Problem: Ticking in 1-3 head after valve job

[logray]

Hey all.

I just finished getting the engine back in the 1999 996 C2 car and fired it up today.

It seems to run great. No DTCs or CELs, very smooth.

Except for one problem. The 1-3 head is very noisy, it seems like there is ticking from the entire bank, although perhaps more pronounced from #3. By comparison cylinder 4-6 head is very quiet, sounds normal.

I haven't had a chance to attach the PST2 but any suggestions on what to look at first?

I'm going to start by checking the spark plug torque, perhaps one is loose.

I already pulled the exhaust header on bank 1 and found that one of the bolts wasn't torqued, so there was a little exhaust noise coming from there, but that is now resolved and the "lifter like" noise is still there.

Here is a 10 second video of the "normal" 4-6 head. You can hear a faint ticking in the back ground which is actually the 1-3 head.

Here is a video of the 1-3 head that sounds like all the lifters are misbehaving.

Please give me some ideas here!!!!

Thanks in advance

Edited July 11, 2011 by logray

[logray]

Update: much to my delight, it was just a bad or loose spark plug or connection. After I removed and reinstalled the plugs on bank 1, it purrs like a vicious puma once again.

[Loren]

How a bout a video of it running well? ;)

It certainly looks good!

[logray]

Sure thing Loren, I will post one probably tomorrow!

Actually I have about 400 pictures to share as well, documenting the entire engine drop, tear down, rebuild, and reinstall.

I'm working on the website and hope to post it soon.

For now I have a couple more days of re-assembly, various suspension arms, bumper, wheels, etc.

[Loren]

You could post the pics here in a long DIY Tutorial...

[logray]

And as requested here is the "good" noise from bank 1. No tick tick tick from the plugs. And now the fabspeed muffler drone is more evident than the valves and lifters ticking away happily.

And more good noises from bank 2.

[Loren]

:thumbup: