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Jim is correct.
=20
Ford introduced the aluminum cam gear with nylon teeth in March 1965. =
It was prone to failure with high mileage or age.
=20
Most B19KC engines probably have the aluminum gear and all Mk II 289 =
engines do have the aluminum gear.
Basically if your engine was assembled from March 1965, 5Cxx assembly =
date code stamped into the block, onward you have an aluminum cam gear.
Most of the B19KC engines have a 5Kxx assembly date code so they have =
the aluminum gear.
=20
The Tiger 260 and 289 engines are a great touring car engine. If you =
want more than that you need to build an engine with your expectations =
in mind.
You also need to understand that the Tiger Chassis and suspension is =
just barely adequate for the basic original Tiger engine.
Ron Fraser
=20
From: Tigers <tigers-bounces@autox.team.net> On Behalf Of James =
Armstrong via Tigers
Sent: Monday, May 04, 2020 7:25 PM
To: robertdhogan@gmail.com
Cc: tigers@autox.team.net
Subject: [Tigers] weakness
=20
Hello
=20
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.
=20
Bottom line: if you haven't done so, change that verdamt cam gear and =
chain while you're at it.
=20
Jim Armstrong
Mk 1A
382002083 LRXFE
Code 86
TAC #....
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link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p =
class=3DMsoNormal>Jim is correct.<o:p></o:p></p><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>Ford =
introduced the aluminum cam gear with nylon teeth in March =
1965.=C2=A0=C2=A0 It was prone to failure with high mileage or =
age.<o:p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><p =
class=3DMsoNormal>Most B19KC engines probably have the aluminum gear and =
all Mk II 289 engines do have the aluminum gear.<o:p></o:p></p><p =
class=3DMsoNormal>Basically if your engine was assembled from March =
1965, 5Cxx assembly date code stamped into the block, onward you have an =
aluminum cam gear.<o:p></o:p></p><p class=3DMsoNormal>Most of the B19KC =
engines have a 5Kxx assembly date code so they have the aluminum =
gear.<o:p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><p =
class=3DMsoNormal>The Tiger 260 and 289 engines are a great touring car =
engine.=C2=A0=C2=A0 If you want more than that you need to build an =
engine with your expectations in mind.<o:p></o:p></p><p =
class=3DMsoNormal>You also need to understand that the Tiger Chassis and =
suspension is just barely adequate for the basic original Tiger =
engine.<o:p></o:p></p><p class=3DMsoNormal> <o:p></o:p></p><p =
class=3DMsoNormal>Ron Fraser<o:p></o:p></p><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal><b>From:</b> =
Tigers <tigers-bounces@autox.team.net> <b>On Behalf Of </b>James =
Armstrong via Tigers<br><b>Sent:</b> Monday, May 04, 2020 7:25 =
PM<br><b>To:</b> robertdhogan@gmail.com<br><b>Cc:</b> =
tigers@autox.team.net<br><b>Subject:</b> [Tigers] =
weakness<o:p></o:p></p><p =
class=3DMsoNormal><o:p> </o:p></p><div><div><div><p =
class=3DMsoNormal style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>Hel=
lo<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>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.<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>Bot=
tom line: if you haven't done so, change that verdamt cam gear and chain =
while you're at it.<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div></div><div><div><p class=3DMsoNormal>Jim =
Armstrong<o:p></o:p></p></div><div><p class=3DMsoNormal>Mk =
1A<o:p></o:p></p></div><div><p class=3DMsoNormal>382002083 =
LRXFE<o:p></o:p></p></div><div><p class=3DMsoNormal>Code =
86<o:p></o:p></p></div><div><p class=3DMsoNormal>TAC =
#....<o:p></o:p></p></div></div></div></div></body></html>
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