You know, that sounds logical actually- since I'm only hearing it when the car is moving. And I haven't been back to those bolts since the engine went in the car in '03.
Jim --- Carl Ziegler <[EMAIL PROTECTED]> wrote: > Check your torque convertor bolts, that will also > cause that type of noise. > > ----- Original Message ---- > From: J. Brady <[EMAIL PROTECTED]> > To: The Chevelle Mailing List > <chevelle-list@chevelles.net> > Sent: Friday, November 10, 2006 5:58:12 PM > Subject: Re: [Chevelle-list] 327 question > > That's exactly what I think it is Carl, sounds like > a > wrist pin or piston slap to me. > > I don't recall hearing it when in the driveway, only > when out on the road. > > Jim > > > --- Carl Ziegler <[EMAIL PROTECTED]> wrote: > > > Does it only happen when under a load or can you > sit > > there and rev it to hear it? I would try to > retard > > the timing a bit to rule that out as well, just to > > see... I had lifters act like that as well on a > > 283, no clatter until a certain RPM, sounded like > a > > rist pin or piston slap. My $.02 > > > > ----- Original Message ---- > > From: J. Brady <[EMAIL PROTECTED]> > > To: Chevelle Group <chevelle-list@chevelles.net> > > Sent: Friday, November 10, 2006 5:35:46 PM > > Subject: [Chevelle-list] 327 question > > > > Drove the '66 to work today, and decided to throw > > this > > question out to "the Council": > > > > My car runs great, and the 327 has an aluminum > > intake, > > speed pro 10.5:1 pistons, crane powermax cam > > (272/284), Comp Cams roller rockers, and freshly > > built > > camel hump heads with pinned in studs. Valves > have > > been redone within the past 2-3 years with MAYBE > > 1000 > > miles on them, and I have new valve springs and > > retainers (also Crane, to match the cam). > > > > All that being said, it runs great with one small > > pet > > peave.. When I drive the car it runs flawlessly > > UNTIL > > I get to 2000 RPMs on the tach, at which point I > > hear > > a slight "chatter". That's the only way I can > > describe it. I've heard hung up lifters before, > and > > that's not the noise- that's a chronic > > "tap-tap-tap-tap" (like 1-2-3-4). This, in my best > > impression, goes "dadadadadadada" in a much faster > > interval, thus the chatter description. It sounds > > like it's on the driver side of the engine, and > > happens ONLY at 2K RPMs.. I drop back, it goes > > away- > > I increase throttle PAST 2K RPMs, it goes away. I > > thought maybe it might be something bumping the > > dipstick or something stupid like that, so I moved > > the > > dipstick and it still happens. > > > > I don't think it's worth pulling the engine back > out > > to check, but it's damned frustrating. Anyone > have > > any guesses? I do not have valve guides and I > > wondered if it might be that I need them. Another > > note, I had the same noise when I had my 260/272 > cam > > in it, which I just swapped out to the 272/284 as > of > > this year. I thought maybe the disassembly and > > reassembly might make it go away (with > readjustment > > of > > the valves), but it's still there so I'm guessing > > it's > > lower end noise. But from where and why ONLY at > > that > > revolution? > > > > Thanks in advance, > > > > Jim > > '66 Malibu > > > > > > > > > ____________________________________________________________________________________ > > Cheap talk? > > Check out Yahoo! Messenger's low PC-to-Phone call > > rates. > > http://voice.yahoo.com > > > > > > > > > > > > > > > > > > > > > ____________________________________________________________________________________ > > Want to start your own business? > > Learn how on Yahoo! Small Business. > > http://smallbusiness.yahoo.com/r-index > > > > > ____________________________________________________________________________________ > Do you Yahoo!? > Everyone is raving about the all-new Yahoo! Mail > beta. > http://new.mail.yahoo.com > > > > > > > > > > ____________________________________________________________________________________ > Do you Yahoo!? > Everyone is raving about the all-new Yahoo! Mail > beta. > http://new.mail.yahoo.com ____________________________________________________________________________________ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com
