63 Dodge Dart, now let me see;)

Hi, I'm back!

I got out there, it wouldn't start, found out I had unplugged the HEI when loosening the dist hold down! grrrr

Started it, reset timing to 8 before TDC, the sat in the car, 77 degrees outside temp. however, sat in the car with AC running and took a while for the temp to get up but eventually got up to 200 towards the end of that time, with the AC off and idle up to 1500, the temp starts coming down.
I started thinking about the heat riser (HR), in the pic, I don't know which way is open, but in the pic was after running for a while, If I rev the engine, it goes counter clockwise and comes right back down when letting the rev off, but won't stay ccw when holding say 2k rpm. So would counter clockwise be opening the HR? IN the pic, and trying to turn it, it won't turn clockwise anymore than it is, but easily turns ccw. It turns easily by hand.

View attachment 1716480229

If ccw is going against the spring tension, I would say that is opening the heat riser for straight through flow.

Wire it open... and watch the engine temp come down. :)

Heat riser for cold weather applications. Have removed them on all the mopars I have done. Don't want that flap blocking the hot exhaust gasses from getting out.

Don't want it heating up the intake manifolds either... fair weather game.


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