Coolant Overflow Bottle / Reservoir for 64 Cadillac Eldorado

[Michael Stinson]

Greetings Everyone.  I read a discussion thread about "radiator and related", covering coolant overflow.  Has anyone fitted an overflow reservoir / bottle to their 64 Cadillac?  Is there if a particular universal reservoir that can be fitted and attached to the radiator support housing or the passenger inner fender?  Then insert the overflow tube into the reservoir?   Thoughts / suggestions? 

I am monitoring coolant overflow and / or possible mixing with the oil.  If an overflow reservoir doesn't clear up the puddle on the garage floor, I will investigate a possible head gasket issue.  

[Russ Austin]

Several folks run the generic square coolant overflow tank. I see this in 99% of the uses. Amazon.com: Dorman 54002 Engine Coolant Recovery Kit Universal Fit ...

I mount mine on the RF inner fender right behind the radiator core support. 

[Michael Stinson]

Thanks Russ.  I'll check out the one you recommend. 

[Dennis P. DiBari]

Hi Michael,

    I have a 64 Series 62 and albeit it never had an overflow for coolant, I decided to install one for safe measure.  I found one that fit perfectly between the grill and the metal frame.  Only had to drill one hole (the other was there) and it works perfectly.  My email is [e-mail] and can give you a picture and details.

Dennis DiBari, Cottekill NY

[Dennis P. DiBari]

Michael,

I sent you an email with the information you requested.

Dennis DiBari

[Chris Codd]

I saw somebody do this a few years back. Thought it was a clever solution

[Dennis P. DiBari]

Hi Mike,

     Any luck with the coolant overflow tank we talked about for your Caddy?

Dennis DiBari

[Bill Wolf]

I used a Dorman 603-001 coolant reservoir, and you will see a 6-connection fuse block I mounted under it for power to the headlight relays and eventually a four way flasher power. I drilled thru 3/8" bolts as spacers for the reservoir. The reservoir looks crooked, but it is parallel to the engine. The hose across the reservoir is a currently unhooked a/c line.

[Phillip Hill]

Hey Bill

I was checking out your coolant reservoir looks good,You should have the positive battery terminal covered in the case of an accident it will cause a dead short which may lead to a fire and we don’t want that to happen.happy motoring 😀

[Bill Wolf]

Phillip,

Thank you for the suggestion, I should have thought of that myself. 

Bill