Engine temp running a bit warm

[cbrown5385]

Afternoon everyone 86 k10 with a carb swapped 350 runs a bit warm any thoughts of where I should start aside from coolant level? It did have the over flow plugged off with no overflow tank so I’ve since added a tank and opened up the overflow. Hasn’t gone above 230 on the gauge and when I’m driving it drops to about 215-220 first pick is getting in it after putting fuel in it only sat for maybe 5 minuets. Second is during driving.

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[Bextreme04]

Afternoon everyone 86 k10 with a carb swapped 350 runs a bit warm any thoughts of where I should start aside from coolant level? It did have the over flow plugged off with no overflow tank so I’ve since added a tank and opened up the overflow. Hasn’t gone above 230 on the gauge and when I’m driving it drops to about 215-220 first pick is getting in it after putting fuel in it only sat for maybe 5 minuets. Second is during driving.

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First thing I would do is verify that there is even a problem. Get yourself a temp gun and see what the temp is at the thermostat housing. OEM should be holding close to 195 at the T-stat housing and it should be consistently getting colder as you work your way over to the inlet side of the radiator, outlet side of the radiator, and then finally the water pump. Mine shows it down near 130 or colder at the water pump.

 

[Rickf]

Whenever I have an odd reading on a factory gauge, I'll use a second gauge to verify. For oil pressure "T" in a mechanical gauge, for engine temp an IR temp gun, or drop an old fashion ether gauge down the radiator fill, if one exists.