who has spun a main bearing in here?
#1
TECH Addict
Thread Starter
iTrader: (9)
Join Date: Apr 2002
Location: Texas, it's like your state, but better.
Posts: 2,085
Likes: 0
Received 0 Likes
on
0 Posts
who has spun a main bearing in here?
and what did it sound like? im trying to diagnose a problem as this or an oil pump failure. anyone experience this?
#3
Restricted User
iTrader: (43)
Join Date: Nov 2001
Location: Pittsburgh, PA
Posts: 2,669
Likes: 0
Received 0 Likes
on
0 Posts
Re: who has spun a main bearing in here?
My pump went out at 6400 rpm during a run and I could feel it start to tighten up. My knock was real loud. 4 spun rod bearings. Watch the oil pressure. It would show some pressure then drop to zero.
#4
TECH Addict
Thread Starter
iTrader: (9)
Join Date: Apr 2002
Location: Texas, it's like your state, but better.
Posts: 2,085
Likes: 0
Received 0 Likes
on
0 Posts
Re: who has spun a main bearing in here?
well, this is definately not a rod, im pretty familiar with that noise. it's a constant whine, like a belt, but i've started it w/o any belts on and it's still there. the oil had run about 2 quarts low but never below 40psi @ idle and never less than 50 psi opened up. i drove it 20 miles home yesterday, w/o any problems, then when i pull it in the driveway, let it idle, this starts in.
#5
LS1Tech Co-Founder
iTrader: (34)
Re: who has spun a main bearing in here?
I spun two main bearings back in 1999, oil pressure would fluctuate once the car was warmed up and it would knock around 2500 rpms and the oil looked like it had gray paint in it.
#6
TECH Addict
Thread Starter
iTrader: (9)
Join Date: Apr 2002
Location: Texas, it's like your state, but better.
Posts: 2,085
Likes: 0
Received 0 Likes
on
0 Posts
Re: who has spun a main bearing in here?
thanks for the imput guys, i think this might be something diffrent, maybe an oil pump issue or timing chain problem. the motor runs fine, i just havent driven it since this started.
#7
TECH Addict
Thread Starter
iTrader: (9)
Join Date: Apr 2002
Location: Texas, it's like your state, but better.
Posts: 2,085
Likes: 0
Received 0 Likes
on
0 Posts
Re: who has spun a main bearing in here?
this all started right after my LS6 valley cover install, maybe something foriegn got into the motor, and thats what's causing the noise. (just thinking out loud)
Trending Topics
#11
TECH Addict
Thread Starter
iTrader: (9)
Join Date: Apr 2002
Location: Texas, it's like your state, but better.
Posts: 2,085
Likes: 0
Received 0 Likes
on
0 Posts
Re: who has spun a main bearing in here?
update:
got it most of the way apart last night, havent got the oil pan off as of yet, (man what a pain.) but it was definately not the pump. i took it all apart and checked it over, no issues, no forigen material. the funny thing is that there was NO metal in the oil, anywhere. but there was oil all over the underbody. definately low, but i still had 3-3.5 quarts in there. this is drivin me batty..
got it most of the way apart last night, havent got the oil pan off as of yet, (man what a pain.) but it was definately not the pump. i took it all apart and checked it over, no issues, no forigen material. the funny thing is that there was NO metal in the oil, anywhere. but there was oil all over the underbody. definately low, but i still had 3-3.5 quarts in there. this is drivin me batty..