The Ford Barn

sid carey · 08-07-2022, 01:27 PM

My ‘40 convertible has a large radiator cap, which I assume is correct. My problem with it is that my pressure checker does not have an adapter to fit the neck. Does someone make the adapter? Sid

Ken/Alabama · 08-07-2022, 01:58 PM

If you have a stock radiator you’ll not be able to pressure test unless you block off the overflow tube.

aussie merc · 08-07-2022, 04:11 PM

dont know which tester you have but check with them often the adaptors will only work with their tester only

Automotive Stud · 08-10-2022, 10:23 AM

As Ken said, the stock radiator isn't a pressurized system. If you are chasing a leak I wouldn't try to add more than 3 or 4 psi or you risk damaging the tanks that weren't designed to hold pressure.

sid carey · 08-12-2022, 10:07 PM

Okay thanks guys

rotorwrench · 08-13-2022, 09:46 AM

Sponsored Links (Register now to hide all advertisements)

Ford was in development for the pressurized systems but didn't get there for a few more years. Some later aftermarket radiators may have a bung for a pressure cap but the originals didn't.

08-07-2022, 01:27 PM	#1
sid carey Member Join Date: Jan 2014 Location: mississippi Posts: 50	40 radiator My ‘40 convertible has a large radiator cap, which I assume is correct. My problem with it is that my pressure checker does not have an adapter to fit the neck. Does someone make the adapter? Sid

08-07-2022, 01:58 PM	#2
Ken/Alabama Senior Member Join Date: May 2010 Location: Alabama Posts: 3,254	Re: 40 radiator If you have a stock radiator you’ll not be able to pressure test unless you block off the overflow tube.

08-07-2022, 04:11 PM	#3
aussie merc Senior Member Join Date: Sep 2016 Location: sydney australia Posts: 1,029	Re: 40 radiator dont know which tester you have but check with them often the adaptors will only work with their tester only

08-10-2022, 10:23 AM	#4
Automotive Stud Senior Member Join Date: May 2010 Location: New Jersey Posts: 832	Re: 40 radiator As Ken said, the stock radiator isn't a pressurized system. If you are chasing a leak I wouldn't try to add more than 3 or 4 psi or you risk damaging the tanks that weren't designed to hold pressure.

08-12-2022, 10:07 PM	#5
sid carey Member Join Date: Jan 2014 Location: mississippi Posts: 50	Re: 40 radiator Okay thanks guys

08-13-2022, 09:46 AM	#6
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,416	Re: 40 radiator Sponsored Links (Register now to hide all advertisements) Ford was in development for the pressurized systems but didn't get there for a few more years. Some later aftermarket radiators may have a bung for a pressure cap but the originals didn't.

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