We had a similar problem with Ricks's 1600. Took a hose and listened to each
rocker individually. When gapped properly some of them tapped and some did
not. Tightening up the noisy ones a couple thousanths quieted them down. If
it turns out that none of the lifters are noisy then on to other things.
keith
> Valves don't knock, they tappety tap.
>
> A soft knock that isn't too 'bassy' usually indicates a bad connecting rod
> bearing. A louder knock usually indicates a crank bearing. Bring it to a
> mechanic and let him listen, or a knowledgeable friend.
>
> Whatever bearing it is, doesn't sound good.
>
> Mike
>
> ----- Original Message -----
> From: "The Hoovers" <audela2@cox.net>
> To: "Roadster Mailing List (E-mail)" <datsun-roadsters@autox.team.net>
> Sent: Saturday, February 22, 2003 3:00 PM
> Subject: Valve knocking
>
>
> >We almost have the '64 1600 back up &running. Right now we're dealing
> with
> >a knocking that sounds like it's from the head. We've adjusted the valves
> >to spec, but it's still knocking. Any ideas?
> >
> >Thanks,
> >Charlotte &Leonard Hoover
> >Phoenix, AZ
> >'64 SPL310 1500
> >'64 SPL310 1600
> >'73 240Z
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