radiator coolant overflow reservior? - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

70ChevyLongbed · 11-21-2003, 05:28 PM

Quote:

Originally posted by dtlilly
Thanks, I will too. It should look more classy than a dirty coolant jug

Don,

Would my brother-in-law's Tall Boy can of Bud Ice zip tied to the radiator be classy, or classic. :p

Catfishking · 11-21-2003, 06:46 PM

I don't know why you all bother with a resevior on these old trucks. They don't have a 2 way pressure valve in the radiator cap like the new ones do (or none at all). If your truck is spewing fluid, then the truck is either overheating and causing too much pressure, or you need to buy a new radiator cap to pressurize the cooling system correctly.

bouncytruck · 11-21-2003, 06:52 PM

You can get the fancy aluminum or stainless overflow tanks on e-bay. Here is one with a buy it now for $22.
http://cgi.ebay.com/ebaymotors/ws/eB...tem=2442873174

bpmcgee · 11-21-2003, 07:06 PM

Quote:

Originally posted by Catfishking
I don't know why you all bother with a resevior on these old trucks. They don't have a 2 way pressure valve in the radiator cap like the new ones do (or none at all). If your truck is spewing fluid, then the truck is either overheating and causing too much pressure, or you need to buy a new radiator cap to pressurize the cooling system correctly.

Catfishking,

When you replace that radiator cap, buy one from a '75 instead, and THEN you can use a coolant recovery tank! Hmm. What a great idea!!

Brian

P.S. Great way to make a first impression

BtnkBndt · 11-21-2003, 07:15 PM

And I like being able to check my coolant level at a glance and with no brow burns.

Andy4639 · 11-21-2003, 09:49 PM

dtlilly,
My water jug compared to this! Now that is class.

WRMZ71 · 11-23-2003, 07:29 PM

I put one in my 71 and out of an old s-10 pickup sitting in the trees. All it does is catch the overflow. It will not suck it back up because i do not have a closed system. You have to get certain types of caps for your radiator and your overflow tank. The overflow tank should not vent until it gets full and reallly hot!! This way it will hold pressure build up and when the engine is off that built up pressure will push the fluid back into the radiator.

Longhorn Man · 11-24-2003, 01:01 AM

Actually the tank can be vented and it'll still work properly. The vacume created by the contracting cooling in the rad is what sucks it back in.

jorgensensc · 11-24-2003, 03:10 AM

Racedvl,
Does your radiator suck the fluid back in from the resevoir? I have that same vent radiator cap and am going to get a washer resevoir this next weekend and am curious if it will work. Thanks!!!
Shawn

Andy4639 · 11-24-2003, 03:30 AM

If you get a 15lbs. cap and hook up a overflow tank it will work, it don't matter what kind of tank or cap it has on it as long as the hose from the radiator is under the level of coolant in the jug. That's why I choose a tank out of the 80's model monty carlo, the hose connects in the bottom of the jug and it stays under the fluid level. If you have a jug that the hose runs through the top it has to stay covered up with coolant at all times for the suction to work.

jorgensensc · 11-24-2003, 03:40 AM

Andy4639,
Thanks for clearing that up!!! Should the resevoir be mounted below the highest point of the radiator to aide in suction??

Andy4639 · 11-24-2003, 04:46 AM

I would put it either level or below the cap on the radiator. If you look at the picture I posted earlier in this thread you will see that the hose is below the cap. I would at the least have it level. I know that the jug is dirty, but it's my driver I can't have it clean everytime I need a picture of something.

jorgensensc · 11-24-2003, 04:57 AM

Thanks Andy4639!!!

tom hand · 11-24-2003, 11:01 AM

Quote:

Originally posted by Catfishking
I don't know why you all bother with a resevior on these old trucks. They don't have a 2 way pressure valve in the radiator cap like the new ones do (or none at all). If your truck is spewing fluid, then the truck is either overheating and causing too much pressure, or you need to buy a new radiator cap to pressurize the cooling system correctly.

The advantage to running a Expansion (Overflow) Tank is you can run the radiator completely full....it is much more efficient without any air in it. Where the tank is mounted doesn't matter if you have the correct cap....it will suck it back in.

http://www.mycarwizard.com/autoshop/cooling1.html

69ChevySB · 11-24-2003, 03:00 PM

my reservoir was cracked so i took it off when i first got it...ive always drove without it on yeah it spits on the ground but i just put more water in it every now and then. ive drove the truck atleast 250 miles one way to mexico in the summer and it never got hot on me....also drove it about 200-250 miles up north in the winter time

....that was before i had the turbo400 in it...i had a little 307/3speed on the floor standard...then i switched to 350/t400 dont know if i could go that far again my radiator is only a 2 core but its brand new and so is my water pump, what do you guys think? will my truck get hot with the 350/th400 setup faster opposed to the 307/3spd? thanks

BLACK AND BLUE 67-72 · 11-24-2003, 04:55 PM

Yes, it will warm up quicker. All automatics run hotter than standards, because of the cooler lines going to the radiator and the hot transmission fluid flowing through it.

11-21-2003, 06:52 PM	#28
bouncytruck SKINNY TIRES RULE! Join Date: Sep 2001 Location: Bothell, WA Posts: 11,038	You can get the fancy aluminum or stainless overflow tanks on e-bay. Here is one with a buy it now for $22. http://cgi.ebay.com/ebaymotors/ws/eB...tem=2442873174 __________________ bouncytruck 1972 K5 The Hauler 1994 K1500 Suburban The Daily2010 Kia Soul Wife's Ride2014 Fiat 500L

11-21-2003, 09:49 PM	#31
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Classey dtlilly, My water jug compared to this! Now that is class. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

11-24-2003, 03:10 AM	#34
jorgensensc Registered User Join Date: Jul 2003 Location: Cypress, Tx Posts: 4,005	Racedvl, Does your radiator suck the fluid back in from the resevoir? I have that same vent radiator cap and am going to get a washer resevoir this next weekend and am curious if it will work. Thanks!!! Shawn __________________ 1972 C20 Suburban- Big Blue Betty '56 Chevy Bel Air Sedan- Frame up Restoration -What would you attempt to achieve if you knew you could not fail?- -I Refuse To Tiptoe Through Life, Only To Arrive Safely At Death's Door- R.I.P. EAST SIDE LOW LIFE

11-24-2003, 03:30 AM	#35
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Cold to hot / Hot to Cold If you get a 15lbs. cap and hook up a overflow tank it will work, it don't matter what kind of tank or cap it has on it as long as the hose from the radiator is under the level of coolant in the jug. That's why I choose a tank out of the 80's model monty carlo, the hose connects in the bottom of the jug and it stays under the fluid level. If you have a jug that the hose runs through the top it has to stay covered up with coolant at all times for the suction to work. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

11-24-2003, 03:40 AM	#36
jorgensensc Registered User Join Date: Jul 2003 Location: Cypress, Tx Posts: 4,005	Andy4639, Thanks for clearing that up!!! Should the resevoir be mounted below the highest point of the radiator to aide in suction?? __________________ 1972 C20 Suburban- Big Blue Betty '56 Chevy Bel Air Sedan- Frame up Restoration -What would you attempt to achieve if you knew you could not fail?- -I Refuse To Tiptoe Through Life, Only To Arrive Safely At Death's Door- R.I.P. EAST SIDE LOW LIFE

11-21-2003, 06:46 PM	#27
Catfishking Registered User Join Date: Nov 2003 Location: Nacogdoches, TX Posts: 6	I don't know why you all bother with a resevior on these old trucks. They don't have a 2 way pressure valve in the radiator cap like the new ones do (or none at all). If your truck is spewing fluid, then the truck is either overheating and causing too much pressure, or you need to buy a new radiator cap to pressurize the cooling system correctly.

11-21-2003, 07:15 PM	#30
BtnkBndt Pennyless Fool Join Date: Oct 2003 Location: Forney,Tx Posts: 439	And I like being able to check my coolant level at a glance and with no brow burns.

11-23-2003, 07:29 PM	#32
WRMZ71 Cause the Chicks DIG IT!! Join Date: Nov 2003 Location: Beaufort SC Posts: 509	I put one in my 71 and out of an old s-10 pickup sitting in the trees. All it does is catch the overflow. It will not suck it back up because i do not have a closed system. You have to get certain types of caps for your radiator and your overflow tank. The overflow tank should not vent until it gets full and reallly hot!! This way it will hold pressure build up and when the engine is off that built up pressure will push the fluid back into the radiator.

11-24-2003, 01:01 AM	#33
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Actually the tank can be vented and it'll still work properly. The vacume created by the contracting cooling in the rad is what sucks it back in.

11-24-2003, 04:46 AM	#37
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Level I would put it either level or below the cap on the radiator. If you look at the picture I posted earlier in this thread you will see that the hose is below the cap. I would at the least have it level. I know that the jug is dirty, but it's my driver I can't have it clean everytime I need a picture of something. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

11-24-2003, 04:57 AM	#38
jorgensensc Registered User Join Date: Jul 2003 Location: Cypress, Tx Posts: 4,005	Thanks Andy4639!!! __________________ 1972 C20 Suburban- Big Blue Betty '56 Chevy Bel Air Sedan- Frame up Restoration -What would you attempt to achieve if you knew you could not fail?- -I Refuse To Tiptoe Through Life, Only To Arrive Safely At Death's Door- R.I.P. EAST SIDE LOW LIFE

11-24-2003, 03:00 PM	#40
69ChevySB dropped69 Join Date: Jan 2003 Location: Grand Canyon State Posts: 120	my reservoir was cracked so i took it off when i first got it...ive always drove without it on yeah it spits on the ground but i just put more water in it every now and then. ive drove the truck atleast 250 miles one way to mexico in the summer and it never got hot on me....also drove it about 200-250 miles up north in the winter time ....that was before i had the turbo400 in it...i had a little 307/3speed on the floor standard...then i switched to 350/t400 dont know if i could go that far again my radiator is only a 2 core but its brand new and so is my water pump, what do you guys think? will my truck get hot with the 350/th400 setup faster opposed to the 307/3spd? thanks __________________ "And yet I find, yet I find...repeating in my head. If I can't be my own, I feel better dead." -Layne Staley (R.I.P)

11-24-2003, 04:55 PM	#41
BLACK AND BLUE 67-72 Firefighter Join Date: Feb 2001 Location: Yellville, Ar, USA Posts: 1,943	Yes, it will warm up quicker. All automatics run hotter than standards, because of the cooler lines going to the radiator and the hot transmission fluid flowing through it. __________________ '72 Chevy SWB 350 Auto '67 GMC LWB 350 4 speed '70 Chevy 4x4 Stepside 350 Auto Yellville, Ar. USA

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