Turbo6Smackdown
Well-Known Member
- Joined
- Dec 31, 2005
- Messages
- 6,110
I was studying vacuum readings, and stumbled upon two different diagnoses. (lower than normal with a very fast 3-4 inch variation) I have Holley saying it may indicate an ignition problem, and that wouldn't surprise me whatsoever as I think I'm hearing a very slight miss at idle. Though Mityvac's directions claim worn valve guides. Anyone here have similar problems in the past? The link to both sites that I got my information from are below. Could any experts help explain this further?
(I have #3 in this video)
http://www.mityvac.com/user_manuals/07000-06820.pdf (page 9, "valve guides" paragraph)
http://www.mityvac.com/user_manuals/07000-06820.pdf (page 9, "valve guides" paragraph)