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I bought a very secondhand Mk3 Ford Cortina to replace the Mini I had
rolled (!) and changed the belt of unknown age and mileage sometime during
my ownership with no drama except learning that engine/cam timing was a
different thing to ignition timing.
On Fri, 6 May 2022 at 04:03, Rick Fisk via Spridgets <
spridgets@autox.team.net> wrote:
> I bought a new Fiat X1/9 in 1975. The timing belt was supposed to be
> changed every 50,000 miles. At 40,000 miles I sold the car to a
> girlfriend. At 53,000 miles the belt broke with the engine running at id=
le
> while she was waiting for a red light. At least half of the valves were
> bent.
>
> On May 5, 2022, at 10:19 PM, Greg Higgins via Spridgets <
> spridgets@autox.team.net> wrote:
>
> =EF=BB=BF
> I owned a 1977 Honda Civic with a 1.2 litre engine, I bought the car new.
> The
> timing belt had to be changed every 50.000 miles on that model. I was 600=
0
> miles
> over the timing belt's best before mileage. The timing belt broke while
> going to work one afternoon.
> There was no damage to the engine, a new belt and I was good to go. I mad=
e
> sure I was under
> 50,000 miles when I replaced that one. Lesson learned.
>
> Greg Higgins
>
> On Thu, May 5, 2022 at 4:46 PM Michael MacLean via Spridgets <
> spridgets@autox.team.net> wrote:
>
>> I don=E2=80=99t suppose having 1.5 rockers helps the situation much eith=
er.
>> Mike M
>>
>> On Thu, May 5, 2022, 1:41 PM Weslake1330 <weslake1330@gmail.com> wrote:
>>
>>> 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 t=
ime
>>> 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=
can see
>>>> where the valves beat the crap out of the top of the piston. The pist=
on
>>>> broke in half at the wrist pin and the top half of the piston stayed a=
t the
>>>> 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 ca=
rs
>>>> 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 rememb=
er.
>>>> 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 m=
y
>>>> knowledge, I don't think so, but I have been proven wrong before. Any=
one
>>>> 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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>>>> >>
>>>> >> Unsubscribe/Manage:
>>>> http://autox.team.net/mailman/options/spridgets/refisk@chartermi.net
>>>> ------------------------
>>>>
>>>> spridgets@autox.team.net
>>>>
>>>> Donate: http://www.team.net/donate.html
>>>> Suggested annual donation: $12.75
>>>>
>>>> Archive: http://www.team.net/pipermail/spridgets
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>>>>
>>>> Unsubscribe/Manage:
>>>> http://autox.team.net/mailman/options/spridgets/weslake1330@gmail.com
>>>>
>>> ------------------------
>>
>> spridgets@autox.team.net
>>
>> Donate: http://www.team.net/donate.html
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>>
> ------------------------
>
> spridgets@autox.team.net
>
> Donate: http://www.team.net/donate.html
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>
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>
> ------------------------
>
> spridgets@autox.team.net
>
> Donate: http://www.team.net/donate.html
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>
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<div dir=3D"ltr">I bought a very secondhand Mk3 Ford Cortina to replace the=
Mini I had rolled (!) and changed the belt of unknown age and mileage some=
time during my ownership with no drama except learning that engine/cam timi=
ng was a different thing to ignition timing.</div><br><div class=3D"gmail_q=
uote"><div dir=3D"ltr" class=3D"gmail_attr">On Fri, 6 May 2022 at 04:03, Ri=
ck Fisk via Spridgets <<a href=3D"mailto:spridgets@autox.team.net";>sprid=
gets@autox.team.net</a>> wrote:<br></div><blockquote class=3D"gmail_quot=
e" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204)=
;padding-left:1ex"><div dir=3D"auto"><div dir=3D"ltr"></div><div dir=3D"ltr=
">I bought a new Fiat X1/9 in 1975.=C2=A0 The timing belt was supposed to b=
e changed every 50,000 miles.=C2=A0 At 40,000 miles I sold the car to a gir=
lfriend.=C2=A0 At 53,000 miles the belt broke with the engine running at id=
le while she was waiting for a red light.=C2=A0 At least half of the valves=
were bent.</div><div dir=3D"ltr"><br><blockquote type=3D"cite">On May 5, 2=
022, at 10:19 PM, Greg Higgins via Spridgets <<a href=3D"mailto:spridget=
s@autox.team.net" target=3D"_blank">spridgets@autox.team.net</a>> wrote:=
<br><br></blockquote></div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=
=BB=BF<div dir=3D"ltr">I owned a 1977 Honda Civic with a 1.2 litre engine, =
I bought the car new. The<div>timing belt had to be changed every 50.000 mi=
les on that model. I was 6000 miles</div><div>over the timing belt's be=
st before mileage. The timing belt broke while going to work one afternoon.=
</div><div>There was no damage to the engine, a new belt and I was good to =
go. I made sure I was under</div><div>50,000 miles when I replaced that one=
. Lesson learned.</div><div><br></div><div>Greg Higgins</div></div><br><div=
class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, May 5,=
2022 at 4:46 PM Michael MacLean via Spridgets <<a href=3D"mailto:spridg=
ets@autox.team.net" target=3D"_blank">spridgets@autox.team.net</a>> wrot=
e:<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"><div dir=3D"a=
uto">I don=E2=80=99t suppose having 1.5 rockers helps the situation much ei=
ther.<div dir=3D"auto">Mike M</div></div><br><div class=3D"gmail_quote"><di=
v dir=3D"ltr" class=3D"gmail_attr">On Thu, May 5, 2022, 1:41 PM Weslake1330=
<<a href=3D"mailto:weslake1330@gmail.com"; target=3D"_blank">weslake1330=
@gmail.com</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"><div dir=3D"ltr">I always thought it depended on the cam and roc=
kers whether 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 ha=
ve the full valve lift figure handy.</div><br><div class=3D"gmail_quote"><d=
iv dir=3D"ltr" class=3D"gmail_attr">On Thu, 5 May 2022 at 20:16, Rick Fisk =
via Spridgets <<a href=3D"mailto:spridgets@autox.team.net"; rel=3D"norefe=
rrer" target=3D"_blank">spridgets@autox.team.net</a>> wrote:<br></div><b=
lockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-le=
ft:1px solid rgb(204,204,204);padding-left:1ex">Forgot to add both valves w=
ere bent as well.<br>
<br>
> On May 5, 2022, at 3:01 PM, Rick Fisk <<a href=3D"mailto:refisk@cha=
rtermi.net" rel=3D"noreferrer" target=3D"_blank">refisk@chartermi.net</a>&g=
t; 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"; rel=3D"noreferrer" target=3D"_blank=
">spridgets@autox.team.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"; rel=3D"noreferrer" tar=
get=3D"_blank">spridgets@autox.team.net</a><br>
>> <br>
>> Donate: <a href=3D"http://www.team.net/donate.html"; rel=3D"norefer=
rer noreferrer" target=3D"_blank">http://www.team.net/donate.html</a><br>
>> Suggested annual donation: $12.75<br>
>> <br>
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t</a><br>
------------------------<br>
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r>
</blockquote></div>
</blockquote></div>
------------------------<br>
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<span>------------------------</span><br><span></span><br><span><a href=3D"=
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