WebAug 12, 2011 · The problem was that seven (7) of the eight (8) pistons had collapsed skirts. I asked him what caused the skirts to collapse and he stated that high … WebOct 17, 2006 · This allows the stressed piston skirt to relax into the new larger skirt size permanently. BMW motorcycle piston "seizure" A seized piston is when the piston gets so large in the cylinder that some of the sides scuff off onto the cylinder walls. It has gone past the collapsed stage of heat mentioned above. The piston(s) on a BMW don't stop moving.
Piston Diagnosis – A rough Guide
WebSymptom - Shattered piston skirt. Cause - Piston to cylinder clearance too large or engine over-revved. Reason - If the piston to cylinder clearance is too large it allows the piston … WebSep 4, 2012 · Spring ahead a couple months, driven the car a fair amount, but an extended run this past weekend has about convinced me that the now returned heavier internal 'clunk' is a collapsed piston skirt and brought about after an overspeed event last year when I tore the motor mounts apart, hanging the throttle shaft near wide open for a couple ... the comfy jr teal
Piston Damage Symptoms You Should Not Ignore - MZW Motor
WebApr 28, 2009 · You likely have piston slap. Not detonation. Your piston to cyl wall clearance may be too much. Possibly due to collapsed piston skirt(s) or cracked skirts. Pull the … WebJul 1, 2008 · In cases where piston scuffing is lubrication related, the cause may be a low oil level (due to a lack of maintenance or oil leaks), low oil pressure (the pistons and rings rely on splash lubrication, so reduced oil … WebAug 28, 2006 · I would be asking for someone to measure the cyl walls /bore and the piston diameter..that is some serious skirt damage.. the only time I have seen wear like that … the comfy jr blush