What you describe sounds like nothing more than a simple exhaust leak. Check the header/manifold gaskets first. If you have headers, check the collector gaskets too.
-Dave -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Pelle Andersson Sent: Wednesday, May 11, 2005 4:57 AM To: [email protected] Subject: RE: [Chevelle-list] Heads? The ticking only occurs when I accelerate and put some load on the engine. For example when I'm accelerating a bit hard from a redlight or making a quick takeover on the highway. Never when i cruise (at least I can't hear it). But I'll follow your advise an check the engine first! It might need an overhaul? Best Regards Pelle >From: "Brad Waller" <[EMAIL PROTECTED]> >Reply-To: The Chevelle Mailing List <[email protected]> >To: "'The Chevelle Mailing List'" <[email protected]> >Subject: RE: [Chevelle-list] Heads? >Date: Tue, 10 May 2005 16:41:57 -0700 > >Aluminum heads are fine. The ticking could be a lifter going bad, a rocker >that is getting loose, a worn lobe on the cam (causing the rocker to be >loose), a bent valve or pushrod (again causing the rocker to be loose), and >more. Before you swap out heads, you need some more diagnostic work to see >what might be going on. Static compression, leakdown test, check the valve >lift, check the valve lash, then you can worry about pulling the intake and >heads and looking for more things. > >I ran unleaded with my old iron heads for years and I never saw any >problems. I've been told that the problems are only for those who run the >car for long periods at high load (such as racing) or high RPM. If you are >driving it hard and having fun, you are probably OK with unleaded fuel. > >Brad Waller ([EMAIL PROTECTED]) > >'66 Corvette | 327/dead | 4-speed | Wilwood Brakes | 245/45/16 BFG R1 >'67 Chevelle | ex-SS396 | 355/700R4 | F-Body Brakes | 275/40/17 Kumho MX > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of > > Pelle Andersson > > Sent: Tuesday, May 10, 2005 1:25 AM > > To: [email protected] > > Subject: [Chevelle-list] Heads? > > > > Aluminium heads on a cast iron block? > > Is that a bad idea? > > I've got a beginning ticking sound i one of the valves so I'm > > planning to either restor the heads or buying new > > aluminium race prepped heads. I also want to be able to > > run the car on unleaded fuel! > > > > Have any of you any experiences fo aluminium drive shafts? > > Pros, cons? > > > > What is your suggestion? > > > > _________________________________________________________________ > > Don't just search. Find. Check out the new MSN Search! > > http://search.msn.click-url.com/go/onm00200636ave/direct/01/ > > > > > > > > > _________________________________________________________________ FREE pop-up blocking with the new MSN Toolbar - get it now! http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/
