Vanagon valve clatter can be incredibly loud and scary sounding for those who are not familiar with it!  It is a more metallic sound than the deeper clunking sound from a bad bearing, kind of the difference between hitting metal with a carpenter's hammer vs. with a sledge hammer.  In fact, it is the flat lifter "hammering" on the valve train as it is flung off the cam.

If these guys have not heard it before, they could be chasing ghosts. They should find what appears to be an out of adjustment valve with a large gap, but you don't want them to tighten it down!!  It's just the flat lifter causing that.

If your oil pressure is good, just drive it with the rpms around 3000 for 3 to 5 miles before they do anything to your engine.  You can do this around town by staying in a lower gear, or jump on the freeway if traffic happens to be moving!

Stuart

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Marc Perdue
Sent: Wednesday, July 08, 2015 7:00 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Help! Weird noises after installing injectors...

Update: They're still investigate the clattering noise in my engine.
It's coming from inside the engine on the passenger side and is definitely not noisy lifters. They were in the process of trying noninvasive diagnostics to try to find the problem but had pulled the valve covers off to investigate. Guess I'll find out more tomorrow, but at least I know it's in good hands now.

I was thinking that my engine was pretty new and started digging around only to find that it's about 11 years old. Not sure how many miles on it, but it can't be that much; I drive it about 5-7K miles a year, I think.

More news at 11 . . . Sigh . . .
Marc Perdue