6th Generation Civic 1996 - 2000 In the years from 1996 to 2000 Honda released it's 6th Generation Civic.
Chassis codes: EK9, EK4, EK3, EJ6, EJ8, EJ9, EM1

Tstat/Rad/Head Gasket??? Please help

 
Thread Tools
 
Search this Thread
 
Old Jun 7, 2014
  #31  
ezone's Avatar
If you think a good mechanic is expensive, try hiring a bad one
 
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 518
ezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond repute
Re: Tstat/Rad/Head Gasket??? Please help

and a rad that I can no longer see fluid at or past the neck. This is when I would normally fill the rad up
Does this mean the radiator is not completely full?




If there is a big air pocket in the system, the liquid won't be pulled out of the reservoir as the system cools.
If the engine is pushing 'air' into the cooling system causing displacement of the liquid, that also will cause it to not pull liquid out of the reservoir.
Old Jun 11, 2014
  #32  
civlxbro's Avatar
Thread Starter
Registered!!
 
Joined: Sep 2009
Posts: 35
Likes: 0
Rep Power: 0
civlxbro should not be trusted
Re: Tstat/Rad/Head Gasket??? Please help

Originally Posted by ezone
A true leakdown test uses a dedicated tester with pressure regulated to like 30 PSI, which usually isn't enough to push past a breach.

I connect 160-170 PSI directly out of the shop air hose directly into each cylinder for my test.
Um wow that's incredibly high lol
Old Jun 11, 2014
  #33  
civlxbro's Avatar
Thread Starter
Registered!!
 
Joined: Sep 2009
Posts: 35
Likes: 0
Rep Power: 0
civlxbro should not be trusted
Re: Tstat/Rad/Head Gasket??? Please help

Originally Posted by ezone
Does this mean the radiator is not completely full?




If there is a big air pocket in the system, the liquid won't be pulled out of the reservoir as the system cools.
If the engine is pushing 'air' into the cooling system causing displacement of the liquid, that also will cause it to not pull liquid out of the reservoir.
it would be crazy to find out a large bubble was still in the system after I've buried the system and let it run for an hour, twice.

I'm starting to think the hose that connects the rad to reservoir or the hose connected to the cap of the reservoir that sticks into the bottom of the bottle could have a leak.

I haven't had any problems past few days. It looked as if the reservoir filled up a bit more than it was when I checked it earlier in the day. I drove for a while, checked again and it was filled up higher than before. the level in the reservoir didn't seem to go down even overnight.

I was driving today and bad traffic jam lead to me running the car longer than normal. The needle crept slightly past the middle mark and I thought oh boy here we go but then it immediately went back to normal level on the gauge.

Once I got to my destination I popped the hood and I could see it displaced that hot coolant properly into the reservoir filling it even more. I'm going to be here all day till 830 and will check the reservoir levels. If the pressure system is working correctly, thelevel in the reservoir should have dropped a considerable amount after sitting for 10 hours right?

.

Last edited by civlxbro; Jun 11, 2014 at 03:37 PM.
Old Jun 11, 2014
  #34  
civlxbro's Avatar
Thread Starter
Registered!!
 
Joined: Sep 2009
Posts: 35
Likes: 0
Rep Power: 0
civlxbro should not be trusted
Re: Tstat/Rad/Head Gasket??? Please help

I can't seem to source these hoses on AutoZone website. I use them because they're within driving distance from my house.
Old Jun 11, 2014
  #35  
ezone's Avatar
If you think a good mechanic is expensive, try hiring a bad one
 
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 518
ezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond repute
Re: Tstat/Rad/Head Gasket??? Please help

Originally Posted by civlxbro
Um wow that's incredibly high lol
No it's not. It's not even close to the cylinder pressures that can occur during normal engine operation.

it would be crazy to find out a large bubble was still in the system after I've buried the system and let it run for an hour, twice.
Not crazy.
Where do you think that "air" bubble would have come from?



thelevel in the reservoir should have dropped a considerable amount after sitting for 10 hours right?
If everything was well and correct, then yes the level should have dropped to its original starting point. The liquid should have been sucked back into the radiator as it cooled.

Yours seems to have a problem.

I can't seem to source these hoses on AutoZone website.
Which hoses?
Old Jun 12, 2014
  #36  
civlxbro's Avatar
Thread Starter
Registered!!
 
Joined: Sep 2009
Posts: 35
Likes: 0
Rep Power: 0
civlxbro should not be trusted
Re: Tstat/Rad/Head Gasket??? Please help

Originally Posted by ezone
No it's not. It's not even close to the cylinder pressures that can occur during normal engine operation.

I see. All I've heard was to not exceed 18psi? and that 15psi was the norm

Not crazy.
Where do you think that "air" bubble would have come from?

What I meant to say was *burp. That's why I hate typing from my phone sometimes. I would imagine all or at least most of the air would be out of the lines after I burped the system originally as part of the troubleshooting letting it run for an hour to get all of the air out of the lines. Then again for another hour after I changed the thermostat.


If everything was well and correct, then yes the level should have dropped to its original starting point. The liquid should have been sucked back into the radiator as it cooled.

Yours seems to have a problem.
Which hoses?
The hose that connects from the radiator neck to the reservoir.
However, on that note, I'm keeping my fingers crossed. I always felt it wasn't the head gasket because it just wasn't showing those heavy symptoms of a blown gasket. Albeit, I've heard some symptoms may never even show. Either way, I just had a gut feeling.

So yesterday when I'm checking the level of fluid, I take a good note of where things are at. I squeeze up and down over and over on the upper and low rad hose, as well as the hose connecting the radiator to the reservoir.

I think I may have released a nasty clog or something by doing this. To recap, I was driving yesterday and was stuck in traffic, the needle on the temp gauge started to go a tick higher than normal operating temperature and then it went right back down to normal. This was a big surprise to me because it would normally rise to about 3/4 before it went back down to the middle. After getting to my destination and about 4hours later letting the car cool down, I see that I pushed more coolant into the overflow. Now earlier that morning, I checked the rad and I couldn't see any fluid. I check it at the point after it cooling down and I see coolant in it. I leave the car for another 4hours and then check it again. The overflow tank is lower on fluid and now the rad is filled to the neck.

I MAY BE IN THE CLEAR!!! and it may have been a simple clog and swift thinking I'm not getting too excited just yet but, it seems things are working fine and fluids are exchanging properly between the two. The car has not overheated and things are running smoothly.

Last edited by civlxbro; Jun 12, 2014 at 08:23 PM.
Old Jun 12, 2014
  #37  
ezone's Avatar
If you think a good mechanic is expensive, try hiring a bad one
 
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 518
ezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond repute
Re: Tstat/Rad/Head Gasket??? Please help

I see. All I've heard was to not exceed 18psi? and that 15psi was the norm
That's max pressure for the radiator and cooling system, not the combustion chambers.


Which hoses?
The hose that connects from the radiator neck to the reservoir.
I'd just carry in a sample, or take the whole mess off the car and match up some from the bulk tubing dispenser rack at the store.
It does not have to be reinforced hose since it is not under pressure at any time.



Yeah, if there was a hole or a leak in those hoses, then it would be just like trying to drink from a straw with a hole in it. Liquid wouldn't be able to be sucked back into the radiator.

I've seen some that have the hose attached to the cap get the hose curled up so it can't hit the bottom of the bottle. I've seen the hoses get swollen and fall off the lid.



The overflow tank is lower on fluid and now the rad is filled to the neck.
Yay. Keep your fingers crossed.
 
Related Topics
Thread
Thread Starter
Honda Civic Forum
Replies
Last Post
thaler4cuse
Mechanical Problems/Vehicle Issues and Fix-it Forum
6
Sep 7, 2015 08:25 PM
herbiej
7th Generation Civic 2001 - 2005
22
Aug 23, 2015 01:02 PM
Kyles24
Overheating or loss of coolant, heater blowing cold
0
Jul 12, 2015 09:15 PM
Wankenstein
General 7th Gen
6
Jul 9, 2015 10:17 PM
Bounddyy
6th Generation Civic 1996 - 2000
3
Jul 8, 2015 11:22 AM




All times are GMT -5. The time now is 11:07 PM.