Mack E7 Etech what to do as tap water was run rather then coolant

[Gorilla]

Hi Everybody,

Previous owner ran water rather then coolant and its a nice rusty hue and i am planning on doing a flush of the cooling system consisting of:

*drain water out

*put in fresh water, run engine then drop again after 20 minutes

*if dirty water coming out then repeat previous process

*if clean then put in coolant system flush with fresh water and follow instructions

*flush system out of with fresh water

*put in distilled water to flush out all/most of the fresh water and run engine for a 20 minutes

*Put coolant concentrate mixed to highest level with distilled water

 

This will be fine BUT i have a concern and that is the heat exhanger tube for the oil, i know they can fail and have been toying with the idea of removing it and cleaning it before i put in fresh coolant.  Also tossing up taking the radiator to a radiotor place to get it reconditioned as a precaution.  What is everybodies thoughts?

Thank you in Advance,

Chris

[Joey Mack]

Without seeing the issue up front, can you run several cycles of dish washer powder until its clean. We use Cascade in the states. There are other brands to use. 

[fjh]

8 minutes ago, Joey Mack said:

Without seeing the issue up front, can you run several cycles of dish washer powder until it’s clean. We use Cascade in the states. There are other brands to use. 

Put premixed coolant in save your buying distilled water!

[Geoff Weeks]

Coolant filter, add one if it doesn't have one!

[Gorilla]

would you guys be concerned about the state of the radiator or heat exchanged ?  Im building the truck to do long runs and it gets hot here (40+ degrees celcius) and concerns are running in my mind as to weather to just replace the radiator and heat exchanger?

 

[Gorilla]

5 hours ago, fjh said:

Put premixed coolant in save your buying distilled water!

works out cheaper to use distilled water with concentrate

[Gorilla]

4 hours ago, Geoff Weeks said:

Coolant filter, add one if it doesn't have one!

if it does not have one can you retrofit them to the etech? 

 

[Joey Mack]

Yes. There are some small steel lines needed to bleed air, do have pictures of the front if the engine, including the left front corner and the water pump, and the right front  corner including the lower corner. 

[Geoff Weeks]

8 hours ago, Gorilla said:

if it does not have one can you retrofit them to the etech? 

 

Yes, they just get plumbed from the pressure side to the suction side of the waterpump.  Most bigger filter mfg sell the spin on filter heads.

If I were you, I'd install the filter and run it for a while. If you have overheating problems change the radiator. That way you give the filter a chance to work, and not put a bunch of crap into the new radiator from the rest of the cooling system.

Coolant filter are a bypass type filter, meaning they can plug and cause no running problems. If you notice the filter is cool after running, the filter is plugged and you need to replace it. (doing its job). Once the crap is out of the system, the filter will keep new stuff from building up..

[Gorilla]

11 hours ago, Joey Mack said:

Yes. There are some small steel lines needed to bleed air, do have pictures of the front if the engine, including the left front corner and the water pump, and the right front  corner including the lower corner. 

Ill take some pics tomorrow when im at the truck, very little information online on the Quantum and its unique to both renault and macks so fun times  hahaha ;)

[Gorilla]

11 hours ago, Geoff Weeks said:

Yes, they just get plumbed from the pressure side to the suction side of the waterpump.  Most bigger filter mfg sell the spin on filter heads.

If I were you, I'd install the filter and run it for a while. If you have overheating problems change the radiator. That way you give the filter a chance to work, and not put a bunch of crap into the new radiator from the rest of the cooling system.

Coolant filter are a bypass type filter, meaning they can plug and cause no running problems. If you notice the filter is cool after running, the filter is plugged and you need to replace it. (doing its job). Once the crap is out of the system, the filter will keep new stuff from building up..

Going to look into it today, although i dont have overheating problems just coolant is either really old and rusty or its water and im not game to taste it and see if it is coolant hahaha.  Plan is to put a camera into the radiator once ive cleaned it to see what its like inside and then decide weather to replace the radiator.  Truck is not overheating as such, more so preventative maintenence.