inline 6 cooling
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Joined: Sep 2006
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From: Phoenix
inline 6 cooling
84 Bronco, 6 cylinder 300:
I touched on this in one of my other posts, but probably need to clarify it more in a separate thread. When I pulled my engine apart I noticed that the cooling ports on the intake side of the engine in both the head and block dead ended. In other words, the ports didn't match up. Since a cause of broken rings can be heat and stress as well as insufficient ring gap clearance, I am wondering if the coolant has enough circulation to do the job as intended. The flow of the coolant is from the pump back around the cylinders to the rear of the engine and then up through two main ports and forward through the head and out to the radiator. My questions are: 1...Is someone familiar enough with the layout of the head and block to tell me if this blockage of coolant on one side of the engine is as it should be? 2...If I were to open up the ports on the valve side of the engine to each other, would it screw up an engineered design? 3...I noticed that the ports on the opposite side of the engine were closed off by the head gasket with only a small hole in the head gasket, is this the original Ford design? 4...Would opening up any of these ports decrease the efficiency of the cooling system? Thanks....mr.john60
I touched on this in one of my other posts, but probably need to clarify it more in a separate thread. When I pulled my engine apart I noticed that the cooling ports on the intake side of the engine in both the head and block dead ended. In other words, the ports didn't match up. Since a cause of broken rings can be heat and stress as well as insufficient ring gap clearance, I am wondering if the coolant has enough circulation to do the job as intended. The flow of the coolant is from the pump back around the cylinders to the rear of the engine and then up through two main ports and forward through the head and out to the radiator. My questions are: 1...Is someone familiar enough with the layout of the head and block to tell me if this blockage of coolant on one side of the engine is as it should be? 2...If I were to open up the ports on the valve side of the engine to each other, would it screw up an engineered design? 3...I noticed that the ports on the opposite side of the engine were closed off by the head gasket with only a small hole in the head gasket, is this the original Ford design? 4...Would opening up any of these ports decrease the efficiency of the cooling system? Thanks....mr.john60
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Joined: Sep 2002
Posts: 9,182
Likes: 12
From: Gateway to the West
I have a an EFI 300 in the garage... I can take a look at it but I am not familiar enough with the engine to be certain. You might ask the guys in the inline 6 forum about this issue.
