Question about Chevrolet 1500
Installed head gasket. Can't get it to start but rocker arms still need to be adjusted
Posted by Anonymous on
These are adjusted the same way 5.7 litre motors have been adjusted since GM started making this size of motor. with every thing in place tighten rocker nuts down until about 1/16" threads is protruding above nut. once the car starts allow the engine pressure to build and oil is squirting around rockers. then with engine running tighten down rockers that are noisy until the noise has just gone. then back off nut until it starts to clatter then tighten 3/4 of a turn. repeat to all the other rockers and your done.
Posted on Aug 17, 2015
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Posted on Jan 02, 2017
Fig. 7: Rocker arms and related components - 1991-99 VIN L engine and 1998-99 VIN 1 engine (click image for zoom)
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Posted on Oct 18, 2011
SOURCE: I have a 2001 chevy
You are correct there is no lash adjustment, just the torque. However you do have to rotate the crankshaft balancer to position the crankshaft balancer alignment mark 57-63 degrees clockwise or counterclockwise from the engine front cover alignment tab. No further adjustment is required. By the way I have 22 Ft. Lbs for that torque (probably doesn't matter much) I hope this helps.
Posted on Sep 04, 2011
SOURCE: rocker arms
I'm, thinking you may mean cam rocker arms (lobe followers) and like the saying goes, "1 picture is worth a thousand words". These arms fit below cam shaft and sit over valve springs with a small round disc shaped spacer. These spacers are notched so the follower rest on valve. The other end of follower sits atop of the lash adjuster, The top of this adjuster is globed shaped to fit securely to the follower while allowing the correct lash adjustment by two hex nuts on the adjuster.
Confused yet? Well its not easier said than done. If you have access to a shop manual hopefully picture will help Good luck and I hope I have helped. Kam
Posted on Sep 06, 2008
I'am gussing its a 4.3, first you have to make sure the lifter is all the way down on the cam lobe, you can acheve this by rotating the engine by hand, then you tighten the nut on the rocker down until you can bearly turn the push rod and then give it another full turn, do this same procedure on the rest and you are good to go, you do not need a torque wrench to do this just a socket and ratchet.
Posted on Sep 11, 2009
Okay. Turn the engine untill you have the crank mark lined up with the 0 on the pointer. At that point, look at the valves on #1 cylinder. They should both be closed, or in the "up" position. If they aren't, you'll have to turn it one revolution, to get to compression stroke. Now, you're ready to put the distributor in. Take the top off the cap, and position it in the hole, so that the rotor lines up with #1 on the distributor cap. If it's a newer one, take a close look inside at where #1 actually is because the newer ones are off set a little. Now, tighten the cap on, and hook up the plug wires, one at a time in the proper order and rotation. When you try to start it, it should run where it is, but you may have to turn the distributor slightly one direction or the other to make it start. Try your best to keep it running for 20 minutes or so the first time so your gaskets will set. ( not always an easy task when the valves aren't adjusted, and antifreeze can still vapour lock on you) If you need to know more, let me know.
Posted on Nov 13, 2009
Testimonial: "Thank you , but still hoping i had it at tdc to start with when i set the rocker arms but checked comp good on all but #1 and #3 "
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ADJUSTMENT Although it is sometimes possible to reuse an old cylinder head cover gasket, in most cases it makes more sense to purchase a new one before beginning the procedure. Some vehicles may require the use of silicone sealant either with or without a new cover gasket. For more details, please refer to the cylinder head cover procedures in Engine & Engine Overhaul of this repair guide and refer to the gasket manufacturer's instructions.
See Figures 1, 2 and 3
For the intake valves: 1-4-5-8 valve clearance is 0.012 in. (0.30mm). For the exhaust valves: 2-3-6-7 valve clearance is 0.012 in. (0.30mm). The pivot locknut torque specification is 12-16 ft. lbs. (16-22 Nm).
Fig. Fig. 1: Check the valve clearance with a flat feeler gauge-Z24i engine
Fig. Fig. 2: Loosen the locknut and turn the adjusting screw to adjust the valve clearance-Z24i engine
Fig. Fig. 3: With the No. 1 piston at TDC, adjust the top set of valves FIRST; with the No. 4 piston at TDC, adjust the bottom set of valves SECOND-Z24i engine
Fig. Fig. 4: Cross-sectional view of an installed hydraulic valve lifter-4 cylinder engine
Fig. Fig. 5: Cross-sectional view of an installed hydraulic valve lifter-6 cylinder engine
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