LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Rebuilt Engine "Break In"

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Old Jul 21, 2008 | 06:20 PM
  #16  
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Yea. My mechanic said my cam was scorn were the bearing spun, so he had to get it machined and put in .010" oversized bearings.
Old Jul 21, 2008 | 11:22 PM
  #17  
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Originally Posted by Granite00
Oversize cam bearings have a larger OD and a stock ID. They are used to repair damage to the block if a cam bearing spins and removes material. Simply installing a stock bearing will not work because the hole in the block is larger after the bearing spins. The machine shop line bores all the cam bearings to a larger diameter, usually like .010. Then the new bearings are installed.
Looks like you guys have two different instances for them. I was thinking more along the lines of the latter, but had never heard of anyone turning a cam down!

Originally Posted by twcblackhand6970
Yea. My mechanic said my cam was scorn were the bearing spun, so he had to get it machined and put in .010" oversized bearings.
Old Jul 22, 2008 | 12:28 AM
  #18  
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Well, I didn't have money to get new springs for a new cam. So he turned it because it was cheaper on my end. $3000 for the bearing replacement, turned cam, new knock sensor, new MAP sensor, new torque converter and some other stuff is way over budget. So I couldn't go any further over my budget than I already did or my gf would go crazy....er
Old Jul 22, 2008 | 01:42 PM
  #19  
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I don't believe in 'breaking in' new motors or new vehicles.

For best results, take your brand new motor or car out on the road and run the **** out of it.
Old Jul 22, 2008 | 08:09 PM
  #20  
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I like that approach, because that's the first thing I want to do since I've been without my car for 2 months
Old Jul 25, 2008 | 12:14 AM
  #21  
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Drive it like a stolen Escalade that you ripped off from the golf club.Them fat white guys can't catch you anyways.
Old Jul 25, 2008 | 01:25 AM
  #22  
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Okay, supposed to get car back this Thursday or Wednesday. He said the rings and the pistons were new and he had to "redo" them when he took apart the engine. I'm guessing he meant he had to take them out for the cylinder check at the machine shop and put them back in. This won't affect anything with the rings sitting will it?
Old Jul 25, 2008 | 07:11 AM
  #23  
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Just get on the beeotch and your fine...just do some WOT runs.
Old Jul 25, 2008 | 08:10 AM
  #24  
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Originally Posted by shoebox
Stay away from Fram filters. AC-Delco, Wix (NAPA Gold) are good and easily available.
I have heard this before on another forum (Geo Metro Forums) but I don't understand why people are bashing Fram filters. I have been running them on my cars since I was 16 years old (32 now). That includes 1 NA 300ZX, 1 Twin Turbo 300ZX, various 4 bangers, my Cobra, & on my freshly rebuilt LT1 in my 1992 Corvette a few years back. I have never had a problem with any of them on my cars.


Not being a smart *** but what is the reason you don't like them. No one ever seems to give one.
Old Jul 25, 2008 | 12:31 PM
  #25  
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Yeah, I used to use FRAM Tough Guard filters on my 5.0L Mustang. I thought they were good.
Old Jul 26, 2008 | 02:38 AM
  #26  
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Since my mechanic had to remove my pistons to get the cylinders checked for the boar of the cylinder and for any scoaring, will the piston rings have to be seated again or how does this work?
Old Jul 26, 2008 | 04:49 PM
  #27  
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?

And also, what does seating the rings really mean? Is it trying to get the rings to expand kinda to be tight on the cylinder or the rings getting pushed down on the pistons? Trying to learn things from the experts
Old Jul 27, 2008 | 03:24 AM
  #28  
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Experts?
Old Jul 27, 2008 | 01:51 PM
  #29  
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Noone knows?
Old Jul 27, 2008 | 11:01 PM
  #30  
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Screw it...loL. I'm going to just drive it hard to make sure the piston rings are seated.



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