C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Brake-in for new cam

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Old Jul 31, 2003 | 03:31 PM
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Default Brake-in for new cam

I've read in John Lingenfelter's book that on first start, engine should be
immediately reved to 1500-2000 rpm and kept like that for 15-20 minutes.

How did You brake-in your new cam?
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Old Jul 31, 2003 | 03:39 PM
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Default Re: Brake-in for new cam (Sliding)

At least 20 minutes above 2000 rpm! Sounds and feels great with open headers! What a rush!

The increased idle speed insures proper lubrication and tappet spin to allow a proper wear pattern to develope! Then for about 500 miles avoid driving at a constant speed for long periods of time. You don't have to blip the throttle but gentle increases and decreases...after that you're gold!

:cheers:
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Old Jul 31, 2003 | 03:43 PM
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Default Re: Brake-in for new cam (Sliding)

I've read in John Lingenfelter's book that on first start, engine should be immediately reved to 1500-2000 rpm and kept like that for 15-20 minutes.
This is correct for a non-roller cam. Roller camshafts need no break-in period, just let the engine warm up and run it.
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Old Jul 31, 2003 | 03:53 PM
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Default Re: Brake-in for new cam (Sliding)

Though roller lifters don't rotate it is likely a good idea as the other valve train components still need to wear in on initial startup.
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Old Jul 31, 2003 | 04:46 PM
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Default Re: Brake-in for new cam (Sliding)

You have a Roller lifters so you dont have to brake them in.
What you are reading is for engines that dont have a roller cam.

Jay
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Old Jul 31, 2003 | 05:43 PM
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Default Re: Brake-in for new cam (MrJay)

Don't forget to put lots of assembly lube on everything!
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Old Jul 31, 2003 | 06:07 PM
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Default Re: Brake-in for new cam (Gar)

Don't forget to put lots of assembly lube on everything!
unless its a roller cam., then dont put any assembly lube on the cam or lifters, oil only...
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Old Jul 31, 2003 | 07:25 PM
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Default Re: Brake-in for new cam (neverendingproject)

:iagree: :iagree:
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