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FJR Motorcycle Forums
FJR Specific Discussion
FJR Mileage Breakin
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<blockquote data-quote="Fred W" data-source="post: 838374" data-attributes="member: 3828"><p>Cheers to that... :drinks: </p><p></p><p>Breaking in an engine <em>used to</em> mean seating the piston rings and scuffing in the honing / machine marks in the cast iron cylinders bores or sleeves to get maximum compression.</p><p></p><p>Our modern alloy FJR blocks have a thin, ultra hard, ceramic composite cylinder wall coating. I'm not a mechanical engineer, but I think that means that there isn't a lot of bore wall break-in to be accomplished.</p><p></p><p>Lots of other plain bearings need to be broken in, sure, and things <em>will </em>"loosen up" some. And there's always a little manufacturing swarf that need to be flushed out by the oil and captured in the filter. But really I think engine "break-in" is an archaic term.</p><p></p><p>I'm still breaking mine in at 45k miles... <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p></blockquote><p></p>
[QUOTE="Fred W, post: 838374, member: 3828"] Cheers to that... :drinks: Breaking in an engine [I]used to[/I] mean seating the piston rings and scuffing in the honing / machine marks in the cast iron cylinders bores or sleeves to get maximum compression. Our modern alloy FJR blocks have a thin, ultra hard, ceramic composite cylinder wall coating. I'm not a mechanical engineer, but I think that means that there isn't a lot of bore wall break-in to be accomplished. Lots of other plain bearings need to be broken in, sure, and things [I]will [/I]"loosen up" some. And there's always a little manufacturing swarf that need to be flushed out by the oil and captured in the filter. But really I think engine "break-in" is an archaic term. I'm still breaking mine in at 45k miles... ;) [/QUOTE]
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FJR Motorcycle Forums
FJR Specific Discussion
FJR Mileage Breakin
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