To provide our customers anywhere within the geographical state boundaries of Goa we provide door to door service at your home, office, factory, warehouse; Metro Radiators comes with their vehicle to collect your radiators, whatever the size may be. We also provide Emergency Radiator Services if you are stuck on the roadside or desperate to get your vehicle radiator working for some event and on time.

Radiator Core Change

When a radiator core needs to be changed the following measurements are checked for accuracy by our experienced radiator technicians First the Core height (A) between header plates (Core only) is recorded then Core Width (B) from fin to fin (not including side pieces) is counted. Next is the Core thickness (C), then Header Width (D). Then the solder on tanks measure center/center of the groove. Also the Header Length (E) is measured. Number of bolt holes in each header is counted. Header Overhang is noted (F) If both measurements are the same, the headers are centered. Then the radiator core is changed.

Radiator Replacement

At Metro Radiators we do the following checks while replacing a brand new radiator.

1. Qualified technicians check all possible causes or the radiator deterioration.
2. We Inspect radiator cap with tester. The radiator cap increases the boiling point of the coolant and ensures a constant level of coolant in the radiator.
3. We methodically flush the system including the heater core and overflow container. Any residue in the system may pollute the new coolant and cause early failure.
4. Our technicians install a new thermostat.
5. We inspect hoses and install new clamps if required.
6. 50/50 mix of antifreeze and clean water (distilled water is recommended if water treatment in the region shows high signs of by-products). This mixture will supply defense against boiling and freezing temperatures while providing maximum corrosion protection.
7. Once the work is completed, technicians at Metro Radiators run the engine long enough for the electric cooling fans to turn on and then examine the mechanical thermal clutch fan for proper engagement.  Cooling fans are essential for proper system operation and preventing cooling problems at low speeds.
8. We make sure the drive belts, specially the one that runs the water pump is tight and in good quality state.

Radiator Leakage Repairs

According to the Proprietor of Metro Radiators, Mr. Mohsin Khan who has 12 years of experience in the sales and service business of radiators says that ordinary leaks are easy enough to detect because they're hard to miss. A leak of any size at all will weep, drip or spray coolant. The consequential loss of coolant usually leads to engine overheating, which can cause more harm if the leak isn't found and fixed.

Radiator leaks caused by internal corrosion may be found almost anywhere on a radiator. The most vulnerable points are usually the seams and where the tubes are joined to the headers.
Leaks caused by punctures in an otherwise fit copper/brass radiator can usually be patched by soldering, brazing or even sealed with epoxy or specially-formulated high temperature hot-melt adhesive (which is not the same kind of adhesive used in a home hot glue gun). If the radiator is full of corrosion, though, a patch is not going to last and technicians of Metro Radiators in Goa could suggest that the radiator may have to be recored or replaced.
Aluminum radiators can also be repaired by soldering, brazing or welding, but it takes skill and special materials which experienced technicians have at the factory of Metro Radiators.  Epoxy or special high-temperature hot melt waxes are other repair alternatives that are used on aluminum.

Leaks in plastic end tanks can be filled with epoxy, covered with fiberglass and epoxy, or hot-air welded using nylon plastic filler rod. Welding plastic takes some skill and requires careful surface preparation to get good adhesion. The leak must first be "V" ground and sanded, then cleaned with wax and grease remover to assure a strong bond.
The other alternative is to simply replace the damaged end tank. But the job is harder than it looks because the end tank must be pressed down on the core with about 150 lbs. of pressure while the header tabs are clamped in place. This is done at our specialized factory Kakoda Industrial Estate at Curchorem in Goa, India where proper fixtures are used for doing this.

Mr. Mohsin Khan advises that excessive heat can be another cause of radiator failure. Radiators with plastic end tanks are very vulnerable to steam erosion. If the coolant level is low and the engine starts to run hot, steam can erode and melt a hole right through an end tank.

A clogged radiator may look fine on the outside but allow little coolant flow and heat transfer because of plugged tubes. Coolant neglect is the underlying cause. The radiator should be removed and sent or asked to be collected by Metro Radiators door to door service all over Goa to our factory at Metro Radiators & Oil Coolers, Kakoda Industrial Estate, No. D 4/6, Kakoda, Curchorem, Goa, India – 403 706 for radiator factory cleaning, or to be replaced as required.