64c20crewcab
New Member
Take your time, but HURRY UP!!!
Posts: 32
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Post by 64c20crewcab on Aug 7, 2008 11:49:51 GMT -7
Here is whats going on: Driving around during the day stock guage hits mid way if not hot. At night it does the same but takes a bit longer. On the freeway - forget about it. The needle get to just shy of being pegged to the right in the red. It may be the guage so I have guage from 66 cluster I'll try out later today. Also have a hand held laser thermometer that I'll use at the theromstat housing to get a better reading.
Here what I'm running: 1980's Goodwrench 350, TH350, Eaton rear w/t4.56 on 32" tall tires - we all know that is still tachs pretty high
When I bought the truck it had a chrome , have round shroud/shied over the fan that mounted through the radiator. Flex fan was and still mounted to the pump on a 1.5" spacer.
Here is what I've replaced/done in recent past: full shroud, pump, rad & hoses, 160 thermostat, housing and temp sensor on the housing, flushed the system and added new coolant @ 50/50 mix, burped the system.
When I replaced the shroud with a repop for a 64-66, the flex fan now sits all the way inside the shroud. Is this correct? I've read info long ago that the fan should be sitting flush on the pully and not on the spacer. Possibly sitting 50/50 inside outside of the shroud. Did I read / understand this correctly. Can anyone here please confirm or advise here?
Thanks Guys!
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Post by Scooter3 on Aug 7, 2008 13:19:13 GMT -7
Did it start overheating when you put your new shroud on, or when your fan got halfway inside the shroud?
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zor
New Member
Posts: 45
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Post by zor on Aug 8, 2008 12:00:58 GMT -7
your fan should be 50/50 in the shroud. also you should put a temp gage on there that reads in numbers, not just H vs. C. This will tell you what temp it is actually at, because what is the red hand setting for the stock gage? I don't know. What if anything did you change immediatly before it started running hotter? Did run OK before you changed the parts and then got hotter immediatly after the new parts were installed? If so I would question the shroud first since everything else was pretty much the same just new. Also you mentioned new radiator, Is it a V8 radiator, is it new, is it a stock replacement or something aftermarket? If it started getting hot immediatly after the new radiator was installed I would question that too.
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