Recent content by kaj750

The shop may have said 2k RPM and I'm remembering it wrong. Compression is a mystery as I don't know the specs of the pistons. Comp test shows 155psi. No idea how the cam is degreed. Definitely should not be over 10.5:1, though. I'm currently filling will 91oct each time I get gas, I used to use...

update: New rocker shaft with old rockers. New lifters in. They make more noise on startup than the old set, but I don't care. Everything else works so much better. Timing issue: I had someone check the car and they told me they were seeing 33* at 3k RPM. My ECU is tuned to 26. When I run the...

Update: I found a crack in one of the boots of a spark plug wire, distributor side. Another had a bit of the boot melted away on the plug side. Replaced both and the knock went away. I'd suspect spark was jumping from the boot on the distributor. The crack was almost impossible to see. I...

Lifter tick.

Installed new lifters. Broken in with assembly paste, high zinc oil, and zinc additive. Car started and ran great. Still does except: When idling, I get a random detonation knock. It's only one and it's approx every 5-10sec while idling. I do have EFI so wondering if I contaminated the O2 sensor...

Update: pulled 2° of timing out and the noise seems to have went away. Finally a win for the home team lol

I hope not. Looking at the information I can find for the engine build, the compression shouldn't be that high. When I did a compression check, I was only seeing about 155 on each cylinder.

The ignition system is electronic and adjusted via Sniper 2. It didn't make this noise before the R&R. I used to have a slight bit of detonation under certain circumstances. The tuner got as much out as he could. It would still, occasionally, rear it's ugly head, but NOTHING like this. Funny...

I cut the shafts into pieces and removed the rockers. Everything else looked great, so reinstalled with new lifters and shafts with original rockers. Set lash. After break in, car idles and runs great but has hellacious (I think) valvetrain noise with any load applied. No way it's detonation...

With the ends crushed and the center not, the shafts couldn't have been straight. New shafts arrived today. As soon as I feel better, I'll be installing.

Can a car be driven for break-in to keep the RPMs going? I don't think my neighbors would enjoy my car idling in the driveway at 2000 to 3,000 RPMs, for 30 minutes. Lol

I know, that's why I said it.

They spin perfectly fine until I slide them towards the mounting holes. They move about a rockers with in either direction. Every forum has the "I'd replace everything and upgrade so I'm future-proofed" group. I post/read quite a bit before taking advice. That's one of the reasons. :) I read...

Okay, okay. I didn't mean to get you so fired up, just reporting on what I found. That’s *kinda* what I thought was going on, but I didn’t see that happening at 25ftlbs or whatever the torque specs is. They aren’t exactly thin. Assuming that’s what wrong with them, then holy crap someone must...

I think the rocker adjusters were set with too much preload. I have everything back together. I haven't turned the engine over to set adjustments yet... but, out of curiosity, I adjusted all of them (since I don't know which cylinder should have the valves closed) until the pushrods stopped...