- Mar 25, 2014
- 69
- 1
- 9
well my last post was not the best being about a broken rocker stud. Since then I have hand tapped (Don't get too angry) the old stud holes and installed screw-in studs. I am not using guide plates with these studs, they are Mr.Gasket brand. After the stud install I went ahead and got Comp roller rockers with push rods since a couple of my original rockers we badly worn. These new components have maybe 3 miles and 30 minutes of run time on them and all the proper procedures were taken when installing. (comp break-in lube, proper valve adjustment) After a few minutes of the first fire up I noticed a small tapping still coming from the driver side of the engine, it had not seemed to bad till the last little ride. I pulled the valve cover and to no surprise number six cylinder, both intake and exhaust rockers were way loose, intake more than exhaust. The stud has not unscrewed, the nut has not backed off. I readjusted properly and the noise is there immediate. I took the rockers off to switch to a different cylinder in case something was wrong there and that's when I noticed the rocker end of the push rods worn. Luckily the rockers show no signs at all of damage.
What do I do now? Is it a lifter? There was a slight miss but barely noticeable. The Cam, lifters, push rods, studs, rockers, springs/retainers/locks, all have under 5 miles on them. I remember when I first fire'd the engine for break in I had a loud ticking from the spot that led to the broken stud and now the worn push rods. All the other rockers on the driver's side still seem to be adjusted properly and have no excess play. I just need to get some ideas before I go pulling the intake. I am ruling out a flattened lobe for now (while not completely) mostly because if it was flat I was have pretty much a dead cylinder and plus the noise started right away during the break in. I have two pictures of one push rod, it is the exhaust valve, the intake rod is not far behind.
Good news is I just bough a 77 hatch the other day. More on that later. Thanks in advance!
What do I do now? Is it a lifter? There was a slight miss but barely noticeable. The Cam, lifters, push rods, studs, rockers, springs/retainers/locks, all have under 5 miles on them. I remember when I first fire'd the engine for break in I had a loud ticking from the spot that led to the broken stud and now the worn push rods. All the other rockers on the driver's side still seem to be adjusted properly and have no excess play. I just need to get some ideas before I go pulling the intake. I am ruling out a flattened lobe for now (while not completely) mostly because if it was flat I was have pretty much a dead cylinder and plus the noise started right away during the break in. I have two pictures of one push rod, it is the exhaust valve, the intake rod is not far behind.
Good news is I just bough a 77 hatch the other day. More on that later. Thanks in advance!