Doug G

Well I tore into the "new to me" LQ4 that will be going to the machine shop in March (I hope) I need to wait due to $$$$
Anywho...The LQ4 was pulled from an '04 Silverado due to no oil pressure. Well I found the culprit spun cam bearing
Cross hatching still looks good in cylinders.
Pulled #2 and #7 rod caps...both looks GREAT.
Pulled #2 main cap....beautiful.
Pulled cam...wow, tough small prybar and bingo

3pedals

iTrader: (3)

well, is the cam bearing bore salvageable? or do you need another block?

wildcamaro

iTrader: (15)

thats sucks, i would almost always rather a spun main or rod just because of ease of replacement...hopefully it all checks out for ya

Doug G

No way for me to tell... but I would THINK ????? they make a oversize/repair bearing.

BTW...it's an iron block if that makes any difference.

I'll call the shop and see what they say before I take it down there.

3pedals

iTrader: (3)

ya I have heard of oversize repair bearings, but never dealt with that myself, cost it out, another complete JY motor may be less expensive in the end.
Barrett

Doug G

Gory details....yes it can be done but requires roller bearings and a 55mm ? custom cam... Looking at 1000-1300.....Looking for a good core again