Re: [Amc-list] So - how do you adjust valve lash hot and running?

[Jim Blair <carnuck@xxxxxxxxxxx>]

When I set the valves, I have the motor warmed all the way up, but shut it off for adjusting. When you do it, first equally mark the harmonic balancer (2 spots at 180 degrees apart for 4 cyl from TDC, 3 spots at 120 degrees including TDC for 6 cyl, 4 spots for V8) into "slices". 
   I will just deal with 6 cyls for this: Find the overlap point of the cyl you are starting with (with the motor turned to TDC, either #1 or #6 will be with both valves barely closed so if you move the motor slightly one way or the other an exhaust or intake will open) Whichever is at overlap, the other will be at BDC and the bottom of the cam circle.
   If it's #1, then rotating the motor 120 degrees to the first mark (clockwise looking at the front of AMC 6 cyls) will be #5 BDC, then rotate again and it's #3. (it goes by firing order and you rotate the motor twice to get them all)
1-5-3-6-2-4 for almost all INLINE 6 cyls (some early IH 6 cyls fired 123654 but ran pretty rough)

Jim Blair, Lynnwood, WA '87 Comanche, '83 Jeep J10, '84 Jeep J10
From: Joe Fulton 
Subject: Re: [Amc-list] So - how do you adjust valve lash hot and
	running?
To: "AMC/Rambler owners, drivers and fans." 
Message-ID: 
Content-Type: text/plain; charset=us-ascii
 
Bruce,
 
Adusting the valves like to did with the engine running is fine.  You will develop a feel or "touch" for how tight the valve stem grips the feeler gauge with the engine running.  I'd say you did good and if you have no excessive valve noise, they are almost assuredly close enough.  However, you can (with the warmed up and turned engine off) roll the engine manually and re-check the valves individually.  Warm it up and learn how to check that the lifter is on the base circle of the cam when you are checking the valve adjustment.
 
Joe Fulton 
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