This website was created to meet the needs of the serious amateur who wants learn and know how to maintain and repair his own car and learn auto repair skills, tips and principles.
What does EURO 4 standard stand for? First let me explain what this standard is all about. This is the European emission standard which is the standard that defines the acceptable limits for exhaust emissions of new vehicles sold in European Union member states.
In the same way two long chains of nucleotides determine who we are, each Honda car is created out of two principles embedded in its long and colorful tradition, “fun in driving” and “care for the environment”. Much like our DNA, the combination of these two principles governs how each Honda car should be built.
For years, however, US car manufacturers were challenged to create the car that could deliver the power consumers demanded and at the same time do what was then deemed impossible: pass the U.S. Clean Air Act. But this predicament was before 1972. Before Honda shocked the world by doing the impossible. (more…)
Both classes have their own specific advantages and uses. For autombiles, the four cycle engines is most used. For motor boats on the other hand, the two cycle engine is most often used.
The horse power of gas engines is designated as HP and also brake test HP. The IHP is the theoretical HP, which is found by figuring different formulas, in which the diameter of the bore, length of the stroke in inches, and number of revolutions per minute form the basis for calculation. The results are found by the use of such formulas.
The BTHP on the other hand, is the power the engine actually develops in service, and is considerably less than the IHP. Keep in mind, this depends upon the degree of the mechanical perfection attained in the construction of the same. If both the compression and construction are good, the engine may actually reach 80 – 88% of the intended IHP.
With gasoline engines, high HP and high RPM ranges are what makes them popular. Gas engines have always been more popular than diesel vehicles, for the simple fact that they can achieve more speed. If speed is what you are after, gasoline vehicles are what you should be looking for. Although they may lack in torque and raw power, they make up for it with speed and tuning options.
1) A/C compressor clutch – Check with stethoscope; replace clutch
2) Various, including exhaust system leak, tubing that makes contact with body or engine, transmission cooler, brake master cylinder, loose accessory brackets, etc. – Check, repair or replace; check tubing by inserting water pipe insulation between tubing and body, and if noise dwindles or disappears, cover tubing with insulation
1) Engine spark; bearing; piston – Short out spark plug for appropriate cylinder to reduce or eliminate
2) Air conditioning system – Check No. 1 crankshaft; if noise is heard only when the air conditioner is on, check compressor bearing with stethoscope
3) Loose bolts in torque converter; rod bearings; piston pins – Check torque converter; if noise continues with engine idling, check rod bearings
4) Carbon deposits in combustion chamber – Apply engine cleaner, observing service procedures
If you hear some tapping from somewhere in the engine, possible sources and ways to analyze or cure them are:
1) Valve Train (if rhythmic) – Check the oil level; with the valve cover off, make sure there is enough oil on the parts
2) Rocker Shaft – Check, tighten rocker shaft bolts (on overhead valve engines)
3) Mechanical Lifters – Adjust lifters
4) Exhaust Manifold or Gasket break at pipe joint – Tighten manifold; replace the gasket
5) Burred Timing Gears – Check with stethoscope on timing cover; replace gears
If you hear some squealing from somewhere in the engine, possible sources and ways to analyze or cure them are:
Possible sources Ways to Analyze or Cure
1) Worn or damaged drive belts – Check tension; replace belt
2) Loose drive belt – Tighten belt
3) Defective accessory bearing – Install rebuilt unit
4) Air-conditioning compressor – Spray shaft seal with refrigerant oil
5) Worn rocker arms, ball studs, or shafts – With valve cover off, listen to each rocker with engine running, then replace worn parts and clean engine with purge solvent