Overheating Again!

[toolboxchev]

So I got the idea from a website that wants to sell you services at 100 bucks or more.

I thought to myself HA, I know a better way. Today's engine coolant flush chemicals are just not up to snuff, Also the way the way it is taught to do this just did not match my standards of Done Right. Especially in an older engine like most of us have.

I found the 2 pieces at a place well known locally here for having what you need and at a reasonable price. Here is the info:

http://wichitafeedandhardware.com/ I am in no way working for them, just a good customer

Here are the pics of what you need. One is 3/4 NPT with a female 1/4 NPT. The other is a schrader valve with 1/4 NPT. Also you will need a 1/4 NPT plug which can be removed from the bottom of the block.

I plan on flushing my system one more time before winter just to make sure everything is up to snuff.

Using the shock of a controlled air injection will break crud loose in the block. I would not recommend this until you check you radiator cap to make sure its working good before doing this. Or otherwise crack one of the bottom of the block plugs loose! I mean real loose.

First use the 3/4 adapter plug while flushing the motor with your standard water tee provided in the Prestone Flush kit with the water on. Use short blasts of air to loosen debris in the system. You may wish to disconnect you heater core. It will fit in the top of most stock water pumps.

Then plug the water pump back off and install the 1/4 adapter in the bottem of the block plug hole and repeat. Repeat each side, you then may wish to repeat an air blast session in the water pump forcing out any remaining crud.

Pretty slick in my book for less than 10 bucks, plus the cost of a Prestone flush kit!

[cleszkie]

The problem I see with this set up is that the rubber o-rings in the shrader valve are not designed to hold up to sustained 200 degree water exposure. They will inevitably deteriorate in short time and create a leak in the system. If they don't leak coolant, they will definitely let air into the system when it cools down and a vacuum is formed.

[toolboxchev]

Good point, one that I did not think about. Although I was not intended to leave these in the block.

I guess the schrader valve I will pull out after a good flush and put a plug in the hole!