New Upgrades and cooling issues

• leaks in system; air in system
• correct shroud (fan 1/2 in/1/2 out unless 'flex', that = 3/4 in)
• coolant - mix%, additives, age, cleanliness;
• water pump - operation, condition; cavitation;
• heater core - leaks, condition, it’s fan on/off during servicing;
• block - water passages;
• hoses - collapse, leaks;
• thermostat - condition, temp rating;
• radiator (sz, # rows, clean?, construction, materials - I like ol style copper)
• radiator cap - pressure rating, condition, design;
• fan (blades, design, clutch)
• flush system last yr. or 2?
• do not run over lean as I think U said U were earlier

Mustang5L5 said:

FYI, I just ran my engine.

Edelbrock high flow pump, stock pullies, 20 year old 3-core brass radiator , motorcraft 192 tstat, fresh coolant.

Runs about 195-198 degrees. Stock guage shows about the R on normal.

Before I ran a 180 tstat and the stock gauge would show down around the A. It ran about 185-188 degrees on my autometer gauge.

I’m using this to verify my actual temp. So degree difference in engine temp resulting in a decent amount of needle sweep on the dash guage. I bet if I let it creep up to 205-210 it would be right near the top. I’m happy with it around 200ish. Also, like I said the stock guage just isn’t accurate at all.

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KRUISR said:

Looks like a stock hold down tab (cleaned REALLY good) with an ARP bolt.

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Mustang5L5 said:

Stock hold down that I cleaned up and painted. I threw the stock bolt away and bought an ARP stainless bolt to replace it.

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