Adjust Push rods w/rocker boxes installed

[Flhfxd]

Have to install a set of Quickee adjustables on an EVO and would rather not disassemble the rocker boxes. Whats best practice for finding base circle of cam for doing rear cylinder? Front piston is at TDC now with cam at base.
Thx

[longshooter]

Flhfxd,

Not enough to be at TDC. You must be at TDCC, compression. Just watch the intake lifter move up, then down. At this point it's on compression stroke. Set piston at TDC and adjust lifters. Repeat at rear cylinder. Done.

longshooter

[Flhfxd]

Yes. Front piston is at TDCC. What are the lobes from inside to out: rear intake / front intake / rear exhaust / front exhaust? Is that right?

[Hossamania]

Correct. As you look at them left to right: rear exhaust, rear intake, front intake, front exhaust.

[Flhfxd]

   Hang on, that's different

[hbkeith]

 

[Hossamania]

  Hang on, that's different

You mentioned from the inside to the outside, that is a little confusing, so I just went from left to right as you look at the pushrods. The inside rods are intake, the outside rods are exhaust.

[Flhfxd]

Oh boy.....
Imagine the cam as it is installed, now then, starting at the innermost lobe, which lobe is which as you progress to the outboard lobe?

[Hossamania]

Well, I was no help at all, was I?

[14Frisco]

Imagine the cam as it is installed, now then, starting at the innermost lobe, which lobe is which as you progress to the outboard lobe?

rear intake (innermost), front intake, rear exhaust, front exhaust (outermost)

[Flhfxd]

Imagine the cam as it is installed, now then, starting at the innermost lobe, which lobe is which as you progress to the outboard lobe?

rear intake (innermost), front intake, rear exhaust, front exhaust (outermost)

Right. Thats what I said earlier. Just asked to make sure. Thanks.

[FSG]

a birds eye view says it all   

[Ironheadmike]

It really doesn't matter what stroke you are on or which pushrod you start with , as long as the pushrod is all the way down .

[thumper 823]

TRUE!
I have been reading all this .
Whew , it got too complicated for a very simple procedure.

[Flhfxd]

Isn't all the info just a way to do both intake and exhaust at same time on same cylinder? You're saying it doesn't matter?    Wondering about the logic. Thanks.

[Ironheadmike]

It don't matter which pushrod you do first . But you can only do one at a time so the lifter can bleed down before you rotate the engine to do the next one . Let it bleed for at least 15min before moving on .

[BKACHE]

And I have always found doing the intake first is easier than having the exhaust in the way doing the intake after the exhaust.

[Burnout]

I use a different method to adjust valves.

I rotate the motor incrementally and set all valves to zero lash, then rotate the motor through again to check that all are at zero lash.
Then I set the preload 1 valve front then 1 valve rear and by that time I should be able to set the other valve on the front then rear.
That gives time for the lifter to bleed down and avoid any clashing when the second valve is adjusted.

[Hillside Motorcycle]

Super-simple is when, say, the rear cylinder exhaust exhaust is all the way up, the front cylinder exhaust will be all the way down, and vise-versa, same/same for the intakes.

[JW113]

The piston does not need to be at TDC or any other position. The only thing that matters is the tappets must be at the bottom of their travel. And a very easy thing to tell.

Suck-squeeze-bang-blow.

Jack the rear wheel off the ground, pull the plugs, and put it in 5th gear. I use my left foot and spin the tire with two fingers on the tappets on the cylinder I'm adjusting. As it spins over, you feel the exhaust tappet go up (blow), and then the intake tappet goes up as the exhaust goes down (suck). When the intake is all the way back down (squeeze), you're good go! Adjust them both, tighten, and wait until you can spin the pushrods with your fingers (tappet bleed down) before moving on to the other cylinder.

-JW