Coolant Leak

[leigh]

I had the coolant tank off of my 62 SII to replace the thermostat. But now coolant is leaking out and I can't for the life of me get it to stop - have had it on and off 3 times to make sure the gasket is properly situated. Are there any tricks or hints? Should I be using sealant?

 

[hartmandm]

From where is the coolant leaking?

 

[leigh]

It's leaking from the area where the gasket is located between the coolant take and the thermstat stem

 

[Acollin]

Is it leaking out while pressurized or with the car not running?
Do you have the equipment to pressurize the tank with the car not running and check for cracking?
That said, I believe cooling system gasket like sealant.
Good luck

 

[leigh]

Thanks! That's great advice....it only leaks once the motor is on and it's pressurized. I'll see what I have....I think all my tools are for creating a vacuum, not the other way around.

 

[hartmandm]

Did you reuse the gasket? Probably need a new gasket. Also, I use Hylomar sealant on the cooling system joints on my series V.

Mike

 

[Acollin]

Often local auto parts stores might rent or even lend tools. This is exactly the kind of tool they might lend/rent. Also, the tools are fairly common so a local garage might be able to throw a loaner your way. I was able to borrow the tool you need from my neighbor who is a retired mechanic( came with advice).