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Completely UP. Its called Top Dead Center (TDC)
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∙ 15y ago
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How do you get your 98 cars brake calaupers to go down to put them back on?
If on the rear you might have to turn the piston clockwise. If on the front you must force the piston in.
How to adjust hydraulic lifters?
To adjust hydraulic lifters with the engine off, turn the crankshaft until the lifter is on the camshaft base circle (not the lobe). The valve must be fully closed. Loosen the adjusting nut until you can wiggle the pushrod up and down. Then slowly tighten the rocker until all play is out of the valve train (cannot wiggle pushrod). Repeat the adjusting procedure on the other rockers. To adjust hydraulic lifters with the engine running, install a special oil shroud or some other device for catching oil spray off the rocker. Start and run the engine until it reaches operating temperature. Tighten all rockers until they are quiet. One at a time, loosen a rocker until it clatters. Then tighten the rocker slowly until it quiets down. This is zero valve lash.
What is the torque on the rocker arn nuts on a 96 blazer4.3?
They must be adjusted only while the piston is TDC on the compression stroke. Using a feeler Gage, adjust the nuts only until the 10 thousandths Gage is snug but not held in place. do each cylinder one at a time until done. this will get the engine to run. Next, with the engine running adjust each lifter until it stops knocking, being very careful during this step, too tight will burn a valve real fast.
What is the torque specs rocker nuts for a 99 Chevy Suburban?
BE VERY careful. Your getting ready to bend some valves. Those nuts DO NOT TORQUE down. There is a SPECIAL way that you must adjust them are engine damage will happen.If I tried to explain how to do it. You would just get confused. You need to get a book on your engine and follow the steps on adjusting the valves. They DO NOT tighten all the way down.
What is the crown of a piston?
The piston crown refers to the top of the piston. A piston can generally be divided into two sections (though the piston is a single piece). The lower part of the piston is called the skirt. The upper part, including the top of the piston that faces the valves and must handle the combustion of the fuel-air mixture, is called the crown. The piston crown must have the mechanical strength to withstand the forces of combistion, and must be made of materials that will withstand the heat of combistion. All this must come in a package that has limited thermal expansion so that the tolerances within the engine are tighter and performance is maximized.
How do you adjust the headlights on your 2008 ford super duty?
Remove the fender well 8mm bolts and the up/down adjust bolts are on the side of the headlight. You must remove the fender well
How can a rocker arm on a 1990 Geo Tracker be replaced?
By removing the valve cover from the engine, then removing the rocker nut on the bad rocker. Refer to a technical manual for torque specifications, as this must be properly torqued!!!
How to get oil out my piston?
If there is oil getting to the top of the piston and burning then you have a blown head gasket or the piston rings are worn or broken. Engine must be disassembled.
What piston must be at the top when firing order is 1-3-4-2?
#1 piston must be at TDC / Top Dead Center on the compression stroke.
How do you disassemble a rocker arm 2001 Volvo?
None of the Volvo cars have had rocker arms since 1975. So this must be a Volvo marine engine.
How do you Adjust valves Briggs 16 HP Briggs and stratton in a craftsman 1000 series riding mower?
If its a OHV(Over Head Valve) motor, you can, if not, you cant. If it is a OHV engine, you have to use a five thousands feeler gauge, and adjust the nuts on top of the valves to tighten or loosen the clearance between the valve and the rocker arm, also to do this you must make sure that the motor is a TDC on the beginning of the Power stroke. Then slide the feeler gauge in between the rocker arm and the valve until you can barely slide the feeler gauge in between them. then tighten down the lock nut on the adjusting nut and put the valve cover back on.
Must you remove the engine my piston is broken?
Yes!
