Quote Originally Posted by pierced View Post
Andito lang pala kayo! I hope someone can help me with my problem also.. I've read all the posts here.. From page 1 till here I am posting.. I have a 97 L200 4D56 Engine.. When running on a freeway.. Ok lang temp nya.. Problem starts sa traffic.. Even if it's a short traffic tumataas! Hanggang 3/4 and still moving closer to the warning sign (red) and kasi takot ako mag overheat I usually turn off the a/c and when I get home when I check my reservoir ubos ang h20.. I have a new water pump, new head gasket, new camshaft, new rocker arm assy, overhauled my rad, rad cap is still new, valve clearance is correct, belts are new.. It doesnt have a thermostat anymore.. Yung reservoir ko medyo sira na kasi hindi na sealed.. May singaw na.. Havent checked on the clutch fan since I dont have any problem when running * high speed.. But the temp rises when you run uphill..

Can anyone please help me?? TIA
This normal on a dirty cooling system but please put back a thermostat to
make your system complete. You would also need to use premix coolant to hopefully retard the corrosion in your system. Ang problema kasi it would be
very difficult to remove the scaling in your cooling system without the proper equipment.

The use of raw water destroys your cooling system as water is the universal solvent, in simplest terms nilulusaw ng tubig and mga bakal sa makina mo. And your cooling system is the weakest link in the chain in your engine (napakanipis ng pyesa rito).

Ang problema maraming magaling na mekaniko sasabihin sa iyo na personal preference daw ika kung tubig ang gamitin mo pare pareho yan.
But the reality is maintenance is all about protocols, nakakasunod ka ba sa
requirement ng engine for a trouble free operation.
Your situation now is how you can control the corrosion in your cooling system.