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larry harding · 10-23-2020, 07:09 AM

when i first built my 31 P U it would overheat. i wound up removing the radiator and sweating off the top tank. i had the radiator laying on a table with the top end over a large plastic container with a sump pump pump rigged to circulate water and cleaner backward thru it. i spent most of a day rodding out the tubes with a strip of 16 gage metal, one would open then stop back up. eventually all tubes flowed good. i resoldered the tank back on and no more overheating, a lot of work but well worth the effort. not many radiator shops left open and i am a hard core do it yourselfer.

10-23-2020, 07:09 AM	#8
larry harding Senior Member Join Date: Sep 2015 Location: western n.c. Posts: 393	Re: Does your Model A overheat ? when i first built my 31 P U it would overheat. i wound up removing the radiator and sweating off the top tank. i had the radiator laying on a table with the top end over a large plastic container with a sump pump pump rigged to circulate water and cleaner backward thru it. i spent most of a day rodding out the tubes with a strip of 16 gage metal, one would open then stop back up. eventually all tubes flowed good. i resoldered the tank back on and no more overheating, a lot of work but well worth the effort. not many radiator shops left open and i am a hard core do it yourselfer.