coolant leak?
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Elder User
Joined: Jul 2002
Posts: 526
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From: USA
coolant leak?
finally after 100,000 miles my water pump started to make noise, and leak 
so i changed it out this morning. dot everything back together, looking right, everything tight, i double cheacked, and running. now the only problem is that it leaks a bunch of coolant. doesnt look like its coming from the new pump cuz its dry as a bone. all the water lines going and coming to the new pump are tight and dry as a bone. looks like it is coming from somewhere behind the pump on the block maybe? i am very stumped. anything i might has missed that could make a lot of coolant to leak? am going to look at it again this weekend, poor truck now its stuck on the street and i cant drive it
1977 F250 460
C6 Hedman Headers
Dual 40 series
edelbrock performer
holley 4150
msd 6a and blaster coil
so i changed it out this morning. dot everything back together, looking right, everything tight, i double cheacked, and running. now the only problem is that it leaks a bunch of coolant. doesnt look like its coming from the new pump cuz its dry as a bone. all the water lines going and coming to the new pump are tight and dry as a bone. looks like it is coming from somewhere behind the pump on the block maybe? i am very stumped. anything i might has missed that could make a lot of coolant to leak? am going to look at it again this weekend, poor truck now its stuck on the street and i cant drive it 1977 F250 460
C6 Hedman Headers
Dual 40 series
edelbrock performer
holley 4150
msd 6a and blaster coil
Elder User
Joined: Apr 2001
Posts: 997
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From: texarkana, tx
coolant leak?
Don't forget the hose between the intake manifold front to the back of the water pump ---- it gets me every time!!......
Have you got a pressure checker - that'd help, too...
Good Luck,
Have you got a pressure checker - that'd help, too...
Good Luck,
Posting Guru
Joined: Jul 2001
Posts: 1,613
Likes: 2
From: Gainesville, FL
coolant leak?
CJ,
Did you pull your thermostat housing neck. These buggers are prone to corrosion and can be difficult to get to reseal after dissasembly. This would cause coolant to flow down the back/sides of the pump.
Secondly, There are a series of gaskets to be used with the new pump. Think about what gaskets are left.
Thirdly, a bad water pump can be just that, bad, bad for the timing chain cover. If the bearing goes south, the impeller can score or even destroy the timing chain cover. If this happens you'll have coolant in your oil. Check your oil. If there is coolant in it, you'll know in a second; it will look like a milk shake.
There are many different water pump configs on the 302. Which motor did you have?
My Way is the Highway,
KingFisher
Did you pull your thermostat housing neck. These buggers are prone to corrosion and can be difficult to get to reseal after dissasembly. This would cause coolant to flow down the back/sides of the pump.
Secondly, There are a series of gaskets to be used with the new pump. Think about what gaskets are left.
Thirdly, a bad water pump can be just that, bad, bad for the timing chain cover. If the bearing goes south, the impeller can score or even destroy the timing chain cover. If this happens you'll have coolant in your oil. Check your oil. If there is coolant in it, you'll know in a second; it will look like a milk shake.
There are many different water pump configs on the 302. Which motor did you have?
My Way is the Highway,
KingFisher
Thread Starter
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Elder User
Joined: Jul 2002
Posts: 526
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From: USA
coolant leak?
i dont think its the little hose, i made sure to check that one, it isnt corrotion on the water neck, just replaced it. it didnt look like the timing chain cover had anything marks on it when i had the pump off and the oil is fine. its deffinately odd. i am going to work on it tomorrow when i have more daylight time, aand if i find out what was wrong ill let yall know. ps the motor is a 460
1977 F250 460
C6 Hedman Headers
Dual 40 series
edelbrock performer
holley 4150
msd 6a and blaster coil
1977 F250 460
C6 Hedman Headers
Dual 40 series
edelbrock performer
holley 4150
msd 6a and blaster coil
Thread Starter
|
Elder User
Joined: Jul 2002
Posts: 526
Likes: 0
From: USA
coolant leak?
at first i thought it was a crack in the timing cover...
but i found out that there is a plate that is on the back of the water pump which is only on the 460 motor. pulled thatand resealed it and now its dry as a bone, and it gave me a chanse to paint my water pump. :-)
1977 F250 460
C6 Hedman Headers
Dual 40 series
edelbrock performer
holley 4150
msd 6a and blaster coil
but i found out that there is a plate that is on the back of the water pump which is only on the 460 motor. pulled thatand resealed it and now its dry as a bone, and it gave me a chanse to paint my water pump. :-)
1977 F250 460
C6 Hedman Headers
Dual 40 series
edelbrock performer
holley 4150
msd 6a and blaster coil
