Freeze plug problems

[COPO427]

When it’s time to drain everything, remember to remove both water bolts from the lower heads cause there’s a sh!t load of coolant in the block.

[X66 714]

Originally Posted by COPO427

When it’s time to drain everything, remember to remove both water bolts from the lower heads cause there’s a sh!t load of coolant in the block.

I got one of the 1/4" pipe plugs out on the starter side to drain the water from above the pan rail. Looks like I will need to remove some of the eng mount on the driver's side to pull that plug. It has the later design safety bracket in case of eng lift. that's in the way.

I checked all the ground to make sure they were actually grounds. I did notice where I painted the starter assm & then scraped some of the paint off where it bolts to the block, it did leave a slight step from the paint maybe not allowing it to sit flat against the block. I hit both surfaces with a Roloc just to make sure I had a good ground at that point....thanks, Joe

[83hurstguy]

Tap water is typically loaded with dissolved solids that will boost conductivity. As a result, you can create a galvanic corrosion cell within the cooling system.

The stainless freeze plugs referenced in here (US Tool) have been great for us. Stainless has a lot more strength and is stiffer than brass so they tend to stay in place better as well.

[X66 714]

I'm still getting alot of garbage when I drain the block so I have a question.

Could I do any damage by pulling the thermostat, blocking off the water pump inlet & heater hose connections & filling the block with clean evap-o-rust?

Thanks again, Joe

[83hurstguy]

Originally Posted by X66 714

I'm still getting alot of garbage when I drain the block so I have a question.

Could I do any damage by pulling the thermostat, blocking off the water pump inlet & heater hose connections & filling the block with clean evap-o-rust?

Thanks again, Joe

Evaporust actually makes a cooling system cleaner:
https://www.evapo-rust.com/thermocure/

Not sure the difference between thermocure and the regular Evaporust product, but I don't see the regular product causing an issue. Guessing the thermocure has some changes so it can be used as temporary engine coolant.