454 Valve Adjustment Recommendations (Easy!?)

[Chevy454CUCV]

Hey all, I found what looks to be a great way to adjust valves that I'd like to try and wanted to see if anyone else has had success / issues with using this method for an engine that is just getting an adjustment and not brand new. This will be for my K30 with a 454 750 CARB.

I've adjusted an older 350 while running and that seemed to do ok but this method seems like it could be even easier and a bit more precise.

Eager to hear what you guys think!

 

[76zimmer]

seems to work...although I was taught to put the lifters in an oil bath overnight, pumping them full of oil prior to install, and really you should be checking for valve to piston clearance before getting to this point, but thats a whole bunch earlier in engine building.
I have a couple solid lifter engines as well as many hydraulics I've built and it works well for me. I use this method on a new engine, with the intake off (for better visual on the lifters)...the engine never having been run, and rockers are all loose:
as you turn over the engine clockwise by hand, watch the lifters on #1 cyl. When you see the exhaust lifter (first one from the front of the engine) closed and the intake has opened and is closing, watch for #1 to come up to TDC. You may have to put a little pressure on the lifter to make sure it follows the cam and not just resting in the lifter bore.When at TDC both lobes are on the base circle of the cam lobe and should be down in their bores. Now tighten the rockers to zero lash by turning the pushrod (as he does in the video) being careful not to push the pushrod into the lifter...for hydraulic, tighten 1/2 turn more, or as cam manufacturer states. For solid lifters, now is the time to set cold lash....if no spec on the cam card for cold lash, then set them .005 more than spec. Now rotate through the firing order (as he states every 90*) and set the next cylinder the same way. Two full revolutions and you should be back at #1 again and your lash should be where you put it in the first rotation. If running solids, break in the cam, then set the lash again hot by the cam card.

 

[imiceman44]

Hey all, I found what looks to be a great way to adjust valves that I'd like to try and wanted to see if anyone else has had success / issues with using this method for an engine that is just getting an adjustment and not brand new. This will be for my K30 with a 454 750 CARB.

I've adjusted an older 350 while running and that seemed to do ok but this method seems like it could be even easier and a bit more precise.

Eager to hear what you guys think!

Not sure if you want to adjust the valves on a rebuild or an engine that needs maintenance. If it's a used engine and you just need to get the adjustment better
I don't know why they do 90 degrees and one cylinder at a time.
I learned set 1 at tdc and adjust the valves on 1 and half of the other cylinders.

Then rotate full 360 and adjust the other valves and you are done.
Each cylinder will have either exhaust or intake valve fully closed.

 

[imiceman44]

Here it is https://www.jalopyjournal.com/forum/threads/tech-a-simple-way-to-adjust-valves.168345/