I tried this too and didn't observe any blow-by. My car does not burn oil either, or at least not excessive. I've never actually gone 3000 miles in a decent amount of time to really gauge it. I am thinking I will just buy a new timing cover and seal and get one of Grady's totally reconditioned and sleeved pulleys. It will be an afternoon job! Andy In a message dated 4/26/2006 5:46:59 P.M. Central Standard Time, valleyrat12@xxxxxxxxx writes: Hello David, I tried the 3X5 card technique. It vibrates up and down but stays in place, it does not get blow off. I hope this indicates that my engine is OK. There is a strong vacuum from the small hose that connects to the breather and if I detach the larger hose from the air filter I feel a vacuum there too. I also observed oil seeping from the crank shaft pulley while the engine was idling, very small amount. The engine runs very well since I sorted out the Lambda issues, smooth idle and good power. An engine with worn rings, valve guides, etc would show other symptoms correct? Like burning oil? Nathan Fargo, ND 1982 DeLorean DMC12 VIN 11596 [Non-text portions of this message have been removed] To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/