Tuesday, September 1, 2009
Can RON 95 fuel be used???
Below are the list of cars that can use RON 95 fuel.....
Any comments or questions just feel free to comment about it.
Sunday, July 12, 2009
Checking Your Spark Plugs Conditions (Fault Diagnosis)
Appearance
|
| Conditions
|
| Possible cause
|
| Normal
Light brown, tan or grey firing end. |
| A good indicator that the plug is functioning correctly and general engine conditions are good. | |
| Dry and wet fouling
|
| Can be caused by many different conditions. Carbon deposits build up when the plug fails to fire correctly and burn them off. Air/fuel mixture too rich, choke stuck on, electrical problem, extended periods of low speed driving, plug heat range too cold. All should be investigated | |
| Overheating
When overheating occurs, deposits which have accumulated on the insulator tip may melt and give the tip a glazed appearance |
| Possible causes are overadvanced ignition timing, air/fuel mixture too lean, water or oil level too low, plugs not fitted (tightened) correctly, plug heat range too hot. | |
| Deposits
Insualtor nose and electrodes encrusted with a build of deposits - usually off white in colour. |
| This is often caused by oil leakage through the piston rings or valve seals. Could be due to the wrong viscosity of oil being used. | |
| Lead fouling
Lead deposits on the insulator nose. These are usually a yellowish brown in colour. |
| Lead content of petrol used is too high. Try petrol with a lower lead content. | |
| Breakage
|
| Usually caused by abnormal thermal expansion in the combustion chamber. Maybe thermal heating or cooling shock. Causes as for overheating above. | |
| Normal life
Growth of the plug gap during a plug's working life is normal. However, the increased gap will mean the spark is less efficient and hence fuel is wasted and strain is put on the ignition system. |
| Plugs are at the end of servicable life. Replace plugs as a set. | |
| Abnormal erosion
|
| Due to the effects of corrosion, oxidation and reaction with the lead in petrol. | |
| Melting
|
| Due to excessively high temperatures in the combustion chamber. Causes as for overheating above. | |
| Erosion, Corrosion, Oxidisation
The surfaces of the electrodes are rough, in extreme circumstances the electrode material will have oxidised to the point of turning green |
| Possibly due to age, vehicle standing for a long time without use. | |
| Lead Erosion
The ground electrode will appear worn away, the central electrode will appear chipped and the insulator nose will take on a yellowish brown. |
| This is due to chemical reaction between the nickel alloy electrodes and the lead compounds in petrol. |
Any comments or questions just feel free to comment about it.
Sirim-Certified Tyres
PETALING JAYA, July 10 -- Vehicle owners should use only Sirim-certified tyres to ensure the safety of drivers, passengers and other motorists, said Road Safety Department director-general Datuk Suret Singh.
He said, using low quality and non-Sirim certified tyres were identfied as among the causes of road accidents.
"The safety of a vehicle depends a lot on using appropriate tyres as using non-Sirim certified tyres will not only jeopardise the safety of the driver and passengers, but also other motorists on the road," he said.
He was speaking to reporters at a news conference after the signing of a Memorandum of Understanding (MoU) between the department and the Malaysian Tyre Manufacturers Association on promoting tyre safety issues here on Friday.
The association involves Malaysian Association of Tyre Retreaders and Dealers Society, Tyre Retreading Manufacturers Association of Malaysia and Association of Tyre Importers, Kuala Lumpur.
Suret Singh said the MoU would extend and improve cooperation with tyre manufacturers in the department's efforts to restrict the import, distribution and selling of tyres that did not meet Sirim standards.
He said the department planned to carry out undercover operations with the customs department, domestic trade, cooperative and consumerism ministry and the police to ensure non-Sirim certified tyres were not sold in the market.
Friday, July 10, 2009
Proton Waja 2.0 (Putra GTi) totally made by Proton’s Fans
Saturday, June 13, 2009
Mazda Astina 323 BG series: Gear Shift Lever Problem
So I fixed it at home and found out that the rubber mounting which holds the lever in place was broken and beyond repair. So I tried using a flat and flexible metal plate mostly used to hold water filters on the wall to hold it in place. This is how its done.....
First loosen the 4 mounting nuts which holds the shift lever mounting plate at the bottom.
Then put the metal around the bottom part of the shift lever bracket to the mounting plate. Push the metal in between the body and the mounting plate as shown in the picture.
While putting the metal in between the body and the mounting plate, try to push it through untill the metal can be seen on top. Then pull it up like this.....
After pulling it up like that, try to pull the metal untill the shift lever is in place and tight between the shift lever bracket and mounting plate. Pull it untill it cannot be pulled. After that cut the remaining metal like so
Then bend the metal to hook to the mounting plate like this
Then tighten the 4 mounting nuts
After tightening those nuts, clamp the metal tightly to the mounting plate like so with a plier on the left and right side.
Last but not least stuff some rubber or small rubber hose at the sides to make it fit and put the round rubber to cover it
Then put back the center console and the gear knob and done. Now it looks like nothing happend. If there is any comments or questions just feel free to post it up. I will try to answer it.
Saturday, June 6, 2009
My Ride Mazda Astina BG series
Thursday, May 14, 2009
Basic engine tuning
Making bigger inlet and exhaust valves- bigger inlet and exhaust valves which means ports being machined to a "better" shape. so more air and fuel can go into the combustion chamber to be burned and also better escape of exhaust gasses.
Bigger pistons- bigger pistons makes the cc of the engine bigger. for example, an engine of a 1.6 litter being bored and fitted with a bigger piston to make it to a 1.8 litter engine. by making an engine with a higher engine capacity can make more horsepower.
Tuned exhaust and intake manifolds- with a tuned exhaust and intake manifold, will increase horsepower of an engine. because the engine can breath better and remove the exhaust gas better too. a well tuned intake manifold can make better air flow for each individual cylinder which allows more air and fuel to enter. this increases the volumetric efficiency of the engine. this also applies to the exhaust manifold which improves better escape of exhaust gasses.
Lightening parts- lightening your motor parts like the flywheel and crankshaft can contribute to more acceleration especially in lower gears. this is because less energy is being used to move these rotating parts. but it will not increase horsepower of the engine.
if there is more you would like to share or questions, feel free to post a comment. would like to hear it.
Wednesday, May 6, 2009
engine 4 stroke cycle
Intake stroke
The first stroke is the intake stroke. The piston
moves down the cylinder and creates a partial
vacuum in the cylinder. A mixture of air and fuel
is forced through the inlet valve into the cylinder
by atmospheric pressure, now greater than the
pressure in the cylinder. During this stroke,
the exhaust valve stays closed.Compression stroke
The second stroke is the compression stroke.
The piston moves up in the cylinder with both
valves closed. The air and fuel mixture is
compressed and the pressure rises.
Power Stroke
The third stroke is the power stroke.
Near the end of the compression stroke,
the air and fuel mixture is ignited by an
electric spark from the spark plug. The
combustion that occurs causes a rise in
temperature and enough pressure to force
the piston down again
The fourth stroke, or exhaust stroke, the
piston moves up again and forces the burned
gases out of the cylinder and into the exhaust system.