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Re: [Fot] Rear Main Cap

To: Rick Parent <rick.parent@att.net>
Subject: Re: [Fot] Rear Main Cap
From: Rod Pierce via Fot <fot@autox.team.net>
Date: Sat, 18 Mar 2023 17:00:59 -0400
Cc: FOT Triumph <fot@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: fot@autox.team.net
References: <387882807.1976229.1679159579396@mail.yahoo.com> <2F272D05-1CFE-4F6E-93A9-ACB268E4CF11@me.com> <CAELLCgemZk2B8OPTRDm0AwAa0fZA_upELtmWC+=XaFaJsjPQYw@mail.gmail.com> <1858467326.2027548.1679172293392@mail.yahoo.com>
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Based on how far off the bearing is offset, I wanted to rule out
differences in model years for the 1300.

It seems the answer to my original question is that there was considerable
variation in engines that came off the assembly line when these cars were
made.

Solid evidence of why you don't mismatch bearing caps!

Thanks for the input.

On Sat, Mar 18, 2023, 4:44 PM Rick Parent <rick.parent@att.net> wrote:

> No, you can't fix that without finding a better cap that matches the
> groove in the block. I just mentioned the align hone because of the weird
> looking bearing wipe on the left side of the cap.
>
> Rick Parent
>
> "*Doing the right thing is always the right thing, regardless of
> consequences*"
>
>
>
> On Saturday, March 18, 2023 at 12:38:52 PM MST, Rod Pierce via Fot <
> fot@autox.team.net> wrote:
>
>
> So are you saying the lack of line honing would cause the bearing offset?
>
>  Supposedly this block was line honed.
>
> On Sat, Mar 18, 2023, 2:10 PM Scott Janzen via Fot <fot@autox.team.net>
> wrote:
>
> One of the mysteries of a big batch of GT6 parts and cars i picked up som=
e
> years ago was a box of 50+(!) main caps, which i still have.
> Also got two blocks (with no caps), but why would anyone separate all
> these?  Nothing to do but laugh when i discovered them.
> Box makes a nice heavy doorstop.
>
> Sent from my iPhone
>
> On Mar 18, 2023, at 6:27 PM, ralph hansen via Fot <fot@autox.team.net>
> wrote:
>
> =EF=BB=BF
> main caps are machined as a set to the block itself - if you need to
> replace a cap, good luck finding a cap with the grooves lining up / if yo=
u
> do get lucky you'll need to get the block and caps line bored to make it
> all work properly
>
>
> On Saturday, March 18, 2023 at 08:26:23 AM CDT, Rod Pierce via Fot <
> fot@autox.team.net> wrote:
>
>
> The image shows the rear main cap and bearing on a small journal 1300.
>
> As you can see, there is an offset between the two bearing halves.
>
> I was attempting to mix and match parts from my parts bin.
>
> I'm curious about the source of the offset.  Is there a difference in end
> caps from year to year on the 1300 or is there a difference from engine t=
o
> engine when they were manufactured?
> _______________________________________________
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>
> http://www.fot-racing.com
>
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> _______________________________________________
> fot@autox.team.net
>
> http://www.fot-racing.com
>
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<div dir=3D"auto"><div dir=3D"auto">Based on how far off the bearing is off=
set, I wanted to rule out differences in model years for the 1300.</div><di=
v dir=3D"auto"><br></div>It seems the answer to my original question is tha=
t there was considerable variation in engines that came off the assembly li=
ne when these cars were made.<div dir=3D"auto"><br></div><div dir=3D"auto">=
Solid evidence of why you don&#39;t mismatch bearing caps!</div><div dir=3D=
"auto"><br></div><div dir=3D"auto">Thanks for the input.</div></div><br><di=
v class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sat, Mar 1=
8, 2023, 4:44 PM Rick Parent &lt;<a href=3D"mailto:rick.parent@att.net";>ric=
k.parent@att.net</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" =
style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><di=
v><div style=3D"font-family:Helvetica Neue,Helvetica,Arial,sans-serif;font-=
size:16px"><div><div dir=3D"ltr">No, you can&#39;t fix that without finding=
 a better cap that matches the groove in the block. I just mentioned the al=
ign hone because of the weird looking bearing wipe on the left side of the =
cap.</div><div><br></div><div><div style=3D"font-family:Helvetica,Arial,san=
s-serif;font-size:16px"><div dir=3D"ltr">Rick Parent</div><div dir=3D"ltr">=
<br></div><div dir=3D"ltr">&quot;<i>Doing the right thing is always the rig=
ht thing, regardless of consequences</i>&quot;</div><div dir=3D"ltr"><br></=
div></div></div></div>
        <div><br></div><div><br></div>
       =20
        </div><div id=3D"m_-7430944598904451771yahoo_quoted_9861563092">
            <div style=3D"font-family:&#39;Helvetica Neue&#39;,Helvetica,Ar=
ial,sans-serif;font-size:13px;color:#26282a">
               =20
                <div>
                    On Saturday, March 18, 2023 at 12:38:52 PM MST, Rod Pie=
rce via Fot &lt;<a href=3D"mailto:fot@autox.team.net"; target=3D"_blank" rel=
=3D"noreferrer">fot@autox.team.net</a>&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div id=3D"m_-7430944598904451771yiv7329090762"><div><=
div>So are you saying the lack of line honing would cause the bearing offse=
t?=C2=A0<div><br clear=3D"none"></div><div>=C2=A0Supposedly this block was =
line honed.</div></div><br clear=3D"none"><div><div id=3D"m_-74309445989044=
51771yiv7329090762yqt64227"><div dir=3D"ltr">On Sat, Mar 18, 2023, 2:10 PM =
Scott Janzen via Fot &lt;<a rel=3D"nofollow noopener noreferrer noreferrer"=
 shape=3D"rect" href=3D"mailto:fot@autox.team.net"; target=3D"_blank">fot@au=
tox.team.net</a>&gt; wrote:<br clear=3D"none"></div><blockquote style=3D"ma=
rgin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>One of th=
e mysteries of a big batch of GT6 parts and cars i picked up some years ago=
 was a box of 50+(!) main caps, which i still have.<div>Also got two blocks=
 (with no caps), but why would anyone separate all these?=C2=A0 Nothing to =
do but laugh when i discovered them.</div><div>Box makes a nice heavy doors=
top.<br clear=3D"none"><br clear=3D"none"><div dir=3D"ltr">Sent from my iPh=
one</div><div dir=3D"ltr"><br clear=3D"none"><blockquote type=3D"cite">On M=
ar 18, 2023, at 6:27 PM, ralph hansen via Fot &lt;<a rel=3D"nofollow noopen=
er noreferrer noreferrer" shape=3D"rect" href=3D"mailto:fot@autox.team.net"=
 target=3D"_blank">fot@autox.team.net</a>&gt; wrote:<br clear=3D"none"><br =
clear=3D"none"></blockquote></div><blockquote type=3D"cite"><div dir=3D"ltr=
">=EF=BB=BF<div style=3D"font-family:Helvetica Neue,Helvetica,Arial,sans-se=
rif;font-size:13px"><div></div>
        <div dir=3D"ltr">main caps are machined as a set to the block itsel=
f - if you need to replace a cap, good luck finding a cap with the grooves =
lining up / if you do get lucky you&#39;ll need to get the block and caps l=
ine bored to make it all work properly</div><div dir=3D"ltr"><br clear=3D"n=
one"></div><div><br clear=3D"none"></div>
       =20
        </div><div id=3D"m_-7430944598904451771yiv7329090762m_4678317641249=
648023ydpb811c912yahoo_quoted_9452291401">
            <div style=3D"font-family:&#39;Helvetica Neue&#39;,Helvetica,Ar=
ial,sans-serif;font-size:13px;color:#26282a">
               =20
                <div>
                    On Saturday, March 18, 2023 at 08:26:23 AM CDT, Rod Pie=
rce via Fot &lt;<a rel=3D"nofollow noopener noreferrer noreferrer" shape=3D=
"rect" href=3D"mailto:fot@autox.team.net"; target=3D"_blank">fot@autox.team.=
net</a>&gt; wrote:
                </div>
                <div><br clear=3D"none"></div>
                <div><br clear=3D"none"></div>
                <div><div id=3D"m_-7430944598904451771yiv7329090762m_467831=
7641249648023ydpb811c912yiv2893372826"><div>The image shows the rear main c=
ap and bearing on a small journal 1300.<div><br clear=3D"none"></div><div>A=
s=C2=A0you can see, there is an offset between the two bearing halves.=C2=
=A0</div><div><br clear=3D"none"></div><div>I was attempting to mix and mat=
ch parts from my parts bin.</div><div><br clear=3D"none"></div><div>I&#39;m=
 curious about the source of the offset.=C2=A0 Is there a difference in end=
 caps from year to year on the 1300 or is there a difference from engine to=
 engine when they were manufactured?</div></div>
</div>_______________________________________________<br clear=3D"none"><a =
rel=3D"nofollow noopener noreferrer noreferrer" shape=3D"rect" href=3D"mail=
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