View Single Post
911pcars 911pcars is offline
Registered
 
Join Date: Jul 2000
Location: So. Calif.
Posts: 19,910
Could be very worn valve guides. Try a vacuum test:



It's not definitive, but an indication. Big difference doing head work versus rings/pistons/cylinders.

more gauge pics: Blowby Discussion

Hope this helps.
Sherwood
Old 06-08-2010, 06:56 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #12 (permalink)