Author Topic: water dumping into over flow please help (Read 3603 times)

ROCKO · « **on:** Dec 29, 2007, 11:20:18 AM »

well this is my problem. i just put on a downey header on my truck a week ago. since then my truck has been dumping water into the over flow so much it comes out the top. ive already changed the radiator cap but it did it again today. its a new motor with about 15000 mile on it. water pump and all that was changed during the installtion of motor. the temputure gague does not move as this is going on im think should i try to flush the radiator and heater core..... any ideas

KDXSR5 · « **Reply #1 on:** Dec 29, 2007, 11:24:33 AM »

I would flush it all, check out the thermostat, and put new fluid in it. If it still does it, then I don't have any other ideas.

79coyotefrg · « **Reply #2 on:** Dec 29, 2007, 05:15:22 PM »

sounds like a blowed head gasket to me

KDXSR5 · « **Reply #3 on:** Dec 29, 2007, 05:23:04 PM »

That sucks! I would have never guessed that. Why does a blown head gasket do that, Glen?

DanS · « **Reply #4 on:** Dec 29, 2007, 05:31:11 PM »

Compression gases going through the coolant passages ending up in the overflow bottle, great guess Glen, two of my three blown head gaskets acted this strange, last head gasket was coolant passing through the oil galley's.
Good luck on the repairs, DanS

KDXSR5 · « **Reply #5 on:** Dec 29, 2007, 05:33:39 PM »

Quote from: DanS on Dec 29, 2007, 05:31:11 PM

Compression gases going through the coolant passages ending up in the overflow bottle, great guess Glen, two of my three blown head gaskets acted this strange, last head gasket was coolant passing through the oil galley's.
Good luck on the repairs, DanS

Ahh, it all makes sense to me now. Thanks for the explanation!

79coyotefrg · « **Reply #6 on:** Dec 29, 2007, 06:29:19 PM »

haginsauto · « **Reply #7 on:** Dec 29, 2007, 07:02:41 PM »

check for hydro carbons in cooling system you can do this with gas analyzer.

DanS · « **Reply #8 on:** Dec 29, 2007, 07:05:30 PM »

Quote from: haginsauto on Dec 29, 2007, 07:02:41 PM

check for hydro carbons in cooling system you can do this with gas analyzer.

You guy's have all the Best tools LOL

toby · « **Reply #9 on:** Dec 29, 2007, 08:05:47 PM »

or you can start it pull the overflow cap, put your thumb over end of the tube and see if it builds pressure.

84pickup · « **Reply #10 on:** Dec 30, 2007, 06:00:54 AM »

get a leak down tester to tell you if you've got a blown head gasket. it's like a compression tester only it provides constant pressure so you can listen for where it's leaking out of. tail pipe means an exhaust valve, dipstick means HG and if you can hear it through the intake or carb then it's an intake valve. great tool.

79coyotefrg · « **Reply #11 on:** Dec 30, 2007, 06:40:59 AM »

Quote from: haginsauto on Dec 29, 2007, 07:02:41 PM

check for hydro carbons in cooling system you can do this with gas analyzer.

why?? he has pressure building in the radiator

he HAS A BLOWN HEAD GASKET

ROCKO · « **Reply #12 on:** Dec 30, 2007, 08:34:46 AM »

so everything is pointing to blown head gasket.... that sucks if it is it a pretty new motor.... could i also do a compression test to find this out

ROCKO · « **Reply #13 on:** Dec 30, 2007, 08:53:35 AM »

theres no smoke out the exaust pipe no noise at all in the motor i timed the truck (i read somewhere that timing could cause this) i did a radiator flush.... during this i found a small vaccum leak fixed that.... glen is saying head gasket so my plan today will be tear down the motor after i do a compression check on all cylinders.... hopefully that tells me something....also buy a new radiator and all new hoses if that does not work im burning this truck in the driveway....just kidding....

fordh8r · « **Reply #14 on:** Dec 30, 2007, 08:54:32 AM »

Quote from: haginsauto on Dec 29, 2007, 07:02:41 PM

check for hydro carbons in cooling system you can do this with gas analyzer.

This is a very good and very quick way to check this.

Quote from: 79coyotefrg on Dec 30, 2007, 06:40:59 AM

why?? he has pressure building in the radiator

he HAS A BLOWN HEAD GASKET

If the compression is being lost into the cooling system so is the combustion and the combustion gases will show up at the radiator neck which will be picked up and read by the gas analyzer.

Cool trick, huh?

79coyotefrg · « **Reply #15 on:** Dec 30, 2007, 08:58:08 AM »

im 99% sure you have a blown headgasket but just for kicks do the test they speak of

is your radiator old and full of junk??

ROCKO · « **Reply #16 on:** Dec 30, 2007, 08:59:51 AM »

yea it old probly the original it had some junk nothing i have not seen before ive already did the radiator flush

fordh8r · « **Reply #17 on:** Dec 30, 2007, 09:03:30 AM »

a compression test may or may not show a blown head gasket depending on how bad the gasket is to begin with. You can also use compressed air in each cylinder (one at a time, with both valves closed) to check for leaks as well. Or even do a leak down test with a leak down tester.

Another quick and easy check....while the engine is cold and hasn't run (say, overnight) within the first 30 sec. of run time if the radiator hoses pressurize....it's head gasket. Or just the same you can watch for a steady stream of bubbles in the coolant with the radiator cap off. All good ways to check for a blown head gasket.

Good luck!

ROCKO · « **Reply #18 on:** Dec 30, 2007, 09:13:07 AM »

i check the hoses in the first 30 secs. the bottom one pressure rized real quick say 15 secs. the top did not (probly not warm enough) i think im just tearing it down and getting ready for the summer no more snow trips for me

ROCKO · « **Reply #19 on:** Dec 30, 2007, 09:31:07 AM »

ok got off the phone with my buudy and he wanted me to ask if there was any head gaskets better then stock.... or just stock i will be putting picks as we go along this will be the first my trucks been on any forms.... that sucks i should of did a build up form it looked great then....
thanks for all the info im tearing it down....

fordh8r · « **Reply #20 on:** Dec 30, 2007, 09:34:52 AM »

Quote from: ROCKO on Dec 30, 2007, 09:13:07 AM

i check the hoses in the first 30 secs. the bottom one pressure rized real quick say 15 secs. the top did not (probly not warm enough) i think im just tearing it down and getting ready for the summer no more snow trips for me

If only the lower hose pressurized and not the upper then the radiator must be plugged solid for the pressure not to equalize in both hoses cause they are open to each other through the radiator.

I would also have the radiator looked at.

Maybe that was the inital cause of your troubles.

ROCKO · « **Reply #21 on:** Dec 30, 2007, 09:53:12 AM »

yea i was thinking that i just tryed to call tap rec. in rancheo cordova but there were closed the motor only has 12504 miles since it was replaced

ROCKO · « **Reply #22 on:** Dec 30, 2007, 02:09:19 PM »

well i checked everything and from what i could see or hear is there was a hugh air bubble in the system somewhere.... open heater hose and bleed out the air while topping off and drove it a few mile where it would start pushing out water and nothing....i think that was my problem air trapped in the coolent system....will let you guys know when i get back from wheelin'.... my buddy is a porsche and bmw machinc thats what he has seen on a couple of cars....i hope this is my problem....if this is not he says the head gasket....but hes 100% thats it....

$Beer Chug\'n$

79coyotefrg · « **Reply #23 on:** Dec 30, 2007, 05:50:18 PM »

thats great then, but if it turns out bad, get a Rock products Multi Layer steel headgasket

KDXSR5 · « **Reply #24 on:** Dec 30, 2007, 05:56:28 PM »

Do you have a link for this, Glen? I want to use the best when I rebuild my engine so I don't blow a head gasket. Thanks.

79coyotefrg · « **Reply #25 on:** Dec 30, 2007, 06:14:14 PM »

http://www.rockprod.com/

79coyotefrg · « **Reply #26 on:** Dec 30, 2007, 06:16:24 PM »

http://www.rockprod.com/gaskets/gaskets.html

KDXSR5 · « **Reply #27 on:** Dec 30, 2007, 06:21:19 PM »

Thanks!

toyJAYota · « **Reply #28 on:** Dec 30, 2007, 11:57:27 PM »

Quote

well i checked everything and from what i could see or hear is there was a hugh air bubble in the system somewhere.... open heater hose and bleed out the air while topping off and drove it a few mile where it would start pushing out water and nothing....i think that was my problem air trapped in the coolent system....

I had the same problem with my 4runner. I gave it a good burp and it seems to be fine now.

Regards,
Jay

ROCKO · « **Reply #29 on:** Jan 02, 2008, 08:05:47 AM »

thanks for the link glen.... i took it out wheelin' ofter about 5 hrs. of driving then wheelin' it started to do the same thing.... head gasket or cracked head

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