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One thing I don't quite have my brain wrapped around:
How does the lifter not collapse when there is no oil pressure?
I don't have an appropriate dial indicator. I doubt the engine has fifty hours of run time.
Another question is why the variance of preload opinions? My old Chiltons says a full turn, but I've heard 1/8, 1/4, 3/4,&1 turn.
You have been posting about this since last July----now you say you are down to just one clicker---------------tighten that one up a full turn to see if it goes away----if it does , back it out 1/2 turn to see if it clicks again----clicks, retighten, don't klick, loosen 1/4 turn, clicks retighten, don't klick,loosen some more----find the place it goes away---------------if you can;t get it to stop, you need to look at the rocker, valve tip, spring, push rod, etc------------find whats wrong-------but if its just not adjusted yet, start wrenching-------------then drive it---------------
There is no statue of limitations on projects. Lots of build threads here are years in the making.
Anyway, success. Valves are silent, no backfires, sounds strong.
Yeah, no statute of limitations, but making a year long "project" out of adjusting lifters?:eek::LOL::LOL: That's patience, I'd say!! Regardless, glad you got them adjusted to your satisfaction and that it's all quiet, sounds strong and is running right! Good deal!;)Quote:
Originally Posted by firebird77clone
To answer your question of why a lifter doesn't collapse with zero oil pressure---------there is a check valve that holds the oil in the lifter during the opening of the valve--when the valve spring pressure ISN'T back loading the check valve, the engine oil pressure can take up the unloaded clearance(ZERO clearance)keeps the noise down
Glad you finally got that job done and got them quiet! Now what's the next job?
Fan shroud. I want to try a hammerform mold, and I have some aluminum sheet which should be ideal.
HMmmm... just want to "play"?
Ever since I watched a hammerform video, I've wanted to do a big piece, only done small pieces so far.
Also, I think the car gets the credit for patience. To its credit, it has quietly sat there awaiting my clumbsy efforts, in between other jobs, projects, and honey-do-s