1959 Caddy series 60 cowl drain location

[s.wood]

I have a leak on the passenger side inside at firewall during rain. I heard it could be cowl drain plugged up. It's been parked outside a long time (cowl full of small leaves). Are there any suggestions.

[Clewisiii]

If it is like 61 there is no upper drain. The cowl drains into the body fender area then drains out at bottom. 

You may have a hole. Or a bad seal around the heater box. 

   

[s.wood]

Thank you. I'll check the seal.