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Bill, I might be out of line here, and I'm sure someone will straighten me out if I am, but in Corvair circles what you've described are the classic symptoms of a loose/wedged in at an angle/ or dropped valve seat. Especially the part about when you came off the fwy and heard a pop sound and /a+ running rough since. I'd try a compression check to see if maybe the seat is not letting the valve seal properly - hense your problem. Could be something else as well, it just sounded like a seat came loose to me. My .02. Regards, Tom Cloud '69 Fasty! '69 Bug Bill Niles wrote: > > I recently did the tune-up on my notch and things were great. The car > seemed to be running fine. > > Sunday I took it on long road trip, about 400 miles. The car did fine, even > on the hills. > When we got back, something didn't seem right. It doesn't run quite as > smooth, and it just doesn't sound right. It sounded a lot smoother before. > Now it sort of sounds like a lawn mower. > Also, I noticed that when I was coming up to a stop sign and I let off the > gas and let the engine slow me down it *popped* a couple of times. It > wasn't a real loud pop but it did it 2 or 3 times. > > This morning when I got back home I checked the timing with a light and it > looked just fine. I also checked the point gap to be sure it didn't "self > adjust". > > So anyway, anyone have suggestions? > > It's just not as smooth as it seemed yesterday before the trip. Doesn't > start quite as easy either. > > Thanks, > Bill > > ------------------------------------------------------------------- > Unsubscribe? mailto:type3-request@vwtype3.org, Subject: unsubscribe