RE: [Chrysler300] how tough are 300C 392 conrod bearings?

["James McMullan" <macthehammer@xxxxxxxxxxxxx>]

Hi chris.Cleavite is a alloy of aluminum, They alloy it to make it softer
as it is too hard for a bearing.The damage you are describing sounds like a
Acid problem.Some one did not change oil ? At least its better than Babbit.
Jim McMullan 300 F


> [Original Message]
> From: christopher beilby <thelastbestgenius@xxxxxxxxxxx>
> To: <Chrysler300@xxxxxxxxxxxxxxx>
> Date: 11/7/2005 2:14:26 AM
> Subject: [Chrysler300] how tough are 300C 392 conrod bearings?
>
> As part of getting ready for my earlier mentioned 'aussie new 300C versus
57 
> 300C' meeting Wednesday, this afternoon I have just put new set of
standard 
> conrod bearings into the 392 motor.
>
> The bearings I took out were dated 1969, Clevite, and although not
showing 
> any wear through to copper, were pretty sad - widespread pock marks, mini 
> cratering, and on one shell, a whole centre piecs about 2/3rds size of
small 
> pea on one side area of centre of shell was gone, down to steel 
> shell/backing. Only about 4-5 shells looked like normal worn/used shells
you 
> would pull from other V8 motors.
>
> Any one got any clues re what is reason/cause, or do 392 hemis really
load 
> their shells more than other motors.  Main bearings looked great, and I
do 
> not normally rev motor over 5000 rpm, but do not know what former
owner/use 
> was.  I know with poured white metal vintage bearings, they can age, this 
> what these seem like as a first look, maybe cause, but in this case would 
> aging be caused by fatigue, rather than time?
>
> Weather forecast for Wednesday is for clearing - normally dry South 
> Australia is close to issuing localised flood warnings after rain that 
> started yesterday - hope they are right, my ex Los Angeles rust free 300
got 
> wet this morning going to garage with a better big hoist to make it
easier I 
> pull the sump.  The bearings just put in came from Egge, are I think King 
> (Israel) , so I hope OK.
>
> yours from oz, Christopher
>
>
>
>
>
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