Quote:
Originally Posted by Bored&Stroked
Something that I'd try is to remove the shroud (as it would only help at idle or slow speed) and see what happens. This would be a pretty simple test and might provide you with some additional data points.
My 32 Cabriolet does not have a shroud - it has a stock (recored) radiator, stock fan in stock location, etc.. The engine has been bored to 3 5/16 and total CI is 284. The block was NOS (so no crud buildup). The engine can sit in traffic and not get hot (even on 90 degree days) and it always cools well going down the road (have been up to 75+ a few times).
I'd check the AFR first, re-jet the carb to get the cruise setting down a bit, then see what you get. Then (regardless of the AFR), I'd pull the shroud off and see what happens at both idle/slow speed and higher speed cruise.
Best of luck!
B&S
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B&S my shroud and fan are one unit so I won't be able to remove the shroud only. I don't have much of a problem at idle or slow speeds just at cruise. I reinstalled the lower grille pan today. I'm not expecting much from that, but I'd like to try it out so I can log the data as I go. The next step is to add the temp gauge in the water pump as Ronnieroadster recommended and see what I have there. Then I'll try bumping up the main jets from #69 to 70 and see what does.
As always, thanks for your input
Joe