CLR block but how to stop flash rust - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dcody619 · 03-09-2011, 04:22 PM

Hi there guys,
I am cleaning my rusty old 235 block with CLR and trying to give her life again. This is the second time I have had rust reflash back to the cylinder walls and top of block(where the head goes). So what can I apply so it doesn't come back a third time?

PS it's in a garage not outside.

blackdiesel · 03-09-2011, 04:53 PM

wipe it down with motor oil.

dcody619 · 03-09-2011, 11:23 PM

Quote:

Originally Posted by blackdiesel

wipe it down with motor oil.

Thanks, I'll give it a go in the morning.

03-09-2011, 04:22 PM	#1
dcody619 Registered User Join Date: Oct 2010 Location: San Diego, CA Posts: 39	CLR block but how to stop flash rust Hi there guys, I am cleaning my rusty old 235 block with CLR and trying to give her life again. This is the second time I have had rust reflash back to the cylinder walls and top of block(where the head goes). So what can I apply so it doesn't come back a third time? PS it's in a garage not outside.

03-09-2011, 04:53 PM	#2
blackdiesel Registered User Join Date: Jan 2009 Location: Omaha, Arkansas Posts: 929	Re: CLR block but how to stop flash rust wipe it down with motor oil. __________________ '57 Chevy Pickup '56 GMC LCF Cummins '38 Chrysler Royal '57 2wd change http://67-72chevytrucks.com/vboard/s...light=speedway



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