>
>Hello All,
>
>I dropped the sump on my 3.5 rover v8 on the weekend to investigate an under
>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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