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Posts Tagged vehicle
Gasoline to Diesel Conversion Kit For Your Car – Advantages and Disadvantages
With the high price of fuel in the market today, motorists now consider fuel economy as a vital component in their everyday driving. Most of them think that if their cars have fuel-efficient engines, then they can reduce their car’s fuel consumption by significant proportions. Thus, it is no wonder why many of these drivers contemplate about getting a diesel engine instead of a gasoline-powered one. Others who may have been driving a gasoline engine from the start and want to switch engines have tried exploring the possibility of switching their current engine to a diesel-powered one. Now this is no easy feat. Changing car engine types is not as simple as changing one’s shirt.
While it is definitely possible to change from gas to diesel, the process is impractical. Because gas and diesel engines are very different from one another, there is sure to be a lot of parts that need to be adjusted. Gas to diesel conversion entails not one part to be altered; in fact, the process would affect the whole mechanical set-up of the vehicle. The most important change would have to involve the difference between the engines’ compression ratios. Diesel engines, you see, need a higher compression ratio compared to a gasoline engine. This is because diesel uses heat of compressed air to ignite the fuel. A gas engine, on the other, has spark plugs to do the trick. To solve this problem, you would have to install longer crankshafts in place of the shorter ones in a gas engine. This is more complicated that it looks because there are no ready-made crankshafts for all engines. Therefore, depending on the availability of crankshafts for your car model, you may have to have yours custom-made.
The second drawback is with regards to the fuel path. In gasoline engines, the fuel is injected into an intake manifold and then led into the combustion chamber for ignition. In the case of diesel engines, though, the fuel is directly injected into a pre-chamber where actual combustion takes place. In short, diesel engines have longer fuel paths compared to a gasoline engine. To address this difference, you would have to alter the heads in such a way that it can accommodate a pre-chamber, glow plug, and a diesel fuel injector.
Tags: car engine, car model, cars, combustion chamber, compression ratio, compression ratios, conversion kit, crankshafts, diesel conversion, diesel engine, diesel engines, diesel fuel, drawback, engine, fuel consumption, fuel economy, gasoline engine, gasoline engines, intake manifold, motorists, Parts, proportions, r cars, timing belt, vehicle, vital componentRelated posts
Engine Noises – Ticking, Tapping and Knocking
One obnoxious sound is a rattling noise caused by a loose or vibrating component.
A similar problem is excessive or worn clearances between two moving parts, such as a connecting rod bearings.
Ticking noises or tapping noises as a rule can be linked with a problem in the engine’s valve train vicinity.
Since the pressure of the top end or valve train, is less than the pressure of the lower engine components, light sounds of ticking or tapping are usually produced.
If the problem happens to be in the valve train, the ticking or tapping noise would be heard at a speed that’s slower than the engine speed. The explanation for this is that the camshaft rotates at one-half of the engine speed. Therefore the speed of the tapping noise will be slower if there is a problem with only one valve.
Broken valve springs, incorrectly adjusted valve clearances, worn or defective valve lifters, or worn camshaft lobes are the most recognizable troubles associated with tapping or ticking noises.
Knocking noises are most generally louder than tapping or ticking noises and can usually be very recognizable in the lower part of the engine.
A knocking noise in the connecting-rod bearing area is very common.
Lack of oil pressure at the bearings can cause bearing wear, that in return, creates excessive clearance between the crankshaft journal and bearings.
Tags: camshaft, camshaft lobes, connecting rod bearing, connecting rod bearings, crankshaft, defective valve, engine, engine components, engine noises, engine speed, friction, journals, mechanics, moving parts, oil film, oil pressure, Parts, surfaces, valve clearances, valve lifters, valve train, vehicle, vicinityRelated posts