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Looking for some pearls of wisdom from the more experienced among us. Very
frustrating as the car runs so well with good oil pressure and compression.
After many months of tests and checking have established that the block on
my BJ8 has the porosity issue. This is not the well known oil into water
but water into oil. (after 1000 mi, 3300ppm into oil) I did find an area
behind the center tappet cover where water was oozing into the drain back
from the rocker. Did my best to repair it with epoxy from the outside. No
doubt it is leaking there or some place else. Fellow lister Wayne Schultz
had the identical problem.
My query is if there is a known solution to this problem ? resin
impregnation ? or maybe a modern treatment ?
Also have located some replacement blocks but how to test ? and be assured
that these old blocks also don't develop the same problem ?
Changing blocks invariably means a complete engine rebuild.
How common is this ?
All very painful.
rg
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<div dir=3D"ltr"><div>Looking for some pearls of wisdom from the more exper=
ienced among us. Very frustrating as the car runs so well with good oil pre=
ssure and compression.<br></div><div>After many months of tests and checkin=
g have established that the block on my BJ8 has the porosity issue. This is=
not the well known oil into water but water into oil. (after 1000 mi, 3300=
ppm into oil) I did find an area behind the center tappet cover where water=
was oozing into the drain back from the rocker. Did my best to repair it w=
ith epoxy from the outside. No doubt it is leaking there or some place else=
. Fellow lister Wayne Schultz had the identical problem.<br></div><div>My q=
uery is if there is a known solution to this problem ? resin impregnation ?=
or maybe a modern treatment ?<br></div><div>Also have located some replace=
ment blocks but how to test ? and be assured that these old blocks also don=
't develop the same problem ?</div><div>Changing blocks invariably mean=
s a complete engine rebuild.<br></div><div>How common is this ? <br></div><=
div>All very painful.</div><div>rg<br></div></div>
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