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The math says:The cross sectional area of a 5/16 bolt is 0.076 sq in.=C2=
=A0 But the tensile strength of a grade 5 bolt is in the range of 100,000 P=
SI which means a 5/16 bolt will pull apart at about 7,700 lbs.=C2=A0 Liftin=
g a 600 lb engine with four bolts good for 7,000 lbs leaves a pretty genero=
us safety margin.
=20
Dave=20
=20
=20
-----Original Message-----
From: GLEMON <GLEMON@neb.rr.com>
To: 'Bob Nogueira' <nogera@hotmail.com>; 'Triumphs list' <Triumphs@autox.te=
am.net>
Sent: Wed, Oct 24, 2018 9:00 pm
Subject: Re: [TR] Engine stand
Don't let these guys make you feel bad about asking the question, freaks me=
out too.=C2=A0 If you look at the factory manual for a Healey big six they=
pull it out with a special tool on the valve cover studs, which are not ve=
ry substantial.=C2=A0=C2=A0
I have decided intellectually the 5/16" bolts are not something I need to w=
orry about, but it still looks like a lot of weight held on by some little =
sticks to me.
However, a big six will tilt a small three point engine stand pretty easily=
if a wheel catches on some kitty litter when you try to push it.
Greg LemonTR250
-----------------------------------------From: "Bob Nogueira"=20
To: "Triumphs list"
Cc:=20
Sent: Tuesday October 23 2018 2:15:26PM
Subject: [TR] Engine stand
I=E2=80=99m about to rebuild my TR 4 engine. I=E2=80=99ve done it three ti=
mes in the past so there=E2=80=99s not much I=E2=80=99m worried about. The =
one thing that freaks me out is suspending the engine on the engine stand b=
y four 5/16 inch bolts. Every time I see it sitting there I freak out that =
the bolts are going to snap and the engine is going to come crashing down.
Two things I=E2=80=99ve done to relieve my paranoia is add a cross beam on=
the front so it has four wheels not the original three and keep a two by f=
our between the front of the engine and the leg to carry the weight of the =
suspended engine.
Two questions, am I being paranoid and should I use grade 5 or grade 8 bol=
ts to fasten the engine to the stand?
=20
Thanks for any advise.
=20
Bob Nogueira=20
** triumphs@autox.team.net **
=20
Donate: http://www.team.net/donate.html
/> Archive: http://www.team.net/pipermail/triumphs http://www.team.net/arc=
hive
/>=20
Unsubscribe/Manage: http://autox.team.net/mailman/options/triumphs/glemon@=
neb.rr.com
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Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archiv=
e
sey@cs.com
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<font color=3D'black' size=3D'3' face=3D'Arial, Helvetica, sans-serif'>
<div> <font size=3D"3">The math says:</font></div>
<div><font size=3D"3">The cross sectional area of a 5/16 bolt is 0.076 sq i=
n. But the tensile strength of a grade 5 bolt is in the range of 100,=
000 PSI which means a 5/16 bolt will pull apart at about 7,700 lbs. L=
ifting a 600 lb engine with four bolts good for 7,000 lbs leaves a pretty g=
enerous safety margin.</font><br>
</div>
<div> <br>
</div>
<div style=3D"clear:both"><font size=3D"4">Dave </font><br>
<br>
</div>
<div> <br>
</div>
<div> <br>
</div>
<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black">-----=
Original Message-----<br>
From: GLEMON <GLEMON@neb.rr.com><br>
To: 'Bob Nogueira' <nogera@hotmail.com>; 'Triumphs list' <Triumphs=
@autox.team.net><br>
Sent: Wed, Oct 24, 2018 9:00 pm<br>
Subject: Re: [TR] Engine stand<br>
<br>
<div id=3D"yiv0091344634">
<div>Don't let these guys make you feel bad about asking the question, frea=
ks me out too. If you look at the factory manual for a Healey big six=
they pull it out with a special tool on the valve cover studs, which are n=
ot very substantial.
<div><br>
</div>
<div>I have decided intellectually the 5/16" bolts are not something I need=
to worry about, but it still looks like a lot of weight held on by some li=
ttle sticks to me.</div>
<div><br>
</div>
<div>However, a big six will tilt a small three point engine stand pretty e=
asily if a wheel catches on some kitty litter when you try to push it.</div=
>
<div><br>
</div>
<div>Greg Lemon</div>
<div>TR250<br>
<br>
<div class=3D"yiv0091344634reply-new-signature"></div>
<div>-----------------------------------------</div>
From: "Bob Nogueira" <br>
<br>
<div> To: "Triumphs list"<br>
Cc: <br>
Sent: Tuesday October 23 2018 2:15:26PM<br>
Subject: [TR] Engine stand<br>
<br>
I=E2=80=99m about to rebuild my TR 4 engine. I=E2=80=99ve done it three ti=
mes in the past so there=E2=80=99s not much I=E2=80=99m worried about. The =
one thing that freaks me out is suspending the engine on the engine stand b=
y four 5/16 inch bolts. Every time I see it sitting there I freak out that =
the bolts are going to snap and the engine is going to come crashing down.<=
br>
Two things I=E2=80=99ve done to relieve my paranoia is add a cross beam on=
the front so it has four wheels not the original three and keep a two by f=
our between the front of the engine and the leg to carry the weight of the =
suspended engine.<br>
Two questions, am I being paranoid and should I use grade 5 or grade 8 bol=
ts to fasten the engine to the stand?<br>
<br>
Thanks for any advise.<br>
<br>
Bob Nogueira <br>
** triumphs@autox.team.net **<br>
<br>
Donate: <a rel=3D"noopener noreferrer" target=3D"_blank" removedlink__4413=
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