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What Chris has failed to mention is that he holds the revs to 6000 and thus
relieves a lot ofstrees on the entire engine.
*Never be beaten by equipment.*
On Sun, Nov 24, 2019 at 1:03 PM Phil Gott via Fot <fot@autox.team.net>
wrote:
> Interesting, Chris:
> My machine shop said that .002=E2=80=9D run out at the center main, with =
the crank
> supported and spun on numbers 1 and 3 was a sign that it was developing
> high levels of internal stress (work hardening) and that it should be
> retired. They aim for 0 run out under these conditions. Based on what
> you=E2=80=99ve said, I wonder if they are being overly cautious. As they =
do not
> grind cranks themselves ( only polishing and balancing), they had little =
to
> gain from that diagnosis.
> Thanks for the input.
> Sent from my iPhone
>
> On Nov 24, 2019, at 9:26 AM, Tony Drews <tony@tonydrews.com> wrote:
>
> =EF=BB=BF
>
> Wow! It's very nicely done. Certainly overkill.
>
> Regards, Tony
> On 11/23/2019 9:11 PM, Phil Gott wrote:
>
> Here are some photos:
> <image0.jpeg>
>
> <image1.jpeg>
>
>
> <image2.jpeg>
>
>
> Sent from my iPhone
>
> On Nov 23, 2019, at 12:23 PM, Tony Drews <tony@tonydrews.com>
> <tony@tonydrews.com> wrote:
>
> =EF=BB=BF
>
> I agree, that sounds like overkill. Mine only requires the top of the ca=
p
> to be machined flat, no other block mods.
>
> Regards, Tony
> On 11/23/2019 5:42 AM, Phil Gott wrote:
>
> Thanks again, Tony:
> The one we have, built by the late Bill Throop, in addition to
> reinforcing the cap itself, has the block machined internally to accept t=
he
> sides of a strap, then the strap is cross bolted from the sides, through
> the block from outside. I=E2=80=99m wondering if this is a bit of overki=
ll. Based
> on your recommendation, it seems to be.
> Maybe I can send some pictures later today, as we are pulling the engine
> today for other work.
> Phil
>
> Sent from my iPhone
>
> On Nov 22, 2019, at 10:56 PM, Tony Drews <tony@tonydrews.com>
> <tony@tonydrews.com> wrote:
>
> =EF=BB=BF
>
> I run that setup, it was an uncle jack trick. Here's what he wrote about
> that (on my engine building tips page):
>
> "I also like to strap the center main to add rigidity to the bottom end.
> To do this, mill off the cast face of the main flush with the surfaces fo=
r
> the head bolts. Get a front strap for a Chevy 400 block. You must enlarge
> the holes in the strap and you must use longer bolts. Some builders fe=
el
> that this is totally unnecessary, but since starting to do this, I have
> never had a main bearing deteriorate faster than a rod bearing, which is
> something that happens more frequently than you would expect."
> Regards, Tony Drews
>
> On 11/22/2019 3:58 PM, Phil Gott via Fot wrote:
>
> Has anyone seen the need to add extra support to the center main on the T=
R wet sleeve engine? We have an engine that has a steel bridge cross-bolted=
underneath and supporting the center main cap. Is this needed? Just took 3=
factory cranks to the machine shop and all three were bent about .002 in (=
.002 run out at center main when supported on first and last mains.) Two of=
these were raced, the third was removed from a tired street engine. note: =
None of these cranks came out of the engine with extra support at the cente=
r.
> Curious as to the need for the extra support.
> Thanks,
> Phil Gott
> 114 TR4A
>
> Sent from my iPhone
> _______________________________________________fot@autox.team.net
> http://www.fot-racing.com
>
> Donate: http://www.team.net/donate.html
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ews.com
>
>
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> fot@autox.team.net
>
> http://www.fot-racing.com
>
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<div dir=3D"ltr">What Chris has failed to mention is that he holds the revs=
to 6000 and thus relieves a lot ofstrees on the entire engine.<br clear=3D=
"all"><div><div dir=3D"ltr" data-smartmail=3D"gmail_signature"><p><strong><=
font color=3D"#000099">Never be beaten by equipment.</font></strong></p></d=
iv></div><br></div><br><div class=3D"gmail_quote"><div class=3D"gmail_attr"=
dir=3D"ltr">On Sun, Nov 24, 2019 at 1:03 PM Phil Gott via Fot <<a href=
=3D"mailto:fot@autox.team.net"; target=3D"_blank">fot@autox.team.net</a>>=
wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px =
0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-w=
idth:1px;border-left-style:solid"><div dir=3D"auto">Interesting, Chris:<div=
>My machine shop said that .002=E2=80=9D run out at the center main, with t=
he crank supported and spun on numbers 1 and 3 was a sign that it was devel=
oping high levels of internal stress (work hardening) and that it should be=
retired. They aim for 0 run out under these conditions. Based on what you=
=E2=80=99ve said, I wonder if they are being overly cautious. As they do no=
t grind cranks themselves ( only polishing and balancing), they had little =
to gain from that diagnosis.<br>Thanks for the input.<br><div dir=3D"ltr">S=
ent from my iPhone</div><div dir=3D"ltr"><br><blockquote type=3D"cite">On N=
ov 24, 2019, at 9:26 AM, Tony Drews <<a href=3D"mailto:tony@tonydrews.co=
m" target=3D"_blank">tony@tonydrews.com</a>> wrote:<br><br></blockquote>=
</div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF
=20
=20
=20
=20
<p>Wow!=C2=A0 It's very nicely done.=C2=A0 Certainly overkill.</p>
<p>Regards, Tony<br>
</p>
<div>On 11/23/2019 9:11 PM, Phil Gott wrote:<br>
</div>
<blockquote type=3D"cite">
=20
Here are some photos:
<div><div><image0.jpeg></div><br>
<div><image1.jpeg></div><br>
<div dir=3D"ltr">=C2=A0<div><image2.jpeg></div></div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">Sent from my iPhone</div>
<div dir=3D"ltr"><br>
<blockquote type=3D"cite">On Nov 23, 2019, at 12:23 PM, Tony
Drews <a href=3D"mailto:tony@tonydrews.com"; target=3D"_blank">&=
lt;tony@tonydrews.com></a> wrote:<br>
<br>
</blockquote>
</div>
<blockquote type=3D"cite">
<div dir=3D"ltr">=EF=BB=BF
=20
<p>I agree, that sounds like overkill.=C2=A0 Mine only requires
the top of the cap to be machined flat, no other block
mods.</p>
<p>Regards, Tony<br>
</p>
<div>On 11/23/2019 5:42 AM, Phil
Gott wrote:<br>
</div>
<blockquote type=3D"cite">
=20
Thanks again, Tony:
<div>The one we have, built by the late Bill =C2=A0Throop, in
addition to reinforcing the cap itself, has the block
machined internally to accept the sides of a strap, then
the strap =C2=A0is cross bolted from the sides, through the
block from outside.=C2=A0 I=E2=80=99m wondering if this is =
a bit of
overkill. Based on your recommendation, it seems to be.</di=
v>
<div>Maybe I can send some pictures later today, as we are
pulling the engine today for other work.</div>
<div>Phil<br>
<br>
<div dir=3D"ltr">Sent from my iPhone</div>
<div dir=3D"ltr"><br>
<blockquote type=3D"cite">On Nov 22, 2019, at 10:56 PM,
Tony Drews <a href=3D"mailto:tony@tonydrews.com"; target=
=3D"_blank"><tony@tonydrews.com></a>
wrote:<br>
<br>
</blockquote>
</div>
<blockquote type=3D"cite">
<div dir=3D"ltr">=EF=BB=BF
=20
<p>I run that setup, it was an uncle jack trick.=C2=A0
Here's what he wrote about that (on my engine
building tips page):</p>
<p><span style=3D"text-align:left;color:rgb(0,0,0);text=
-transform:none;text-indent:0px;letter-spacing:normal;font-family:Tahoma,He=
lvetica,Arial,sans-serif;font-size:medium;font-style:normal;font-weight:400=
;word-spacing:0px;float:none;display:inline;white-space:normal;background-c=
olor:rgb(255,255,255)">"I also like to strap
the center main to add rigidity to the bottom
end.=C2=A0 To do this, mill off the cast face of th=
e
main flush with the surfaces for the head bolts.
Get a front strap for a Chevy 400 block. You
must enlarge the holes in the strap=C2=A0 and you
must use longer bolts.=C2=A0 Some=C2=A0 builders fe=
el that
this is totally unnecessary, but since starting
to do this, I have never had a main bearing
deteriorate faster than a rod bearing, which is
something that happens more frequently than you
would expect."</span></p>
<div>Regards, Tony Drews<br>
</div>
<div><br>
</div>
<div>On 11/22/2019 3:58 PM,
Phil Gott via Fot wrote:<br>
</div>
<blockquote type=3D"cite">
<pre>Has anyone seen the need to add extra support to=
the center main on the TR wet sleeve engine? We have an engine that has a =
steel bridge cross-bolted underneath and supporting the center main cap. Is=
this needed? Just took 3 factory cranks to the machine shop and all three =
were bent about .002 in (.002 run out at center main when supported on firs=
t and last mains.) Two of these were raced, the third was removed from a ti=
red street engine. note: None of these cranks came out of the engine with e=
xtra support at the center.
Curious as to the need for the extra support.
Thanks,
Phil Gott
114 TR4A
Sent from my iPhone
_______________________________________________
<a href=3D"mailto:fot@autox.team.net"; target=3D"_blank">fot@autox.team.net<=
/a>
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ng.com</a>
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</pre>
</blockquote>
</div>
</blockquote>
</div>
</blockquote>
</div>
</blockquote>
</div>
</blockquote>
=20
</div></blockquote></div></div>____________________________________________=
___<br>
<a href=3D"mailto:fot@autox.team.net"; target=3D"_blank">fot@autox.team.net<=
/a><br>
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</blockquote></div>
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