Should Coolant gush out of the...

[ald872000]

Thanks for input fellas,

I to did fill up the radiator a few times. I know the radiator cap method isn't the best but it would show that I have at least have pressure.

The car doesn't overheat. I don't feel much when im right above the engine bay.

[Lincolnmania]

replace the radiator cap

[Mr. Land Yacht]

that's what I was thinking. If it was gushing out of the reserve reservoir then that would be worse.

[79lincolnlover]

I discovered that the older subaru's didn't have that safety release. Turn the cap about 70 degrees to release the pressure, and the thing blew off and sprayed me in the face with boiling coolant... Took forever to heal up.

That sucks...

[GoodSamaritan]

That sucks...

It was an experience I cannot recommend.

I looked at the piece of crap subaru that I was working on at the time. It didn't have a pressure relief on it like every other car produced in the last 5 or 6 decades. You just turned it a bit less than 1/4 turn and it came off in your hand. On my own vehicles I get the caps with the pressure relief lever so it's not an issue.

[ald872000]

Replaced the cap... now I get a piston knock (The imfumis knock on the passenger side)

... the upper radiator hose feels as though it has pressure, but now I get a funny noise from the water pump, a scraping noise..., I think its time for an HO upgrade...


Thanks fellas for the responses. Much appreshieated.

[DarkKnight]

Replaced the cap... now I get a piston knock (The imfumis knock on the passenger side)

... the upper radiator hose feels as though it has pressure, but now I get a funny noise from the water pump, a scraping noise..., I think its time for an HO upgrade...


Thanks fellas for the responses. Much appreshieated.

^_^ The rad cap done that? Try putting the old one back on and see if it clears up. Might buy you some time t get funds up. For parts.
No when check the hose. you let it get hot then squeeze the hose and then let off a little and see if you fill water flowing aye?

If money is a issue you might want to just replace the cooling system. I done that a while back. I dont mind hunting for my old thread if you'd like t see all the questions i asked.? Pics are in it as well im sure.


Then lator on, you can go back and do urre HO. swap

I dont know anything about the Knock though. Ive always fixed any knocks ive had with 20w50 and a quart of Lucus. Which isn't a fix and alot of people frown upon it.

http://www.grandmarq.net/vb/showthread.php?t=19777&page=4

http://www.grandmarq.net/vb/showthread.php?t=22259

[351m]

Water pumps don't always dump the coolant when they go. When it is pressurized pull the belts and fire it up, see if the noise stops, check for play in the pump bearings etc.

[CheeseSteakJim]

It was an experience I cannot recommend.

I looked at the piece of crap subaru that I was working on at the time. It didn't have a pressure relief on it like every other car produced in the last 5 or 6 decades. You just turned it a bit less than 1/4 turn and it came off in your hand. On my own vehicles I get the caps with the pressure relief lever so it's not an issue.

Did you get large scabs on your face? I got big one-piece scabs down the side of my face where my arm didn't block the splashing, boiling coolant.

Yes, I removed the cap from an overheating car. I had just spent the past six months (on and off, not continuously) working the bugs out of a large electrical harness that the coolant was boiling all over. I had to stop it from doing that somehow and the quickest thing that came to mind was to remove the cap while blocking my face. I didn't block it well enough.

Funny thing is the shit also coated my hand and nothing happened to the skin on it. Guess my face was that much more sensitive...

[ald872000]

I replaced the cap with the old one, I get moderate pressure on the upper hose.

DarkKnight
yeah man I check it while the engine is warming up and after I drive it for 15 minutes.
The Tube has moderate pressure know, but when I squeeze I should feel pressure unsqweezing the tube. right?

I checked the bottom hose and I get the same results.

Also I heard if you remove the cap while there is pressure you begin to damage the Head Gaskets. Is that true?

[DarkKnight]

DarkKnight

The Tube has moderate pressure know, but when I squeeze I should feel pressure unsqweezing the tube. right?

I checked the bottom hose and I get the same results.

Also I heard if you remove the cap while there is pressure you begin to damage the Head Gaskets. Is that true?

Ive only ever been able to fill pressure as I was releasing the hoses. Im sure there are monster water pumps that wont leet you even squeeze a hose but i haven't came across one yet.

Never herd that about damaging the head gasket either. Maybe someone else has though.

O, you are testing pressure by releasing the cap after its hot and the engine has stopped right/? Just double checking is why i ask.

[cld783]

I replaced the cap with the old one, I get moderate pressure on the upper hose.

DarkKnight
yeah man I check it while the engine is warming up and after I drive it for 15 minutes.
The Tube has moderate pressure know, but when I squeeze I should feel pressure unsqweezing the tube. right?

I checked the bottom hose and I get the same results.

Also I heard if you remove the cap while there is pressure you begin to damage the Head Gaskets. Is that true?

is one warmer than the other? when you rev the engine does the coolant level go down in the radiator?

[gadget73]

I to did fill up the radiator a few times. I know the radiator cap method isn't the best but it would show that I have at least have pressure.

Squeeze the upper rad hose. If its hard, you have pressure. If it mushes, you do not have pressure. Much safer than risking a trip to the burn ward.

[ald872000]

Yo fellas,

Checked the radiator while the engine was warm, got some pressure from the radiator, Checked it agian with a 'new' radiator cap, squeezed the upper an lower hoses, they both felt warm and a bit squshy.

[86VickyLX]

Radiator cap after you just went around 90 mph for 20 min??


I ask because I recently changed the thermostat '195', radiator, an hoses an filling it up an checking for leaks (found none). Now when I drive the coolant temp Gauge stays before the 'N' .

Now After I drove fast for 20 min I pulled over and wanted to see if I had pressure in the cooling system. I squeezed the upper and lower radiator hoses. I could squeeze them both very easily, I unscrewed the radiator cap an nothing gushed out. the coolant looked calm an peachy.

Is the system not pressurized?
Could this mean my water pump is shot?

Some added info:
NO water in the tranny lines
No water in the oil
Heater core appears normal, no puddles or smells
Upper intake feels hot, Radiator feels warm.
Fan clutch works aswell as fan


Thanks fellas for any helpful advice.

The water pump does not pressurize the cooling system, it's job is to circulate the coolant. You most likely have air in the lines. Did you fill the reservoir to remove any air bubbles the cooling system might have had? Fill system with 50/50 mix when system is cold, run with cap off until it starts to gurgle out the top. Then once it starts doing that, put the cap back on, and make sure the reservoir is full. And if the cap is leaking, I'd take it back and get a new one. 16psi is the correct cap rating for our cars.