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About Roger J.M. Warrington
Expertise
I can help you with most standard type things from 1955 chevys up to around 1975 (1975)>> chevys in differnt areas. engine work heads-cams-trannys-drive train-brakes-some elect. dos and donts. PS UP TO 1975 !! !!!!!!!!!!! I will try with any others after that date. state up to 1975 but I still get 2006-007 etc. I guess you do not read this far ! !

Experience
All i can remember growing up is working on cars and making them loud and fast , and when i started to make money i would sink all of it into my cars so i could get them to go faster and look great. what else is there !I would love a challange to trouble shoot, as it is fun finding what is wrong when all others can not .ON the older cars not past 1975s , etc. so please I will try to help with the newer cars but do not grade me bad if I can not help your 2006 car.etc.
 
   

You are here:  Experts > Shopping > Cars > Chevrolet > Intake Manifold Heat Level

Chevrolet - Intake Manifold Heat Level


Expert: Roger J.M. Warrington - 9/18/2005

Question
Roger, You helped me previously regarding my 66 Chevy Impala 283.  I did get the 2 bbl Rochester carb and it runs great.  However, I noticed that the intake manifold (painted Chevy orange) is discoloring (almost getting near black) in the areas right across from the carb.  The same thing happened with the old carb.  I was just wondering if this is a problem I need to address or put it down to the paint just can't take the heat in those areas.  At cruising speed I stay at 180 deg.  Idle it goes up to and stays at 200 degrees.  Any ideas?  Jer  

Answer
HI Jerry;
        First it is great that the 2bbl is working well for you and as far as the discollering it is the paint or some fuel could also be making the paint wear off, I would not worry about it, as far as the temp , do you have a thermastadt, change it to a 160. and how about the fan is it close to the rad. or far away, do you have a shroud ? and a clutch fan is good but a flex fan is even better.     and if the fan is to far from the rad. it will not cool it down as much.and w/o a shrowd you can also loose cooling. but as long as you are not overheating you are fine.
hope I helped you.
Roger, take care

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