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[Fot] TR3/4 Timing chains

To: FOT Triumph <fot@autox.team.net>
Subject: [Fot] TR3/4 Timing chains
From: Joe Boruch <jaboruch@yahoo.com>
Date: Tue, 11 Aug 2026 22:14:20 +0000 (UTC)
Authentication-results: autox.team.net;
Delivered-to: mharc@autox.team.net
Delivered-to: fot@autox.team.net
References: <598727126.18824.1786486460110.ref@mail.yahoo.com>
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Amici, my TR3 engine seized at Lime Rock back in June. =C2=A0Finally got ar=
ound to pulling the engine and tearing it down. =C2=A0Found a broken timing=
 chain along with pieces of the tensioner and that the retaining pin for th=
e tensioner was broken off of the front plate. =C2=A0The chain had many lap=
s on it - I probably should just change it with each refresh, rather than r=
eusing it.
Any suggestions on better chains and tensioners? =C2=A0I see that Moss sell=
s an "uprated" chain for about $70 compared to under $15 for other chains. =
=C2=A0It's worth the $70 if it lasts, but is it really better?
Also need an adjustable cam gear. =C2=A0I had been using one from Cambridge=
 Motorsports that I had for many years. =C2=A0Any suggestions?
I have found broken tensioners in previous tear downs, but they were caught=
 before causing anything worse. =C2=A0Does anyone sell or fabricate and upr=
ated tensioner similar to what MGs use? =C2=A0I see that Racetorations make=
s one for TR5/6s. =C2=A0
Joe(B)
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<html><head></head><body><div class=3D"yahoo-style-wrap" style=3D"font-fami=
ly:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir=
=3D"ltr" data-setdir=3D"false">Amici, my TR3 engine seized at Lime Rock bac=
k in June. &nbsp;Finally got around to pulling the engine and tearing it do=
wn. &nbsp;Found a broken timing chain along with pieces of the tensioner an=
d that the retaining pin for the tensioner was broken off of the front plat=
e. &nbsp;The chain had many laps on it - I probably should just change it w=
ith each refresh, rather than reusing it.</div><div dir=3D"ltr" data-setdir=
=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">Any suggestions=
 on better chains and tensioners? &nbsp;I see that Moss sells an "uprated" =
chain for about $70 compared to under $15 for other chains. &nbsp;It's wort=
h the $70 if it lasts, but is it really better?</div><div dir=3D"ltr" data-=
setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">Also need=
 an adjustable cam gear. &nbsp;I had been using one from Cambridge Motorspo=
rts that I had for many years. &nbsp;Any suggestions?</div><div dir=3D"ltr"=
 data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">I h=
ave found broken tensioners in previous tear downs, but they were caught be=
fore causing anything worse. &nbsp;Does anyone sell or fabricate and uprate=
d tensioner similar to what MGs use? &nbsp;I see that Racetorations makes o=
ne for TR5/6s. &nbsp;</div><div dir=3D"ltr" data-setdir=3D"false"><br></div=
><div dir=3D"ltr" data-setdir=3D"false">Joe(B)</div></div></body></html>
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