Heater core cover question

[Marco Perez]

Hi everyone once again

I had a couple questions after finding a leak in my heater core... well atleast its leaking from the delete plate (cover plate in picture) now my question is if it remove the cover for a visual inspection, do i need to put some type of sealant on the delete plate trim to seal it ? Or does it just get retightened with the bolts and thats it?

Thanks for any help it is much appreciated!

Ps: i plan on giving the cover a good cleaning has some type of grease on top. Car is a work in progress....

 

[493 Mike]

I would bet it has some type of body caulk for sealant.
Mike

 

[snakeoil24]

Yes you should use a thin strip of dumb dumb

 

[Marco Perez]

I tried my daughters play dough but it still leaks ‍

 

[ckessel]

Butyl rubber sealant. Can be had in strips or as caulking gun tube. 3M and others make either. Stays gooey and never hardens up.