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Re: Troubleshooting temp issue [Re: cal_gecko] #1544161 12/07/13 01:05 AM 12/07/13 01:05 AM
Joined: Aug 2003 Posts: 12,589 Sacramento, CA cal_gecko OP I Live Here
cal_gecko OP I Live Here Joined: Aug 2003 Posts: 12,589 Sacramento, CA	3 7949880-IMG_5185.jpg (63 downloads)

Re: Troubleshooting temp issue [Re: cal_gecko] #1544162 12/07/13 01:07 AM 12/07/13 01:07 AM
Joined: Aug 2003 Posts: 12,589 Sacramento, CA cal_gecko OP I Live Here
cal_gecko OP I Live Here Joined: Aug 2003 Posts: 12,589 Sacramento, CA	Tomorrow I'll do some further checking and temp measurements per your advice (bottom of radiator versus top, checking the lower hose (I did put a spring in it last year when I realized it was collapsing when it ran), and I may just pull the thermostat out to see how warm it runs without one for a bit... And to answer the question about how I was driving it.. I was doing about 50mph on long open stretches, with outside air around 35 degrees F.

Re: Troubleshooting temp issue [Re: cal_gecko] #1544163 12/07/13 01:29 AM 12/07/13 01:29 AM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: And to answer the question about how I was driving it.. I was doing about 50mph on long open stretches, with outside air around 35 degrees F. My , the radiator (assuming the stat is opening all the way). live every 24 hour block of time like it's your last day on earth

Re: Troubleshooting temp issue [Re: RapidRobert] #1544164 12/07/13 01:31 AM 12/07/13 01:31 AM
Joined: Aug 2003 Posts: 12,589 Sacramento, CA cal_gecko OP I Live Here
cal_gecko OP I Live Here Joined: Aug 2003 Posts: 12,589 Sacramento, CA	Just checked timing.. about 25 degrees advance at idle, and 42 at about 2800-3000 rpm

Re: Troubleshooting temp issue [Re: cal_gecko] #1544165 12/07/13 02:01 AM 12/07/13 02:01 AM
Joined: Nov 2007 Posts: 21,814 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,814 Kirkland, Washington	Your timing numbers are high. Back them off to 18 at idle, which will net you 35 total, which is much more reasonable. Don't know if that will help the overheating much though. :twocents I am assuming we are talking about mechanical advance only.........and now that I think about it I think my assumption is wrong.......

Re: Troubleshooting temp issue [Re: Pacnorthcuda] #1544166 12/07/13 03:11 AM 12/07/13 03:11 AM
Joined: Aug 2003 Posts: 12,291 Kent, Wa 340SHORTY Truck Nut
340SHORTY Truck Nut Joined: Aug 2003 Posts: 12,291 Kent, Wa	Those plugs look like its running real lean..You want them to be slightly tan.. I am truckless..

Re: Troubleshooting temp issue [Re: 340SHORTY] #1544167 12/07/13 05:10 AM 12/07/13 05:10 AM
Joined: Aug 2003 Posts: 12,589 Sacramento, CA cal_gecko OP I Live Here
cal_gecko OP I Live Here Joined: Aug 2003 Posts: 12,589 Sacramento, CA	realized that when I was checking timing, I didn't disconnect the vacuum advance from the distributor. I'll do some research on how to make the mixture richer on the carb (Edelbrock Performer 600cfm) Which sucks, because the car's getting 8 mpg as it is.. I'm guessing if I go richer, it'll get worse!

Re: Troubleshooting temp issue [Re: cal_gecko] #1544168 12/07/13 09:58 AM 12/07/13 09:58 AM
Joined: Sep 2007 Posts: 14,889 up yours Supercuda About to go away
Supercuda About to go away Joined: Sep 2007 Posts: 14,889 up yours	Quote: realized that when I was checking timing, I didn't disconnect the vacuum advance from the distributor. Which sucks, because the car's getting 8 mpg as it is.. I'm guessing if I go richer, it'll get worse! Why do you have vacuum advance at idle? LEan misfire can cause poor mileage too. They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.

Re: Troubleshooting temp issue [Re: Supercuda] #1544169 12/07/13 10:51 AM 12/07/13 10:51 AM
Joined: Jan 2007 Posts: 7,664 IN A ahy master
ahy master A Joined: Jan 2007 Posts: 7,664 IN	If its overheating at 35 F with decent fan something is seriously out of whack. As a useful and low cost diagnostic, suggest you remove the T stat and run it. As mentioned above, run it with the cap off for a while and watch for coolant flow in the top tank. If removing the stat improves temps it is a bad stat. If you don't see coolant flow either the radiator is seriously blocked or the water pump is fubar. Its rare, but the blades can rust off the pump. If you suspect the radiator, you can pull it and get it checked out at a rad shop. Also, mild "at home" flush of the block and radiator wouldn't hurt. I rig up an adapter to go from garden hose to radiator hose. 1 1/4" or 1 1/2" PVC pipe matches rad hose diameter pretty well. With stat removed, rig it up to flush the block or radiator.

Re: Troubleshooting temp issue [Re: cal_gecko] #1544170 12/07/13 11:36 AM 12/07/13 11:36 AM
Joined: Aug 2006 Posts: 1,589 My Garage / Museum idrivevintage Chrysler Plant
idrivevintage Chrysler Plant Joined: Aug 2006 Posts: 1,589 My Garage / Museum	Quote: sorry guys.. I misreported on the type of fan... it's an OEM fan .. and it's in the shroud, so it should be pulling plenty of air through. Is it a clutch type or a direct blade? Also I believe you want the blades of the fan to sit about 3/4 of the way into the shroud...is that where yours are

Re: Troubleshooting temp issue [Re: idrivevintage] #1544171 12/07/13 12:53 PM 12/07/13 12:53 PM
Joined: Feb 2004 Posts: 1,012 indiana M mcmopars super stock
mcmopars super stock M Joined: Feb 2004 Posts: 1,012 indiana	where are you at with this?let us know

Re: Troubleshooting temp issue [Re: mcmopars] #1544172 12/07/13 01:24 PM 12/07/13 01:24 PM
Joined: Aug 2003 Posts: 12,589 Sacramento, CA cal_gecko OP I Live Here
cal_gecko OP I Live Here Joined: Aug 2003 Posts: 12,589 Sacramento, CA	I'll pull the thermostat out today (crap, I don't know if I have any gaskets sitting around... might have to run to the store to get one) and test that... for reference, here's a top view of the rad/fan/shround.. it's a fixed blade fan. 7950258-radiator.jpg (83 downloads)

Re: Troubleshooting temp issue [Re: cal_gecko] #1544173 12/07/13 01:30 PM 12/07/13 01:30 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	It appears that the fan needs to be spaced farther into the shroud which is needed at lower speeds but is a non issue for it to be overheating at 50MPH. Something else is going on live every 24 hour block of time like it's your last day on earth

Re: Troubleshooting temp issue [Re: RapidRobert] #1544174 12/07/13 02:06 PM 12/07/13 02:06 PM
Joined: Aug 2003 Posts: 12,589 Sacramento, CA cal_gecko OP I Live Here
cal_gecko OP I Live Here Joined: Aug 2003 Posts: 12,589 Sacramento, CA	Quote: It appears that the fan needs to be spaced farther into the shroud which is needed at lower speeds but is a non issue for it to be overheating at 50MPH. Something else is going on I'm suspecting a blockage in the radiator. I'll check the thermostat today.. and if that doesn't work, I'll disconnect the hoses on the radiator, and see if I can run water through it with the garden hose. I guess that should tell me if there's a blockage. It does sound like I may be running lean too .. which is surprising because the exhaust is pretty pungent .. but I'll need to look up how to richen the mixture on the Edelbrock carb.

Re: Troubleshooting temp issue [Re: cal_gecko] #1544175 12/07/13 02:14 PM 12/07/13 02:14 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: It does sound like I may be running lean too .. which is surprising because the exhaust is pretty pungent .. but I'll need to look up how to richen the mixture on the Edelbrock carb. Actually a lean misfire can make it smell gassy as the mixture does not ignite in that cyl or random cyls & goes out the tailpipe. Take off the metering rod caps & remove the metering rod piston/rod assys & put something under the spring(s) to block them up then replace the assys & take her out for a spin & you'll be on the "power" step which is way richer live every 24 hour block of time like it's your last day on earth

Re: Troubleshooting temp issue [Re: RapidRobert] #1544176 12/07/13 03:13 PM 12/07/13 03:13 PM
Joined: Aug 2003 Posts: 12,589 Sacramento, CA cal_gecko OP I Live Here
cal_gecko OP I Live Here Joined: Aug 2003 Posts: 12,589 Sacramento, CA	Quote: Quote: It does sound like I may be running lean too .. which is surprising because the exhaust is pretty pungent .. but I'll need to look up how to richen the mixture on the Edelbrock carb. Actually a lean misfire can make it smell gassy as the mixture does not ignite in that cyl or random cyls & goes out the tailpipe. Take off the metering rod caps & remove the metering rod piston/rod assys & put something under the spring(s) to block them up then replace the assys & take her out for a spin & you'll be on the "power" step which is way richer I'll take a look and see if I can visualize what you're talking about a bit better. Not sure what "something" would be that would be appropriate to put under the springs to block them up .. .i'll see ..

Re: Troubleshooting temp issue [Re: cal_gecko] #1544177 12/07/13 03:58 PM 12/07/13 03:58 PM
Joined: Jan 2003 Posts: 6,224 JERSEY RJS master
RJS master Joined: Jan 2003 Posts: 6,224 JERSEY	Yes I would push that Fan in another 1/2 inch also but not the problem you are describing. Question is that a 2 row radiator or 3?? Ron

Re: Troubleshooting temp issue [Re: RJS] #1544178 12/07/13 05:16 PM 12/07/13 05:16 PM
Joined: Aug 2003 Posts: 12,589 Sacramento, CA cal_gecko OP I Live Here
cal_gecko OP I Live Here Joined: Aug 2003 Posts: 12,589 Sacramento, CA	did a little more digging today.. removed the thermostat and ran it ... saw no water movement in the top of the radiator. Here's a shot of the inside.. I'm guessing this is my problem 7950553-1477695_10152082719356675_1626214831_n.jpg (74 downloads)

Re: Troubleshooting temp issue [Re: cal_gecko] #1544179 12/07/13 05:22 PM 12/07/13 05:22 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: Here's a shot of the inside.. I'm guessing this is my problem , now we know live every 24 hour block of time like it's your last day on earth

Re: Troubleshooting temp issue [Re: cal_gecko] #1544180 12/07/13 06:01 PM 12/07/13 06:01 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	Never mind, wow ...I guess you don't look in there much? Last edited by Challenger 1; 12/07/13 09:42 PM.

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