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-   -   Hello...SBC valve adjustment (http://www.hotrodders.com/forum/hello-sbc-valve-adjustment-227804.html)

Thomas Sutton 12-31-2012 09:05 PM

Hello...SBC valve adjustment
 
I hope that i can get some informaion about my engine,i:m tring to see how to ajust the vales on my chevy sb 355 i have a soild cam not sure about the engine or the heads,tu:welcome:

carolinacustoms 12-31-2012 09:34 PM

Welcome to the forum and Happy New Year. I'm sure one of the Chevy guys will be along in a few to help you out. I was going to try to explain it, but realized it would probably take me two or three pages and I'm sure someone can be a lot more informative in a much shorter post LOL. A little more info may be helpful to them though. Have you ever adjusted valves on a solid lift cam? Or a Chevrolet based engine?

delawarebill 01-01-2013 08:55 AM

valve adj
 
try finding a manual that tell u what lifter is at bdc at TDC on the balancer then u adj about 1/2 the lifters then turn the crank one full turn and do the remaining lifters.. u will need to know the cold feeler gage setting. tighten the rocker down till u have a snug fit when pulling it out. just don't over tighten the rocker, that will equal a bent push rod. i know a motors manual gives u this info.. keep in mind when u fire it up it will click and always have a small clicking. there solid not hyd..

bondo 01-01-2013 09:02 AM

Quote:

Originally Posted by Thomas Sutton (Post 1629296)
I hope that i can get some informaion about my engine,i:m tring to see how to ajust the vales on my chevy sb 355 i have a soild cam not sure about the engine or the heads,tu:welcome:

Ayuh,.... All cams are solid,.... but What lifters are ya usin',..??

delawarebill 01-01-2013 09:06 AM

i thought he was talk'n solid lifter cam..
 
sure hope so.. or thats my first mistake... today that is and its early...

Thomas Sutton 01-02-2013 12:00 AM

Thanks delawarebill, also i have solid lifter. there:s alot of information i did:nt get when i bought this race car,however i have some. I could be wrong but i think i can use ur infom. thanks again ,and have a healthy new year.

techinspector1 01-02-2013 12:37 AM

https://www.youtube.com/watch?v=3gMYWLMAzao

1971BB427 01-02-2013 10:18 AM

One issue you'll need is to determine valve lash on your engine's solid lifter setup. If you were using hydraulics the lash are all the same, but solids require different lash from manufacturer's specs. The old Duntov 30-30 was set as the name indicates, .030" lash intake/exhaust.
Some mfg. spec similar clearances, but some spec less. Most don't spec more than .030" clearance. Most modern Comp Cams are .022" lash. You could get somewhere around that lash and hope it's close enough.

cobalt327 01-02-2013 01:54 PM

Quote:

Originally Posted by Thomas Sutton (Post 1629296)
I hope that i can get some informaion about my engine,i:m tring to see how to ajust the vales on my chevy sb 355 i have a soild cam not sure about the engine or the heads,tu:welcome:

Adjusting solid lifters

Good luck.

DeeW 01-04-2013 05:31 AM

Adjusting Solid Lifters
 
Aside from getting the valve lash correct, the procedure per cylinder is crucial. I have tried every procedure, but find the best and easiest for myself was an individual firing order adjustment rotating the crank, starting at TDC and proceeding to the next firing cylinder. Like I said, I start at TDC on the crank and adjust No.1 firing cylinder valves ( both intake and exhaust ) to specs. I then turn the crank 1/4 turn in direction of firing rotation and adjust the valves for the No. 2 firing cylinder. Continue this through the cylinders until you are back at TDC and you are good to go. This works for all 4,6,8 cylinders and I find keeps things a little simpler. Good luck.

cobalt327 01-04-2013 09:09 AM

Using TDC will work most times, unless the cam is way big or it has very long clearance ramps, like the Duntov 30-30 cam.

If TDC is going to be used, at least verify that the lifters are not on the clearance ramps by setting them at TDC then check using the EO/IC method. If there's no change in the lash, you're good to go.

DeeW 01-04-2013 09:38 AM

Adjusting Solid Lifters
 
Cobalt 327 Valuable, accurate information.


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