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Tom Grz · 02-08-2024, 08:38 AM

I'm rebuilding a '30 pickup that hasn't run in many years. I had to remove the top tank to make some repairs and I'm glad I did because I found 3 or 4 tubes completely blocked with a greasy sludge (I assume from years of over-greasing the water pump). I started with brake cleaner and an electricians fish tape to break thru the clogs, followed by one of those metal hanging file folder things and more cleaner to open it up more. Soaked it over night in simple green and finished off with a 1/8" straw cleaning brush. Point is...I don't know how effective vinegar is on those greasy clogs, if you happen to have any.

02-08-2024, 08:38 AM	#5
Tom Grz Member Join Date: Apr 2023 Location: Mahwah NJ Posts: 31	Re: Cleaning the radiator I'm rebuilding a '30 pickup that hasn't run in many years. I had to remove the top tank to make some repairs and I'm glad I did because I found 3 or 4 tubes completely blocked with a greasy sludge (I assume from years of over-greasing the water pump). I started with brake cleaner and an electricians fish tape to break thru the clogs, followed by one of those metal hanging file folder things and more cleaner to open it up more. Soaked it over night in simple green and finished off with a 1/8" straw cleaning brush. Point is...I don't know how effective vinegar is on those greasy clogs, if you happen to have any.