No radiator drain **** on my 1936

J

Joe Shell

Member
Today, while servicing the cooling system on my 39 Cabriolet, I discovered that there is no drain **** on the bottom of the radiator. Looks like the drain **** was remover and the bottom tank was patched. Had to remove lower radiator hose to drain old coolant, reinstall it and add Prestone Cleaner/flush. Will have to do the same thing tomorrow in order to add fresh antifreeze. A royal pain of a job.

I was thinking that there may be some sort of a drain **** that would attach to the lower radiator hose similar to the way heater hose attaches to the radiator hose.

Any ideas will be appreciated.


Thanks,


Joe
 
You may have two block plugs, just behind the water pumps...might be work getting them out, but re-install petcocks in place of the plugs, I grabbed the advice here, as my '42 PU has no drains on the radiator either.
 
Mike B said:
You may have two block plugs, just behind the water pumps...might be work getting them out, but re-install petcocks in place of the plugs, I grabbed the advice here, as my '42 PU has no drains on the radiator either.
Click to expand...


I put in the petcocks in my block on my 36 pickup with a 35 motor. no petcock on the radiator
 
Thanks Mike and Brendan, found the drain plugs you described. Sure is easier to drain radiator vs hose removal.

You guys saved me a lot of work.


Joe
 
You're welcome Joe., those plugs are probably brass and will twist easy...if they start to twist, you'll need to heat them up to expand (I used a propane bottle torch-was afraid of melting them with O/A)...then let them cool to the touch and begin rocking them back/forth to loosen them.

PS..just passing info given to me here:)
 
Thanks Mike. Block drain plugs turned easy. On my 36 it looks kind of tight to get petcocks in place of the plugs. May look better if I had the car up on a lift,

Joe
 
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