Cooling Off

[RobertKB]

I had the ‘51 Dodge D39 business coupe out for a run today. It was a pretty hot day and when I stopped, it was time for cooling off. Motor is still a big stiff after the rebuild and runs a tiny bit warm. Although not necessary, I put the hood up to help her cool down a bit more quickly once the engine was shut off. For me, I opened the trunk lid as the trunk floor is the perfect height to sit on and have a cool one. Both cooled off, we continued on our way a half hour later. 
 

 

[Worden18]

Just curious Robert, what temp thermostat are you using?

[RobertKB]

160. I’ve always had good luck with all my old Mopars running 160. 

[Doug&Deb]

Running hot isn’t always bad. My Coronet runs between 185-200 all summer with no issues. 6000 miles on rebuilt engine. 

[RobertKB]

I’m guessing mine runs around there or just a bit cooler. Recored radiator as well. 
 

My ‘48 and ‘53 both with original, or at least not recored, radiators tend to run a bit cooler. Both engines have a lot of miles but run great. I get the impression rebuilds tend to run a bit hotter until well broken in. Just my impression. 

[Doug&Deb]

Burns the sludge out.

[Booger]

Everything as it should be. 200 is within range

[Booger]

Is there a 5 blade after market fan out there? that would be cool (stop it)

[Sniper]

Biggest issue is room, too aggressive a pitch on the blades will get them closer to hitting things.  Chrysler used to put a 5 bladed clutch fan setup on the Diplomats adn the like.  But that will not fit our rides.