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FJR Motorcycle Forums
FJR Specific Discussion
Engine Didn't Grenade/Something Happened/And Final Report
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<blockquote data-quote="mcatrophy" data-source="post: 1399307" data-attributes="member: 3187"><p>My understanding is that up to 2012, the engines had pressed-in, ceramic coated, steel liners. From 2013-onwards they were all-aluminium with a plated-on coating, supposedly to improve cooling. I think there has been a change in coating material since 2013, but I am not sure. Nikasil sounds familiar, but whether the "changed from" or the "changed to", dunno. Far too many birthdays.</p><p></p><p>So the picture does show a bit of the steel cylinder liner broken. Ouch.</p><p></p><p>One comment I have is that there's a lot of carbon build-up, which suggests the engine hasn't been happy for a while.</p><p></p><p>Obvious questions, is the piston still seized? Is there a broken piston-ring or other debris that could be a cause? I tried to see from the other pics if there was a broken spark plug, but couldn't make any detail out. Valves all look ok (apart from said carbon).</p></blockquote><p></p>
[QUOTE="mcatrophy, post: 1399307, member: 3187"] My understanding is that up to 2012, the engines had pressed-in, ceramic coated, steel liners. From 2013-onwards they were all-aluminium with a plated-on coating, supposedly to improve cooling. I think there has been a change in coating material since 2013, but I am not sure. Nikasil sounds familiar, but whether the "changed from" or the "changed to", dunno. Far too many birthdays. So the picture does show a bit of the steel cylinder liner broken. Ouch. One comment I have is that there's a lot of carbon build-up, which suggests the engine hasn't been happy for a while. Obvious questions, is the piston still seized? Is there a broken piston-ring or other debris that could be a cause? I tried to see from the other pics if there was a broken spark plug, but couldn't make any detail out. Valves all look ok (apart from said carbon). [/QUOTE]
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FJR Motorcycle Forums
FJR Specific Discussion
Engine Didn't Grenade/Something Happened/And Final Report
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