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Old 09-18-2011, 06:04 PM   #1
wwotr
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Re: Cooling system issue....

Quote:
Originally Posted by landsurvey1 View Post
Yeah, it seems to run about the same down the freeway or in town. You will be really happy with the shroud and new clutch fan, I have the same set up on mine. I bet it will make a world of difference. You might want to consider using Water Wetter or some similar brand like Royal Purple when you change the fluid as others have mentioned. As hot as it gets here, I run a mixture of 30% antifreeze, 1 bottle of Water Wetter and the rest water.
I was under the impression, (from some Members here),
that products like "Water Wetter", were not compatible with Coolant.
I havent researched it, but rather just going on what was mentioned here.
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Old 09-16-2011, 05:06 PM   #2
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Re: Cooling system issue....

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Originally Posted by chevytruckluver View Post
I would run a 180 deg thermostat if it were me. If you think about this when the water is circulating through the engine it is stopped inlarge part by the t-stat until the t-stat reaches its setpoint in your case 160 then it opens and then water moves through the radiator. When the t-stat is closed and water is stopped in the engine it is also stopped in the radiator allowing the air moving through the radiator to cool the water back down. If you run a cooler t-stat the water wont stay in the radiator long enough to cool back down. just my .02
good luck with it
ummm...not really...this is copied from Stewart Warner FAQ

"A common misconception is that if coolant flows too quickly through the system, that it will not have time to cool properly. However the cooling system is a closed loop, so if you are keeping the coolant in the radiator longer to allow it to cool, you are also allowing it to stay in the engine longer, which increases coolant temperatures. Coolant in the engine will actually boil away from critical heat areas within the cooling system if not forced through the cooling system at a sufficiently high velocity. This situation is a common cause of so-called "hot spots", which can lead to failures."

Basically moving coolant is better than idle coolant....and a higher velocity is better than slow moving...thats why we have high flow water pumps if slow or idle were better we should all use stock flow pumps ...even race cars
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Old 09-18-2011, 04:01 PM   #3
GASoline71
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Re: Cooling system issue....

Roger... Is your 350 still equipped witht the stock TBI from 1994? If it is... you'll need a 195 degree t-stat.

Gary
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My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread.

The Rebuild of Creeping Death after the wreck

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I would never rebuild a 305.
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Originally Posted by prostreetC-10 View Post
I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
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Originally Posted by Marv D View Post
Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
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Its cheaper to listen to advice given when you ask for help than it is to ignore everyone and wait for carnage.
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Old 09-18-2011, 07:51 PM   #4
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Re: Cooling system issue....

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Originally Posted by GASoline71 View Post
Roger... Is your 350 still equipped witht the stock TBI from 1994? If it is... you'll need a 195 degree t-stat.

Gary
Gary,
I believe my Truck does NOT have a TBI...(Traumatic Brain Injury).

That being said...what "TBI" are YOU refering to?
I'm not that "Up" on engines after 86 or so.
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Old 09-18-2011, 07:53 PM   #5
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Re: Cooling system issue....

TBI = Throttle Body Injection
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Old 09-18-2011, 08:01 PM   #6
wwotr
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Re: Cooling system issue....

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Originally Posted by leddzepp View Post
TBI = Throttle Body Injection
Uhm.....OK I'm Carburated with and Edelbrock Carb.
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Old 09-18-2011, 09:42 PM   #7
GASoline71
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Re: Cooling system issue....

Then go with a 180 degree t-stat for a carbed 1st gen small block.

At least that's what i use with no probs.

Traumatic Brain Injury!! That was good mang!

Gary
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My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread.

The Rebuild of Creeping Death after the wreck

Quote:
Originally Posted by LONGHAIR View Post
I would never rebuild a 305.
Quote:
Originally Posted by prostreetC-10 View Post
I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
Quote:
Originally Posted by Marv D View Post
Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
Quote:
Originally Posted by cableguy0 View Post
Its cheaper to listen to advice given when you ask for help than it is to ignore everyone and wait for carnage.
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Old 09-18-2011, 10:05 PM   #8
RUSHNBOBO
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Re: Cooling system issue....

Quote:
Originally Posted by GASoline71 View Post
Then go with a 180 degree t-stat for a carbed 1st gen small block.

At least that's what i use with no probs.

Traumatic Brain Injury!! That was good mang!

Gary
yup, 180 will give you good heater output and the best all around performance in gen 1 (early......pre TBI) sbc
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Old 09-19-2011, 09:04 AM   #9
Andy4639
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Wink Re: Cooling system issue....

Just another thought here to.

I have ran into this before. The stock gauge in our model trucks may not give a good reading if the temp senor is for that motor and not our year motors. You may want to check that. When I put my TPI motor in the truck it read high all the time. I had to get the sendor out of the old block and install it. It reads just like it should have then.
This may have been covered.
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