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Clanking noise is getting worse on startup.....

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Re: Clanking noise is getting worse on startup....

And as far as valve train noisemakers, could be the rocker shaft is worn, grooves in the shaft, until the lube fills them up will cause a noise on startup, not usually a lower pitch "oh my God, my engine's gonna blow up noise", more a medium, "wonder how long that's gonna last, until I have to fix it" type noise.
 
Re: Clanking noise is getting worse on startup....

Only problem with a stethoscope is that it also shows you perfectly normal noises that you've never heard before ! The racket inside the timing chest is simply incredible.

One other distant possibility (to have nightmares about) is piston slap ...
 
Re: Clanking noise is getting worse on startup....

<div class="ubbcode-block"><div class="ubbcode-header">Quote:]One other distant possibility (to have nightmares about) is piston slap ... [/QUOTE]

Randall,

I think that Bill's engine is relatively "new" from a rebuilt standpoint and I thought that he said that he replaced his pistons when he did it.
 
Re: Clanking noise is getting worse on startup....

You're probably right Paul, and I did say it was a distant possibility. OTOH it does sound like there is something wrong, and mistakes are sometimes made during rebuilds.
 
Re: Clanking noise is getting worse on startup....

Piston slap is a good point especially if they are forged. See if you can rule out the the fuel pump, if you are still mechanical, because they certainly can make some noise.
 
Re: Clanking noise is getting worse on startup....

<div class="ubbcode-block"><div class="ubbcode-header">Quote:] mistakes are sometimes made during rebuilds[/QUOTE]

And my old flat rate tickets can attest to that!!!!
 
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