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If this is recent event then adjusting will do no good. If it sounds like
just one cylinder then you may have a collapsed lifter, broken rocker or
pushrod, or broken valve spring. If all the lifters are rattling then I
would suspect low oil pressure...unless you over-revved the shit out of it,
then there may be systematic damage.
In any case you want to preload the lifter about 0.025" or so, which is
around 1/2 or 3/4 of a turn of the nut once the slack is taken out. On
really steeply ramped cams like the CompCams Extreme Energy I add just a
smidgen more preload.
Bugz
On Friday, July 17, 2015, Richard via Tigers <tigers@autox.team.net> wrote:
> 1967 Sunbeam Tiger MKII 289
>
> I have rattling noise that seem to be coming from the valve train, so I a=
m
> getting ready to adjust the valve lash. The Sunbeam workshop manual says
> to take out the clearance at the pushrod and rocker arm and then =E2=80=
=9C2=E2=80=9D more
> turns. That sound excessive to me, and everything on the web says
> additional turns of =C2=BD to =C2=BE turn. One site did say 1 additional=
turn. This
> is my first attempt at adjusting the valve lash, any advice would be
> greatly appreciated. Thanks
>
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If this is recent event then adjusting will do no good. If it sounds like j=
ust one cylinder then you may=C2=A0have a collapsed lifter, broken rocker o=
r pushrod,=C2=A0or broken valve spring. If all the lifters are rattling the=
n I would suspect low oil pressure...unless you over-revved the shit out of=
it, then there may be systematic damage.=C2=A0<div><br></div><div>In any c=
ase you want to preload the lifter about 0.025" or so, which is around=
1/2 or 3/4 of a turn of the nut once the slack is taken out. On really ste=
eply=C2=A0ramped cams like the CompCams Extreme Energy I add just a smidgen=
more preload.=C2=A0</div><div>Bugz</div><div><br></div><div><br></div><div=
>On Friday, July 17, 2015, Richard via Tigers <<a href=3D"mailto:tigers@=
autox.team.net">tigers@autox.team.net</a>> wrote:<br><blockquote class=
=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padd=
ing-left:1ex"><div lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div><p cl=
ass=3D"MsoNormal">1967 Sunbeam Tiger MKII 289<u></u><u></u></p><p class=3D"=
MsoNormal">I have rattling noise that seem to be coming from the valve trai=
n, so I am getting ready to adjust the valve lash.=C2=A0 The Sunbeam worksh=
op manual says to take out the clearance at the pushrod and rocker arm and =
then =E2=80=9C2=E2=80=9D more turns.=C2=A0 That sound excessive to me, and =
=C2=A0everything on the web says additional turns of =C2=BD to =C2=BE turn.=
=C2=A0 One site did say 1 additional turn.=C2=A0 This is =C2=A0my first att=
empt at adjusting the valve lash, any advice would be greatly appreciated.=
=C2=A0 Thanks<u></u><u></u></p></div></div></blockquote></div>
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