[elefantrider]

I think 190 is perfect.. what would you like to attain? What fan clutch are you using?
The factory lock-up type is best. They have a lock-up spring on the radiator side.

[GT182]

Remember? They came out of the factory back then with 190 thermostats in them, so 190 is good. That temp helps clean the moisture out of your engine and the reason 190 T-stats were used.

I'd say that above 210 is where you start to worry. 220 might be ok for a very short time, but no higher. I think Pontiacs can handle the heat a little better than Chevies or the other makes, but not for very long. I got vey worried when mine was reaching temps from 220 to 245. That's when I recored the radiator to an SLK core and started looking onto the water pump and divider plate issues. Luckily it's now just the pump and plate issue causing overheating.

One other thing... only use the green antifreeze. Red when it gets hot or sits long enough [forgot which it was] will start to gel up and plug things up. Charles' son found that out the hard way. Maybe it's ok in newer vehicles but I won't use it in my GTO.... again. Yeah, I made the mistake but caught it fast enough and got rid of it.

[Post Coupe]

Thanks everyone who replied to my thread! I have learned the following; I need to reposition the clutch fan (I didn't order the fan blade spacer when I purchased the fan with clutch) and the fan blade now just meets the shroud when it should be 2/3rds in the shroud, also I need to change fuel lines to steel ones, and I may have to get an electric fuel pump ( just had new mechanical one installed).
I forgot to mention on my original thread that I just had a remanufactured Carter 4 barrel carb installed, it is ideling perfectly (once warmed up) but the car doesn't have that initial quick burst of power like the old Carter carb had, any suggeations?
Steve

[Post Coupe]

Just realized why I didn't purchase a fan spacer because , Year One states that "do not use a fan spacer with a fan clutch because water pump failure will occur, as well as potential damage to the radiator and shroud".

Question, how can I move the fan 2/3 into the shroud without a fan spacer?

Thanks,
Steve

[Post Coupe]

Pictures of Fan W/Clutch.[ATTACH]



[/ATTACH]

[GT182]

Originally Posted by Post Coupe

Question, how can I move the fan 2/3 into the shroud without a fan spacer?

Thanks,
Steve

Steve you shouldn't have too. I've got the same set up and for mine and 3/4s of the fan blade is inside the shroud. Works fine. I got my fan and clutch from OPG but the shroud I got from them wasn't drilled to mount it on the radiator support. I sent it back and got one from Ames which was, and everything is ok. I don't think I'd want the fan too close in case something happens.... not that it would really make a difference anyway. I'd show you a photo of mine but it's all apart for a water pump change.

You could put the AC seal kit around between the radiator and core support. See page 229 in the Ames catalog. Charles just bought the masticated rubber to make his own.... cheaper too. You might be able to find the fasteners at Lowes, Home Depot, or at an auto parts store like NAPA, that has a Dorman parts section.