Break in procedure, after initial start up?? - Page 2 - Chevelle Tech
2002 General Tech questions from 2002

 
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post #16 of 17 (permalink) Old Mar 24th, 05, 10:05 AM
 
Join Date: Feb 2005
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Re: Break in procedure, after initial start up??

I went to a TRW engine clinic and this is what they said to do after all the stuff you have already read about (cam break in etc.) Take car to long stretch of road and lug motor from stand still up to 35 mph( get in high gear as quickly as possible) then shift to low gear and slow down under compression. Do this at least ten times or more. They said this forces rings against cyl. wall and aids in seating them. I did this on my 327 and drag raced it two days later. I ran that engine as a daily driver and bracket racer for 11 years. Then I pulled it out and pulled the heads, you could still see the hone marks in the cyl walls. I reinstalled the heads and sold the engine to a friend that still has it in his 57 chevy. I also ran slick 50 after the engine had about 20,000 miles on it. It never burned oil.
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post #17 of 17 (permalink) Old Jul 24th, 06, 9:46 PM
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Rod
 
Join Date: Jan 2005
Location: Atwater, California
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Re: Break in procedure, after initial start up??

This is the break in procedure Ive used on my last 5 motors, two two-strokes and 3 v-8's (1-350, 1-302, 1-409) all have been working well no problems. The first motor (350) is going on 75,000 miles and 8 years.

http://www.mototuneusa.com/break_in_secrets.htm

9 years and FINALLY she's drivable, just in time for my first born son.
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Rod Hill
IT/AG instructor
Ag. Mechanics, Ag. Power Mechanics, Ag. Wood
Los Banos High
Los Banos California
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