jclayc

iTrader: (8)

Hi everyone, I'm in the process of doing my first heads and cam upgrade on my 2005 LS6 CTS-V. When I pulled the cam, I noticed the front bearing looked like the picture below. What's this condition called & is it bad enough to replace the bearing? Can I replace this bearing w/o pulling the engine? The other bearings, deeper in the engine, do not look like this.

(Before I pulled everything apart, I didn't have any indications of anything wrong and the cam itself looks un-scored/good. )

Burken01

iTrader: (88)

Pic is blurry, is that surface rust or is material missing from it?

jclayc

iTrader: (8)

looks like it's material missing to me

RockinWs6

Better change that one, Its toast.

yota

iTrader: (3)

Either way, that bearing needs to come out and be replaced. I personally wouldn't run it like that.

jclayc

iTrader: (8)

better pic - how tough is this to change?

slt200mph

iTrader: (42)

Time for new cam bearings...

97FormulaWS-6

iTrader: (1)

Yea, that's really bad...

jclayc

iTrader: (8)

Can I do it with the engine (and crank) in the car?

LS1MCSS

iTrader: (18)

If you don't have the right install tool, you can't do it at all. If you have a friend with a cam bearing tool, they might be able to change it with the motor still in the car.

Cwarta

iTrader: (12)

Make sure you get the holes lined up

jclayc

iTrader: (8)

I'm willing to buy the right tool - Lisle 18000 looks like it would work.

from what I'm reading, to install the #1 bearing, I've got to put the guide cone in through the rear of the engine to make sure everything goes in straight. Not sure if that'll happen http://www.lislecorp.com/uploads/ins...6DD9726DB5.pdf