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Hey Mike,Sounds like several things are going on. A leak down will pinpoint=
valves or rings or head gasket. The rod knock will only go away with new r=
od bearings, assuming the gods smoked and=C2=A0the crank isn=E2=80=99t in n=
eed of a polish or turning. Wish I were closer -=C2=A0
Ron
Sent from Yahoo Mail for iPhone
On Thursday, May 4, 2023, 3:34 AM, Michael MacLean via Spridgets <spridgets=
@autox.team.net> wrote:
Took compression readings of the 1275 engine in my Bugeye as the start of t=
he rod knock diagnosis.=C2=A0 Not good.=C2=A0 No 1 was 110 psi, No 2=C2=A0 =
-=C2=A0 90 psi, No 3 - 80 psi and No 4 was 110 psi.=C2=A0 Which means none =
of them are up to snuff.=C2=A0 Also found the spark plug wire for number 3 =
cylinder had fallen out if the distributor.=C2=A0 I plugged it back in and =
started the engine.=C2=A0 It idled smoother, but under acceleration the kno=
ck was still there and definitely coming from the block.=C2=A0 All this wit=
h only 3 - 4 thousand miles since the swap from 948 to 1275.=C2=A0 Next wil=
l be the oil in the cylinders and retake the compression test to see if the=
low compression is due to the valves.=C2=A0 Might as well figure a head re=
build too.=C2=A0 $$$$$$$$$$$$Mike MacLean------------------------
spridgets@autox.team.net
Archive: http://www.team.net/pipermail/spridgets=C2=A0 http://autox.team.ne=
t/archive
@yahoo.com
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dy>
Hey Mike,<div>Sounds like several things are going on. A leak down will pin=
point valves or rings or head gasket. The rod knock will only go away with =
new rod bearings, assuming the gods smoked and the crank isn=E2=80=99t=
in need of a polish or turning. Wish I were closer - </div><div><br><=
/div><div>Ron<br><br><br><a href=3D"https://overview.mail.yahoo.com/?.src=
=3DiOS">Sent from Yahoo Mail for iPhone</a><br><br><p class=3D"yahoo-quoted=
-begin" style=3D"font-size: 15px; color: #715FFA; padding-top: 15px; margin=
-top: 0">On Thursday, May 4, 2023, 3:34 AM, Michael MacLean via Spridgets &=
lt;spridgets@autox.team.net> wrote:</p><blockquote class=3D"iosymail"><d=
iv id=3D"yiv0547531779"><div>Took compression readings of the 1275 engine i=
n my Bugeye as the start of the rod knock diagnosis. Not good. =
No 1 was 110 psi, No 2 - 90 psi, No 3 - 80 psi and No 4 was 110=
psi. Which means none of them are up to snuff. Also found the =
spark plug wire for number 3 cylinder had fallen out if the distributor.&nb=
sp; I plugged it back in and started the engine. It idled smoother, b=
ut under acceleration the knock was still there and definitely coming from =
the block. All this with only 3 - 4 thousand miles since the swap fro=
m 948 to 1275. Next will be the oil in the cylinders and retake the c=
ompression test to see if the low compression is due to the valves. M=
ight as well figure a head rebuild too. $$$$$$$$$$$$<div>Mike MacLean=
</div></div>
</div>------------------------<br><br><a ymailto=3D"mailto:spridgets@autox.=
team.net" href=3D"mailto:spridgets@autox.team.net";>spridgets@autox.team.net=
</a><br><br>Donate: <a href=3D"http://www.team.net/donate.html"; target=3D"_=
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2.75<br><br>Archive: <a href=3D"http://www.team.net/pipermail/spridgets"; ta=
rget=3D"_blank">http://www.team.net/pipermail/spridgets</a> <a href=
=3D"http://autox.team.net/archive"; target=3D"_blank">http://autox.team.net/=
archive</a><br><br>Unsubscribe/Manage: <a href=3D"http://autox.team.net/mai=
lman/options/spridgets/soavero@yahoo.com" target=3D"_blank">http://autox.te=
am.net/mailman/options/spridgets/soavero@yahoo.com</a><br><blockquote></blo=
ckquote></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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