It depends if it is an OHV(pushrod motor) or a s.o.h.c./d.o.h.c. motor. Ohv engines can have a timing chain set that allow for adjustment, to be installed. You can also install crank keyways that adjust the timing by moving the crank cam gear the required degree/s. Overhead cam engines can have cam gears installed that allow for cam adjustments.
variable valve timing is where the engine changes valve timing based on the driving situation much like ignition timing is changed to meet the needs of the engine in specific situations. in most cars valve timing is static and determined by the timing gear on the camshaft
You don't there has been ajustable timing on most passenger cars in 20 years!
Variable valve timing is used on numerous cars and trucks. The Chrysler 3.6L which is used in most new Chrysler vehicles for example.Variable valve timing is used on numerous cars and trucks. The Chrysler 3.6L which is used in most new Chrysler vehicles for example.
This component is electrically operated by the engine computer. It (on most vehicles) changes the oil pressure in the variable valve timing system to adjust the valve timing. It is very similar to the solenoids in use inside an automatic transmission.
Only some aftermarket shocks have an adjustable valve. You most likely don't have an adjustment valve. List symptoms that make you believe you need better shock absorber performance.
Timing belt breaks or chain jumped. one thing that will cause this problem is over reving the engine. To the poster who said over revving the engine; please explain. I wonder how race cars can turn 12,000 - 16,000 RPM's and not sink a valve if revving has anything to do with it. May be the timing belt breaks? ANOTHER ANSWEREither the timing chain or timing belt has "slipped" (most common) or the valve has been sticking or the engine has been operated at an excessive RPM resulting in valve "float". Valve float depends on the mass of the valve assembly and the strength of the return spring. Elaborate valve assemblies have been established for the purpose of preventing valve float.
no but most of the s classes do
About $115. Labor $75 and valve $35. It takes about an hour. Most cars.
u cant most newer vehicles timing is controled by the cars computer
timing , burnt valve, fuel/carburation prob.....most likely a timing/ignition problem.
Well in most cars there are 5 gears and the reverse. Don't forget the timing gears, steering gears and differential gears.
Usually at 100K miles.on most cars its 100,000 miles