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I bought a new Fiat X1/9 in 1975. The timing belt was supposed to be change=
d every 50,000 miles. At 40,000 miles I sold the car to a girlfriend. At 5=
3,000 miles the belt broke with the engine running at idle while she was wai=
ting 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.t=
eam.net> wrote:
>=20
> =EF=BB=BF
> I owned a 1977 Honda Civic with a 1.2 litre engine, I bought the car new. T=
he
> timing belt had to be changed every 50.000 miles on that model. I was 6000=
miles
> over the timing belt's best before mileage. The timing belt broke while go=
ing to work one afternoon.
> There was no damage to the engine, a new belt and I was good to go. I made=
sure I was under
> 50,000 miles when I replaced that one. Lesson learned.
>=20
> Greg Higgins
>=20
>> On Thu, May 5, 2022 at 4:46 PM Michael MacLean via Spridgets <spridgets@a=
utox.team.net> wrote:
>> I don=E2=80=99t suppose having 1.5 rockers helps the situation much eithe=
r.
>> Mike M
>>=20
>>> 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 v=
alves would hit the piston if the belt broke on an A-series. A long time ag=
o my dyno guy said for my engine if the belt broke the valves would definite=
ly hit the piston. No, I don't have the full valve lift figure handy.
>>>=20
>>>> On Thu, 5 May 2022 at 20:16, Rick Fisk via Spridgets <spridgets@autox.t=
eam.net> wrote:
>>>> Forgot to add both valves were bent as well.
>>>>=20
>>>> > On May 5, 2022, at 3:01 PM, Rick Fisk <refisk@chartermi.net> wrote:
>>>> >=20
>>>> > =EF=BB=BFYes, the 1275 is an interference engine. In this photo you c=
an see where the valves beat the crap out of the top of the piston. The pis=
ton broke in half at the wrist pin and the top half of the piston stayed at t=
he top of the bore.
>>>> >=20
>>>> >=20
>>>> >=20
>>>> >> On May 5, 2022, at 2:41 PM, Michael MacLean via Spridgets <spridgets=
@autox.team.net> wrote:
>>>> >>=20
>>>> >> =EF=BB=BF
>>>> >> When I rebuilt my 1275 for the Bugeye I converted to belt drive for t=
iming. Keeps the timing spot on. It occurs to me that like other cars the t=
iming belt has a limited life and must be changed. To be honest the instruc=
tions did not say when this should occur as far as I can remember. To be fa=
ir, the rebuilt engine has only a little over 3K miles on it, but the questi=
on arises about valve interference if the belt breaks. To my knowledge, I d=
on't think so, but I have been proven wrong before. Anyone know if a 1275 w=
ould be an interference engine if the belt broke?
>>>> >> Mike MacLean
>>>> >> ------------------------
>>>> >>=20
>>>> >> spridgets@autox.team.net
>>>> >>=20
>>>> >> Donate: http://www.team.net/donate.html
>>>> >> Suggested annual donation: $12.75
>>>> >>=20
>>>> >> Archive: http://www.team.net/pipermail/spridgets http://autox.team.=
net/archive
>>>> >>=20
>>>> >> Unsubscribe/Manage: http://autox.team.net/mailman/options/spridgets/=
refisk@chartermi.net
>>>> ------------------------
>>>>=20
>>>> spridgets@autox.team.net
>>>>=20
>>>> Donate: http://www.team.net/donate.html
>>>> Suggested annual donation: $12.75
>>>>=20
>>>> Archive: http://www.team.net/pipermail/spridgets http://autox.team.net=
/archive
>>>>=20
>>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/spridgets/wes=
lake1330@gmail.com
>> ------------------------
>>=20
>> spridgets@autox.team.net
>>=20
>> Donate: http://www.team.net/donate.html
>> Suggested annual donation: $12.75
>>=20
>> Archive: http://www.team.net/pipermail/spridgets http://autox.team.net/a=
rchive
>>=20
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/spridgets/g.h.h=
iggins@gmail.com
> ------------------------
>=20
> spridgets@autox.team.net
>=20
> Donate: http://www.team.net/donate.html
> Suggested annual donation: $12.75
>=20
> Archive: http://www.team.net/pipermail/spridgets http://autox.team.net/ar=
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>=20
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div dir=3D"ltr"></div><div dir=3D"ltr">I b=
ought a new Fiat X1/9 in 1975. The timing belt was supposed to be chan=
ged 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 idle while=
she was waiting for a red light. At least half of the valves were ben=
t.</div><div dir=3D"ltr"><br><blockquote type=3D"cite">On May 5, 2022, at 10=
:19 PM, Greg Higgins via Spridgets <spridgets@autox.team.net> wrote:<b=
r><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 bough=
t the car new. The<div>timing belt had to be changed every 50.000 miles on t=
hat model. I was 6000 miles</div><div>over the timing belt's best before mil=
eage. The timing belt broke while going to work one afternoon.</div><div>The=
re 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_q=
uote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, May 5, 2022 at 4:46 PM M=
ichael MacLean via Spridgets <<a href=3D"mailto:spridgets@autox.team.net"=
>spridgets@autox.team.net</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"auto">I don=E2=80=99t suppose having 1.5 r=
ockers helps the situation much either.<div dir=3D"auto">Mike M</div></div><=
br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, M=
ay 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 sol=
id rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr">I always thought it d=
epended on the cam and rockers whether or not the valves would hit the pisto=
n if the belt broke on an A-series. A long time ago my dyno guy said f=
or my engine if the belt broke the valves would definitely hit the piston.&n=
bsp; No, I don't have the full 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 Spridgets <<a href=3D"mailto:spridgets@autox.team.net"=
rel=3D"noreferrer" target=3D"_blank">spridgets@autox.team.net</a>> wrote=
:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8=
ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Forgot to add bo=
th valves were bent as well.<br>
<br>
> On May 5, 2022, at 3:01 PM, Rick Fisk <<a href=3D"mailto:refisk@char=
termi.net" rel=3D"noreferrer" target=3D"_blank">refisk@chartermi.net</a>>=
wrote:<br>
> <br>
> =EF=BB=BFYes, the 1275 is an interference engine. In this photo y=
ou can 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 s=
tayed at the top of the bore.<br>
> <br>
> <br>
> <br>
>> On May 5, 2022, at 2:41 PM, Michael MacLean via Spridgets <<a hr=
ef=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 for=
timing. Keeps the timing spot on. It occurs to me that like oth=
er cars the timing belt has a limited life and must be changed. To be h=
onest the instructions did not say when this should occur as far as I can re=
member. 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 befor=
e. Anyone know if a 1275 would be an interference engine if the belt b=
roke?<br>
>> Mike MacLean<br>
>> ------------------------<br>
>> <br>
>> <a href=3D"mailto:spridgets@autox.team.net"; rel=3D"noreferrer" targ=
et=3D"_blank">spridgets@autox.team.net</a><br>
>> <br>
>> Donate: <a href=3D"http://www.team.net/donate.html"; rel=3D"noreferr=
er noreferrer" 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 noreferrer" target=3D"_blank">http://www.team.net/pipermail/spri=
dgets</a> <a href=3D"http://autox.team.net/archive"; rel=3D"noreferrer n=
oreferrer" target=3D"_blank">http://autox.team.net/archive</a><br>
>> <br>
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</blockquote></div>
</blockquote></div>
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<span>------------------------</span><br><span></span><br><span>spridgets@au=
tox.team.net</span><br><span></span><br><span>Donate: http://www.team.net/do=
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