Muddn7
Jr. Member
I just read the alum vs copper for overheating, but am still wondering about some other issues that might be specific to mine.
73' with an 83 351W. Mild RV, 600 holley, NP435, ps cooler, dual flow water pump, open to the rear hood scoop, 3 core radiator, new 13lb. cap, and a warn winch recessed into the grill. I DONOT have a shroud or fan on my waterpump. I have an electric fan infront of the radiator. Single fan and it is blowing correctly. I also installed a Mallory distributor and have my timing set at 10 deg. I have heard timing is an issue! I have had no results from running constant 6 degrees all the way to 15 degrees.
1. I have the Bronco sitting outside with a 25% antifreeze mix and 75% water. I keep it running until 5 minutes and see the guage flirting with 200 degrees. At this point, I see it drastically drop to 190, and hold for 5 more minutes (192 thermostat). Then it will start climbing all the way up to 220. I then just shut it down and let the electric fan cool it off. During this check I removed some water from the radiator, and looked for run over (showing that the water pump is working) and it is! Then an hour later, I had the Bronco cool, and drained the radiator.
2. Now I mix it 50/50, and found no differance. I did notice that after the drop in temp for thermostat opening it will climb more while bringing the rpm's up. So then I drained it again. My fan is either on or off, but during all of these checks it is constantly running. I am about to order a 160 stat, and I have an overflow bottle ordered also. Or atleast I am planning on ordering it!
Here comes the confusing part:
Its a 3 core radiator, with the PS cooler on the engine side. I have so many options. I think the radiator is just done, and the fan just isn't doing enough.
Options:
1. Buy another 3 Core, with the shroud and flex fan. I will relocate my PS cooler to be horizontal in front of the left wheel well, and buy an electric to cool it. The problem with that is maybe the winch will block the air (to the rad) and I will still be out hundreds of dollars and time.
2. This is where the experience comes in, tell me your thoughts?
73' with an 83 351W. Mild RV, 600 holley, NP435, ps cooler, dual flow water pump, open to the rear hood scoop, 3 core radiator, new 13lb. cap, and a warn winch recessed into the grill. I DONOT have a shroud or fan on my waterpump. I have an electric fan infront of the radiator. Single fan and it is blowing correctly. I also installed a Mallory distributor and have my timing set at 10 deg. I have heard timing is an issue! I have had no results from running constant 6 degrees all the way to 15 degrees.
1. I have the Bronco sitting outside with a 25% antifreeze mix and 75% water. I keep it running until 5 minutes and see the guage flirting with 200 degrees. At this point, I see it drastically drop to 190, and hold for 5 more minutes (192 thermostat). Then it will start climbing all the way up to 220. I then just shut it down and let the electric fan cool it off. During this check I removed some water from the radiator, and looked for run over (showing that the water pump is working) and it is! Then an hour later, I had the Bronco cool, and drained the radiator.
2. Now I mix it 50/50, and found no differance. I did notice that after the drop in temp for thermostat opening it will climb more while bringing the rpm's up. So then I drained it again. My fan is either on or off, but during all of these checks it is constantly running. I am about to order a 160 stat, and I have an overflow bottle ordered also. Or atleast I am planning on ordering it!
Here comes the confusing part:
Its a 3 core radiator, with the PS cooler on the engine side. I have so many options. I think the radiator is just done, and the fan just isn't doing enough.
Options:
1. Buy another 3 Core, with the shroud and flex fan. I will relocate my PS cooler to be horizontal in front of the left wheel well, and buy an electric to cool it. The problem with that is maybe the winch will block the air (to the rad) and I will still be out hundreds of dollars and time.
2. This is where the experience comes in, tell me your thoughts?