1969 Ford Mustang cooling

255

Asked by Jul 15, 2008 at 05:25 PM about the 1969 Ford Mustang

Question type: Maintenance & Repair

I have a 69 mustang with a 302 2 bbl C4 auto, I can't keep it cool, i have a 160 degree thermostat, a 3 core crossflow radiater, a 6 blade belt driven fan and an electric fan. When i start it up as long as i don't have to sit at a red light it will stay at 160 degrees but if i do stop at a red light then it will get up to about 200 degrees or more. Could it be that i don't have a fan shroud?

2 Answers

8,165

If it's cool while your moving, but over heats if you sit in one place I would guess that it is your fan system. You're likely right on the money with your thoughts about a fan shroud. If you can find a good twin electric fan with shroud that will match well with your radiator, then I would go that route...I personally think it looks cleaner on the engine bay. On a side note, you may want a slightly hotter thermostat... remember your oil temperature has to reach above 200 degree or it will slowly get contaminated by water. Also you need to be careful what oil you're buying. A lot of newer oils have drastically reduced the ZDDP, on account of newer engines don't have the same pressure on the CAMs as older engines used to have. Without it your engine will wear out your cam faster.

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65

Yes no fan shroud could cause that. The fan is just blowing air every which way when your at a stop, the shroud would channel the air into the rad.

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