at 18 then why didn't pressure go into the tank then? or maybe it wasn't 18, or maybe there is more pressure at running than you realize.
3- you simply have the system overfull
4- clogged radiator, collapsed radiator hose on the pump side.....
drain some of the coolant pull the upper hose and put a new t-stat in it.
there is no real magic wand here, if it ran fine before than something has changed......
__________________
Fred B
|
11-03-2012, 04:14 PM
|
|
CC Member
|
|
|
Join Date: Mar 2012
Location: DC,
MD
Cobra Make, Engine: Everett Morrison
Posts: 90
|
|
Not Ranked
Yes it's just overflow from the cap
Cap now is 14 pounds
Was 16
I'm gonna change the tstat and the tstat housing
And drill the little hole people seem to recommend
|
11-03-2012, 05:25 PM
|
|
CC Member
|
|
|
Join Date: Jan 2008
Location: Williamsport,
PA
Cobra Make, Engine: Kellison Stallion 468 FE
Posts: 2,703
|
|
Not Ranked
14 might be a tad low.....i would stick the 16 on....the higher the pressure the higher the boiling point of the water
__________________
Fred B
|
11-03-2012, 05:33 PM
|
 |
CC Member
|
|
|
Join Date: May 2008
Location: Brisbane,
QLD
Cobra Make, Engine:
Posts: 2,797
|
|
Not Ranked
You should run a header tank system with the tank mounted above the thermostat housing. Now the pressure cap will be the highest point and will self bleed every time. All new cars have a system like this for good reason.
Your overflow tank is a poor design, too small, can't see what volume is in it etc. The tank max level should be at about half way.
__________________
Gary
Gold Certified Holden Technician
|
11-03-2012, 06:54 PM
|
 |
CC Member
|
|
|
Join Date: Jul 2009
Location: Westerly,
RI
Cobra Make, Engine: Fordstroker 408w custom solid roller-Craft ported Brodix 17*heads-CFM ported Vic Jr. intake-1 3/4 primaries- 575hp-TKO-600RR Liberty upgrade- -Moser 8.8 trutrac-McLeod Street Extreme--QA-1-Wilwood brakes, Classic Chambered 3" Cobrapacks, Avon's
Posts: 645
|
|
Not Ranked
You let it idle in the driveway for an hour!!!? Don't ever do this without changing the rpms every few minutes. This is not good for a engine with a "decent cam".
"don't want to waste time and money"!!!??? It's a Cobra!!, I waste alot of time and $$ on my Cobra--just ask my wife.
Lou
__________________
Lou
|
11-03-2012, 08:08 PM
|
|
CC Member
|
|
|
Join Date: Jul 2005
Location: Bartlett,
Ill
Cobra Make, Engine: Everett-Morrison LS1
Posts: 2,448
|
|
Not Ranked
Answer my question----Is it a coolant recovery type cap????????????
|
11-03-2012, 10:07 PM
|
|
CC Member
|
|
|
Join Date: Nov 2000
Location: Flower Mound, TX,
tx
Cobra Make, Engine: Lonestar LS 427, Keith Craft 501,Toploader
Posts: 883
|
|
Not Ranked
Here's what you need to do:
1) Get a clear plastic overflow tank from your local A/P store and replace that blue
thing you now have.
2) Never, EVER idle your Cobra for an hour! Why would you even do that? Out of all
the thousands of Cobras on this site, I'll bet at least 75% of them (including mine),
will overheat and spew fluid everywhere if they were to idle for an hour.
__________________
" It ain't no big deal" 
|
11-04-2012, 06:06 AM
|
 |
CC Member
|
|
|
Join Date: Feb 2009
Posts: 1,696
|
|
Not Ranked
Do what everybody above recommends, and if none of that works, replace the head gaskets. Assuming the thermostat is working correctly and you have a good/correct cap, it sounds like a gasket is bad and is pushing coolant out.
|
11-04-2012, 10:47 AM
|
|
CC Member
|
|
|
Join Date: Jan 2008
Location: Williamsport,
PA
Cobra Make, Engine: Kellison Stallion 468 FE
Posts: 2,703
|
|
Not Ranked
Quote:
Originally Posted by Jerry Clayton
Answer my question----Is it a coolant recovery type cap????????????
|
very important.......2 types of caps. the wrong one will do what you are describing...
__________________
Fred B
|
11-04-2012, 12:56 PM
|
|
CC Member
|
|
|
Join Date: May 2008
Location: Brisbane,
QLD
Cobra Make, Engine:
Posts: 2,797
|
|
Not Ranked
Quote:
Originally Posted by FWB
very important.......2 types of caps. the wrong one will do what you are describing...
|
Correct, a non recovery cap will allow coolant into the tank at the cap relief pressure but won't allow coolant to drawn back from the tank as the engine cools down.
For every time the coolant gets pushed out, the level goes up in the tank.
__________________
Gary
Gold Certified Holden Technician
|
11-05-2012, 06:56 AM
|
|
CC Member
|
|
|
Join Date: Mar 2012
Location: DC,
MD
Cobra Make, Engine: Everett Morrison
Posts: 90
|
|
Not Ranked
I'm gonna see if I got this right by consensus
Do not let car sit in driveway an idle for an hour "
These silly air cooled machines... Very finicky
|
11-05-2012, 08:04 AM
|
|
CC Member
|
|
|
Join Date: Jan 2008
Location: Williamsport,
PA
Cobra Make, Engine: Kellison Stallion 468 FE
Posts: 2,703
|
|
Not Ranked
so your advocating a air cooled Porsche engine solely because you can let it sit and idle in your driveway for an hour?
all water cooled engines are sub-standard because you are having a coolant issue?
honestly get used to tinkering and having to adjust, play with, modify your car...it is a custom car. if you want a plug and play 24-7
buy a production car from one of many car manufactures that has billions tied up in testing
__________________
Fred B
|
11-05-2012, 12:45 PM
|
 |
Half-Ass Member
|
|
|
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,013
|
|
Not Ranked
Quote:
Originally Posted by FWB
...honestly get used to tinkering and having to adjust, play with, modify your car...it is a custom car. if you want a plug and play 24-7...
|
He's probably got the wrong cap on there, just like Gaz said. AVDCAV, read this thread Overflow Tank question and take note of the reference to the "Radiator Caps, They're Not All The Same" thread and, specifically, the Putnam Suck Test to determine what cap you have (no, I'm not kidding).  |
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -7. The time now is 10:58 AM.
Links monetized by VigLink
|
Linear Mode
