Adjusting the lifters

[PhoenixFear]

I got a set of adjustable lifters from Red's and now have everything in and ready to adjust. I believe I brought cylinder 1 up to TDC on the compression stroke, however both valves are still open. I'm assuming I'll need to turn the adjusting screw on the lifters way down to bring the valves fully closed and then adjust them, right? I want to make sure so I don't screw it up. Here's a picture of the lifters and valves, as you can see I adjusted one lifter down a bit for comparison. Thanks.

[bbrocksr]

Are you sure you are on the compression stroke? Turn it one complete revolution with the piston at TDC and see where the valves are. The valves will be open slightly at TDC during the overlap between the exhaust and intake strokes.
Bill

[PhoenixFear]

I'm pretty sure it's on the compression stroke. I noticed when turning the engine none of the valves close fully which makes me think they need to be adjusted way down.

[Walt Dupont--Me.]

You've got the right idea. To make sure your on comp stroke turn engine right hand rotation and watch intake valve open and start to close, the piston will be coming up, with piston coming up and the intake valve closing, when the piston is at the top that will be compression stroke. You can adjust both valves on that cyl. However, I adjust all my valves on the heel of the cam. I do all this before installing pistons, it makes it easier to turn over. I just go right down the line. Turn the engine over untill the valve is high lift, It's kind of easier to find top lift by watching the lifter as you turn the crank, you can tell when it's high and starts to drop down, at that point turn the crank one turn and the cam will turn half turn and the lifter will be on the heel of the cam. Walt

[Mart]

Move the crank a few degrees either side of TDCon No.1. Are either of the valves moving? How about the valves on number 6? Are either of them moving? One will move one side of TDC and the other the other side of TDC.

If the valves for No6 cylinder are moving, you are indeed on tdc for No1. If No1 valves are moving and No6 are not moving,you are 180 degrees out on the cam. Turn the crank 1 full turn to get No1 at TDC on the firing stroke.

Mart.

[flatheadfan]

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This is the sequence I use:

When you pull of the intake you will find one of the combinations listed on the left. If you find an “a” set opened you use all of the “a” sequencing. If it is a “b” use all the “b” sequencing and so-forth. sequencing.

Hope this helps. Tom


Valves Opened - Adjust these

a) 4X -- 1N ---> 3X- 3N- 8N- 6N- 7X- 2X

b) 8X – 5N ---> 1X- 7N- 6N- 7X- 3N- 2X

c) 6X – 4N ---> 5X- 2N- 1X- 7N- 3N- 2X


a) 3X – 8N ---> 1X- 7N- 5X- 2N- 4X- 1N

b) 6N – 7X ---> 5X- 2N- 4X- 1N- 8X- 5N

c) 3N – 2X ---> 4X - 1N- 8X- 5N- 6X- 4N


a) 1X – 7N ---> 8X- 5N- 6X- 4N

b) 5X – 2N ---> 6X- 4N- 3X- 8N

c) 4X – 1N ---> 3X- 8N- 6N- 7X

[flatjack9]

I'm with Walt. I adjust all mine on the heel of the cam. And it is definetly easier with out the pistons installed.

[ajmac]

I was adjusting lifters last weekend, out of the box they are much longer than required, I set up an inlet and exhaust lifter in the engine, removed them and measured them, then set the seven to exhaust length and seven to inlet length. I built it all up and then made slight adjustments to get the correct feeler gauge in. Much easier then screwing in all those turned with the lifter in the engine! I had mine on a build stand, just turn it on its end and look in with a light to ensure you are on the base circle on the cam lobe when checking lash.

[Ol' Ron]

I find the best way to adjust lifters is.--------- Let5 someone else do it.

[Brian]

Words of wisdom from Ol Ron!

[keith oh]

Darn, I thought Ol Ron would be "That someone"

[Ol' Ron]

Make sure you remove the sharp edges from the intake surfaces. Everybody has their way to do it, but you always miss one.

[36tbird]

I'm gonna save flatheadfan's sequence tip to use. But, here's a corollary question that I might figure out on my own, but maybe someone has it already. What valves are open when #1 is at or near TDC? I ask because before buttoning up the engine I have now, I am going to check the lifters one more time and put some green loctite on them. During this process I thought I could install the distributor.

[Ol' Ron]

The lazy man's way to adj the valves iz to bring the valve up to it's highest lift, and turn the crank one turn. Now that valve is on it's heal, adj. it. so after 16 revolutions they are all adjested, put an X on them with a marker.