Got my '65 289 up and running after a complete engine rebuild the other day. I was setting the timing and adjusting the carb and noticed the engine temp was rising very slowly. So, I shut it off and the temp spiked and the radiator started to hiss. The hose running into the water pump literally blew off the water pump and sprayed coolant everywhere. What caused this? Just before starting the car I had added two gallons of that premixed coolant from Prestone. The local auto parts shop said the car should take about 1 and 7/8 gallons and I added two. I added two because it wasn't filling up in the radiator up to "within an inch" of the top as the shop manual says it should be. I have what I think is a reproduction of the original radiator, so it should have the same capacity, right? Anyone know what caused this? Sorry for such a long question. -Have at you, StuckInOK
StuckInOK
I could not get mine to fill completely, it was totally empty and I had just over a gallon left after it filled up to the neck in the rad. I then loosened the temp send just a little, it acted like a bleeder screw, and allowed the trapped air to escape. Problem solved.
By the way, the shop manual recommends that when filling the rad, you should disconnect the heater hose at the water pump to allow the air to escape and reconnect once it starts filling up.Hello my pilot friend. How's OKIE today? I was born in Sayre MANY years ago and also served my time in the USAF as well.
Regarding your radiator. When you fill them after an engine rebuild, the inside of the engine takes time to fill up because there are lots of air pockets that must be allowed to escape. Sometimes this takes several runnings to heat and cool to eliminate all the air pockets.
The best way I have found is to run the engine with the radiator cap off at first, once the thermostate opens the water will start circulating in the engine itself and push the air pockets out through the radiator. ALlowing more room to add coolant as it runs. Try this for a short time and then cap the radiator to allow the engine to finish warming up all the way.
You probably blew the hose off due to the excess air built up in the system with no place to go. It may also be an indication that you need a new radiator cap as well. A cheap easy fix. Replace them often.
I hope this helps you some.
Your friend,
"Doc" the moneymanager
Regarding your radiator. When you fill them after an engine rebuild, the inside of the engine takes time to fill up because there are lots of air pockets that must be allowed to escape. Sometimes this takes several runnings to heat and cool to eliminate all the air pockets.
The best way I have found is to run the engine with the radiator cap off at first, once the thermostate opens the water will start circulating in the engine itself and push the air pockets out through the radiator. ALlowing more room to add coolant as it runs. Try this for a short time and then cap the radiator to allow the engine to finish warming up all the way.
You probably blew the hose off due to the excess air built up in the system with no place to go. It may also be an indication that you need a new radiator cap as well. A cheap easy fix. Replace them often.
I hope this helps you some.
Your friend,
"Doc" the moneymanager
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