[Chevelle-list] Engine noise!

[John Nasta]

Unfortunately you should not have taken the heads off. You should have  
tried draining a pint of oil and replacing it with a high-detergent  
oil (like Marvel Mystery Oil or transmission fluid) for 100 miles or  
so and then changing the oil and adjusting the valves. You probably  
could have gotten the tap out and you would have been driving again in  
no time.

What makes you thing it's a worn cam rather than a bad lifter?

Even if it is a worn cam, why would you have the block machined? You  
have to take the intake manifold off to replace the cam and/or  
lifters, not the heads.

Sorry, but none of what you wrote makes a whole lot of sense to me. I  
don't know the whole story but it sounds like you made things go from  
bad to worse.


Quoting Pelle Andersson <chevellegearheads at hotmail.com>:

> Now I know what it was!
> A worn down lobe on the cam (#8)
> I removed the heads just to check and found out that #8 had problems.
> I have to leave the block for some machining :-(
>
> No driving this summer :-/
>
> http://www.flickr.com/photos/pellechevelle/sets/72157600027680861/
>
> Pelle
>   ----- Original Message -----
>   From: Pelle Andersson
>   To: The Chevelle Mailing List
>   Sent: Friday, May 11, 2007 4:29 PM
>   Subject: Re: [Chevelle-list] Engine noise!
>
>
>   A sticky lifter could explain why it's running colder on #8!?
>   Maybe we're on to something here :-)
>
>   Pelle
>     ----- Original Message -----
>     From: Carl Ziegler
>     To: The Chevelle Mailing List
>     Sent: Friday, May 11, 2007 1:38 PM
>     Subject: Re: [Chevelle-list] Engine noise!
>
>
>     Sounds like either an exhaust leak or a sticky lifter to me.  My $.02
>
>
>     ----- Original Message ----
>     From: Pelle Andersson <chevellegearheads at hotmail.com>
>     To: The Chevelle Mailing List <chevelle-list at chevelles.net>
>     Sent: Friday, May 11, 2007 6:18:47 AM
>     Subject: [Chevelle-list] Engine noise!
>
>
>     Hi!
>
>
>
>     I have this strange noise during acceleration!
>
>     Sounds a little bit like a bolt tapping my M/T aluminum valve   
> covers but a tad sharper!
>
>     No marks in the valve covers indicating that anything is hitting them!
>
>     I've tried to adjust timing back & forth 16-8 degrees but it's   
> still the same!
>
>     It's in sync with the rpm & I can only hear it when accelerating hard!
>
>
>
>     Any ideas?
>
>     Pelle
>
>
>
>
>
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