Re: break in secrets

Posted by dr.sportster on February 12, 2005 at 07:16:05 from (209.247.222.86):

In Reply to: break in secrets posted by mattd on February 11, 2005 at 16:13:42:

Matt I just read over that site breifly.I disagree with the principle of his method.It is speaking about jap bikes.These motors have way less piston speed than motors I rebuild.Dyno break in or hard run break in may be suitable for tractors also but if you run in a long stoke motor with high to excessive piston speeds you will ruin the rings.I too have disassembled motors for inspection to satisfy my own curiosity.He is not really showing enough data other than the picture of the one honda piston which could have the brown mark for several other reasons.I might subcribe to his magazine but I will break in my motors per instructions of the speed equipment I install.However he might still be correct for motors with normal piston speeds.also he states this is possible due to modern machining methods.The way Im building a motor is the same for years.What modern machining other than a finer cross hatch pattern is he talking about.I believe his break in may be right for those short stroke hondas just not for all type motors.Good info anyhow.I will be glad to discuss this further as there are many factors that affect the sealing of the piston rings.

Follow Ups:

• Re: break in secrets dr.sportster 07:35:07 02/12/05 (2)
  • Re: break in secrets dr.sportster 14:11:54 02/12/05 (1)
    • Re: break in secrets dr.sportster 06:15:36 02/13/05 (0)

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