6.0 build for blower
#1
TECH Junkie
Thread Starter
Join Date: Jun 2014
Location: At the dump with a clutch
Posts: 3,124
Received 766 Likes
on
564 Posts
6.0 build for blower
Well earlier this week I picked up a 2006 LQ4 with 122k miles out of a wrecked landscape truck. Plan was to throw the TSP 212/218 118lsa cam I had for my 4.8 in it and put it in the truck under the TVS1900.
Well tonight I was pulling the cam everything was cruising along great and about the time I had the cam halfway out it seemed to hit a wall. I had the 5/16 wood dowels in place and the rockers removed completely before I ever began to pull the cam. I also spun the cam around multiple times to make sure it pushed all the lifters up. I tried for a few minutes wiggling and pulling but became concerned. So I flipped the motor over pulled the pan and windage tray to see what was going on. It looks to me like a bearing somehow came out and is wrapped around the cam stopping it from coming out anymore. I wish I could get a good picture but my phones too big to get a decent angle.
Has anyone had this happen before? This is my first cam swap ever but I was taking it step by step from an LS1tech DIY.
What could I have done wrong?
Current parts for build:
TSP 212/218 118lsa
Hardened pushrods
Dual valve springs and retainers
Roller master timing chain
LS9 Head gaskets
ARP 2000 head studs
New GM oil pump (Because I did not get to verify oil pressure on this motor)
New water pump
Innovators west 8rib conversion
New lifter trays
Just about every ARP bolt kit for an LS
New rear main seal
Oil pan seal
Water pump gaskets
Timing cover gasket
Well tonight I was pulling the cam everything was cruising along great and about the time I had the cam halfway out it seemed to hit a wall. I had the 5/16 wood dowels in place and the rockers removed completely before I ever began to pull the cam. I also spun the cam around multiple times to make sure it pushed all the lifters up. I tried for a few minutes wiggling and pulling but became concerned. So I flipped the motor over pulled the pan and windage tray to see what was going on. It looks to me like a bearing somehow came out and is wrapped around the cam stopping it from coming out anymore. I wish I could get a good picture but my phones too big to get a decent angle.
Has anyone had this happen before? This is my first cam swap ever but I was taking it step by step from an LS1tech DIY.
What could I have done wrong?
Current parts for build:
TSP 212/218 118lsa
Hardened pushrods
Dual valve springs and retainers
Roller master timing chain
LS9 Head gaskets
ARP 2000 head studs
New GM oil pump (Because I did not get to verify oil pressure on this motor)
New water pump
Innovators west 8rib conversion
New lifter trays
Just about every ARP bolt kit for an LS
New rear main seal
Oil pan seal
Water pump gaskets
Timing cover gasket
Last edited by dantheman1540; 04-14-2019 at 08:48 PM.
Trending Topics
#8
TECH Junkie
Thread Starter
Join Date: Jun 2014
Location: At the dump with a clutch
Posts: 3,124
Received 766 Likes
on
564 Posts
Tomorrow I'm heading to a local machine shop to talk about having new cam bearings installed and heads cleaned up. Is there anything else I should ask about or consider having done?
#9
Custm2500's Rude Friend
iTrader: (17)
The real question is, did it damage the block? The machine shop will have to measure and inspect it. Likely it will take a new set of bearings. but occasionally you can get one that damaged the block and will not clean up. These are not like a traditional small block where they can hone it it out either. If it's damaged to the point it won't hold a new bearing, the block is junk.
#10
Mod with training wheels
iTrader: (16)
The cam bearing was already Bad. It already spun in the block which is why the cam journal was scoured on the cam as well as the bearing being thin and black.
The real question is, did it damage the block? The machine shop will have to measure and inspect it. Likely it will take a new set of bearings. but occasionally you can get one that damaged the block and will not clean up. These are not like a traditional small block where they can hone it it out either. If it's damaged to the point it won't hold a new bearing, the block is junk.
The real question is, did it damage the block? The machine shop will have to measure and inspect it. Likely it will take a new set of bearings. but occasionally you can get one that damaged the block and will not clean up. These are not like a traditional small block where they can hone it it out either. If it's damaged to the point it won't hold a new bearing, the block is junk.