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Very difficult to find main caps that just require a line bore. The
centerline of the bore can be off in the vertical and one of the mating
surfaces can be machined to bring the centerline of the bore up or down.
If the centerline was bored even a fraction laterally, you are screwed.
Your only option is to find someone that has rebuilt a lot of Healey
engines. Usually they have a box of main caps left over from years of
engine assembly. You might get lucky and find main caps that are centered
laterally. A whole set might be a little difficult though. That's how I
got lucky with my 100 engine build. I was given a block with one end main
cap. I got lucky and found two more caps on Ebay among a bunch of six
cylinder parts someone was selling. The two mail caps were the ones I
needed, but the centerline was off in the vertical. A little machining of
the faces of the caps brought it down right in line. A quick line bore and
the crank spun around a revolution by hand. The assembly and how I
acquired the parts for this engine is a story in itself. Starting off with
a bottom end with only one main cap and a chunk of cast iron broken out of
the water pump hole like someone got frustrated be cause the could not get
the bottom stud and nut out and just levered the pump down and broke the
piece of the block out like someone took a bite of the hole the impeller
goes in. Ever try to find someone that can braze cast iron well? Every
part acquisition was a story in itself.
Mike MacLean
On Fri, Feb 9, 2024 at 10:28=E2=80=AFAM Chris Scholz via Healeys <
healeys@autox.team.net> wrote:
> I had a similar incident. I swapped in an aluminum LS1 with an GM
> transmission. My car is 200lbs lighter and so much more fun to drive. M=
y
> reliability is excellent.
> Sent from my iPhone
> Chris Scholz OD
>
> On Feb 9, 2024, at 10:13=E2=80=AFAM, rfbegani@gmail.com wrote:
>
> =EF=BB=BF
>
> Gentlemen:
>
>
>
> I arrived back to Florida in May and decide to drive my 67 Austin-Healey.
> Drove it a mile and heard clanking engine, looked at the oil pressure, It
> was O! Instead of stooping to have towed home, I drove it back slowly.
> Last month, I dropped the pan and started to remove the rod and crank cap=
s
> and bearings. My mechanic friend said you got lucky the crank may only
> need polishing and new bearings. So, I packed and marked each of the mai=
n
> bearing caps, bolts, and bearings along with piston rods and caps in
> individual plastic bags. Then packed them into a larger plastic bag which
> was put under the workbench near the garbage. We towed the car to Mikes
> garage so he could pull and disassemble the engine. Tuesday, he asked me
> to bring the parts I had removed from the engine so he would have
> everything in one place. I looked around but could not find this black
> plastic bag and then remembered it got pitched in the garbage. So, I am n=
ow
> up the famous creek and am asking this group what I can do?
>
>
>
> 1. I am told the engine is finished because the Main Bearing caps are
> not available and even if you could find them, they would need to be l=
ine
> bored on the engine.
> 2. I am told that finding an engine block for a 3000 with original
> main bearing caps is almost impossible.
> 3. Finding an engine to be rebuild might be possible.
>
>
>
> My engine was rebuilt 6000 miles with years ago everything new, so I woul=
d
> like to find a way of fixing the existing engine, if possible.
>
>
>
> Please give me your advice.
>
>
>
> Best regards,
>
>
>
> Bob Begani
>
> 67 Austin-Healey BJ8
>
>
>
>
> _______________________________________________
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>
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>
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<div dir=3D"ltr"><div>Very difficult to find main caps that just require a =
line bore.=C2=A0 The centerline of the bore can be off in the vertical and =
one of the mating surfaces can be machined to bring the centerline of the b=
ore up or down.=C2=A0 If the centerline was bored even a fraction laterally=
, you are screwed.=C2=A0 Your only option is to find someone that has rebui=
lt a lot of Healey engines.=C2=A0 Usually they have a box of main caps left=
over from years of engine assembly.=C2=A0 You might get lucky and find mai=
n caps that are centered laterally.=C2=A0 A whole set might be a little dif=
ficult though.=C2=A0 That's how I got lucky with my 100 engine build. I=
was given a block with one end main cap.=C2=A0 I got lucky and found two m=
ore caps on Ebay among a bunch of six cylinder parts someone was selling.=
=C2=A0 The two mail caps were the ones I needed, but the centerline was off=
in the vertical.=C2=A0 A little machining of the faces of the caps brought=
it down right in line. A quick line bore and the crank spun around a revol=
ution by hand.=C2=A0 The assembly and how I acquired the parts for this eng=
ine is a story in itself.=C2=A0 Starting off with a bottom end with only on=
e main cap and a chunk of cast iron broken out of the water pump hole like =
someone got frustrated be cause the could not get the bottom stud and nut o=
ut and just levered the pump down and broke the piece of the block out like=
someone took a bite of the hole the impeller goes in.=C2=A0 Ever try to fi=
nd someone that can braze cast iron well?=C2=A0 Every part acquisition was =
a story in itself.<br></div><div>Mike MacLean<br></div></div><br><div class=
=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Fri, Feb 9, 2024 =
at 10:28=E2=80=AFAM Chris Scholz via Healeys <<a href=3D"mailto:healeys@=
autox.team.net">healeys@autox.team.net</a>> wrote:<br></div><blockquote =
class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px sol=
id rgb(204,204,204);padding-left:1ex">
<div dir=3D"auto">
I had a similar incident.=C2=A0 I swapped in an aluminum LS1 with an GM tra=
nsmission.=C2=A0 My car is 200lbs lighter and so much more fun to drive.=C2=
=A0 My reliability is excellent. =C2=A0<br id=3D"m_-2086963957703671542line=
BreakAtBeginningOfSignature">
<div dir=3D"ltr">Sent from my iPhone
<div>Chris Scholz OD</div>
</div>
<div dir=3D"ltr"><br>
<blockquote type=3D"cite">On Feb 9, 2024, at 10:13=E2=80=AFAM, <a href=3D"m=
ailto:rfbegani@gmail.com" target=3D"_blank">rfbegani@gmail.com</a> wrote:<b=
r>
<br>
</blockquote>
</div>
<blockquote type=3D"cite">
<div dir=3D"ltr">=EF=BB=BF
=20
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:16pt;font-family:"Aria=
l",sans-serif">Gentlemen:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:16pt;font-family:"Aria=
l",sans-serif"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:16pt;font-family:"Aria=
l",sans-serif">I arrived back to Florida in May and decide to drive my=
67 Austin-Healey.=C2=A0 Drove it a mile and heard clanking engine, looked =
at the oil pressure, It was O! Instead of stooping
to have towed home, I drove it back slowly.=C2=A0 Last month, I dropped th=
e pan and started to remove the rod and crank caps and bearings.=C2=A0 My m=
echanic friend said you got lucky the crank may only need polishing and new=
bearings.=C2=A0 So, I packed and marked each of
the main bearing caps, bolts, and bearings along with piston rods and caps=
in individual plastic bags. Then packed them into a larger plastic bag whi=
ch was put under the workbench near the garbage.=C2=A0 We towed the car to =
Mikes garage so he could pull and disassemble
the engine.=C2=A0 Tuesday, he asked me to bring the parts I had removed fr=
om the engine so he would have everything in one place.=C2=A0 I looked arou=
nd but could not find this black plastic bag and then remembered it got pit=
ched in the garbage. So, I am now up the famous
creek and am asking this group what I can do?<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:16pt;font-family:"Aria=
l",sans-serif"><u></u>=C2=A0<u></u></span></p>
<ol style=3D"margin-top:0in" start=3D"1" type=3D"1">
<li style=3D"margin-left:0in"><span style=3D"font-size:16pt;font-family:&qu=
ot;Arial",sans-serif">I am told the engine is finished because the Mai=
n Bearing caps are not available and even if you could find them, they
would need to be line bored on the engine.<u></u><u></u></span></li><li st=
yle=3D"margin-left:0in"><span style=3D"font-size:16pt;font-family:"Ari=
al",sans-serif">I am told that finding an engine block for a 3000 with=
original main bearing caps is almost impossible.<u></u><u></u></span></li>=
<li style=3D"margin-left:0in"><span style=3D"font-size:16pt;font-family:&qu=
ot;Arial",sans-serif">Finding an engine to be rebuild might be possibl=
e.<u></u><u></u></span></li></ol>
<p class=3D"MsoNormal"><span style=3D"font-size:16pt;font-family:"Aria=
l",sans-serif"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:16pt;font-family:"Aria=
l",sans-serif">My engine was rebuilt 6000 miles with years ago everyth=
ing new, so I would like to find a way of fixing the existing engine, if po=
ssible.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:16pt;font-family:"Aria=
l",sans-serif"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:16pt;font-family:"Aria=
l",sans-serif">Please give me your advice.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:16pt;font-family:"Aria=
l",sans-serif"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:16pt;font-family:"Aria=
l",sans-serif">Best regards,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:16pt;font-family:"Aria=
l",sans-serif"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:16pt;font-family:"Aria=
l",sans-serif">Bob Begani<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:16pt;font-family:"Aria=
l",sans-serif">67 Austin-Healey BJ8<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:16pt;font-family:"Aria=
l",sans-serif"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:16pt;font-family:"Aria=
l",sans-serif"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
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</blockquote>
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