radiator overflow - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Hubscrub · 03-24-2010, 07:24 PM

has anyone put a overflow in there trucks? if so how and what did you use? i was thinking of mybe an 80's model where it bolts to the inner fender i really don't like just the hose running down to the bottom of the support and would like a bottle if i can thanks

Bpokey · 03-24-2010, 07:53 PM

I just walked through the local junkyard looking for anything that would work. 5$ later had a bottle out of a Toyota Landcruiser that I think will work. I love recycling!

cdowns · 03-24-2010, 08:13 PM

in order for the system to work properly you need to change the radiator cap

72gmcworker · 03-24-2010, 08:19 PM

I use a 1 gallon antifreeze jug zip tied in place ...nothin pretty but it works just fine.

**JJanzen** · 03-24-2010, 09:36 PM

I made my own using a one quart stainless drink bottle with a 3/8" brake line going to the bottom of the bottle. I drilled a 1/16" hole in the lid so it would fill and drain properly. I haven't used it yet so am not 100% sure its' right.

PowerPro · 03-25-2010, 09:31 AM

Quote:

Originally Posted by 72gmcworker

I use a 1 gallon antifreeze jug zip tied in place ...nothin pretty but it works just fine.

ROFL I did the same. I just cut a hole in the lid. If i find something better in a junk yard, i'll grab it, but... truck is still a work in progress.

hayhauler71 · 03-24-2010, 11:44 PM

http://www.summitracing.com/parts/SUM-G1473/ I used this one looks great and works great.

petey-pablo · 03-25-2010, 09:44 AM

Quote:

Originally Posted by hayhauler71

http://www.summitracing.com/parts/SUM-G1473/ I used this one looks great and works great.

I am useing this same one but I am not sure I like it. I would like something that would allow the coolant to be re sucked into the radiator. like my honda's coolant reservoir. Don't know maybe im wrong or can our trucks use the same system?

thepunisher · 03-25-2010, 10:13 AM

I bought a universal coolant overflow bucket from Napa, cost $7. Currently it's only zip tied to the radiator support, I'd like to find something nicer looking. I like the one from Summit because you can see how much coolant is in the overflow.

**425HP409** · 03-25-2010, 10:23 AM

I use the universal one from Napa, part no 730-4514, all the time for my own vehicles and my customers. It is white plastic and has mounting tabs to bolt it to the vehicle. You can see the coolant level thru it. Remember, when going to a coolant recovery system you must use a radiator cap with the rubber gasket where it seals to the top of the radiator neck.

68K30 · 03-25-2010, 10:31 AM

I have one from a late 70's early 80's Malibu or Caprice,I can't remember which, on my 68, it's bolted to the right inner fender, looks factory and works great.

**Stocker** · 03-25-2010, 11:23 AM

Quote:

Originally Posted by petey-pablo

I am useing this same one but I am not sure I like it. I would like something that would allow the coolant to be re sucked into the radiator. like my honda's coolant reservoir. Don't know maybe im wrong or can our trucks use the same system?

It will, as long as you change to a closed-system cap like cdowns said above.

petey-pablo · 03-26-2010, 02:50 AM

Quote:

Originally Posted by 425HP409

I use the universal one from Napa, part no 730-4514, all the time for my own vehicles and my customers. It is white plastic and has mounting tabs to bolt it to the vehicle. You can see the coolant level thru it. Remember, when going to a coolant recovery system you must use a radiator cap with the rubber gasket where it seals to the top of the radiator neck.

Quote:

Originally Posted by Stocker

It will, as long as you change to a closed-system cap like cdowns said above.

Sorry Hubscrub Im not trying to jack your thread just trying to gain some knowledge

.
What is the difference in the caps? How do I know what cap I have I thought they were all the same other than the lb's, My cap has a 16lb or a 17lb labeled on it?

cdowns · 03-26-2010, 06:22 AM

regular rad caps have ears on them to remove from rad closed system caps no ears mostly octagonal shaped

Hubscrub · 03-26-2010, 05:58 PM

Quote:

Originally Posted by petey-pablo

Sorry Hubscrub Im not trying to jack your thread just trying to gain some knowledge

.

no problem, i'll take all the knowledge i can get from here too

AirSpeed · 07-07-2010, 08:02 PM

Quote:

Originally Posted by petey-pablo

Sorry Hubscrub Im not trying to jack your thread just trying to gain some knowledge

.
What is the difference in the caps? How do I know what cap I have I thought they were all the same other than the lb's, My cap has a 16lb or a 17lb labeled on it?

You need a cap that allows the coolant to be sucked back into the radiator when it cools off, the cap will have a small steel disc type valve about the size of a dime on the inside that opens when negative pressure is in the radiator, they look like any other cap otherwise.

mrh33916 · 03-25-2010, 09:35 AM

I won't be using the windshield washer system on my '67 since I smoothed the firewall so I'm using the reservoir which is already on the radiator support for the overflow.

Here's a picture

Name: overflow tank.jpg
Views: 7510
Size: 66.4 KB

Name: overflow tank.jpg
Views: 7510
Size: 66.4 KB

Schwinn68 · 03-25-2010, 11:38 AM

Autozone has a similar set up too. It's less than 10.00 and comes with the hose and steel mounting bracket. I've got it on my truck and I just put one in my brothers 71 chevelle.

big_al_71 · 03-25-2010, 12:33 PM

I used a 13" polished stainless steel tank from the local speed shop....It looks great and it was not crazy expenside either,.you can see it on the drivers side it looks black because it is reflecting the inner fender...

hemihead · 03-26-2010, 05:58 PM

Can get these for about 25 bucks on ebay, thinking this the way I'll go as well.

Quote:

Originally Posted by big_al_71

I used a 13" polished stainless steel tank from the local speed shop....It looks great and it was not crazy expenside either,.you can see it on the drivers side it looks black because it is reflecting the inner fender...

capev86 · 03-26-2010, 07:07 PM

i bought a factory accessory catalog for 72 chevy trucks from jim carter truck parts and it lists a factory overflow bottle option for our trucks. right now i am using a universal kit my dad had in the attic. i screwed it to the flat vertical surface on the driver side next to the radiator. it hangs with a single stainless screw (drilled a small hole) and i ran a hose along the radiator support tucked under the top radiator brackets. the hose is pinched very slightly but it works great. the pic for the factory unit had the hose looping down and under the fan shroud.....weird.....

**68 Stepside** · 03-26-2010, 08:29 PM

I used to use an old 16 oz. Coors can

The radiator in the truck right now doesn't have a nipple on the fill neck, I need to get that fixed...

Jwill41 · 07-07-2010, 08:47 PM

universal from O'Reillys or Pep Boys works great for $10 or less

bigguy69 · 07-07-2010, 09:26 PM

diet dr.pepper bottle.finished the drink then installed it.

eagleuh1 · 07-07-2010, 09:45 PM

I like that stainless drink bottle idea. Fairly cheap and looks rugged. Check it every couple of weeks, level should be good. I might have to go this route.Yous guys come up with some great ideas.

03-24-2010, 07:24 PM	#1
Hubscrub Cruzin Join Date: Dec 2009 Location: on the road Posts: 2,835	radiator overflow has anyone put a overflow in there trucks? if so how and what did you use? i was thinking of mybe an 80's model where it bolts to the inner fender i really don't like just the hose running down to the bottom of the support and would like a bottle if i can thanks __________________ Lime Wife's 67https://www.google.com/url?sa=t&rct=...wZEMODaS2d94u8 Back to the Fifties 59 https://www.google.com/url?sa=t&rct=...NAeStpydfrcj_U Proverbs 3:5,6 "Thanks to the Interstate Highway System, it is now possible to travel across the country from coast to coast without seeing anything."Charles Kuralt In memory of our first baby daughter, daddy and mommy love you. Danica Grace 6/26/14 Last edited by Hubscrub; 03-24-2010 at 10:04 PM.

03-24-2010, 07:53 PM	#2
Bpokey Registered User Join Date: Sep 2008 Location: Belle Chasse LA Posts: 147	Re: radiator overflow I just walked through the local junkyard looking for anything that would work. 5$ later had a bottle out of a Toyota Landcruiser that I think will work. I love recycling!

03-24-2010, 08:13 PM	#3
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: radiator overflow in order for the system to work properly you need to change the radiator cap __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

03-24-2010, 08:19 PM	#4
72gmcworker Registered User Join Date: May 2006 Location: North x Northwest BC Posts: 62	Re: radiator overflow I use a 1 gallon antifreeze jug zip tied in place ...nothin pretty but it works just fine. __________________ '70 Pontiac Firebird Esprit '72 GMC 2500 '90 GMC V1500 '94 Dodge Cummins 2500 '02 Dodge 2500 Quad Cab Long Box 4x4 gasser

03-24-2010, 09:36 PM	#5
JJanzen Senior Member Join Date: Feb 2008 Location: Denver, CO Posts: 252	Re: radiator overflow I made my own using a one quart stainless drink bottle with a 3/8" brake line going to the bottom of the bottle. I drilled a 1/16" hole in the lid so it would fill and drain properly. I haven't used it yet so am not 100% sure its' right. Attached Images __________________ Blue72 Red72

03-24-2010, 11:44 PM	#7
hayhauler71 Registered User Join Date: Aug 2009 Location: St. Paul MN. Posts: 1,996	Re: radiator overflow http://www.summitracing.com/parts/SUM-G1473/ I used this one looks great and works great.

03-25-2010, 10:13 AM	#9
thepunisher Registered User Join Date: Aug 2009 Location: Rochester, MN Posts: 201	Re: radiator overflow I bought a universal coolant overflow bucket from Napa, cost $7. Currently it's only zip tied to the radiator support, I'd like to find something nicer looking. I like the one from Summit because you can see how much coolant is in the overflow. __________________ Blayne

03-25-2010, 10:23 AM	#10
425HP409 425hp409 Join Date: Oct 2008 Location: Prosper Texas Posts: 841	Re: radiator overflow I use the universal one from Napa, part no 730-4514, all the time for my own vehicles and my customers. It is white plastic and has mounting tabs to bolt it to the vehicle. You can see the coolant level thru it. Remember, when going to a coolant recovery system you must use a radiator cap with the rubber gasket where it seals to the top of the radiator neck. __________________ Charles 68 SWB, Dad bought new, now 396 & factory ac 64 Impala SS, 409 425HP, 4 speed AC 64 Bel Air Wagon, 400 Small Block 57 Bel Air all original 283 w/Factory Air 77 GMC Sprint, 454/425HP 67 Olds 442, all original 90 ZR1 Corvette Last edited by 425HP409; 03-25-2010 at 10:24 AM.

03-25-2010, 10:31 AM	#11
68K30 Registered User Join Date: May 2007 Location: Pennsylvania Posts: 99	Re: radiator overflow I have one from a late 70's early 80's Malibu or Caprice,I can't remember which, on my 68, it's bolted to the right inner fender, looks factory and works great.

03-26-2010, 06:22 AM	#14
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: radiator overflow regular rad caps have ears on them to remove from rad closed system caps no ears mostly octagonal shaped __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

03-25-2010, 09:35 AM	#17
mrh33916 Project '67 454 Join Date: Jan 2009 Location: Columbia SC Posts: 283	Re: radiator overflow I won't be using the windshield washer system on my '67 since I smoothed the firewall so I'm using the reservoir which is already on the radiator support for the overflow. Here's a picture Last edited by mrh33916; 03-27-2010 at 10:05 PM.

03-25-2010, 11:38 AM	#18
Schwinn68 Registered User Join Date: Mar 2010 Location: Minooka IL Posts: 191	Re: radiator overflow Autozone has a similar set up too. It's less than 10.00 and comes with the hose and steel mounting bracket. I've got it on my truck and I just put one in my brothers 71 chevelle. __________________ Ben _____________________________________ 1971 Chevy shortbed 350/4-speed sold 2005 Chevy Duramax EC/4x4 Local 597 Pipefitters certified TIG MIG and stick welder

03-25-2010, 12:33 PM	#19
big_al_71 Registered User Join Date: Jun 2008 Location: South Florida Posts: 11,375	Re: radiator overflow I used a 13" polished stainless steel tank from the local speed shop....It looks great and it was not crazy expenside either,.you can see it on the drivers side it looks black because it is reflecting the inner fender... Attached Images __________________ Get your facts first, and then you can distort them as much as you please!!!!!. Sylvester's build thread >>>http://67-72chevytrucks.com/vboard/s...ht=big+rebuild

03-26-2010, 07:07 PM	#21
capev86 Registered User Join Date: May 2009 Location: Eliot, Maine Posts: 1,314	Re: radiator overflow i bought a factory accessory catalog for 72 chevy trucks from jim carter truck parts and it lists a factory overflow bottle option for our trucks. right now i am using a universal kit my dad had in the attic. i screwed it to the flat vertical surface on the driver side next to the radiator. it hangs with a single stainless screw (drilled a small hole) and i ran a hose along the radiator support tucked under the top radiator brackets. the hose is pinched very slightly but it works great. the pic for the factory unit had the hose looping down and under the fan shroud.....weird.....

03-26-2010, 08:29 PM	#22
68 Stepside huh? Join Date: May 2000 Location: Washington, Illinois Posts: 5,692	Re: radiator overflow I used to use an old 16 oz. Coors can The radiator in the truck right now doesn't have a nipple on the fill neck, I need to get that fixed... __________________ Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay



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07-07-2010, 08:47 PM	#23
Jwill41 Registered User Join Date: Aug 2002 Location: Farmers Branch, Tx Posts: 1,009	Re: radiator overflow universal from O'Reillys or Pep Boys works great for $10 or less __________________ http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club

07-07-2010, 09:26 PM	#24
bigguy69 dazed and confused Join Date: Jul 2008 Location: marion nc Posts: 1,649	Re: radiator overflow diet dr.pepper bottle.finished the drink then installed it. __________________ members met: redbaron69, billsbowtie,nc67

07-07-2010, 09:45 PM	#25
eagleuh1 Registered User Join Date: Jul 2009 Location: Russellville, Arkansas Posts: 1,699	Re: radiator overflow I like that stainless drink bottle idea. Fairly cheap and looks rugged. Check it every couple of weeks, level should be good. I might have to go this route.Yous guys come up with some great ideas.

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