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I always thought it depended on the cam and rockers whether or not the
valves would hit the piston if the belt broke on an A-series. A long time
ago my dyno guy said for my engine if the belt broke the valves would
definitely hit the piston. No, I don't have the full valve lift figure
handy.
On Thu, 5 May 2022 at 20:16, Rick Fisk via Spridgets <
spridgets@autox.team.net> wrote:
> Forgot to add both valves were bent as well.
>
> > On May 5, 2022, at 3:01 PM, Rick Fisk <refisk@chartermi.net> wrote:
> >
> > =EF=BB=BFYes, the 1275 is an interference engine. In this photo you ca=
n see
> where the valves beat the crap out of the top of the piston. The piston
> broke in half at the wrist pin and the top half of the piston stayed at t=
he
> top of the bore.
> >
> >
> >
> >> On May 5, 2022, at 2:41 PM, Michael MacLean via Spridgets <
> spridgets@autox.team.net> wrote:
> >>
> >> =EF=BB=BF
> >> When I rebuilt my 1275 for the Bugeye I converted to belt drive for
> timing. Keeps the timing spot on. It occurs to me that like other cars
> the timing belt has a limited life and must be changed. To be honest the
> instructions did not say when this should occur as far as I can remember.
> To be fair, the rebuilt engine has only a little over 3K miles on it, but
> the question arises about valve interference if the belt breaks. To my
> knowledge, I don't think so, but I have been proven wrong before. Anyone
> know if a 1275 would be an interference engine if the belt broke?
> >> Mike MacLean
> >> ------------------------
> >>
> >> spridgets@autox.team.net
> >>
> >> Donate: http://www.team.net/donate.html
> >> Suggested annual donation: $12.75
> >>
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> >>
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> ------------------------
>
> spridgets@autox.team.net
>
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> Suggested annual donation: $12.75
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<div dir=3D"ltr">I always thought it depended on the cam and rockers whethe=
r or not the valves would hit the piston if the belt broke on an A-series.=
=C2=A0 A long time ago my dyno guy said for my engine if the belt broke the=
valves would definitely hit the piston.=C2=A0 No, I don't have the ful=
l valve lift figure handy.</div><br><div class=3D"gmail_quote"><div dir=3D"=
ltr" class=3D"gmail_attr">On Thu, 5 May 2022 at 20:16, Rick Fisk via Spridg=
ets <<a href=3D"mailto:spridgets@autox.team.net";>spridgets@autox.team.ne=
t</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin=
:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"=
>Forgot to add both valves were bent as well.<br>
<br>
> On May 5, 2022, at 3:01 PM, Rick Fisk <<a href=3D"mailto:refisk@cha=
rtermi.net" target=3D"_blank">refisk@chartermi.net</a>> wrote:<br>
> <br>
> =EF=BB=BFYes, the 1275 is an interference engine.=C2=A0 In this photo =
you can see where the valves beat the crap out of the top of the piston.=C2=
=A0 The piston broke in half at the wrist pin and the top half of the pisto=
n stayed at the top of the bore.<br>
> <br>
> <br>
> <br>
>> On May 5, 2022, at 2:41 PM, Michael MacLean via Spridgets <<a h=
ref=3D"mailto:spridgets@autox.team.net"; target=3D"_blank">spridgets@autox.t=
eam.net</a>> wrote:<br>
>> <br>
>> =EF=BB=BF<br>
>> When I rebuilt my 1275 for the Bugeye I converted to belt drive fo=
r timing.=C2=A0 Keeps the timing spot on.=C2=A0 It occurs to me that like o=
ther cars the timing belt has a limited life and must be changed.=C2=A0 To =
be honest the instructions did not say when this should occur as far as I c=
an remember.=C2=A0 To be fair, the rebuilt engine has only a little over 3K=
miles on it, but the question arises about valve interference if the belt =
breaks.=C2=A0 To my knowledge, I don't think so, but I have been proven=
wrong before.=C2=A0 Anyone know if a 1275 would be an interference engine =
if the belt broke?<br>
>> Mike MacLean<br>
>> ------------------------<br>
>> <br>
>> <a href=3D"mailto:spridgets@autox.team.net"; target=3D"_blank">spri=
dgets@autox.team.net</a><br>
>> <br>
>> Donate: <a href=3D"http://www.team.net/donate.html"; rel=3D"norefer=
rer" target=3D"_blank">http://www.team.net/donate.html</a><br>
>> Suggested annual donation: $12.75<br>
>> <br>
>> Archive: <a href=3D"http://www.team.net/pipermail/spridgets"; rel=
=3D"noreferrer" target=3D"_blank">http://www.team.net/pipermail/spridgets</=
a>=C2=A0 <a href=3D"http://autox.team.net/archive"; rel=3D"noreferrer" targe=
t=3D"_blank">http://autox.team.net/archive</a><br>
>> <br>
>> Unsubscribe/Manage: <a href=3D"http://autox.team.net/mailman/optio=
ns/spridgets/refisk@chartermi.net" rel=3D"noreferrer" target=3D"_blank">htt=
p://autox.team.net/mailman/options/spridgets/refisk@chartermi.net</a><br>
------------------------<br>
<br>
<a href=3D"mailto:spridgets@autox.team.net"; target=3D"_blank">spridgets@aut=
ox.team.net</a><br>
<br>
et=3D"_blank">http://www.team.net/donate.html</a><br>
<br>
Archive: <a href=3D"http://www.team.net/pipermail/spridgets"; rel=3D"norefer=
rer" target=3D"_blank">http://www.team.net/pipermail/spridgets</a>=C2=A0 <a=
href=3D"http://autox.team.net/archive"; rel=3D"noreferrer" target=3D"_blank=
">http://autox.team.net/archive</a><br>
<br>
ets/weslake1330@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://auto=
x.team.net/mailman/options/spridgets/weslake1330@gmail.com</a><br>
</blockquote></div>
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spridgets@autox.team.net
Archive: http://www.team.net/pipermail/spridgets http://autox.team.net/archive
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