[Chevelle-List] Fan clutch or not
My 71 Chevelle is overheating in this Bike Week traffic here in the nice warm sunny Daytona Beach. The temperature is going to 200 degrees in stop and go traffic. The engine block thermostat is working. It come on right at 180 degrees. I am thinking about changing the fan blade clutch. They come with and without the thermo unit on fan clutches. Should I get a fan clutch with or without the thermostat unit?? Keith Cooper [EMAIL PROTECTED]
Re: [Chevelle-List] Fan clutch or not
Keith, If 200 is all it gets to, I wouldn't be too worried about it. In stop and go, 200 is not bad at all, if it was creeping up to 215 on a regular basis I might think about changing something, if 200 is uncomfortable for you, try a lower thermostat first, a lot less expensive! Rocky --- Keith Cooper [EMAIL PROTECTED] wrote: My 71 Chevelle is overheating in this Bike Week traffic here in the nice warm sunny Daytona Beach. The temperature is going to 200 degrees in stop and go traffic. The engine block thermostat is working. It come on right at 180 degrees. I am thinking about changing the fan blade clutch. They come with and without the thermo unit on fan clutches. Should I get a fan clutch with or without the thermostat unit?? Keith Cooper [EMAIL PROTECTED] __ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/ - To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
Re: [Chevelle-List] Fan clutch or not
200 degrees is nothing to worry about. When it starts going over 215-220, then be worried. My overheating point is 230. My 454 runs at 185-190 in the heat humidity of NJ. It has a 180 stat and a stock 7 blade clutch fan with a stock 4 core radiator. My 350 in my 86 Cutlass is the same way. Tom
Re: [Chevelle-List] Fan clutch or not
If the stat is already a 180 which is may or may not be, I can only go down to a 160 right?? There is nothing between a 160 and a 180 stat is there?? I have been told that a 160 stat would never close and would alway be open which would cause it to over heat. The water would never stay in the radiator enough to cool? Keith - Original Message - From: rocky hill [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, March 06, 2003 3:40 PM Subject: Re: [Chevelle-List] Fan clutch or not Keith, If 200 is all it gets to, I wouldn't be too worried about it. In stop and go, 200 is not bad at all, if it was creeping up to 215 on a regular basis I might think about changing something, if 200 is uncomfortable for you, try a lower thermostat first, a lot less expensive! Rocky --- Keith Cooper [EMAIL PROTECTED] wrote: My 71 Chevelle is overheating in this Bike Week traffic here in the nice warm sunny Daytona Beach. The temperature is going to 200 degrees in stop and go traffic. The engine block thermostat is working. It come on right at 180 degrees. I am thinking about changing the fan blade clutch. They come with and without the thermo unit on fan clutches. Should I get a fan clutch with or without the thermostat unit?? Keith Cooper [EMAIL PROTECTED] __ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/ - To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED] - To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
Re: [Chevelle-List] Fan clutch or not
No Keith.. There is no step between 180 and 160 that I know of... And you right about the 160 just staying OPEN and not letting the Radiator. time to Cool the fluids... If infact.on a hot Day in Traffic and you only see 200 Deg. F.. Shezz I don't think I would do anthing.. Just make sure the Rad is clean and flowing free. the cluth on the fan ( if you have one) is operational.. and as a LAST resort and you car is not a 100% orginail type car.. get a High Flow Water Pump. like Steward of Weieand . This exchanges coolent faster thus closes the stat. faster = more time to STAY in the radiator... Wayne - Original Message - From: Keith Cooper [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, February 06, 2003 7:30 PM Subject: Re: [Chevelle-List] Fan clutch or not If the stat is already a 180 which is may or may not be, I can only go down to a 160 right?? There is nothing between a 160 and a 180 stat is there?? I have been told that a 160 stat would never close and would alway be open which would cause it to over heat. The water would never stay in the radiator enough to cool? Keith - Original Message - From: rocky hill [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, March 06, 2003 3:40 PM Subject: Re: [Chevelle-List] Fan clutch or not Keith, If 200 is all it gets to, I wouldn't be too worried about it. In stop and go, 200 is not bad at all, if it was creeping up to 215 on a regular basis I might think about changing something, if 200 is uncomfortable for you, try a lower thermostat first, a lot less expensive! Rocky --- Keith Cooper [EMAIL PROTECTED] wrote: My 71 Chevelle is overheating in this Bike Week traffic here in the nice warm sunny Daytona Beach. The temperature is going to 200 degrees in stop and go traffic. The engine block thermostat is working. It come on right at 180 degrees. I am thinking about changing the fan blade clutch. They come with and without the thermo unit on fan clutches. Should I get a fan clutch with or without the thermostat unit?? Keith Cooper [EMAIL PROTECTED] __ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/ - To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED] - To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED] - To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
RE: [Chevelle-List] Fan clutch or not
Check out http://auto.howstuffworks.com/cooling-system8.htm. There are a lot of urban legends, old wifes tales, etc. about what a thermostat does, how it does it, and why not elimitate one altogether (works sometimes but not a good idea). The thermostat's job is to HEAT the engine, not cool it. Once the DESIRED operating temp is reached (via the rating of the stat) it's simply taking up space (so-to-speak). You're correct about the temperatures available, for our cars there are 160, 180, and 192/195 (depending on who makes it). I put a PRC aluminum radiator in my 67 SS to help cool it down. With the standard 3-core w/shroud and 160 stat, it ran 180-190 on the highway. Stopping at a toll both, the temp would climb very quickly to 210-220 range. Obviously not enough air flow or coolant flow. With the aluminum radiator (same stat and no shroud) and Vintage Air (off) it runs 150-160 on the highway and slowly creeps up to 190-200 at a toll both. With the air on, it'll run 170-180 on the highway and creep up to 200-220 at a toll both. With the old raditor, it would take some time to cool back down. With the aluminum one, it cools back down to 'normal' temp in a few car lengths. If a 160 stat never closed (as you've been told), the coolant would continue to flow normally. Unless you've got a high pressure water pump, you're not going to be forcing the water through the radiator faster than it's capability to cool it. Naturally, if you don't have the capacity or capability to cool the water (system clogged, radiator too small, etc.) it's not going to run cool with any degree stat. Dale McIntosh TC Gold #92/ACES #1709 67SS/67 Elky Subject: Re: [Chevelle-List] Fan clutch or not If the stat is already a 180 which is may or may not be, I can only go down to a 160 right?? There is nothing between a 160 and a 180 stat is there?? I have been told that a 160 stat would never close and would alway be open which would cause it to over heat. The water would never stay in the radiator enough to cool? Keith - To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
Re: [Chevelle-List] Fan Clutch
Do you think I need to get the one with the thermal control which is like stock or the non-thermal control which will be engaged always? Keith - Original Message - From: Don Dupuis [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, November 04, 2002 11:03 PM Subject: Re: [Chevelle-List] Fan Clutch I like to use a clutch fan to reduce noise. I usually use a 5 blade fan. Never had a problem. It's important to either: a) have a shroud or b)make sure the fan is relatively close to the rad to get the pull affect of air through the cores. I would try a NEW clutch. Just my 2 cents worth. - To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED] - To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
Re: [Chevelle-List] Fan Clutch
Keith, I would go with the thermal. The non-thermal is constant but only turns at 60 to 70% of you water pump pulley speed. How about a bigger fan? 5 or 6 blade? You could also go with a bigger water pump. Bigger as in more coolant being pumped. Like a Flow-Kooler. There a several around that look stock. Nothing worse than having to worry about overheating in traffic oron acruise. Rich"66 MalibuACES # 5066 - Original Message - From: Keith Cooper To: [EMAIL PROTECTED] Sent: Monday, November 04, 2002 9:27 PM Subject: [Chevelle-List] Fan Clutch Well, the fan clutch off the 77 truck stopped the noise, but now the car overheats at idle. The car will run 200 degree if you let it sit at idle. When you get going down the road it drops to 185. I guess that I need to go buy a new fan clutch. I can buy a new clutch without or with the thermal control. Without the thermal control, the fan will run all the time. What do you think, with or without the thermal? Keith
Re: [Chevelle-List] Fan Clutch
I use the thermal ones. They come on when they need to (providing they are working properly), and release at highway speeds, saving fuel and preventing HP loss from a solid fan. - To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
[Chevelle-List] Fan Clutch
Well, the fan clutch off the 77 truck stopped the noise, but now the car overheats at idle. The car will run 200 degree if you let it sit at idle. When you get going down the road it drops to 185. I guess that I need to go buy a new fan clutch. I can buy a new clutch without or with the thermal control. Without the thermal control, the fan will run all the time. What do you think, with or without the thermal? Keith
Re: [Chevelle-List] Fan Clutch
I like to use a clutch fan to reduce noise. I usually use a 5 blade fan. Never had a problem. It's important to either: a) have a shroud or b)make sure the fan is relatively close to the rad to get the pull affect of air through the cores. I would try a NEW clutch. Just my 2 cents worth. - To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
