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what sequence do adjust your rocker arms underneath your tappetcover


Sent to Car Experts February 18, 2006 3:00 p.m.
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Pre-1981 Chevrolet pickup 6-cylinder

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Hammer Time Requested
Customer (name blocked for privacy)
Status: Closed   Value: $5   
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February 18, 2006 3:08 p.m. (7 minutes and 54 seconds later)
I'll let him know you have requested him.

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21yrs.Foreign and domestic driveability diagnosis and repair/ ASE Cert./Fuel Injection Specialist.
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Sent February 18, 2006 3:14 p.m. (5 minutes and 26 seconds later)
its a 1966 chevy pickup with a straight 6 is there no sequence?
Customer (name blocked for privacy)
Answer
February 18, 2006 5:47 p.m. (2 hours and 33 minutes later) 		ACCEPTED Check Mark

SOLID LIFTERS (1964-71)

Before adjusting solid lifters, thoroughly warm the engine. The solid lifters are generally found on older vehicles and on certain high-performance engines.

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Fig. 1: Intake and Exhaust valve arrangements for V and inline engines


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Fig. 2: Adjusting the solid valve lifters



Engine Running

  1. Set the parking brake and block the drive wheels, then start and run the engine until it reaches normal operating temperature.

  2. Remove the valve covers retainers, then remove the covers and gaskets by tapping the end of the cover rearward to break the seal. Do not attempt to pry the cover off.

Until you are thoroughly familiar with the technique, it may take some time to adjust the valves. It is likely that while you are adjusting the valve, some oil will drip onto the exhaust manifold and smoke causing a highly unpleasant working condition. This may be avoided using an extra set of valve covers which can be purchased from a junk yard for only a few dollars. The tops may be cut off the extra covers and they may be temporarily installed on the cylinder heads. The walls of the these covers will keep oil from spilling on the manifolds, while the open tops will allow access to the rocker arm nuts for lash adjustment.

  1. If possible, avoid being splashed with hot oil using oil deflector clips. Place one at each oil hole in the rocker arm.

  2. Measure between the rocker arm and the valve stem with a flat feeler gauge, then adjust the rocker arm stud nut until clearance agrees with the specification in the chart. If you are using the modified valve covers for oil control, it may be necessary to make additional modifications in the covers to allow access with the feeler gauge.

  3. After adjusting all the valves, stop the engine. If you are using the modified valve covers, remove them from the cylinder heads.

  4. Clean the gasket surfaces, then install the valve covers using new gaskets.


Engine Not Running

These are initial adjustments usually required after assembling an engine or performing a valve job. They should be followed up by an adjustment with the engine running as described above.

  1. Set the engine to the No. 1 firing position (No. 1 TDC). This can be accomplished by removing the No. 1 spark plug and feeling for compression and the engine is slowly turned or by removing the valve cover and watching the valves for the No. 1 cylinder as the engine is turned. If the valves move while the timing notch approaches the 0 mark on the timing scale, then the engine crankshaft is 360 degrees away from No. 1 TDC. If the valves do not move while the notch approaches the 0 mark, then the No. 1 cylinder is at TDC.

  2. Adjust the clearance between the valve stems and the rocker arms using a feeler gauge. Check the chart for the proper clearance. Adjust the following valves in the No. 1 firing position: Intake No. 2, 7, Exhaust No. 4, 8.

  3. Turn the crankshaft 1/2 revolution clockwise. Adjust the following valves: Intake no. 1,8, Exhaust No. 3, 6.

  4. Turn the crankshaft 1/2 revolution clockwise to the top of the No. 1 piston's exhaust stroke (this is TDC for No. 6 cylinder on V8 engines). Adjust the following valves in this position: Intake No. 3, 4, Exhaust No. 5, 7.

  5. Turn the crankshaft 1/2 revolution clockwise. Adjust the following valves: Intake No. 5, 6, Exhaust No. 1, 2.

  6. Run the engine until the normal operating temperature is reached. Reset all clearances, using the procedures listed above under Engine Running.



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PictureHammer Time  -- L1 Master Technician -- 98% Positive Feedback on 2710 Car Accepts
ASE Mastertech with Adv level Engine performance cert.
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Sent February 24, 2006 1:09 a.m. (5 days and 7 hours later)
Relist: I still need help.
WHAT ARE THE CLEARANCE SPECIFICATIONS FOR A INLINE 6-CYLINDER
Customer (name blocked for privacy)
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Sent February 24, 2006 1:09 a.m. (46 seconds later)
CAN I GET THOSE PLEASE
Customer (name blocked for privacy)
Info Request
February 24, 2006 5:25 a.m. (4 hours and 15 minutes later)
I'm looking, but data like that is getting rare.

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PictureHammer Time  -- L1 Master Technician -- 98% Positive Feedback on 2710 Car Accepts
ASE Mastertech with Adv level Engine performance cert.
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Sent February 24, 2006 7:45 p.m. (14 hours and 19 minutes later)
thanks anyway bud you've done plenty.if by chance you stumble across it i'll be around,sorry to bother you with the same question more than once Hammer Time
Customer (name blocked for privacy)
Info Request
February 24, 2006 8:13 p.m. (27 minutes and 58 seconds later)

Sorry, I just did a Google search to find something and came up empty.

Most shops have thrown away all those old books.

If I was to try to use memory, something like .010 intake and .20 exhaust seems to stick but I wouldn't bet my life on it..



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PictureHammer Time  -- L1 Master Technician -- 98% Positive Feedback on 2710 Car Accepts
ASE Mastertech with Adv level Engine performance cert.
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Sent February 24, 2006 11:39 p.m. (3 hours and 25 minutes later)
I'll take it haven't steered me wrong yet if you can tolerate me you'll get all my questions alright by you?Hope so.
Customer (name blocked for privacy)
Info Request
February 25, 2006 5:11 a.m. (5 hours and 32 minutes later)
No problem at all. Keep em coming.

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PictureHammer Time  -- L1 Master Technician -- 98% Positive Feedback on 2710 Car Accepts
ASE Mastertech with Adv level Engine performance cert.

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