I don't know I've just never had a problem with synthetic oils and I've run them in everything. Some of our vehicles are a lot older than this. I may give regular oil a chance, but I don't think the synthetic oil is the cause of this problem.

 

i have some kinda clicking noise in my valvetrain somewhere too i think ! i really dont know what it is and i really dont have the time too fiqure it out either.. just sounds like a constant clicking when accelerating does it cold or hot dont matter

 

a spring wouldnt do that

a lifter that leaked down would

you also can move to a heaver weight oil see if there is a change

lastrights,,, re tq your rockers

 

Why is everyone so worried about lifter tick? Just about every old pushrod engine has it and they stay on the road for thousands of miles. We have roller lifters in our trucks, there would have had to be a serious failure for a roller lifter to destroy a cam. My truck has a very loud lifter tick or piston slap or wrist pin failure or something (maybe all three) and it just keeps on going just like hundreds of thousands of other vehicles.

 

never wiped a cam lobe. Never heard of that in a roller tappet engine.

a deflated lifter is a heck of a loud racket. when I replaced them all about a year ago, I thought for sure I FUBARed something putting it all back together and was looking at a new motor. after it ran about 4 minutes, it smoothed right out, but it was about 4 minutes of sheer white knuckle, oh ****!, terror.

 

So did your deflated lifter make the noise all the time, or only when you started it up? Mine is a heck of a noise too until the oil pressure builds.

Also so are you saying it's safe to drive and won't hurt the cam or anything else? Or is that not what you are saying? How hard were they to replace?

 

Yank the manifold, valve covers, and rocker arms. Pull the spider off that keeps them from jumping out, out with the old, in with the new. Reassemble. If you have done your plenum, you have already done most of the work once, and were lookin' right at em. Really isn't that bad of a job. (provided you dont break any intake manifold bolts......) Keep track of where things like pushrods, and rockers come from. They wear together, and if you shuffle them around, they will be mad.....

If it only ticks until oil pressure comes up, you may never have more of a problem that what it is doing now.

 

If changing the oil to 10w40 dino once doesn't help, add about 1/2 pint of transmission fluid into the crankcase (forget that marvel mystery/rislone bs).

If you still have the noise after that, it could be a significant issue. But like someone else previously said, many of the older engines tend to make some noise after a while - it may not necessarily be quite as bad as you think.

 

I never had a deflated lifter. I was putting in a new cam at the time and decided to replace them. The new ones were completely flat and needed to pump up so the racket was pretty intense.

If the lifter is declaring, then there is a spring in there to hold the lifter cup to the pushrod to keep it in line. Its obviously not made for repeated abuse or we wouldn't need the oil pressure to keep it quiet.

 

That's deflating, not declaring.