Well, I certainly bought the tool you need to do that and one of these
magnetic holders. After the installation of the TW, the slop is 0.15
milimeters. But this is only valid for a couple of miles. Depressing the
clutch gives nice dong-dong-dong sound until the TW at the end of the
engine is a kind of toasted through the worn main bearing cap into the oil
pan. Then the sound vanishes as does the clutch. Maybe the third TW is a
good idea.
I've never seen a main bearing cap get worn as you describe. Perhaps the
block has been damaged from a TW dropping out, the crank and block wore
down
some, new TW's were installed and they wore down enough to work their way
out
past the cap.... etc...
If you put in new TW's, is there still significant (more than spec) slop
there? Then the block and crank have been damaged... the rest is
history...
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