73-87 Chevy _ GMC Trucks > Engine/Drivetrain
86 temperature question
Harmon:
86 350 c10 thermostat replaced with 195
Truck began running hot, so I replaced fan clutch.
Truck now runs at 210 in Texas on hot days with AC blowing. Should I be concerned as it will go a little over 210 at times too.
VileZambonie:
How's the radiator?
Harmon:
I’ve had truck for 7-9 years and never had it replaced or worked on. No idea about the radiator history. I just got water temp sensor working and now very aware of its temp while running but not sure what’s “normal”
hatzie:
I wouldn't worry overmuch about 210°F operating temp in the Texas summer sun.
A coolant mixture of 50% distilled water and 50% ethylene glycol has a boiling point of 223°F.
A system with 15 psi radiator cap will add @ 45°F for a final boiling point of 268°F. IIRC from High School Physics this is a real world application of Boyles Gas Laws.
The 80's F-Bodies ran around 220°F in the summer and as long as the cooling system was kept up they didn't overheat. You have a much larger margin even if the pressure cap is not holding the full 15 or 16 psi.
Harmon:
Good information, I’ll just keep my eye on it and maybe one day get a new radiator if needed.
Navigation
[0] Message Index
[#] Next page
Go to full version