Question about Cars & Trucks
In engines with rocker arm valve systems, the procedure I'm familiar with is to remove a rocker arm cover, and (one at a time!) while the engine is running, slowly back off the rocker arm retainer nut or bolt just until you hear the lifter tapping, then tighten it a quarter turn. If you can identify a lifter that is already tapping, tighten its rocker arm slowly until it stops tapping, then adjust it. Do not over-tighten! This can damage the engine.
Listen carefully to how the engine sounds; if it starts to stumble when you tighten a loose rocker arm, you've gone too far. If you cannot get the engine to run well without tapping, you may have too much wear in the valve train and may be due for a head overhaul, or you don't have adequate oil pressure in the lifters in question.
Repeat until all rocker arms are done. Replace the rocker arm cover using a new gasket, then (in a V-engine), repeat the procedure on the other side of the engine.
Wearing safety goggles, or better yet, a transparent face shield, is strongly recommended. Sometimes oil will squirt out a considerable distance from the lifter side of the rocker arm during adjustment, and the direction is not readily predictable.
Posted on Apr 03, 2015
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Posted on Jan 02, 2017
SOURCE: Adjusting my idle
What make, model, year is your car? What engine? How many miles?
The location you describe may be where the "knock" sensor normally would go. If it is no longer there, it will set a code and turn on the MIL (check engine light). A cheap fix would be to find out for sure what went there, and if it is the knock sensor, find one at a salvage yard, plug it in, and tie it up out of the way so it doesn't move around.
Posted on Jul 14, 2008
Crank the engine until the mark on the damper aligns with the TDC mark on the timing tab and the engine is in #1 firing position.
To adjust a valve back off the adjusting nut until lash is felt at the pushrod. Tighten the nut until all lash is removed. This can be determined by rotating the pushrods with your fngers. When all lash is removed the pushrod will stop rotating. When all play is removed rotate the nut one full turn.
With the engine in #1 firing position the following valves can be adjusted:
Crank engine one full revolution - The following valves can now be adjusted:
Posted on Jul 25, 2009
SOURCE: Valve adjustment
The EA82 does not use shims. Ticking almost always caused by a failed oil pump to engine block gasket failure. The gasket slowly fails which then allows the oil pump to pump air along with the oil. Replace the "Mickey Mouse" oil pump gasket.
Posted on Aug 15, 2009
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