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Thanks for all of the replies.
>From the condition of the bearing shells, ie no copper showing through etc,
I certainly believe it has been rebuilt at some stage. This may explain the
centre punch dots. You know that feeling you get after you just spent a day
closing up the engine, and you cannot quite be sure if you remembered to
triple check the bearing cap orientation.
Oh and by the way, does any one know is the oilfilter thread sizes were
different between the pre 73 Rover motors to newer models. I now know that
the plugs are different, ie the older motor uses a short reach plug.
Regards
Stuart
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Date: 13 Oct 99 11:20:19
From:David Kernberger <dkern@napanet.net>
To:"Stuart Goggin" <SGOGGIN@au.oracle.com>
Subject:Re: Dots on big end bearing caps.
Cc:buick-rover-v8@autox.team.net, mgb-v8@autox.team.net
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>
>Hello All,
>
>I dropped the sump on my 3.5 rover v8 on the weekend to investigate an unde=
r
>load thumping. I suspected a conrod bearing or main bearing cap. I
>checked a couple of the big end bearings and found them to look like new. =
I
>chekced all of the main bearing cap bolts and they were all torqued up
>pretty tight. most of the conrods had a little sideways movement, but none
>of them would give any twist. I guess if a condrod or main bearing was
>worn sufficicently to give a heavy thump under load at abotu 2000rpm it
>would be very obvious.
>
>I noticed some dot punches on the conrod caps. Some caps had two some had
>three dots. I think most of them pointed to the front of the engine.
>Are these dots ok to assemble the caps by, ie line them up to the front of
>the engine. Do they signify something??
>
>Thanks for any info.
>
>Regards
>Stuart
************************************************
10/12/99
Stuart,
I cannot picture what you mean by "pointed to the front of the
engine." Are you talking about round dots like those made with a
centerpunch?? They certainly do not sound to me like anything original
from the factory. In days gone by, I have heard of people numbering rods
for later reassembly this way, but that would require 1 dot, 2 dots.....7
dots, etc. So what these are is anybody's guess.
At any rate, if you are wanting to remove the caps to check the
bearings, you can be perfectly safe by just removing 1 at a time and
placing each one back the same way it came off. Check the position of the
tangs which prevent bearing shell rotation. The 1 in the rod and the 1 in
the cap must always go on the same side.
Regards,
Dave Kernberger
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