BruceK
Well-Known Member
Now you have me questioning my own sanity and memory. I will have to confirm when I whip mine out later in the month for a clean. :ambivalence:
Descaling KAD44 Is this OK?
- Thread starter joae
- Start date
vas
Well-Known Member
we are obviously discussing end cap material, right?
The core through which seawater goes through (I think all CAC get the first and coolest seawater intake before it reaches oil and coolant...) must be some yellowie metal, bronze, copper, brass whatever. Assuming the endcaps are made out of some alloy, it should be strong enough for seawater and HCl.
OTOH, the basic body of the inlet/charge cooler could be an alluminum alloy for heat dissipation, weight, etc.
On my ivecos I'm pretty sure the endcaps were bronze/brass something (and rather heavy!)
cheers
V
The core through which seawater goes through (I think all CAC get the first and coolest seawater intake before it reaches oil and coolant...) must be some yellowie metal, bronze, copper, brass whatever. Assuming the endcaps are made out of some alloy, it should be strong enough for seawater and HCl.
OTOH, the basic body of the inlet/charge cooler could be an alluminum alloy for heat dissipation, weight, etc.
On my ivecos I'm pretty sure the endcaps were bronze/brass something (and rather heavy!)
cheers
V
joae
Member
Some results:
I mixed hydrochloric acid to ~10% and poured it in and ther was a distinctive hissing sound and clear signs of that this mixture was way better that oxalic acid.
I left in in until it calmed down (about 2,5 hours).
It has cleaned the worst scales and barnacles that was visible without videoprobe.
So the conclusion is that HCl @ 10% 20°C for 2-3 hours seems to be OK,
I mixed hydrochloric acid to ~10% and poured it in and ther was a distinctive hissing sound and clear signs of that this mixture was way better that oxalic acid.
I left in in until it calmed down (about 2,5 hours).
It has cleaned the worst scales and barnacles that was visible without videoprobe.
So the conclusion is that HCl @ 10% 20°C for 2-3 hours seems to be OK,
julians
Well-Known Member
Did you have a look at the sacrificial anodes before and after the descaling?
Were they completely wasted away after descaling?
joae
Member
The KAD 44 does not have sacrificial anodes for some reason.
/Jonas
/Jonas