I have owned this vehical from new it has 126,000km on the clock.it has a knocking noise some times sounds dry not solid enough to be a big end bearing but suspect it could be a gudgen pin is there an oil feed to the gudgen pin? is it possible one could be partly blocked the engine is quieter after a long run for a few days it has had alot of short running over the past couple of years? would an engine oil flush help the engine before the next oil change?The runs very well apart from this knock
No, there is no direct oil feed to the gudgeon pin. There is a cross drilling on the upper half of the bigend of the conrod that allows oil to be sprayed upwards at the right moment to both lubricate and cool the piston. It sounds more like you have piston slap (excessive piston to bore clearance) that will be more pronounced when the engine is cold. It's always a good idea to either let your engine warm up a little before driving, or just drive sedately until it has warmed up.
It could be small end related, but that noise is generally only noticable at that point where the load is least on the piston to conrod connection - ie: at the time where the piston pushing the conrod changes to the conrod pushing the piston, and vice-versa. Don't worry about an oil flush. Sometimes it's the carbon deposits that stop an engine making MORE rattles!
705 views
Usually answered in minutes!
×