Harga Mahal Kualitas Murah (Busi Motor)

Within a year, needs plugs in Indonesia reached 30 million units. No wonder if this makes the importer saliva flow. This is evident from the increase in the number of the entry of China into Indonesia plugs.

From the data entered in 2008, there were at least 2.6 million U.S. dollars import plug the incoming transaction. And in 2009, jumped 4.3 million U.S. Dollar. Truly a remarkable improvement. And today, more than 48 brands available in Indonesia Chinese plugs.

Not only the number, the profit margins offered by spark plug cungkok also tempting shops and retailers. By studying and Em-Plus, China plugs can be purchased for only $ 3000-4000 thousand in the class of agents. After that, "for sale to consumers by the price of USD $ 8 thousand," said Didik Riyad, a mechanic living in Surabaya.

And what about consumers? Does this spark plug quality setera with the money spent? Considering the price China is not far adrift of spark plugs with plugs branded. "Spark plugs NGK, Denso or Champion sold at Rp 12 thousands," said Jalal, machine shop live in Tangerang.

Em-Plus teams try to test China-quality spark plugs. Of the 48 brands that exist, we took eight samples from the most expensive Chinese plugs (USD 17 thousand) to the cheapest (Rp 7,500). Spark plugs spark plug type selected is the standard and type of R that contain resistor. The first test is to detect leaks. Spark plugs should not be leaking. When the cylinder head, piston must withstand compressed by up to 20 thousand kg.f with the engine temperature to 300 degrees Celsius.

We also tried to leak the leak test. In the leak test, the plugs are placed in iron screwed. After that, compressed with a pressure of 20 thousand kg.f and flowing temperature of 300 ° Celsius. The temperature was allowed for 15 minutes. This is to hold the plugs in the actual habitat. Precisely in the machine and used riding for hours.

But, that's too extreme, so we are just trying to 1 minute. As a result, all the samples we tried did not qualify in this test. Even just by compression tests, have shown leakage at the ring talc. That is the connection between housing and the ceramic insulation. This condition is more severe when the added heat. Housing or the spark plugs are his moderate, immediately released.

Imagine how it would if it occurs in the engine mate. Part spark plugs stuck in the cops or ceramic, may only be thrown out of the cop plugs. But, the housings will be entered into the cylinder head and piston beaten. Can imagine, how severe the damage inside the machine motor.

RESISTOR NOT WORKING OPTIMAL

Sample plugs are imbued letter R omen equipped resistor (resistance) is used in the motor apply a digital speedometer. For electrical plugs electrical current does not spread to digital devices. Tested using a ohm meter. What is the resistance of the spark plug was mounted to overcome electrical leakage. Of the 4 samples in tes Chinese plugs, 3 of them prisoners highest revolve 8 ohm. In fact there are only 3 ohms.

"In fact, when only limited resistance value in ohms figure, unable to cope with electrical leakage. The minimum limit should be three kilo ohm, "said tester is unwilling to be named. This means that there are R labels in Chinese plugs can be called just a decoration. Because the resistor does not function. Only one spark plug China that number is 3.23 kilo ohms. Medium Japanese plugs could reach 4.6 kilo ohms.

Author / Photo: Tim MOTOR Plus
Source : http://www.motorplus-online.com/index.php/article/detail/id/2707