How do you convert a diesel engine to a gas engine?

Answer 1

If you have the engineering know-how and an engineering workshop with the right tools it might be possible to convert the engine if you were already a car repairs and tuning enthusiast... But then you would not be asking this question here, would you? !!!!

It would definitely not be possible to convert a gas engine into a diesel engine because the cylinder block and head would not be strong enough. A diesel engine needs a much higher compression ratio than a gas engine, which means the gas engine's cylinder block and cylinder head would probably explode under the higher pressure.

You would have to change so many things:

* the crankshaft, to get a shorter piston stroke, because the compression ratio for gas is much lower than for diesel;

* the connecting rods and pistons * the cylinder head and camshaft to get the right valves and holes for spark plugs

* the fuel injectors and fuel pump - and maybe the tank too, to get the right vents and filler cap for gas instead of diesel * the exhaust system to get the right catalytic converter * the gears in the gearbox to get the right gear ratios to suit a gas engine * diesel does not use any spark plugs so you would have to find way to add an ignition system to supply the sparks! * etc. In short, it would not make sense to try to do it from a cost point of view.

You could perhaps buy a reconditioned gas engine, made by the original car manufacturer to go in the same model of car, but, unless you could fit it yourself along with all the other bits and pieces it would be far cheaper just to buy a secondhand gas model and sell your present diesel model.