Subject: RR main bearing
Author: Kevin Graf
Date: Dec 19, 2002, 6:16 AM
Post ID: 1711602458
Well, I knew my luck was running out with this engine I've been working
on. The top end was beautiful but I pulled the crank a few weeks ago.
The flange and bearing stayed on the crank when it came out. I got
around to pulling the flange off last night. That bearing is trash.What
I thought to be oil canals at first, I now have to believe is where the
sheered piece of the locating pin (oil tube) made a home. ouch. This is
between the OD of the bearing and the ID of the flange. Yup, the bearing
is still stuck on the crank. I'm hoping that the crank is such hard
steel that when the bearing spun most of the damage stayed with the
bearing OD and flange ID. I'll find out when I get the bearing off the
crank.
I did end up finding the piece of the pin that did the majority of the
damage stuck in an oil hole. Hah, Jeeze, all the oil hole where just
packed with crap.
It seems as though the pin worked its way out, the bearing spun a bit,
then the pin tried to seat itself again and sheered. Or something like
that.
Question Time:
1) What is used to hold the pin in place? Locktite, Interference
fit?(hope not 'cause it ain't no interference fit anymore)
2) Just how pricy is the rr main. I know it can't be cheep. That thing
is huge!
3) Are the oversized bearings, oversized in the Id and OD. Meaning if I
need to clean up the flange and crank, can I find a bearing to fit?
4) Good idea to use perminate locktite between the flange and OD of the
bearing?
5) How much for a pin?
Thanks,
Kev