please help this is killing me!
06-23-2008, 05:57 PM
#1
2nd Gear Member
Thread Starter
Join Date: Feb 2008
Location:
Posts: 172
please help this is killing me!
i need help with a problem i am having with my new motor
first i will tell you the bottom end is a stock rebuild
it now has fresh gt40 iron heads
tf street intake and an e cam
ok the problem is my car loses waterits not leaking water or smoking or getting in the oil but after the car is good and hot when i turn the car off the radiator hoses have alot of pressure on them (more than normal) and it will fill the over flow jug so much that it runs out the top of the over flow jug and onto the ground.
but the car never got hot until last week on the interstate we drove about 60 miles then had to stop at 2 red lights then took back off went about 45 seconds and the guage was shooting up fast! so i pulled over and cut the car off opened the hood and i have a new radiator cap with a pressure relief valve so i released the pressure slowly as i was doing so it was once again filling up the over flow jug and when i got all the pressure off i took the cap off and filled the radiator full which it was about 1 gallon low then started the car back up and the temp dropped back to normal
it did that twice that day same problem
i also blew a heater hose that day that was almost brand new and i think it was excessive pressure that was the cause
first when i got the problem i started with a new radiator cap, new thermostat 180*, new fan clutch, and i took it to the local community college where i borrowed this tool im not sure what the call it but it has this fluid in it and they put it on the neck of the radiator and it checks for combustion gasses in the cooling system for example head gasket, cracked head, etc. it came back clean no combustion gasses so i don't know what else to do anyone ever heard of this before?
please help
first i will tell you the bottom end is a stock rebuild
it now has fresh gt40 iron heads
tf street intake and an e cam
ok the problem is my car loses waterits not leaking water or smoking or getting in the oil but after the car is good and hot when i turn the car off the radiator hoses have alot of pressure on them (more than normal) and it will fill the over flow jug so much that it runs out the top of the over flow jug and onto the ground.
but the car never got hot until last week on the interstate we drove about 60 miles then had to stop at 2 red lights then took back off went about 45 seconds and the guage was shooting up fast! so i pulled over and cut the car off opened the hood and i have a new radiator cap with a pressure relief valve so i released the pressure slowly as i was doing so it was once again filling up the over flow jug and when i got all the pressure off i took the cap off and filled the radiator full which it was about 1 gallon low then started the car back up and the temp dropped back to normal
it did that twice that day same problem
i also blew a heater hose that day that was almost brand new and i think it was excessive pressure that was the cause
first when i got the problem i started with a new radiator cap, new thermostat 180*, new fan clutch, and i took it to the local community college where i borrowed this tool im not sure what the call it but it has this fluid in it and they put it on the neck of the radiator and it checks for combustion gasses in the cooling system for example head gasket, cracked head, etc. it came back clean no combustion gasses so i don't know what else to do anyone ever heard of this before?
please help
06-23-2008, 06:13 PM
#2
2nd Gear Member
Join Date: Mar 2008
Location: Ft Worth, TX
Posts: 346
RE: please help this is killing me!
Go to Autozone or what ever over the counter part store you have around and get a block test kit ($20) Plus fluid $10 and follow the directions and test your system. This will let you know if you have exhaust gas in your colling system and causing excessive pressure.
06-23-2008, 06:24 PM
#4
4th Gear Member
Join Date: Oct 2007
Location: Houston, TX
Posts: 1,049
RE: please help this is killing me!
ORIGINAL: brentloftis
Go to Autozone or what ever over the counter part store you have around and get a block test kit ($20) Plus fluid $10 and follow the directions and test your system. This will let you know if you have exhaust gas in your colling system and causing excessive pressure.
Go to Autozone or what ever over the counter part store you have around and get a block test kit ($20) Plus fluid $10 and follow the directions and test your system. This will let you know if you have exhaust gas in your colling system and causing excessive pressure.
ORIGINAL: 91lx50udlose
i borrowed this tool im not sure what the call it but it has this fluid in it and they put it on the neck of the radiator and it checks for combustion gasses in the cooling system for example head gasket, cracked head, etc. it came back clean no combustion gasses
i borrowed this tool im not sure what the call it but it has this fluid in it and they put it on the neck of the radiator and it checks for combustion gasses in the cooling system for example head gasket, cracked head, etc. it came back clean no combustion gasses
06-23-2008, 06:51 PM
#5
Banned
Join Date: Dec 2005
Location: Lil' Rhody
Posts: 22,376
RE: please help this is killing me!
by releasing the pressure in the cooling system, and then filling the radiator... you actually over-filled it
the problem isnt the car.. its YOU
when water heats up, it expands. The radiator cap is designed to release the pressure after a pre-determined pressure is reached (usually 16 psi)
by releasing the pressure that was built up you were in fact draining some of the coolant out of the car.
the ONLY place you should be adding coolant to is the overflow bottle. When the car is cooling off, the system will actually suck the coolant back into the radiator
*edit*
and from the sound of things... you shooting off a heater hose... you probably have a bad rad cap. Take that POS pressure relief cap and throw it in the garbage. get a standard STANT cap and put it on there
the problem isnt the car.. its YOU
when water heats up, it expands. The radiator cap is designed to release the pressure after a pre-determined pressure is reached (usually 16 psi)
by releasing the pressure that was built up you were in fact draining some of the coolant out of the car.
the ONLY place you should be adding coolant to is the overflow bottle. When the car is cooling off, the system will actually suck the coolant back into the radiator
*edit*
and from the sound of things... you shooting off a heater hose... you probably have a bad rad cap. Take that POS pressure relief cap and throw it in the garbage. get a standard STANT cap and put it on there
06-23-2008, 07:22 PM
#6
2nd Gear Member
Thread Starter
Join Date: Feb 2008
Location:
Posts: 172
RE: please help this is killing me!
im not over filling it it's building too much pressure i know it expands but its not supposed to make the radiator get so low that it runshot! and there is no need to fill the overflow jug because it is full all the time after its been run
the reason it is losing the water is becuase it is building sooooo much pressure that it releases it in the over flow
im trying to get help finding why there is too much pressure causing the problem im not asking how to fill the radiator
the reason it is losing the water is becuase it is building sooooo much pressure that it releases it in the over flow
im trying to get help finding why there is too much pressure causing the problem im not asking how to fill the radiator
06-23-2008, 07:42 PM
#10
M.A.D. Motorsports
Join Date: Jul 2006
Location: Indiana
Posts: 8,014
RE: please help this is killing me!
Was it a new cap? It shouldn't have been leaking out of the cap so it doesn't sound like the regular cap was new.......but......DID YOU BURP THE AIR OUT OF YOUR SYSTEM????? That could be part of it. Is you timing dead on right? I was having a overheating problem similar to yours when my dizzy was off a tooth or two. How old is the radiator???? Could be partially clogged.