valve spring strenght.
 

if you are going to set your engine up for a few months would it be best to back off the lash to keep tension off the springs are is it not nessasary.
434 sbc 700 lift comp cam Dart pro 1 58 cc heads w/Jessel rocker system
Thanks Andy

Back them off, leaving all valves closed.

JMO

Zip.

I would back them off and do like DrivingMissDD said, spray some WD-40 into the motor. JMO

TS1955

After rereading the inital post he's got a Jessel system, he has no option except to remove the rocker assy, since if the geomerty is set right he only has 1 full turn adjustment. 7/16"X20 pitch=.050 total adjustment. I believe Jessel is like T&D's and they recommend 1 turn from full backed up adjuster as to where the geomerty should be.

Zip.

Heres what I do.
I live in the south and this may not apply to you, just my 2 cents.


I have T/D's and instead of taking the rocker arm assemblies off I just make a habit of spinning the motor over about once a week, on warmer days I'll crank it up and let it idle till it gets to normal operating tempature and call it good.

Cp

I just turn the crank every few weeks. That's what I've done for years and what ReherMorrison recommends on their engines......

I agree with zipper on this...I have a T&D on a BBC, and I always remove the rocker assemblies on the cylinder that are affected by the cam lobes being up on that cylinder.

TS1955

Thanks guys I can spin it over or crank it every week or take the rocker shaft off I just want to do what is best.
Andy

Come on now. Do we think you will really losen the valves vs cranking the monster every one in a while? :lol: :lol:
Dave