Is there anything I can add to the garden hose that will remove oxidized aluminum?

[scooper77515]

From the engine block.

That 96 XP I have has a great deal of chalky white crust in all the water passages in the engine. Each time I take it apart, I try to scrape all the residue off, but is there something I can add to the garden hose that will run through the cooling system and break that stuff down?

It HAS to be making the engine run warm, and I fear it may eventually clog something up and cause overheating and engine failure.

Damage is NOT from me. It sat in a garage near the beach, and floated around for about 6 hurricanes before I got it. Also, previous owners did not flush the sand and salt out of it after using it off the beach.

I do now, religiously. But I am not undoing the damage done in the past.

 

[93'XP]

ive heard tons of good reviews on "salt away", you hook it up to the hose and run it, check out there site for all the info, in about to buy a kit tomorrow

 

[timmyboy76]

What about a bottle, like you would feed grass, that hooks to hose, what if you put CLR, Bleach???

 

[seadoosnipe]

Minerals.....

The white chaulky substance in your water jacket is not "salt". This is the deposited minerals, that leach out of the water as it is heated.

Water is an excellent solvent, in that anything soluble that it passes through, will become a liquid and be carried along with it. Sea water contains sodium and chloride, together forms salt which is the primary mineral in sea water. The third most abundant is magnesium, which makes up 2% of the earths crust. Sea water also contains, calcium, potassium, boron, silicone, aluminum and the list goes on and on.

When this water passes through the tuned pipe, being pre-heated by the exhaust gases of the engine, it percipitates the minerals from the water and they leach into the metals they pass through. This is why you see all these deposits in your engine.

Does that thermally insulate your engines capacity to carry away the heat of combustion? Yes, but not to the point that the engine wll over heat. Just from the normal operation of the cooling water circuit, it is constantly removing and re-depositing minerals in the engine.

The Rotax 1503, 4-Stroke engines use a closed loop system, kinda like our cars. So they won't see this kind of build up in their motors. :cheers:

 

[seadoosnipe]

Bleach!.....?

Bleach is highly corrosive to stainless...........so, make sure to replace the bolts that hold your motor together.:rofl:

 

[timmyboy76]

Alright... bleach is no good. Figure i throw some things out there.