Subject: Crank, sludge trap
Author: Kevin Graf
Date: Jun 12, 2003, 7:38 AM
Post ID: 1713361733
Hey guys,
Pete, The sludge trap is "built" into the crank. The mid section, where
the rods live, is hollow to allow oiling to the RR Main, big end & Frt
crank bearing. I'm not sure how many others(if any) have this design,
but anyways, Guzzi was thinking that centrifugal(sp?) force from the
crank spinning would separate & trap the sludge from your oil into that
mid section while the oil would go on it's marry way.
Must work 'cause the crank gets alot o' crap built up in there, esp.
after 30 some years.
Rich is right, can't get to it without removing the crank. If you ever
have to pull the crank, It's a alluminum(sp?)10mm allen plug. It's
peened from the factory, with the idea that, as it is removed the
threads strip out and there's no way around having to buy a new one. I
guess some come out with no harm done (the ones I've done have) and
others strip out like they were supposed to do. They're pretty cheap if
it does strip out.
After claening out all the crap and making sure the oil passages are
clear, I apply red loctite to the plug and peen it over again with a
punch, drift, whatever.
Hope this helped.
Kev