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Can't cool my 360 |
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amx39068
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Joined: Feb/21/2008 Location: Arizona Online Status: Offline Posts: 7229 |
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Topic: Can't cool my 360Posted: Jul/29/2010 at 8:59am |
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It is always a bit of a challenge to figure out what is causing a problem when there are multiple alternatives that can cause the same result. My red on red AMX that I sold to a fellow in Virginia had a brand new 390 that just would not run cool no matter what I did to it including new radiator cap, new flush and antifreeze, new thermostat. Turned out the nice pretty looking radiator was only boiled out and not rodded and when I finally threw in the towel and pulled it out it weighed way more than the exact same style radatior I replaced it with due to at least half the cores being plugged out of the space where you can see it.
Another car I replaced an enging on many years ago turned the headers a bright red when we fired it up and we were breaking in the cam due to the timing being off one tooth and advanve being wrong so still burning exhaust gasses were coming out the exhaust vavle on the Chebby engine we put in the Nova SS. Somewhere onlong the way in the swap over a nut must have also fallen in the intake opening before the carb was placed on and suddenly there was a clang and a big whoosh and that was the end of a cylinder head water jacket and one piston. $hit happens.
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Dan Curtis - AZ AMC collector quality Parts, Engines and Restorations - d_curtis@q.com
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Fweaky
AMC Fan
Joined: May/12/2010 Location: Col Heights, Va Online Status: Offline Posts: 21 |
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Posted: Jul/29/2010 at 8:30am |
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Well guys, I replaced the 180 *thermostat and drove the Jeep to work all week and the coolant temp has not gone over 190*. The weather has been a little cooler. (Its sad when 97* yesterday is considered cooler.) I actual drove to the store yesterday with flip flops on and didn't even burn my feet. I still have a little work to do to tweak the timing out but I believe the problem is solved. Thanks for taking the time to help out a jackleg mechanic, I really appreciate it.
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Nothing is foolproof to a sufficiently talented fool.
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Fweaky
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Joined: May/12/2010 Location: Col Heights, Va Online Status: Offline Posts: 21 |
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Posted: Jul/26/2010 at 10:48pm |
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Guys, today I got a chance to work on the timing a little. To make a long story short, I bumped the timing up from 10*to 17* and checked and found I still only had 30* of total advance at 3000 rpms. The springs seemed to be a little stiff so I swapped them out. I drove it around the neighborhood and it never went over 190* so I took it out on I-95 for a quick test run. I got to drive it about 10 miles and at 65 mph it was 95* out and the water temp never went above 200*! I ran out of time today so I will check tomorrow to see what the total timing is with the new springs. It was 10* cooler outside today than the last few days so I am hoping the thing will still be cooler when the temp goes back up. I will let you know.
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Nothing is foolproof to a sufficiently talented fool.
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slownugly
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Joined: Nov/23/2009 Location: PA Online Status: Offline Posts: 210 |
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Posted: Jul/26/2010 at 3:36pm |
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while your on the timing, makes sure the advance is hooked up to the right port on the carb. i believe on edelbrocks the higher fitting to the left is ported vaccum and the lower one on the right is manifold vaccum.
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90 notch mustang v8 t5
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poormansMACHINE
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Charter Member Joined: Jun/28/2007 Location: Shoemaker-Levy9 Online Status: Offline Posts: 12378 |
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Posted: Jul/25/2010 at 9:15pm |
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70@10% humidity is chilly.
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Fweaky
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Joined: May/12/2010 Location: Col Heights, Va Online Status: Offline Posts: 21 |
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Posted: Jul/25/2010 at 9:09pm |
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The only place I run when its 106 is to the fridge to get a cold beer!
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Nothing is foolproof to a sufficiently talented fool.
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amx39068
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Joined: Feb/21/2008 Location: Arizona Online Status: Offline Posts: 7229 |
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Posted: Jul/25/2010 at 9:00pm |
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Heck, my wife actually brings a sweater with her when we go out somewhere. She really likes the heat so we keep the house at around 84 on here side where she has her office and 83 on my side where I have my office and turn it "down" to 80 at night in our bedroom.
If we go into a store or restaurant where the temp is in the low 70s she freezes thus the sweater. Heck, she even goes out for a run in the afternoon when it is 106 or sometimes even higher!! I tell her every time she goes out I hope her life insurance is paid up Edited by amx39068 - Jul/25/2010 at 9:00pm |
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Dan Curtis - AZ AMC collector quality Parts, Engines and Restorations - d_curtis@q.com
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poormansMACHINE
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Posted: Jul/25/2010 at 7:20pm |
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Difference is that 100 in the dry regions is not uncomfortable.
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Fweaky
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Joined: May/12/2010 Location: Col Heights, Va Online Status: Offline Posts: 21 |
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Posted: Jul/25/2010 at 7:12pm |
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I feel like I live in Phoenix! It was 106* here yesterday. My wife was joking with me today when I left for work it was a chilly 103* and she asked me if I wanted a sweater to take with me.
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Nothing is foolproof to a sufficiently talented fool.
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amx39068
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Joined: Feb/21/2008 Location: Arizona Online Status: Offline Posts: 7229 |
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Posted: Jul/25/2010 at 6:47pm |
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Get either a timing tape or a roll back timing light and see where your total timing is when both mechanical and vacuum are all in. Lot's of people are abandoning the vacuum advance and just going with however much static advance is required to get you to a 36-38 degree total advance provided it doesn't ping. If it does ping, it will run still well at even 34 degrees total advance.
I run my SC/Rambler with with 36 degrees total advance to be compatible with our panther piss 91 octane oxygenated (city blend) premium pump gas with 24 degrees mechanical advance all in at 2000 RPM and it runs great although with 100+ plus temps every day here in Phoenix its been a while now since it's been out for a drive. Edited by amx39068 - Jul/25/2010 at 6:48pm |
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Dan Curtis - AZ AMC collector quality Parts, Engines and Restorations - d_curtis@q.com
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