Lt1 swap 1966 c10, Coolant Boiling in Recovery Tank. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gulfcoast66 · 06-09-2019, 09:07 PM

What's up fellas.. I did a Lt1 Swap in my 66 c10 and its Boiling water in the Recovery tank.. i have searched for hose routing on the forum and net.. I do Believe I got the hose routing Wrong going to the recovery tank... any Help would be Greatly appreciated..
The Donor car was a 1995 Buick Roadmaster my car for 8 years, No problems overheating or any other issues... Thanks

gulfcoast66 · 06-09-2019, 09:14 PM

Pics

gulfcoast66 · 06-13-2019, 10:49 AM

Ttt...

**Clyde65** · 06-13-2019, 12:26 PM

I don’t know if the LT1’s are like the Vortec engines but if those have a pocket of air in the cooling system it will do exactly what your experiencing.

Bigdav160 · 06-13-2019, 01:12 PM

I don't know about Roadmasters but Camaros had bleed screws on the thermostat housing

67 Burb · 06-17-2019, 01:09 AM

Are you sure it's really boiling? Or is it just bubbling air into the overflow tank?

Also, the Roadmaster LT1 has that air bleeder also.

gulfcoast66 · 06-24-2019, 07:50 AM

Just got in from my Hitch this Weekend, Yes it Boiling and Reservoir tank vibrating like a Horror Movie.. I know How to bleed the Air out the system.. Well my Roadmaster sit for about 9 months before I did the Swap, So this Weekend I noticed alot of build up in the recovery tank..
So I flushed the Coolant System with dishwasher soap Cascade (Yes It Worked Great). And as for my Heater Core Hoses I extended them out closer to the firewall and on the return line tied in the Recovery Tank... Fresh Antifreeze and bottle Water.. She's Running Cool Again..

gulfcoast66 · 06-24-2019, 08:49 AM

Waiting on My Lt4 vette Starter to come in.. so it can start up more than one time..... lol

06-09-2019, 09:07 PM	#1
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Lt1 swap 1966 c10, Coolant Boiling in Recovery Tank. What's up fellas.. I did a Lt1 Swap in my 66 c10 and its Boiling water in the Recovery tank.. i have searched for hose routing on the forum and net.. I do Believe I got the hose routing Wrong going to the recovery tank... any Help would be Greatly appreciated.. The Donor car was a 1995 Buick Roadmaster my car for 8 years, No problems overheating or any other issues... Thanks __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet

06-09-2019, 09:14 PM	#2
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Re: Lt1 swap 1966 c10, Coolant Boiling in Recovery Tank. Pics Attached Images __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet

06-13-2019, 10:49 AM	#3
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Re: Lt1 swap 1966 c10, Coolant Boiling in Recovery Tank. Ttt... __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet

06-13-2019, 12:26 PM	#4
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,539	Re: Lt1 swap 1966 c10, Coolant Boiling in Recovery Tank. I don’t know if the LT1’s are like the Vortec engines but if those have a pocket of air in the cooling system it will do exactly what your experiencing. __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

06-13-2019, 01:12 PM	#5
Bigdav160 Registered User Join Date: Apr 2011 Location: Klein Texas Posts: 3,852	Re: Lt1 swap 1966 c10, Coolant Boiling in Recovery Tank. I don't know about Roadmasters but Camaros had bleed screws on the thermostat housing __________________ My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe

06-17-2019, 01:09 AM	#6
67 Burb Registered User Join Date: Dec 2011 Location: Brandon, Manitoba, Canada Posts: 546	Re: Lt1 swap 1966 c10, Coolant Boiling in Recovery Tank. Are you sure it's really boiling? Or is it just bubbling air into the overflow tank? Also, the Roadmaster LT1 has that air bleeder also. __________________ Bob 1967 2wd Burb, 350/TH350, 3.73 posi

06-24-2019, 07:50 AM	#7
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Re: Lt1 swap 1966 c10, Coolant Boiling in Recovery Tank. Just got in from my Hitch this Weekend, Yes it Boiling and Reservoir tank vibrating like a Horror Movie.. I know How to bleed the Air out the system.. Well my Roadmaster sit for about 9 months before I did the Swap, So this Weekend I noticed alot of build up in the recovery tank.. So I flushed the Coolant System with dishwasher soap Cascade (Yes It Worked Great). And as for my Heater Core Hoses I extended them out closer to the firewall and on the return line tied in the Recovery Tank... Fresh Antifreeze and bottle Water.. She's Running Cool Again.. __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet

06-24-2019, 08:49 AM	#8
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Re: Lt1 swap 1966 c10, Coolant Boiling in Recovery Tank. Waiting on My Lt4 vette Starter to come in.. so it can start up more than one time..... lol __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet



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