302 coolant problems
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Joined: Aug 2005
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302 coolant problems
I have just ran my rebuilt 302 for the first time and have a problem. After the motor runs a short while the temp gauge peaks all the way up. I have a new thermostat and water pump. I have heat blowing in the cab and all the radiator/water pump hoses are hot except the very bottom radiator hose, which is cold. I dont believe the coolant is circulating as it should. Any ideas as to what could cause this?
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Joined: May 2004
Posts: 12,170
Likes: 5
From: The hills of No. Calif.
Hi Craig, and welcome to FTE! Please take a moment to check out the guidlines. They contain important info you'll need when posting here:
https://www.ford-trucks.com/guidelines.html
I'm wondering if you might have gotten the wrong water pump. The pump for a serpentine belt drive rotates in the reverse direction from a v-belt driven pump. The hub is supposed to be different so that the pullys won't interchange, but I wouldn't rely on that.
Another possibilty is that the thermostat, even though new, isn't opening. You could take it out and check it in a pot of water on the stove.
https://www.ford-trucks.com/guidelines.html
I'm wondering if you might have gotten the wrong water pump. The pump for a serpentine belt drive rotates in the reverse direction from a v-belt driven pump. The hub is supposed to be different so that the pullys won't interchange, but I wouldn't rely on that.
Another possibilty is that the thermostat, even though new, isn't opening. You could take it out and check it in a pot of water on the stove.
