The Ford Barn

Nlbloch · 05-15-2018, 06:54 PM

I have a thermostat-style radiator cap that became badly corroded. I have soaked it in CLR and most of the corrosion dissolved, but I still have some crust that just won't disappear.

Worse yet, the hinged top won't open -- I can only access the radiator by taking the entire cap off.

Any suggestions on how to remove the remaining crud, and how to separate the top/bottom parts of the cap?

chap52 · 05-16-2018, 07:31 AM

I would try soaking it in Apple Cider Vinegar for a couple of days.

JBill · 05-16-2018, 07:49 AM

White vinegar.

ryanheacox · 05-16-2018, 07:52 AM

Sponsored Links (Register now to hide all advertisements)

If you know anyone with an ultrasonic cleaner that would probably do the trick also

05-15-2018, 06:54 PM	#1
Nlbloch Member Join Date: Apr 2011 Posts: 57	stuck radiator cap I have a thermostat-style radiator cap that became badly corroded. I have soaked it in CLR and most of the corrosion dissolved, but I still have some crust that just won't disappear. Worse yet, the hinged top won't open -- I can only access the radiator by taking the entire cap off. Any suggestions on how to remove the remaining crud, and how to separate the top/bottom parts of the cap? Last edited by Nlbloch; 05-15-2018 at 07:04 PM. Reason: Add photos

05-16-2018, 07:31 AM	#2
chap52 Senior Member Join Date: Jun 2013 Location: Marana Arizona Posts: 1,632	Re: stuck radiator cap I would try soaking it in Apple Cider Vinegar for a couple of days.

05-16-2018, 07:49 AM	#3
JBill Senior Member Join Date: May 2010 Posts: 674	Re: stuck radiator cap White vinegar.

05-16-2018, 07:52 AM	#4
ryanheacox Senior Member Join Date: Apr 2013 Location: Northwest CT Posts: 1,051	Re: stuck radiator cap Sponsored Links (Register now to hide all advertisements) If you know anyone with an ultrasonic cleaner that would probably do the trick also

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