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pick 07-08-2013 10:07 AM

Coolant drain
How do I do a complete coolant drain? My owners manuel sez "open radiator petcock and also remove drain plugs in the block". Drain plugs? Do they mean the Frost plugs? No way am I about to punch out the frost plugs.
This is my first thread as a new member. Thanx guys !!

Warlock III 07-08-2013 12:28 PM

On the bottom of the radiator there is a small valve pointing down with a white cap. I think yours gets turned clockwise as if to tighten it.

I'm not aware of any drains on the block, but maybe someone else does.

pick 07-08-2013 05:38 PM

It appeared to be too much work to use the radiator drain valve, as the splash pan has to be removed. I drained it by removing the lower radiator hose which was easy to access. I only was able to drain ten quarts. The other 3/4 's must be in the block. That's a nutty set-up and I bet the engineer who thought that one up is still giggling when he thinks back on that deal.

Your comments appreciated.

Warlock III 07-08-2013 05:56 PM

I usually unhook the lower hose as you did. I love antifreeze in my arm-pit :LOL:

tox 07-28-2013 04:45 AM

When I did my plenum I never drained the block. I just put a hose onto the radiator valve so it didn't go everywhere and opened it up. It takes a long time to drain out though. I never bothered to look for a block drain plug, but I did take a free shop vac and suck some coolant out. The freeze plugs are different. :)

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