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Hello
The cam drive gear on my engine (and yours) had nylon teeth that lost four
teeth as I pulled quickly out of a stop-light. Timing chain skipped. On later
Small Blocks, Fords dispensed with the nylon teeth (noise abatement) as they
failed over time. Since the engine was way out of time, the result was a piston
that came in contact with a valve, broke the valve,which rotated and split the
piston, etc. I was fortunate in that I was able to save the block, crank, and
both heads.
Bottom line: if you haven't done so, change that verdamt cam gear and chain
while you're at it.
Jim ArmstrongMk 1A382002083 LRXFECode 86TAC #....
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<div>
<div class="userEdit" style="font-family: arial, helvetica, sans-serif;
font-size: 10pt; color: #000000;">
<div><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;
color: #000000;">Hello<br><br></span></div>
<div><br></div>
<div><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;
color: #000000;">The cam drive gear on my engine (and yours) had nylon teeth
that lost four teeth as I pulled quickly out of a stop-light. Timing chain
skipped. On later Small Blocks, Fords dispensed with the nylon teeth (noise
abatement) as they failed over time. Since the engine was way out of time, the
result was a piston that came in contact with a valve, broke the valve,which
rotated and split the piston, etc. I was fortunate in that I was able to save
the block, crank, and both heads.</span></div>
<div><br></div>
<div><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;
color: #000000;">Bottom line: if you haven't done so, change that verdamt cam
gear and chain while you're at it.</span></div>
<div><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt;
color: #000000; background-color: #ffffff;"><br></span></div>
</div>
<div class="aoldesktop_signature">
<div>Jim Armstrong</div>
<div>Mk 1A</div>
<div>382002083 LRXFE</div>
<div>Code 86</div>
<div>TAC #....</div>
</div>
</div>
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