Cam bearing replacement with engine in car ?
Thread Starter
Teching In
Joined: Feb 2009
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Cam bearing replacement with engine in car ? While swapping cams in my 5.3 Silverado the #2 cam bearing cam out and is sitting in the engine. The attached photos show what looks like a crack in the bearing and some wear on the cam bearing journal.
I was looking at this tool,
hoping that I can replace all the bearings without having to remove the engine, which is something I have never done and don't have the tools for.
This started as a heads/cam swap and is turning into a Can-O-worms.
Any advice would be greatly appreciated.
I was looking at this tool,
hoping that I can replace all the bearings without having to remove the engine, which is something I have never done and don't have the tools for.
This started as a heads/cam swap and is turning into a Can-O-worms.
Any advice would be greatly appreciated.
12 Second Club
Joined: Feb 2014
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From: Jacksonville, FL
Had the same thing happen to a 5.3 I bought a while ago. I would first try to get the old bearing out and see if it spun in the block... If it did spin, I would start looking for a new block to put in.
Thread Starter
Teching In
Joined: Feb 2009
Posts: 16
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As it turns out, two of the cam bearings turned and ruined the block.
I bought a 5.3 "327" Chevy Performance crate motor instead of a GM reman. I should have the engine next week. Dan at LaFontaine Performance was very helpful.
http://www.chevrolet.com/performance...nes/ls327.html
I bought a 5.3 "327" Chevy Performance crate motor instead of a GM reman. I should have the engine next week. Dan at LaFontaine Performance was very helpful.
http://www.chevrolet.com/performance...nes/ls327.html
Say that the block wasn't ruined.... just FYI. You can only pull out 3 of the 5 bearings from the front. For the other two you would have to remove the transmission and rear cover. Might be possible in a truck but I am not sure you would of had the room in a car's tunnel.
A spun bearing does not make a destroyed block, most of the time. Over sized bearings are available. Just have to get the bores honed. Motor needs to come out of course.
Last edited by Exidous; Jun 23, 2015 at 01:37 PM.
Durabond
Standard Bearings
CH-4A (.01" over)
High Performance Bearings
CHP-8R1 (.01" over)
CHP-8R1T (.01" over)coated
CHP-8R2 (.02" over)
CHP-8R2T (.02" over)coated
CHP-8R3 (.03" over)
CHP-8R3T (.03" over)coated
CHP-8R4 (.04" over)
CHP-8R4T (.04" over)coated
Lot of options for a jacked up bore once fixed.
Summit racing says they are for SBC's but durabond says they are for first style LS motors. Summit also says 2002 chevy v8 but only lists gen I and II motors....not III. I think I'll trust durabonds site. :-)
http://www.dura-bondbearing.com/Parts-Look-Up search 2002 camaro v8
Standard Bearings
CH-4A (.01" over)
High Performance Bearings
CHP-8R1 (.01" over)
CHP-8R1T (.01" over)coated
CHP-8R2 (.02" over)
CHP-8R2T (.02" over)coated
CHP-8R3 (.03" over)
CHP-8R3T (.03" over)coated
CHP-8R4 (.04" over)
CHP-8R4T (.04" over)coated
Lot of options for a jacked up bore once fixed.
Summit racing says they are for SBC's but durabond says they are for first style LS motors. Summit also says 2002 chevy v8 but only lists gen I and II motors....not III. I think I'll trust durabonds site. :-)
http://www.dura-bondbearing.com/Parts-Look-Up search 2002 camaro v8
