drain the block

[indybeck]

Another question from a :dr:. Are there block drains on our 6.5s? If not, what is the best way to drain them, aside from standing the truck on end? I am going to do some water pump work, and I plan on doing a full flush. I want to be able to get the flush and extra water out of the block.

 

[Rodd]

No need to worry about draining the block all the way. I just did mine a month ago. You can take a look at my thread on it. Missy posted how to flush the engine. Here's the link.
http://www.thetruckstop.us/forum/showthread.php?t=14338&highlight=rodd

 

[daustin]

The block drains on the 6.5 are behind the engine mounts so it's very difficult to drain the block.
Don

 

[Missy Good Wench]

There are little pipe plugs back behind the mounts.

A Bitch to get out even with the engine out and on a stand.

Best thing is to drain the radaitor, refill the thing with fresh water and run again and drain and do this till you get fresh water all the way.

This will assure you of a complete clean out including the heater core/cores (if it has rear heater.

After you do the pump R&R just add 3 gallons of non deluted Green juice. This will get you close.

Then add 50/50 mix to top it off and you should be right near spot on for the mix.

The left over fresh water in the block/ heater core, lines and such will delute the straight green to near 50/50.

The block holds a fair amount of coolant below the pump inlet level.


Missy

 

[indybeck]

The only reason I ask is because i got a friggin' awsome deal on some pre dilute diesel engine coolant. Can I use air, or some ramps under the back wheels, or both to drain the coolant, and/or the water after flush?

 

[Pruittx2]

I have always found, that if you remove the upper rad hose,,, at the rad, and then drained the rad,,, when it gets low, I would then remove the lower hose at the rad, and hang it down to the lowest it would go, If the T-stat was out that would cause a suction that would almost drain the block all the way. Then hold your hand over the t-stat area and put a small air nozzle in there and try to blow the rest out!

1 question I have for you is,,, WHAT is Diesel coolant, and how is it different?

 

[indybeck]

Coolant is still green, but different additives, and addition of PH boost. Helps protect things in the coolant passages, and easier on gaskets.

 

[Diesel -T]

Not meaning to get too far off topic, but wonder if someone could advise what "SCA precharged" means . Statement is on some antifreeze given me that is stated to be " For all Heavy Duty Engines ". It says "No initial SCA precharge Required" .

 

[Diesel -T]

Indy
Thanks for the info re precharging .

 

[SmithvilleD]

Not meaning to get too far off topic, but wonder if someone could advise what "SCA precharged" means . Statement is on some antifreeze given me that is stated to be " For all Heavy Duty Engines ". It says "No initial SCA precharge Required" .

SCA stands for supplemental coolant additive. No initial SCA precharge required means it's supplied in a fully formulated mix.

As compared to needing to add water, coolant/antifreeze, and a combination of anti-corrosion & buffer chemistries. The coolant mix is fairly basic/alkaline ~ ph=10 if memory serves.

That slick feeling when it's on your fingers is the basic/alkaline pH sloughing off dead skin cells - same slippery feeling as with alkaline oven cleaners, drain cleaners, etc.